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Wolowic, Jennifer. "Research tools or collaborative toys? cameras and participatory research with youth." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/1601.
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My participatory photography and video project with a First Nations teen drop in center in Northern British Columbia has revealed the benefits of viewing cameras as toys through which community-based research projects can actively engage the world rather than as tools for authoritative observers. The interactive play between the instant feed back of digital cameras placed in youths’ hands creates relationships that allow for the exploration of delicate subjects and intimate moments captured on video. The display of meanings constructed through visual images reveal powerful possibilities for visual research methodologies used in collaborative research.
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Pigion, Richard G. "Optimum magnification and perspective for non-single-lens-reflex camera systems." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54790.
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The primary purpose of this investigation was to determine how magnification and perspective alter a person's judgements of pleasantness for images recorded in photographic prints. The magnification and perspective of four scenes were varied by recording each scene with each of six camera-lens focal lengths (28 mm, 35 mm, 50 mm, 70 mm, 85 mm, and 105 mm) from each of six distances. The distances revolved around a reference distance depending on scene content. The scenes were selected to be typical of the types of one person or multi-person scenes recorded most often by consumers of non-single-lens-reflex (non-SLR) 35 mm camera systems. The psychophysical scaling technique of magnitude estimation was used to assess each subjects' degree of pleasantness for each print in a single stimulus presentation format. The subjects were actual consumers of non-SLR camera systems.
The results indicate that a wide variety of lens/distance combinations was found to produce pleasing images for each scene. Specifically, the combination of lens/distance which was representative of currently available non-SLR camera systems was almost always among the highest rated images for each scene. This result indicates that these consumers are quite pleased with the images they currently receive. These results are most easily explained using the theory of a compensation mechanism of picture perception. Suggestions for future research include the study of range effects, different methods of assessment, and attempts at understanding the emotional impact of photographs and how it relates to judgements of pleasantness.<br>Ph. D.
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Can, Ozgun Emre. "Camera Trapping Large Mammals In Yenice Forest Habitats: A Feasibility Study For Camera Trapping Large Mammals In Yenice Forests, Turkey." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609974/index.pdf.
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Widely applicable, quantitative field methods are needed to gather wildlife data for conservation and management initiatives in Turkey. In order to evaluate the use of camera traps in forest habitats of Turkey, we conducted a 5 phase camera trap survey by using 16 passive infrared-triggered cameras with a total sampling effort of 1200 camera trap days in Yaylacik Research Forest, a 50 km2 forest patch of Yenice Forest in Karabü<br>k during January-May 2006.
The camera trap survey confirmed the presence of grey wolf (Canis lupus), brown bear (Ursus arctos), wildcat (Felis silvestris), red fox (Vulpes vulpes), badger (Meles meles), pine marten (Martes martes), roe deer (Capreolus capreolus) and wild boar (Sus scrofa) in the study area. The camera trap survey also revealed the presence of jackal (Canis aureus) and brown hare (Lepus europaeus), whose presence were not known by people living and working in the area. Contrary to the local belief, neither camera trapping survey nor ground survey confirmed the presence of lynx (Lynx lynx) in Yaylacik Research Forest.
The wolf was observed to be crepuscular and the wildcat showed a diurnal activity pattern. Wildcat seemed to avoid other carnivores spatially and temporally. Simulation studies suggested that camera trap surveys should last 14 days for wolf, 13 days for wildcat, 10 days for pine marten, and 11 days for roe deer, while it is advisable to conduct longer surveys, probably 15-20 days, for wild boar, red fox and brown bears.
The estimated population size for wildcat was 9 (SE=2.28227) with 95% confidence interval of 9 to 25 in the study area. A minimum of 6 brown bears were present in the study area.
Our study indicated that the local knowledge about the presence of wildlife should be considered by researchers, but it cannot replace scientific surveys conducted by field biologists.
This study was the first attempt to assess the presence, relative abundance, activity patterns and diversity of multiple mammal species by the use of camera trapping methodology in Turkey. The results suggest that camera trap surveys have the potential for gathering wildlife data at larger scales in Turkey, where information gap on large mammals is an obstacle for effective management and conservation of mammals.
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Irie, Kenji. "Noise-limited scene-change detection in images." Diss., Lincoln University, 2009. http://hdl.handle.net/10182/1351.
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This thesis describes the theoretical, experimental, and practical aspects of a noise-limited method for scene-change detection in images. The research is divided into three sections: noise analysis and modelling, dual illumination scene-change modelling, and integration of noise into the scene-change model. The sources of noise within commercially available digital cameras are described, with a new model for image noise derived for charge-coupled device (CCD) cameras. The model is validated experimentally through the development of techniques that allow the individual noise components to be measured from the analysis of output images alone. A generic model for complementary metal-oxide-semiconductor (CMOS) cameras is also derived. Methods for the analysis of spatial (inter-pixel) and temporal (intra-pixel) noise are developed. These are used subsequently to investigate the effects of environmental temperature on camera noise. Based on the cameras tested, the results show that the CCD camera noise response to variation in environmental temperature is complex whereas the CMOS camera response simply increases monotonically. A new concept for scene-change detection is proposed based upon a dual illumination concept where both direct and ambient illumination sources are present in an environment, such as that which occurs in natural outdoor scenes with direct sunlight and ambient skylight. The transition of pixel colour from the combined direct and ambient illuminants to the ambient illuminant only is modelled. A method for shadow-free scene-change is then developed that predicts a pixel's colour when the area in the scene is subjected to ambient illumination only, allowing pixel change to be distinguished as either being due to a cast shadow or due to a genuine change in the scene. Experiments on images captured in controlled lighting demonstrate 91% of scene-change and 83% of cast shadows are correctly determined from analysis of pixel colour change alone. A statistical method for detecting shadow-free scene-change is developed. This is achieved by bounding the dual illumination model by the confidence interval associated with the pixel's noise. Three benefits arise from the integration of noise into the scene-change detection method: - The necessity for pre-filtering images for noise is removed; - All empirical thresholds are removed; and - Performance is improved. The noise-limited scene-change detection algorithm correctly classifies 93% of scene-change and 87% of cast shadows from pixel colour change alone. When simple post-analysis size-filtering is applied both these figures increase to 95%.
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Purcell, Servera Natalia. "De la caza del objeto al movimiento en la imagen: reflexiones sobre las posibilidades y límites de la cámara fílmica y fotográfica en la investigación social." Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/367454.
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Esta tesis presenta las posibilidades y los límites en el uso de la cámara fotográfica y fílmica en la investigación e intervención social. Se enfoca en el surgimiento de la cámara e imagen fotográfica y sus implicaciones en el contexto de la ciencia positiva, como instrumento de aprehensión de la realidad, materializando las pretensiones de objetividad y neutralidad en la investigación. Por otro lado, se presentan otras prácticas y modalidades de investigación con cámara fotográfica y de vídeo que cuestionan el enfoque representativo y documentalista en el campo de lo audiovisual, más cercanas a perspectivas reflexivas, participativas y deconstructivas en la investigación social. El trabajo se hizo a base de la revisión y análisis de literatura en el campo de la investigación audiovisual etnográfica, así como la documentación fílmica de una movilización comunitaria, La Fiesta del Límber, en el contexto de rescate de terrenos, en Ceiba y Naguabo, Puerto Rico, y que se puede acceder a través de la página http://youtu.be/Vgy2SAb1UIY. Desde estas dos instancias, se reflexiona sobre la autoría textual, la representación de los sujetos, la colaboración investigativa, así como lo que implica desplazarse, investigar e intervenir con cámara en proyectos psicosociales. Finalmente, se presentan las aportaciones de la investigación con cámaras para la práctica psicosocial.<br>This thesis aims to present the possibilities and limits on the use of the camera and the images in research and social intervention, both as a research tool and a format to communicate the research experience with others. It focuses on the emergence of camera and photographic image and its implications in the context of positivist science, as an ally to the interests of the apprehension of reality and an instrument connected to the aims of objectivity and neutrality in social research. Subsequently, we explore other research practices and modalities with video camera that question the representative and documentary approach in the field of audiovisual, closer to reflective, participatory and deconstructive perspectives in social research. The study was based on revision and analysis of literature in the field of audiovisual ethnographic research and a filmic documentation, La Fiesta del Límber, about community mobilization in the context of land rescues in Ceiba and Naguabo, Puerto Rico, which can be accessed at http://youtu.be/Vgy2SAb1UIY. From these two instances, we reflect on the textual authorship, representations we make in our texts, research collaboration, as well as what it implies to move, investigate and intervene with camera in psychosocial projects. Finally, we present the contributions of camera research for psychosocial practices.
