Academic literature on the topic 'Vision 3000'
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Journal articles on the topic "Vision 3000"
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Antonuk, Vladimir D., Olga I. Kuranova, and Tat‘yana S. Kuznetsova. "Assessment of blood flow parameters of the limbal area using an angioregime optical coherence tomograph in patients with myopia and myopic astigmatism who underwent excimer laser vision correction." Fyodorov journal of ophthalmic surgery, no. 1 (March 15, 2022): 26–32. http://dx.doi.org/10.25276/0235-4160-2022-1-26-32.
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Purpose. To assess the state of blood flow in the limbal area in patients with myopia and myopic astigmatism before and after excimer laser vision correction using the Nidek RS-3000 AngioScan optical coherence tomograph. Material and methods. A total of 22 patients aged 18 to 37 with different degrees of myopia and myopic astigmatism who underwent excimer laser vision correction were examined. Additionally, the blood flow of the limbal area was studied in the preoperative and early postoperative periods using the Nidek RS-3000 AngioScan optical coherence tomograph using a module for scanning the anterior segment of the eye. Results. One hour after excimer laser vision correction, there is a decrease in blood flow of the limbal area in all 4 analyzed sectors (upper, lower, temporal, nasal), after 1 day there is an increase in blood flow indicators, tending to preoperative values. We were unable to identify the dependence of the degree of blood flow on the method of formation of the corneal flap. Conclusion. Using OCT angioregime it is possible to assess the condition of limb blood flow. In the first hour after laser vision correction blood flow parameters change in all 4 studied sectors, with a tendency to decrease, and recover to preoperative values 1 day after the surgery. Key words: optical coherent angiography of the limbal area, excimer laser vision correction, femtolaser vision correction, myopia, myopic astigmatism.
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Glucroft, Brian I. "Software: SPSS for Windows SPSS Inc. 233 S. Wacker Dr., 11th Floor Chicago, IL 60606 (312) 651-3000 www.spss.com." Ergonomics in Design: The Quarterly of Human Factors Applications 9, no. 4 (October 2001): 27–28. http://dx.doi.org/10.1177/106480460100900407.
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Woolford, Barbara J. "Human Factors for NASA's Space Exploration Vision the View from Inside." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 49, no. 23 (September 2005): 2012–13. http://dx.doi.org/10.1177/154193120504902302.
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People are the critical element in human space exploration. Future missions will be designed to optimize uniquely human capabilities: creativity, ingenuity, intuition, learning, problem-solving, flexibility and determination. Human factors' role is to extend human capability with hardware and software; to create environments that maintain mental, emotional and physical fitness; to select and train crews capable of thriving in risky, long-duration missions; and to increase astronaut safety and reduce mission risk. This symposium will explore the research and technology development in NASA's Human-System Integration program. First, we will describe the missions that lead up the manned exploration of Mars. Detailed technical descriptions of NASA's current research and gaps will address physical, cognitive, and behavioral health and performance issues. Finally, we will describe the reinvention of NASA-STD-3000, Human-System Integration Standards, the medium by which research results are imposed on the design and construction of spacecraft, software, and operations concepts.
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Srivastava, Satyam, Sachin Boyat, and Shashikant Sadistap. "A Novel Vision Sensing System for Tomato Quality Detection." International Journal of Food Science 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/184894.
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Producing tomato is a daunting task as the crop of tomato is exposed to attacks from various microorganisms. The symptoms of the attacks are usually changed in color, bacterial spots, special kind of specks, and sunken areas with concentric rings having different colors on the tomato outer surface. This paper addresses a vision sensing based system for tomato quality inspection. A novel approach has been developed for tomato fruit detection and disease detection. Developed system consists of USB based camera module having 12.0 megapixel interfaced with ARM-9 processor. Zigbee module has been interfaced with developed system for wireless transmission from host system to PC based server for further processing. Algorithm development consists of three major steps, preprocessing steps like noise rejection, segmentation and scaling, classification and recognition, and automatic disease detection and classification. Tomato samples have been collected from local market and data acquisition has been performed for data base preparation and various processing steps. Developed system can detect as well as classify the various diseases in tomato samples. Various pattern recognition and soft computing techniques have been implemented for data analysis as well as different parameters prediction like shelf life of the tomato, quality index based on disease detection and classification, freshness detection, maturity index detection, and different suggestions for detected diseases. Results are validated with aroma sensing technique using commercial Alpha Mos 3000 system. Accuracy has been calculated from extracted results, which is around 92%.
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Dong, Lili, Enzhong Zhao, Yang Chen, Ge Qin, and Wenhai Xu. "Impact of LED Color Temperatures on Perception Luminance in the Interior Zone of a Tunnel considering Fog Transmittance." Advances in Civil Engineering 2020 (April 24, 2020): 1–13. http://dx.doi.org/10.1155/2020/3971256.