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McGhee, Scott K. "Evaluation of an uncooled focal plane array thermal imaging camera for effusion cooling research." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0004/MQ45288.pdf.
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Jůnek, Tomáš. "Camera trap as a non-invasive tool in research on rare and elusive mammals." Doctoral thesis, Česká zemědělská univerzita v Praze, 2016. http://www.nusl.cz/ntk/nusl-259693.
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Knowledge of the richness of species that inhabit a particular area is an essential metric for both conservationists and practitioners. Relatively cost-efficient and easily standardized solution has occurred in last the decades with the massive digitalization of photography, the camera trap. Such an independent detector is bias-free in the probability of recording objects passing by and in most cases does not disturb animals. Recent discoveries of new mammal species are proof of this. Moreover, camera traps allow for insight into the otherwise hidden behaviour of even the most timid animals. My interest in photography, endangered animal species and nature conservation has led me to the decision to apply a novel method in practice. Me and my team have focused on three different use-confirmation of the accuracy of capture-recapture population estimates, temporal overlaps of invasive species with its prey and competitors, and first ever camera-trapping species inventory in the Niokolo-Koba National Park. Thanks to personal experiences and contacts from World biodiversity hotspots I was able to successfully employ an approach and carry out field studies. I hope that our results will contribute to the development of effective conservation strategies and the methodology itself.
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Tornberg, Aron, and Sofia Wennström. "Development and Research in Previsualization for Advanced Live-Action on CGI Film Recording." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-137670.
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A major disadvantage of shooting on green screen with CGI is that the director cannot see or interact with the virtual elements in the scene and thus get a realistic view of how the end result will look like, and also not being able to make changes as necessary by moving objects and actors around during the shooting session. This disadvantage can be mitigated by the use of previsualization where the director is given a rough take of what the final cut will look like by combining the filmed material with the virtual environment in real-time. This masters thesis work aims to come up with solutions for improving the film studio Stiller Studioss previsualization system. This involves a review and integration of game engines for previsualization in a motion control green screen studio, a camera calibration process with blur detection and automatic selection of images as well as research into camera tracking and depth compositing.
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Mannuru, Sravanthi. "A Fully Automated Geometric Lens Distortion Correction Method." University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1323312991.
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Lind, Mia, and Eva Sundblad. "The Surveillance Camera Players : Ett konstnärligt motstånd mot övervakningssamhället." Thesis, Linköping University, Department of Thematic Studies, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1904.
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<p>The purpose with this essay is to examine how arts and politics integrate to raise urgent messages and call upon social changes. Performance art as an artistic manifestation against the surveillance society has been studied to clarify this integration and through an empirical examination of the anarchistic performance group <i>The Surveillance Camera Players</i>. This group formed in New York City 1996 as a manifestation against the increased use of surveillance cameras in public places in Manhattan. Through performance in front of these cameras, The Surveillance Camera Players are able to express their protest against the surveillance society which, occurring to them, violates citizens constitutionally right to privacy. The development and signification of the surveillance society are examined through theoretical perspective by foremost Michel Foucault, but also by contemporary scientist in that field. Theories about political art have been studied for the understanding of the work of <i>The Surveillance Camera Players</i>.</p><br><p>Uppsatsens syfte är att undersöka hur konst och politik integreras i syfte att föra fram ett budskap och på så sätt försöka påverka till samhällsförändringar. För att tydliggöra detta studeras performancekonst som ett konstnärligt motstånd mot övervakningssamhället och detta exemplifieras genom en empirisk undersökning av den anarkistiska teatergruppen <i>The Surveillance Camera Players, SCP</i>. Denna grupp bildades i New York City 1996, som en manifestation mot det ökande användandet av övervakningskameror på offentliga platser på Manhattan. Genom performance, framför dessa kameror, ger SCP uttryck för sitt motstånd mot övervakningssamhället, som enligt dem, kränker medborgarnas konstitutionella rätt till privatliv. I uppsatsen studeras övervakningssamhällets utveckling och betydelse genom ett teoretiskt perspektiv av framförallt Michel Foucault och även samtida forskare inom området. För förståelsen av <i>The Surveillance Camera Players</i> verksamhet studeras teorier kring politiskt medveten konst. </p>
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Goel, Shlok. "Research, Design, and Implementation of Virtual and Experimental Environment for CAV System Design, Calibration, Validation and Verification." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1595368946630713.
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Morilla, Cabello David. "Vision Based Control for Industrial Robots : Research and implementation." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-17583.
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The automation revolution already helps in many tasks that are now performed by robots. Increases in the complexity of problems regarding robot manipulators require new approaches or alternatives in order to solve them. This project comprises a research in different available software for implementing easy and fast visual servoing tasks controlling a robot manipulator. It focuses on out-of-the-box solutions. Then, the tools found are applied to implement a solution for controlling an arm from Universal Robots. The task is to follow a moving object on a plane with the robot manipulator. The research compares the most popular software, the state-of-the-art alternatives, especially in computer vision and also robot control. The implementation aims to be a proof of concept of a system divided by each functionality (computer vision, path generation and robot control) in order to allow software modularity and exchangeability. The results show various options for each system to take into consideration. The implementation is successfully completed, showing the efficiency of the alternatives examined. The chosen software is MATLAB and Simulink for computer vision and trajectory calculation interfacing with Robotic Operating System (ROS). ROS is used for controlling a UR3 arm using ros_control and ur_modern_driver packages. Both the research and the implementation present a first approach for further applications and understanding over the current technologies for visual servoing tasks. These alternatives offer different easy, fast, and flexible methods to confront complex computer vision and robot control problems.
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Perrot, Clément. "Imagerie directe de systèmes planétaires avec SPHERE et prédiction des performances de MICADO sur l’E-ELT." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC212/document.
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Cette thèse s'inscrit dans la thématique de l'étude de la formation et de l'évolution des systèmes planétaire grâce à la méthode de l'imagerie à haut contraste, aussi appelée imagerie directe, par comparaison aux méthodes de détection dites "indirectes". Le travail que je présente dans ce manuscrit s'articule en deux parties bien distinctes. La première partie concerne la composante observationnel de ma thèse, à l'aide de l'instrument SPHERE installé au Very Large Telescope, au sein du consortium du même nom. L'instrument SPHERE a pour objectif la détection et la caractérisation de jeunes et massives exoplanètes mais également de disques circumstellaires allant des très jeune disques protoplanétaires aux disques de débris, plus âgés. Ainsi, je présente dans ce manuscrit ma contribution au programme SHINE, un grand relevé de 200 nuits dont le but est la détection de nouvelles exoplanètes ainsi que la caractérisation spectrale et orbitale des quelques compagnons déjà connus. J'y présente également les deux études de disques circumstellaires que j'ai réalisées, autour des étoiles HD 141569 et HIP 86598. La première étude ayant permis la découverte d'anneaux concentriques à quelques dizaine d'UA de l'étoile ainsi que de asymétrie dans le flux du disque inhabituelle. La seconde étude porte sur la découverte d'un disque de débris présentant également une asymétrie en flux inhabituelle. La deuxième partie concerne la composante instrumentale de mon travail de thèse, au sein du consortium MICADO, en charge de la conception de la caméra du même nom qui sera l'un des instruments de première lumière de l'Extremely Large Telescope Européen (ELT). Dans ce manuscrit, je présente l'étude que j'ai menée afin de définir le design de certain composant du mode coronographique de MICADO tout en tenant compte des contraintes de l'instrument qui n'est pas dédié à l'imagerie haut contraste, contrairement à SPHERE<br>This thesis is performed in the context of the study of the formation and evolution of planetary systems using high contrast imaging, also known as direct imaging in contrast to so-called "indirect" detection methods. The work I present in this manuscript is divided into two distinct parts.The first part concerns the observational component of my thesis, using the SPHERE instrument installed at Very LargeTelescope. This work was done as part of the consortium of the same name. The purpose of the SPHERE instrument is to detect and characterize young and massive exoplanets, but also circumstellar disks ranging from very young protoplanetary disks to older debris disks. In this manuscript, I present my contribution to the program SHINE, a large survey with an integration time of 200 nights' worth of observation, the goal of which is the detection of new exoplanets and the spectral and orbital characterization of some previously-known companions. I also present the two studies of circumstellar disks that I made, around the stars HD 141569 and HIP 86598. The first study allowed the discovery of concentric rings at about ten AU of the star along with an unusual flux asymmetry in the disk. The second study is about the discovery of a debris disk that also has an unusual flux asymmetry. The second part concerns the instrumental component of my thesis work done within the MICADO consortium, in charge of the design of the camera of the same name which will be one of the first light instruments of the European Extremely Large Telescope (ELT). In this manuscript, I present the study in which I define the design of some components of the coronagraphic mode of MICADO while taking into account the constraints of the instrument - which is not dedicated to high contrast imaging, unlike SPHERE
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Berndt, Lisa A. "The effect of floral resources on the leafroller (Lepidoptera: Tortricidae) parasitoid Dolichogenidea tasmanica (Cameron)(Hymenoptera: Braconidae) in selected New Zealand vineyards." Lincoln University, 2002. http://hdl.handle.net/10182/1045.
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In this study, buckwheat (Fagopyrum esculentum Moench) and alyssum (Lobularia maritima (L.)) flowers were used to examine the effect of floral resources on the efficacy of the leafroller parasitoid Dolichogenidea tasmanica (Cameron) in vineyards. This was done by assessing the influence of these flowers on parasitoid abundance and parasitism rate, and by investigating the consequences of this for leafroller abundance. In laboratory experiments, alyssum flowers were used to investigate the effect of floral food on the longevity, fecundity and sex ratio of D. tasmanica. Dolichogenidea tasmanica comprised more than 95 % of parasitoids reared from field collected leafrollers in this study. The abundance of D. tasmanica during the 1999-2000 growing season was very low compared with previous studies, possibly due to the very low abundance of its leafroller hosts during the experiment. The number of males of this species on yellow sticky traps was increased (although not significantly) when buckwheat flowers were planted in a Marlborough vineyard; however, the number of female D. tasmanica on traps was no greater with flowers than without. The abundance of another leafroller parasitoid, Glyptapanteles demeter (Wilkinson)(Hymenoptera: Braconidae), on traps was also not significantly affected by the presence of buckwheat flowers, although females of this species were caught in greater numbers in the control than in buckwheat plots. Naturally-occurring leafrollers were collected from three vineyard sites in Marlborough, and one in Canterbury during the 2000-2001 season to assess the effect of buckwheat and alyssum flowers on parasitism rate. Parasitism rate more than doubled in the presence of buckwheat at one of the Marlborough vineyards, but alyssum had no effect on parasitism rate in Canterbury. A leafroller release/recover method, used when naturally-occurring leafrollers were too scarce to collect, was unable to detect any effect of buckwheat or alyssum on parasitism rate. Mean parasitism rates of approximately 20 % were common in Marlborough, although rates ranged from 0 % to 45 % across the three vineyard sites in that region. In Canterbury in April, mean parasitism rates were approximately 40 % (Chapter 4). Rates were higher on upper canopy leaves (40-60 %) compared with lower canopy leaves and bunches (0-25 %). Leafroller abundance was apparently not affected by the presence of buckwheat in Marlborough, or alyssum in Canterbury. Buckwheat did, however, significantly reduce the amount of leafroller evidence (webbed leafroller feeding sites on leaves or in bunches) in Marlborough, suggesting that the presence of these flowers may reduce leafroller populations. Leafrollers infested less than 0.1 % of Cabernet Sauvignon leaves throughout the 1999-2000 growing season, but increased in abundance in bunches to infest a maximum of 0.5 % of bunches in late March in Marlborough. In Pinot Noir vines in the 2000-2001 season, leafroller abundance was also low, although sampling was not conducted late in the season when abundance reaches a peak. In Riesling vines in Canterbury, between 1.5 % and 2.5 % of bunches were infested with leafrollers in April. In the laboratory, alyssum flowers significantly increased the longevity and lifetime fecundity of D. tasmanica compared with a no-flower treatment. However, daily fecundity was not increased by the availability of food, suggesting that the greater lifetime fecundity was related to increases in longevity. Parasitoids were also able to obtain nutrients from whitefly honeydew, which resulted in similar longevity and daily fecundity to those when alyssum flowers were present. The availability of food had a significant effect on the offspring sex ratio of D. tasmanica. Parasitoids reared from naturally-occurring leafrollers produced an equal sex ratio, assumed to be the evolutionarily stable strategy (ESS) for this species. In the laboratory, this ESS was observed only when parasitoids had access to alyssum flowers. Without food, or with honeydew only, sex ratios were strongly male-biased. In the field, floral resources affected the sex ratio of D. tasmanica only when this species was reared from leafrollers released and recovered in Marlborough. In that experiment, buckwheat shifted the sex ratio in favour of female production from the equal sex ratio found in control plots. No firm explanations can be given to account for these results, due to a lack of research in this area. Possible mechanisms for the changes in sex ratio with flowers are discussed. This study demonstrated that flowers are an important source of nutrients for D. tasmanica, influencing the longevity, fecundity and offspring sex ratio of this species. However, only some of the field experiments were able to show any positive effect of the provision of floral resources on parasitoid abundance or parasitism rate. More information is needed on the role these parasitoids, and other natural enemies, play in regulating leafroller populations in New Zealand vineyards, and on how they use floral resources in the field, before recommendations can be made regarding the adoption of this technology by growers.
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Irvin, N. A. "Understorey management for the enhancement of populations of a leafroller (Lepidoptera: Tortricidae) parasitoid (Dolichogenidea tasmanica (Cameron)) in Canterbury, New Zealand apple orchards." Lincoln University, 1999. http://hdl.handle.net/10182/1111.
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This study investigated understorey management in Canterbury, New Zealand, apple orchards for the enhancement of populations of Dolichogenidea tasmanica (Cameron) (Braconidae) for leafroller (Lepidoptera: Tortricidae) biological control. The first objective was to determine the influence of understorey plants on the abundance of D. tasmanica and leafroller parasitism, and to investigate the mechanisms behind this influence. The second was to determine the most suitable understorey plants in terms of their ability to enhance parasitoid abundance, leafroller parasitism, parasitoid longevity, parasitoid fecundity and its ability to not benefit leafroller. Results from three consecutive field trials showed that buckwheat (Fagopyrum esculentum Moench), coriander (Coriandrum sativum L.), alyssum (Lobularia maritima (L.) Desv), and, to a lesser extent, broad bean (Vicia faba L.), enhanced parasitoid abundance and leafroller parasitism. The mechanisms behind the effects of understorey plants had previously been unexplored. However, results here showed that it was the flowers or the buckwheat that 'attracted' the parasitoid to the plant and not the shelter, aphids or microclimate that the plant may also provide. Providing flowering plants in the orchard understorey also increased immigration of parasitoids and enhanced parasitoids and enhanced parasitoid longevity and fecundity in the laboratory. In contrast, the understorey plants had no influence on the female:male ratio of D. tasmanica. Although coriander enhanced leafroller parasitism three-fold in field experiments compared with controls, it failed to enhance the longevity of both sexes of D. tasmanica in the laboratory compared with water-only. Broad bean significantly enhanced parasitoid abundance three-fold and significantly increased parasitism from 0% to 75% compared with the controls on one leafroller release date. However, laboratory trials showed that of male D. tasmancia but it did not enhance female longevity. Also, female D. tasmanica foraging on broad bean produced a total of only three parasitoid cocoons, but this result was based on an overall 6.5% survival of larvae to pupae or to parasitoid cocoon. Furthermore, results suggested that extrafloral nectar secretion decreased as the plants matured. Phacelia (Phacelia tanacetifolia Benth.) did not significantly enhance parasitism rate in the field compared with controls, and numbers of D. tasmanica captured by suction sampling were significantly lower in phacelia treatments compared with alyssum, buckwheat and control plots. Also, laboratory experiments showed that survival of D. tasmanica on phacelia flowers was equivalent to that on water-only and significantly lower than on buckwheat. These results suggest that phacelia does not provide nectar to D. tasmanica, only pollen, and therefore is not a suitable understorey plant for D. tasmanica enhancement in orchards. Buckwheat and alyssum showed the most potential as understorey plants for the enhancement of natural enemies. Buckwheat not only increased numbers of D. tasmanica seven-fold, but also increased numbers of beneficial lacewings (Micromus tasmaniae (Walker)) and hover flies (Syrphidae) captured on yellow sticky traps compared with the controls. It significantly increased leafroller parasitism by D. tasmanica from 0% to 86% compared with the controls (on one date only), and in the laboratory enhanced D. tasmanica longevity and increased fecundity compared with water-only. Similarly, alyssum significantly increased parasitism rate compared with controls, and two-fold more D. tasmanica were suction sampled in these plots compared with controls. It also enhanced longevity of both sexes of D. tasmanica compared with water, and showed the most favourable characteristics in terms of being of no benefit to leafrollers. This is because it was not preferred over apple by leafroller larvae and when they were forced to feed on it, it caused high mortality (94.3%) and low pupal weight (15 mg). Furthermore, alyssum did not enhance the number of fertile eggs produced by adult leafrollers compared with water only. However, further research is required to address the overall effect of buckwheat and alyssum on crop production and orchard management, including effects on fruit yield and quality, frost risk, disease incidence, soil quality, weeds and other pests. Also, research into the ability of these plants to survive in the orchard with little maintenance, and into the optimal sowing rates, would be useful. Sampling natural populations of leafroller within each treatment showed that damage from leafrollers and the number of leafroller larvae were respectively 20.3% and 29.3% lower in the flowering treatments compared with the controls. Furthermore, field trials showed up to a six-fold increase in leafroller pupae in controls compared with buckwheat and alyssum. This suggests that increasing leafroller parasitism rate from understorey management in orchards will translate into lower pest populations, although neither larval numbers/damage nor pupal numbers differed significantly between treatments. Trapping D. tasmanica at a gradient of distances showed that this parasitoid travels into rows adjacent to buckwheat plots, indicating that growers may be able to sow flowering plants in every second or third row of the orchard, and still enhance leafroller biocontrol while minimising the adverse effects of a cover crop. Sowing buckwheat and alyssum in orchard understoreys may enhance biological control of apple pests in organic apple production and reduce the number of insect growth regulators applied in IFP programmes. However, the challenge still remains to investigate whether conservation biological control can reduce leafroller populations below economic thresholds.
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Raichur, Rohan. "A Novel Technique to Improve the Resolution and Contrast of Planar Nuclear Medicine Imaging." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1226955205.
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Korver, Ruth M. "In memory of cats : the camera and the ordinary moment : a thesis presented in partial fulfilment of the requirements for the degree of Masters in Fine Arts at Massey University, Wellington, New Zealand." Massey University, 2009. http://hdl.handle.net/10179/956.
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In memory of cats: The camera and the ordinary moment looks at the way in which families use photographs to remember the past. Photography’s offer of memory is limited to a visual trace, so strategies of oral telling are examined to interrogate the way in which memories can be recovered from photographs. Martha Langford’s study of the similarities between structures in oral culture and the photograph album and Annette Kuhn’s strategies for reading family photographs in a broader historical context, are used to examine and recover memories from my own photographic archive. Using moving image to record those memories and then tell how that photographic evidence has shaped my present, is a process suggested by Linda Williams in her writing about how postmodern documentary can use the past to intervene in the present. Other documentary styles, performative documentary and the essay film, offer a structure for personal memories to be revisited and re-presented to public viewers. Offering a space for personal or specific memories to be understood or related to by a viewer is discussed by Lisa Saltzman, who looks at indexical forms other than the photograph, like casting and tracing. These ideas culminated in my video work, A Clowder of Cats, which explores the losses that have been a part of my history, through photographs of the cats my family has owned. The camera gives us a strategy to remember moments that may otherwise have been forgotten, and moving image provides a space for those ordinary moments to be bought back to the present.
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Baker, Kenneth Rex III. "Lights, Camera, Creating Heroes in Action: Claus von Stauffenberg and the July 20th Conspirators in German and American Filmic Representations of the July 20th Plot." Bowling Green State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1241204154.
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Langri, Dharminder Singh. "Monitoring Cerebral Functional Response using sCMOS-based High Density Near Infrared Spectroscopic Imaging." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1558610822306817.
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Johnson, Betty J. PhD. "Video Meetings in a Pandemic Era: Emotional Exhaustion, Stressors, and Coping." Antioch University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=antioch1612609329629973.
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Chun, Tsai Hsiao, and 蔡曉郡. "The Research of Fall Detection by Multiple Cameras." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/13103148317972354096.
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碩士<br>南開科技大學<br>電子工程研究所<br>102<br>In the aging society with chronic disease medical environment trends, long-term care is not only more important and falls of in home care is a very common problem. According to Taiwan patient safety reporting system data show 2013 hospital stumbling on a total of 10,613, and activities that happen when he fell, and out of the bathroom and the bed moving up and down, falling object evaluates to 6,735 for the high-risk group, total number of 63.5%. According to the Ministry of health and welfare figures show that Taiwan's population aged 65 causes of death injuries occupy seventh place, which falls to second leading cause in the accident; therefore a perfect fall detection system is very important, and the current fall detection system consists of fixed, matching belt, and combined two functions of detection equipment.
Detection system using dual Kinect for this study fall detection experiments. Side-mounted detection equipment and head respectively, mining head position as the main detection targets. The results confirmed that we can accurately identify the head of the proposed placement, identification falls to reach the correct function.
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Chao, Wel-Cheng, and 趙偉丞. "A research on post earthquake seismic evaluation of buildings using two secure cameras." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/9amzpz.
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碩士<br>國立臺北科技大學<br>土木工程系土木與防災碩士班<br>105<br>Fast seismic assessment of a structure after an earthquake can facilitate recovery of operation and therefore improve resilience of the structure. For the facility that plays key roles of rescuing or refuge centers (such as hospitals, power facilities etc.) or high-value facilities (such as high-tech factories, financial centers, etc.), immediate operation again right after disrupt due to an earthquake for these structure is critical. Although many approaches have been proposed, they usually require additional measurement sensors and systems. However, since many buildings are already equipped with surveillance monitoring systems with sufficient luminance, using these existing equipments to extract story drift ratio from recorded images to evaluate building damage during an earthquake should be well-accepted by building owners. This proposed new approach is verified using shaking table experiments of a twin tower buiding. Commercial surveillance cameras are installed in the buildings and story drift ratios during earthquakes are used to evaluate damage level. The results are compared to the one measured by LVDT and accelerometers and feasibility of the proposed approach is verified.
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Guan, Ying Cin, and 官英欽. "The Research of Image Processing Technique in the Embedded System of Toy Cameras." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/89611373997489968426.
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碩士<br>國立臺灣科技大學<br>機械工程系<br>97<br>In this thesis, background subtraction technique and motion detection technique in the embedded system of digital toy camera have been used. Background subtraction technique was used to complete static object separation and motion object separation in the embedded system. In reality, a background picture was taken, followed by a picture of a body which was imposed into the background. With the use of background subtraction method, such as flood fill method, shadow detection method, dilation method, and erosion method, this can efficiently separate the body from the pure background of the picture. Besides, motion detection technique was used to quickly determine the orientation of the camera. In reality, the camera was moved by the operator so that the images taken vary. The orientation of the camera and move distance can be quickly and accurately determined by the use of fast research motion estimation algorithm in comparison to the continuous images. As a result, theses methods can be put into practice in the buddyland game of digital toy camera.
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Hsiao, Yen-Hua, and 蕭延華. "Research on the Display and Control of the User Interface of Digital Video Cameras." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/82759582276396637642.
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碩士<br>國立臺灣科技大學<br>設計研究所<br>93<br>The number of consumer electronic products increases as time progresses. There are not only changes in product appearance but also improvement and increase in function and technology, which consequently brings changes in operation. The types of interface vary with the development of functions. However, users require the interface to generate the concept of how to operate a whole system. A gap will be formed between users and the interface if users misunderstand any messages displayed by the interface. The design of interactive interface becomes really important in order to avoid the forming of the gap.
This research explored interactive interface design through displays and controls of digital video cameras. Different brands of digital video cameras have different types of the interface. Therefore, the interface of SONY DCR-TRV27 and Panasonic PV-GS120 was analyzed and compared in this research. Differences of the interface were explored through observation and task completion time of users who had never used the two digital video cameras. The results showed that there were significant variations in using the two digital video cameras, and the key points were as follows.
(1) There were variations in the tasks of focus adjustment, function change, blank search, night shot, white balance, photo browsing, and file deletion.
(2) Panasonic PV-GS120 was more efficient in hardware control.
(3) SONY DCR-TRV27 had higher usability in display and software control.
Finally, interviews and questionnaires were used to understand factors of the interface that influenced the achievement of operation. Furthermore, interface design guidelines of digital video cameras were proposed.
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CHEN, LI-FEI, and 陳麗妃. "A Research of Simple Firmware Vulnerabilities Analysis Mechanism on IoT Devices - Take IP Cameras as Examples." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/u3y9mg.
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碩士<br>中國文化大學<br>資訊管理學系碩士在職專班<br>107<br>Among the different types of IoT products, IP camera can be applied to various fields such as smart retail, smart buildings, smart transportation, smart factories, smart medical and smart homes. It has become the most popular IoT electronic products pur-chased by consumers in recent years. First, according to research, there will be up to 98 million security cameras in the world in 2019.
This research identifies the open source software used by firmware analysis tech-niques without comparing source code on 20 IP cameras. A total of 77 sets of open source software were identified by analyzing the 20 IP camera firmware files. A total of 66 high-risk, 130 medium-risk and 18 low-risk 214 were found by comparing the con-tents of the US National Vulnerability Database.
This testing method proposed by this research is a fast vulnerability detection mechanism, which aims to provide a reference for product security assessment of gen-eral consumer users. If the user finds a known security vulnerability in the currently used network camera, it should avoid directly connecting IP cameras to the Internet without any security protection mechanism.
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Shu-Yun, Chen, and 陳淑芸. "An Action Research of the Digital Cameras Combining the Observation is Theory-Laden Teaching Design and Studying Effects." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/17647374636998684466.
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碩士<br>國立花蓮師範學院<br>國小科學教育研究所<br>93<br>This study mainly explored digital cameras helping students to learn Science and Technology Learning Area when teachers teach Science and Technology Learning Area on the based of observation is theory-laden, trying to find out the learning process of students using digital cameras and the influence of the students’ learning about the process-skills in science education through digital cameras.
The action research was adopted to improve the situation of learning continuously by the feedback loop of planning, taking action, revising and re-planning. The results of this study were carried out through the students’ work sheets, the teaching plan and reflective journal, the interviewing of students, and the quantitative analysis of the questionnaires with triangulation principles.
The research results indicate that it is useful of students learning nature sciences by using digital cameras as a learning technology. On the based of observation is theory-laden, when students use checklist to observe, after the course, both in quantitative and qualitative data, the students’ science process skills are raised obviously, especially in observation, comparison and categorization, and communication.
The influence on students’ science process skills after the course includes: (1) observation: students use much plants knowledge learning from checklist to observe, and they do know the points of observation to use these ways on the plants they observe. So digital cameras help students to identify the related knowledge.(2) comparison and categorization: after the course, they know about the features and characteristics of the plants to categorize, the related plants knowledge are learning from checklist.(3) communication: students describe in the quantity that the word of description text of the characteristic than for deep into, right plant to describe also more to. At end of semester of announce to draw this story hour can also to present the contents clear of expression then the student also have the progress on the ability of expression of the word of text and vernacular speech.
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康秋郎. "An Action Research of Finding Affecting Factors to Improve the Performance of Fifth and Sixth Graders’Group Jump Rope—Applying High Speed Cameras and Motion Capture." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/2gnzuj.
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碩士<br>建國科技大學<br>數位媒體設計系暨媒體與遊戲設計研究所<br>105<br>After interviewing 19 teachers of 5th and 6th graders, the researcher knew that the biggest challenge for them is insufficiency of professionalism. That is, teachers did not know how to carry out the training. It was the researcher’s hope that through this research, factors that affected the performance of Group Jump Rope were to be found, which could be used as references for teachers who are interested in Group Jump Rope, and also help the promotion of Group Jump Rope in schools.
The main purposes of this research were to find out the performance affecting factors that come from rope turners; to find out the performance affecting factors that come from rope jumpers; to find out other performance affecting factors; and to explore what students had gained and been inspired through the process of practicing Group Jump Rope. The Action Research was adopted. Eighteen students of 6th graders from a class of an elementary school in Changhua City, the home room teacher of the class, a PE teacher and a swimming coach of the class took part in this research for one semester. The researcher studied related papers, visited experts of Group Jump Rope, and applied Motion Capture and High Speed Cameras to aid the filming of training processes, and to proceed with analyzing comparison. By continuously teaching and collecting feedbacks to carry on relevant Action Researches, conclusions of this research were reached.
Findings of this reseach are as follows: 1. Performance affecting factors that come from rope turners: rope turning frequency by rope turners, rope turning radius by rope turners, the ways how rope turners grip the rope, the ways how rope turners stand, the relation between the two rope turners, and the distance between the two rope turners. 2. Performance affecting factors that come from rope jumpers: the ways of jumping, and stability of rope jumpers. 3. Other factors that affect the performance of Group Jump Rope: texture of the rope, layout configuration of the group, outfits, appearance, and equipment, and mental preparation of the players. 4. The things which students had gained and been inspired through the process of practicing Group Jump Rope: understanding the importance of unity and cooperation, better concentration on doing things, better concentration on school learning, and good comprehension of the essence of being persistent and not giving up.
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Cheng, Shou-Yan, and 鄭守延. "Camera Calibration System Research." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/06535853699349727561.
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碩士<br>南開科技大學<br>電機與資訊工程研究所<br>98<br>Common calibration methods are divided into internal calibration and external calibration, in order to obtain all the camera parameters, used image distortion reduction, robotic arm applications, measuring distance and so on.
The main research goal of this paper is to establish a simple camera calibration system, calibration procedure easier to use. Users often have to prepare a general calibration model calibration, waving in front of the camera, the camera calibration for the high altitude in this way is not appropriate to connect this research to establish automatic correction mechanism can simplify complex procedures, users will only The modules placed in front of the camera, the camera can be connected through the computer's internal and external parameters obtained. By calibrating the two cameras, internal and external parameters matrix can know that the camera's internal geometry and spatial relationship to the location.
After the calibration parameters stored in the computer built-in database, in addition to internal and external parameters of the output matrix, the output of other correction method can also be the parameter matrix, users can easily edit using mathematical analysis software to read.
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WANG, MIN-GXIAN, and 王銘賢. "Research On 5G Microwave Camera Application." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/e6z8ty.
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碩士<br>中華科技大學<br>機電光工程研究所碩士班<br>107<br>In recent years, disaster prevention monitoring multi-aperture radar imagery, vehicle auxiliary radar system, and gradually introduced into the general commercial market, most of the current related product devices are in medium and large-scale land-based radar, and most of the major parts are provided by foreign manufacturers. The lack of funds for the governments private institutions has led us to develop innovative ideas.
With traditional land-based radar, the cost of equipment for monitoring environmental impact is high, and the domestic market is small, and high-order image high-level images are costly. With environmental monitoring and vehicle auxiliary systems, it is becoming more and more important, and the domestic integration technology is complete. Therefore, the purpose of this project is to develop a new miniature, microwave antenna device, which is integrated into the camera structure to meet the cost reduction and achieve the most. Optimized microwave imaging device.
The purpose of this project is to innovate miniaturized antennas, develop microwave imaging equipment, and solve the problems of high cost of land-based radar equipment and application in the domestic market. It is hoped that through the existing research and development energy of the academic community, the company will provide short-term technical guidance to help the industry eliminate the technical obstacles of urgency, reduce product development costs, and enhance added value and product competitiveness.
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Chen, Shih-An, and 陳士安. "Digital SLR Camera purchase decision Factors Research." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/15980880123297730023.
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碩士<br>華梵大學<br>工業設計學系碩士班<br>102<br>Throughout the past few years’ technology has improved within a rapid speed, it boosted up the amount of consumer electronics in a short amount of time, with the upsurge of the consumer electronics the Digital Single Lens Reflex Camera which is also known as the DSLR has already started to move forward steadily. However, if the company could understand the needs of different level groups required towards the product, with a completely new design, and a combination of different functions in order to create a product that is close to consumers need it would let them look forward to the final product. As a result, it would lead to a faster and useful market to create a product niche and gain more profit from the vast technology market.
This research was performed by specialists interviewing and having consumers answer the survey on what consumer’s strategic decisions do they have on buying the DSLR. Which includes what effects the consumers while they are buying the DSLR, and which part of the product satisfies them the most. First let’s analyze the DSLR in the consumer market today, yet from a consumer’s satisfaction and the markets fixed theory to determine how many the consumers acknowledge about the product. At the same time, also analyze how the attribute and consumer’s characteristic affects the policy. Furthermore, choose an important aspect to start a segment in the market, and then analyze the variables with different factors divided into segments, in order to discuss the strategic policy of different factors of one another is the main difference. While understanding the markets goal of the consumer’s strategic policy factor, by way of analyzing the total, variance inflation factor, PCA (Principle Component Analysis) and MDS (Minimum Discernible Signal) to resolve the investigation research. Expectations could provide dealers while selling DSLR to declare effect sales. Here below is the overall result of the research:
1. The average consumer’s considerations are the following: the function of taking pictures, the price, and the service after the product is sold out and the product’s standards.
2. Beginner’s considerations are the following: the price, the design of the product, and the service after the product is sold out and the image of the trademark.
3. Amateur’s considerations are the following: the function of taking pictures, the price and operation of the product.
4. Professional’s considerations are the following: the function of taking pictures, the price, the profession of the lens, and the operations of the product.
5. The DSLR is the most common digital single lens reflex camera for photographers that take pictures of both sexes.
6. CANON and NIKON two of the most well-known landmarks have the most comparisons between consumers.
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Yan, Chin-Hsien, and 顏欽賢. "THE RESEARCH OF FALL DETECTION BY DEPTH CAMERA." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/25038998937168589780.
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碩士<br>大同大學<br>資訊工程學系(所)<br>101<br>Home safety for the elderly is an important issue in current society, many elderly people living alone and not have all day daycare of their loved ones. The fall event occurred in home environment, or the condition of people cannot help themselves and first aid. At this time, home security detection equipment can come in handy, the system will detect falls, track personnel dynamically, and report back to the nursing staff or relatives come to the rescue in a timely manner, this system can help solve the security problems of the elderly people living alone at home.Fall detection system can detect fall and report people`s action. Numerous academic studies for people who wear sensors such as accelerometers, gyroscopes, level meter, heart rate monitor, Electromyography signals (EMG) measurement system, using floor induction or general color captured by camera to catch body contours for fall posture detect.The purpose of study which use depth camera to track the human body and find the body 20 "3D coordinate" of joint points, and made correction tools of camera coordinate turn into world coordinate to produce the world axis, next, we let 20 camera coordinate of skeleton points turn into world coordinate of skeleton points.We use PCA (principal component analysis) to find the direction of body and the body's spindle angle of floor as fall characteristics. It can reduce the wear sensor discomfort and cost of instrument for the elderly to use. It does not affect the user's home habits, so that users can easy to use this device for home security of protection.The depth camera which in low light environment can trace human body, and can be used in any environment at home, next, to improve the accuracy and efficiency of the system identification. The experimental results of the system identification fall detection can achieve 98.86% accuracy rate.
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Lo, Tsui, and 羅萃. "THE RESEARCH OF COMPUTER INTERFACE WITH CAMERA MOUSE." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/6nazaq.
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碩士<br>國立臺北科技大學<br>創新設計研究所<br>101<br>This thesis is to research using individual facial feature characteristic registration method to control virtual keyboard as computer interface device. The difference with other studies is that this research utilizes virtual control buttons of the computer interface to determine the specific size differences. And to study and designed by the performance of relative angle and its location of the initial setup program. The key’s size and utilization are crucial when a computer is in a confined space. While other studies focuses on its different functions, to thoroughly explore the correlation of key size and effectiveness. For the limbed and physical inconvenience user groups, the result has important significance.
"Camera Mouse" , which is a facial feature tracking software , was developed by the Boston University in 2007 as an alternative interface to replace mouse device. This study used "Camera Mouse" as verification reference device. There are 105 testers, after pre-defined two-stage experiments with repeated verifications, the optimal result for virtual keyboard ideal size is 30 * 30 mm. This size is not the maximum size within the experiment, which also proved that not larger the size, the better the performance. Expects to be able to use research results to improve on other facial features tracking system interface. Would like to provide greater convenience for specific user groups with this optimized keyboard size result research.
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Chen, Chia-Wei, and 陳佳偉. "Applications and Research of Camera based Visible Light Communication." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/b786xv.
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碩士<br>國立交通大學<br>光電工程研究所<br>105<br>As wireless communication is becoming more and more important in our daily lives, the traditional radio-frequency (RF) communication spectrum is nearly occupied. And the light emitting diode (LED) is replacing the traditional lighting sources in now days. For these two reason, visible light communication (VLC) is the proper solution.Besides, the mobile phone embedded with complementary-metal-oxide-semiconductor (CMOS) camera become common. It is more easy to get camera than photodiode(PD) as receiver.
In this thesis, we proposed and demonstrated different techniques to enhance the performance of VLC. In Chapter 2, we introduce using the rolling-shutter effect of the mobile-phone camera for the VLC. We also show how to demodulate and compare
different thresholding schemes for defining the logics of the rolling shutter pattern obtained by the mobile phone camera. In Chapter 3, in order to increase transmission data rate, we propose a polarization multiplexing visible light communication system using camera as receiver. In Chapter 4, we implement a real-time communication system by using APP on mobile phone. And we discuss for the experiment result. Finally, conclusion and future works are presented in.
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Chu, Che Yu, and 褚哲宇. "Research on Calibration and Object Tracking of Multi-Camera System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/82863838785752771138.
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碩士<br>長庚大學<br>醫療機電工程研究所<br>97<br>While we were using the traditional stereo-camera tracking system, the object could been easily occluded or out of the field of the camera view. The purpose of this research is to develop a multi-camera system, which can apply to surgical navigation system to tracking object. This research is use two-dimension calibrated method to calibrating the multi-camera system, and set all the camera coordinate system to correspond to one world coordinate system. The research is use the LED light ball to be the marker. The multi-camera system is use four cameras to get different field of view, and that will get more information than only two cameras. Then design the program which can calculate the weight of each camera system and choose the best one to continuing tracking. The system is improve the computer efficiency and the robust of the object tracking.
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TSHI, YI-MING, and 蔡一銘. "The Research on the Police Use the Body Worn Camera." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5xdh4s.
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碩士<br>中央警察大學<br>警察政策研究所<br>106<br>Abstract According to the analysis of historical trajectories, the police used to collect evidence only on specific occasions and circumstances, and the evidence was obtained by a legally authorized person, who used a hand-held camera or recording device to collect evidence at a certain point or at a specific location. Under the circumstances, it is common for relatives or other people to see at a glance that police officers are conducting full-range recordings of video recordings. However, with the rise of the people’s self-awareness, police officers often face public suspicions about law enforcement and police personnel. In order to reduce public suspicions and increase the credibility of law enforcement, police officers currently prefer to use Body Worn Cameras(BWC) to collect evidence. To analyze and discuss the role of portable audio-visual equipment that exerts great influence on law enforcement.When the police officers assume administrative functions, they actively take the initiative for the benefit of the people. As long as they do not violate the law, they can do so. But when assisting in the execution of judicial duties, It must also meet the requirements of mandatory statutory and writs principles. The use of BWC by the police is a disguised form of data collection. With data collection, as long as the personal video recording device is accessed through the M-Police(police mobile computer), further personal data can be obtained. The people’s rights and interests are seriously affected. Therefore, we must clarify the use of the device. What is the legal nature of the BWC？In addition, in view of the close relationship between police duty behavior and public interest, the police officers are currently on duty to wear BWC. The content of the video footage collected by the police officers has at least the following three functions:1. Due process2. Police Security3. Improve the effectiveness of police officers on duty and public satisfactionHowever, there are many advantages to using BWC, it is undeniable that police officers use BWC to record what they have seen and heard at any time while on duty, and may also infringe on human rights, especially the right to privacy. How to protect the rights of the people while use BWC is worthy .The content of this article is divided into six chapters.Chapter 1： IntroductionThis chapter explains the research background and motivation of this article, the research purpose and scope, and explains the research methods that may be used and the restrictions that may be encountered.Chapter 2: Discussion on the Basic Rights involved in the Use of BWCThis chapter discusses the background of the use of BWC, explains the relevant issues that may be involved in using BWC, and discusses the legal nature and basic principles of using BWC, and finally explains the use of BWC and basics Relationship of powerChapter 3: Practical analysis of the use of BWCs and judicial practiceThis chapter focuses on the analysis of the current state of the practice of using BWCs by police officers. It also discusses the evidentiary power and evidentiary power of the police in using evidence from BWC in the judicial practice.Chapter 4: Comparison of Other Law Enforcement Officers and Foreign Legal SystemsThe purpose of this chapter is to understand whether the other types of law enforcement officers who executive duties use or not in BWC. In addition, it compares the current problems encountered by foreign police using BWC to assist law enforcement, thereby providing an analysis of current or future problems that may be encountered in our country.Chapter 5: Review and Discussion of BWCMainly for the current domestic use of BWC, the possible problems found, such as the acquisition of the device, the timing of the use, the relevant procedures, etc., are reviewed, and the possible future improvement direction was proposed.Chapter 6: Findings and SuggestionsThrough the above-mentioned studies, it is hoped that the advantages and disadvantages of using BWC by police officers can be analyzed and proposed. Looking forward to help the police work.Keyword: Body Worn Cameras、micro camera、recorder、privacy, due process of law.
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Hung, Tsao-ting, and 洪肇廷. "The research and design of the interface of camera smart-phone." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/34955122700165479878.
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碩士<br>大同大學<br>工業設計學系(所)<br>100<br>At the present time, the mobile phone has already become an indispensable product. Touch panel also has become the mainstream of the smart-phone control interface. In this study, the purpose is to propose a better configuration of camera smart-phone for physically-touching control to take picture. In accordance with the reason to use, operation mode, and the key function of the camera smart-phone, there are 70 survey subjects designed in a questionnaire. The reasons for using the camera smart-phone are recording life anywhere, sharing photos quickly via the internet environment, and carry camera and mobile phone at the same time. The ideal overall size is approximately 115x59x8.5 mm with a 4.3-inch screen. The repeated measure of ANOVA is used to analyze whether the satisfaction of phone and camera function operation, and the extent necessity of phone and camera function keys are meet. According to the ANOVA analysis with regard to the questionnaire, it is shown that the touch operation is preferred. Within the functions of the smart-phone, physical control to adjust the volume and take a picture is preferred. The important keys are power, switching camera or video recording mode, flash mode, shutter, and macro mode. Chi-square analysis is used to analyze the tendency of phone and camera function keys, it is demonstrated that touch buttons for camera function is preferable.
In research of the operation and button configuration, firstly the button configuration recommendations are suggested from 6 professional photographers. Expertise configuration recommendations are then verified by 36 normal users. The verification method used entity models and operating concept videos. At last, the best model is chosen to modify and design the configuration.
Finally, this study’s design interface is compared with the “S” brand’s by objective tasks and subjective satisfaction questionnaire. The objective tasks contained “unlocking the phone to taking picture”, “adjusting some camera functions before taking picture”, and “having a phone call at taking picture”. All objective recorded the number of errors and operating time. The subjective satisfaction questionnaire used System usability scale (SUS) and NASA-TLX. The operating time and errors analyzed by paired-sample t test. The results showed the study’s design interface was shorter than “S brand” at the time of the task 3; the study’s design interface was less than “S brand” at the errors of the task 2&3. The subjective satisfaction questionnaire analyzed by paired-sample t-test. The results were shown the study’s design interface was better than “S brand” at SUS and NASA-TLX.
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Chen, Hsueh-Tzu, and 陳雪子. "Preliminary Application of a Pan/Tilt Camera in Coastal Image Research." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/47920370815223103246.
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碩士<br>國立成功大學<br>系統及船舶機電工程學系碩博士班<br>96<br>The purpose of this study is to develop an image analysis system for coastal observation based on the pan/tilt camera. The pan/tilt camera instead of a number of cameras is used to capture multi-directional images for coastal observation, data collection, real-time monitoring and observation mode alteration. In this study, the field site includes the artificial headland and artificial beach nourishment of Shi-Hzuwan Bay. First, the coastal images obtained by pan/tilt camera are mosaicked into a coastal panorama by commercial software. Then the coastal characteristics of Shi-Hzuwan Bay (e.g., sand siltation, drift, and wave shoaling) are obtained by image processing (e.g., coordinate transformation and edge detection).. In this thesis, the coastal images of Shi-Hzuwan Bay are analyzed based on this low-cost coastal image observation system in which the behavior of the beach line can be traced in a long time.
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Peng, Chau-Sheng, and 彭朝生. "Research and Design of Lithium Battery Spring in Digital Still Camera." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/72302174695144654070.
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碩士<br>國立交通大學<br>工學院精密與自動化工程學程<br>102<br>Now 3C product’s appearance has become the trend which has more and more light, thin, small size and fine texture. Digital cameras have also been affected this tendency which size was done by smaller and thinner than before ones. But these compact designs have also compressed the internal space of products. This thesis studies how lithium battery spring do optimization design and find relative parameters that affect design and improve it while digital camera is constrained from its internal space. Experiments use CAE software Pro/E to create different 3D spring models, then use ANSYS finite element analysis method to simulate the stress and strain of these models. To tabulate these stress and make optimal stress analysis by Matlab program. From the experimental results that we find the length of the spring had much influenced on the stress of the one. The thesis results can be used as design reference while designer do similar mechanical design.
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Yu, Feng-wei, and 余峰維. "The Research of Market Structue, Conduct and Performance in Digital Camera Industry." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/23630595213979838999.
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碩士<br>國立中央大學<br>產業經濟研究所碩士在職專班<br>100<br>In this text, mainly used the SCP analysis framework and discussed the development of digital camera industry. Also, the paper discussed the development, competition cooperation, and business development strategies between the Japanese Brand Vendor and the Taiwan OEM (Original Equipment Manufactures). In the study, the digital camera has been competed for many years in the consumer DSC market now, so it tends to be saturated. Therefore, the brand vendor added more features and expected the differentiation to bring the greatest requirement in the market. In recent years, the growth rate of SLR digital camera has substantially improved; moreover, the lightweight products bring the convenience that it can help the product more quickly accepted by the market. Besides, the class SLR digital camera appeared in the market in the recent two years, it canceled the function of reflector in the SLR digital camera. Furthermore, the class SLR digital camera reduces the product volume substantially, and uses the design of interchangeable lens. In addition, the price is cheaper than the SLR digital camera. Consequently, the class SLR digital camera receives a great acclaim in the market, and it has gradually become the new niche product in the market. Due to the market demand increasing, every brand vendor has invested in research progressively, and expects to create the new climax.
In the case study, the Japanese Brand Vendor directs to import the exploration of Cell Production System. Moreover, the case company aims to import the“Cell Production System”to compare the effective between before and after in 1998. Try to explore the Cell Production System advantages and specific gene rant benefit analysis.
The Taiwan factory is primarily by OEM for a long term. Through the effective cost control and stable quality, the Japanese Brand Vendor which entrusts the rate of OEM is rising a year by year. The OEM rate of Taiwan factory is as high as eight percent; the Taiwan factory has reached a considerable level visibly in the scale of economies and cost control. However, responding to the global competition, the Taiwan factory should actively seek new niche products – the orders of class SLR digital camera. Besides, by the case- Cannon into“Cell Production System”mode which produces the benefits. Furthermore, the Taiwan factory can analyze to determine how to strengthen their control ability, reduce operating costs; it should also be imported Cell Production System in order to obtain the greatest business competitiveness.
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Chih-Chi, Yao, and 姚之棋. "Research on the Purchasing Behavior of University Students of the Camera Phone." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/94284685465830706249.
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碩士<br>輔仁大學<br>應用統計學研究所<br>93<br>Recently the market share of the camera phone is increasing. Then it lets the photographing technology to hasten maturely. Along with 3G era approaching, it is the tendency that the camera phone is a highly conform peripheral product. The university students are easier obtaining and accepting the popular information and their purchasing powers can’t be ignored. Therefore, it needs the research in view of the university students. The results of this thesis can provide manufactures to make marketing strategy.
The results shows there are forty percents students have the camera phone, and thirty percents of the students have the plan to purchase in the near future. The students are potential purchasers for the camera phone. The popularity is the main reason to let students to buy camera phones. They got information from the Internet and the television advertisement. The brand image affects their purchasing decision. Students care about camera phone’s appearance, the full color display of the screen and the storage capacity of the messages. The owners satisfied the photographing operation, but unsatisfied to the convenience of transmitting pictures and the pixel.
The students who do not have a camera phone but they would like to buy camera phone for taking photos. Television is the main resource of camera phone’s information. The brand image will affect their purchasing decision. They take care about the camera phone’s appearance, the convenience of the carrying, the deadline of the product warranty and the post-sale service.
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Lee, Chih-Ching, and 李智景. "Difference between the Natural Illuminant and Artificial Illuminant for Camera Idiosyncrasy Research." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/89101124750478653535.
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碩士<br>大葉大學<br>設計研究所<br>96<br>Digital photography technology has become the important media of communication between the visual plane works and appreciators. And it is widely used in the current print ads and design, photographic images of the imaging results all the more importance. Light to the photographic image occupies a very significant impact, through the screen in different brightness, contrast and color temperature of light… multiple factors, so that images can be filled with many changes in photography and creativity, coupled with a narrative of the arrangements and modeling changes in the body. It will give many people who appreciate the visual impact and imagination.
This study will be in the same place with the natural and artificial light source to the main light to shoot portraits of models, under observation in the light of two shooting by the plans of the difference. Then, the surface with the design of the questionnaire will be surveyed as a result of the difference, when the next photographer in portrait photography can be taken in accordance with the demand to choose the right lighting way. The conclusions are as follows:
1. Natural light of plans by shooting closes to the surface effect is more like the human observation by the vision scene, and makes the screen will be more emotional results.2. Artificial radiation sources have a clear direction, not only diffuse phenomenon can be reduced to a minimum, but also by controlling the source of strength and perspective of the shooting to highlight the theme. And the light not also means a greater use of space, but is more rational control optical characteristics.
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CHEN, MING-WEI, and 陳明韋. "Research on Classification and Application of Smart Camera and Industrial Robotic Arm." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/phuckc.
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碩士<br>聖約翰科技大學<br>資訊工程系碩士班<br>105<br>After the proposed industrial 4.0 in Germany, we are pushing for industrial reform so that factory equipment can be intelligent. In order to achieve the wisdom of the device, this paper integrates a six-axis robot arm and a smart camera to complete a set of items classification system. The proposed system can provide production lines for intelligent classification of goods. In this system, we can use the camera to identify the location of items, access the angle of the placement, and get the types of items. The robotic arm classifies the items through the information identified by the intelligent camera. Items for good will be placed in the specified position and placed in front. If the item is defective, it will be placed in the area of bad product. In this system, we also joined the message notification function. When items are gripped or filled, and the connection of the robot arm and the camera is abnormal, the proposed system will notify the operator by lights.
In this paper, we succeeded in integrating smart cameras and six-axis robots. This system can be used in the factory's intelligent production line. And the manpower for product testing and classification work can be replaced.
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Song, Yan-Bin, and 宋焱檳. "Research on Near-infrared-based Ego-positioning Algorithm with Wide-angle Camera." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/gn6gdf.
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碩士<br>國立臺灣大學<br>資訊網路與多媒體研究所<br>106<br>Simultaneous Localization and Mapping(SLAM)is a generic method used to solve robot ego-positioning problems. At present, popular SLAM methods are mainly divided into direct methods and feature-based methods. The direct method is more sensitive to brightness information, and the feature-based method has been demonstrated more tolerance toward changes in brightness. In nighttime environment, information from normal camera become difficult to identify. Therefore, we propose to use near-infrared (NIR) cameras for ego-positioning of night robots. Images obtained by NIR light have different light intensities due to their distance from the infrared light sources, so SLAM is not suitable for direct methods. We used a feature-based method which is tolerant to light intensities to ego-positioning. This method combines ego-positioning and NIR with multi-wide-angle NIR cameras to not only solve the problem of capturing the feature points under low-light conditions, but also obtain more accurate ego-positioning results. This allows the robot to do SLAM even at night in low illumination indoor scenario. Therefore, this system has more robust results in different challenging situations.
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Liao, Hong-yi, and 廖紘億. "The Research for Automatic Camera Calibration and Silhouette Extraction from 2D images." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/74714312553542104808.
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碩士<br>國立中央大學<br>機械工程學系<br>103<br>This study develops a process of automatic camera calibration and extracts silhouette from 2D images. First, this study introduced camera calibration applications, and then introduced camera calibration methods. Finally, this study introduced theory of camera model and silhouette extraction method from 2D images.
This study, based on 2D camera calibration, develops a process of different type camera calibration pattern, including image process, regions of interest and decode calibration pattern. Performing re-projection method developed in this study by silhouette from 2D images and camera calibration result, this study are able to reappear the picture taking parameters and translate pixel unit to physical unit.
At last, this study will demonstrate three examples, using the development of process of automatic camera calibration and extract silhouette from 2D images and re-projection method. They are used to verify the accuracy of this study.
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CHEN, HSIN-YEH, and 陳信曄. "Research on Effect of Analysis and Purchasing for Digital Single-lens Camera." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/693c55.
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碩士<br>育達科技大學<br>資訊管理所<br>107<br>The tourist atmosphere of the humans is becoming more and more popular, driving famous scenic spots, special foods and local culture, forming a snap-and-shoot style, it rises of social networking sites to share pictures instantly. In general, when the function of the digital camera and the camera embedded on mobile phone are not satisfied, the characteristics of the monocular camera are used to improve the quality of the photo. When user has more experience on the monocular camera, they found the lenses are various types. The photo quality depends on the characteristics of lens and the type of lens. It will affect the subsequent image editing margin. The lens can be classified into fixed focal length and variable focal length. The aperture of variable focal length can be divided into constant and non-constant. It also classified to wide lens, standard lens and telescope lens and special lenses such as fisheye lens, shifting mirror, etc. Due to the variety of lenses, it causes user confusion when buying a lens.
In this study, the Delphi method expert questionnaire is used to survey photographers to establish an expert questionnaire basis and a consensus. The survey respondents are professional photographers and senior amateur. After collecting statistics data, refer to subjective and objective factors, the Analytic Hierarchical Process (AHP) was adopted to find the relationship between consistency and weight. To decompose them at different levels, and compare the importance and value between each other through quantitative judgments to guide the lens purchasing key factor.
The results of this study, there are three major criteria; the most significant issue is “Topic”, followed by "category and aperture" and the last is "price and additional functions". "Portrait photography", "landscape photography", "dynamic photography", "fixed focal length" and "OEM lens" are the most significant factors of twelve secondary criteria. The value of this study is providing a reference for the purchase a lens for advanced monocular camera users
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Wu, Guan-Hui, and 吳冠輝. "The Digital Forensic Research by Using Image features to Identify Camera Sources." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/68907939753743979115.
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碩士<br>國立交通大學<br>資訊管理研究所<br>93<br>In this digital era, all kinds of media data are recorded and presented digitally. The popularity of digital devices also brings up the needs for new digital data applications, and digital forensics is one of them.
This research is to analyze the relationship between digital cameras and images produced by them. First, digital image processing technology is applied with data mining method to get images’ features. Later, these features were trained and classified to identify the images’ original camera sources. Second, the identification features were further analyzed and improvements, based on the analyses, were proposed to enhance the identification precision rate.
In addition, camera manufacturers have various designs of image formation process for digital camera. By analyzing the distinctive feature of the process, the original camera source of digital image will be identified. This research focused on comparing and contrasting not only cameras of different manufacturers, but also those of the same manufacturer and similar models. By doing so, the potential limits of this identification method will be defined by the research results.
Finally, a conclusion based on the research findings is presented, and suggestions for future and further research are provided as well.
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Tsai, Ming Jen, and 蔡銘仁. "The Research to Measure Human Joint Three-Dimensional Motion by Single Camera." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/92255474560114051525.
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yan, Li jhih, and 李致延. "Research of Camera Game for Children’s Cognitive Development and Imaginary Companions Design." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/04839150504765597877.
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碩士<br>南台科技大學<br>多媒體與電腦娛樂科學研究所<br>96<br>In the field of preschool education, the cognition development and imaginary companions of children have been discussed extensively, and the best approach to the cognition development is through games. At this research we understand the importance of games for children’s development, and according to literature, those games could be parted to four types：Functional play、Constructive play、Symbolic play、Game with rules.
At this research, we used Microsoft’s VFW to create a camera system and completed two camera games. This camera system caught what the camera took to combine image recognition technology to work camera game. In this camera game ,we also combine functions of imaginary companions and qualities of four children’s game to help children to have good development of bodily value、longan value、moral value、personality value、social value.
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Cai, Hongyuan. "Video anatomy : spatial-temporal video profile." Thesis, 2014. http://hdl.handle.net/1805/4832.
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Indiana University-Purdue University Indianapolis (IUPUI)<br>A massive amount of videos are uploaded on video websites, smooth video browsing, editing, retrieval, and summarization are demanded. Most of the videos employ several types of camera operations for expanding field of view, emphasizing events, and expressing cinematic effect. To digest heterogeneous videos in video websites and databases, video clips are profiled to 2D image scroll containing both spatial and temporal information for video preview. The video profile is visually continuous, compact, scalable, and indexing to each frame. This work analyzes the camera kinematics including zoom, translation, and rotation, and categorize camera actions as their combinations. An automatic video summarization framework is proposed and developed. After conventional video clip segmentation and video segmentation for smooth camera operations, the global flow field under all camera actions has been investigated for profiling various types of video. A new algorithm has been designed to extract the major flow direction and convergence factor using condensed images. Then this work proposes a uniform scheme to segment video clips and sections, sample video volume across the major flow, compute flow convergence factor, in order to obtain an intrinsic scene space less influenced by the camera ego-motion. The motion blur technique has also been used to render dynamic targets in the profile. The resulting profile of video can be displayed in a video track to guide the access to video frames, help video editing, and facilitate the applications such as surveillance, visual archiving of environment, video retrieval, and online video preview.
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"An efficient algorithm for total variation regularization with applications to the single pixel camera and compressive sensing." Thesis, 2010. http://hdl.handle.net/1911/62229.
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In this thesis, I propose and study an efficient algorithm for solving a class of compressive sensing problems with total variation regularization. This research is motivated by the need for efficient solvers capable of restoring images to a high quality captured by the single pixel camera developed in the ECE department of Rice University. Based on the ideas of the augmented Lagrangian method and alternating minimization to solve subproblems, I develop an efficient and robust algorithm called TVAL3. TVAL3 is compared favorably with other widely used algorithms in terms of reconstruction speed and quality. Convincing numerical results are presented to show that TVAL3 is suitable for the single pixel camera as well as many other applications.