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LEDs are widely applied in highways and tunnels for their long life, low light attenuation, and being environment friendly in recent years. The influence of correlated color temperature (CCT) of LED on lighting safety has attracted people’s attention as the demand increased. In this paper, a calculation model of perception luminance of human eye considering mesopic vision and fog concentration was proposed. The influence of different CCTs on perception luminance of human eye under different levels of fog concentration and luminance was calculated and analyzed. The CCT of LED employed in the interior zone of a tunnel was selected based on the highest perception luminance in mesopic vision. Seven kinds of LEDs with different CCTs (3000–6500K) were applied in the experimental system with adjustable fog concentrations. The results showed that the main factors affecting visual perception are luminance and fog concentration. Higher luminance or lower fog concentration provides drivers with higher perception luminance. In contrast, although CCT has a less effect on perception luminance, LEDs with higher CCT (about 6500K) can provide higher perception luminance considering fog in mesopic vision. This paper provides technical support for tunnel lighting and guaranteeing traffic safety.
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Sungheetha, Dr Akey, and Dr Rajesh Sharma R. "GTIKF- Gabor-Transform Incorporated K-Means and Fuzzy C Means Clustering for Edge Detection in CT and MRI." Journal of Soft Computing Paradigm 2, no. 2 (May 22, 2020): 111–19. http://dx.doi.org/10.36548/jscp.2020.2.004.
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The detection of edges is the one of the important stage in the application, associated with the machine vision, computer vision and the image processing. It is most commonly and highly preferred in the area were the extraction or the detection of the attribute are necessary. As the manual methods of diagnosis in the medical images acquired from the CT (computed tomography) and the MRI (magnetic resonance images) are very tedious and as well as time consuming, the paper puts forth the methodology to detect the edges in the CT and the MRI by employing Gabor Transform as well as the soft and the hard clustering. This proposed method is highly preferred among the image with dynamic variations. The technique used in the paper is evaluated using 4500 instance of the MRI and 3000 instance of CT. The results on the basis of the figure of merit (FOM) and Misclassification rate (MCR) are compared with other standard approaches and the performance was evinced.
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Song, Hyeonik, Jacob Evans, and Katherine Fu. "An exploration-based approach to computationally supported design-by-analogy using D3." Artificial Intelligence for Engineering Design, Analysis and Manufacturing 34, no. 4 (May 28, 2020): 444–57. http://dx.doi.org/10.1017/s0890060420000220.
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AbstractComputational support for design-by-analogy (DbA) is a growing field, as it aids the process for designers looking to draw inspiration from external sources by harnessing the power of data mining and data visualization. This study presents a unique exploration-based approach for the analogical retrieval process using a computational tool called VISION (Visual Interaction tool for Seeking Inspiration based On Nonnegative Matrix Factorization). Leveraging the U.S. patent database as a source of inspiration, VISION enables designers to visualize a patent repository and explore for analogical inspiration in a user-driven manner. To achieve this, we perform hierarchical Nonnegative Matrix Factorization to generate a clustered structure of patent data and employ D3.js to visualize the patent structure in a node-link network, in which user interaction capabilities are enabled for data exploration. In this study, we also analyze the effect of data size (ranging from 100 to 3000 patents) on two performance aspects of VISION – the clustering quality of topic modeling results and the frame rate of interactive data visualization. The findings show that the tool exhibits more randomized and inconsistent topic modeling results when the database size is too small. But, increasing the database size lowers the frame rate to the point that it could diminish designers’ ability to retrieve and recall information. The scope of the work here is to present the creation of the DbA visualization tool called VISION and to evaluate its data scale limitations in order to provide a basis for developing a visual interaction tool for the analogical retrieval process during DbA.
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VIZSY, MÁRIA, RÓBERT PÓNUSZ, MONIKA SÉLLEYNÉ GYURÓ, LUCA FANNI KAJOS, PÉTER TARDI, ISTVÁN ÁGOSTON, RITA JUHÁSZ, BÁLINT SZŐTS, and BÁLINT MOLICS. "CAUSES OF MIGRATION AND WORKING CONDITIONS ABROAD AMONG PHYIOTHERAPISTS." Studia Universitatis Babeş-Bolyai Educatio Artis Gymnasticae 66, no. 2 (June 30, 2021): 5–17. http://dx.doi.org/10.24193/subbeag.66(2).12.
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Introduction: The migration of health professionals severely affects the current number of physicians and professionals in a country. Aim: The aim of our work was to investigate the reasons for the departure of physiotherapists already working abroad, to learn the working conditions abroad, and to explore the conditions for returning home. Method: Our data were obtained by a self-edited, online questionnaire survey. The number of items in our sample was 112 (N = 112) physiotherapists working abroad. Our research was conducted between November 2018 and February 2019. Results: Results of the most influential factors of migration were as follows: 62.5% (70 people) had a lack of financial reward, 55.4% (62 people) had a sense of uncertainty about the future, 49.1% (55 people) did not trust the Hungarian health care organization. The monthly salary of professionals working abroad varied between 1001-2000 Euros in 38.4% (43 people), between 2001 and 3000 in 38.4% (43 people) and was over 3000 Euros in 23.2% (26 people). 76.8% (86 people) didn''t take a second job because they didn''t need it. Factors influencing return were the following: 1) in 69.6% (78 people) “more favorite financial conditions”, 2) in 51.8% (58 people) “better working conditions”, 3) in 42.9% (48 people) “a better organized health care system. Conclusion: Physiotherapists working abroad have left mainly due to a better quality of life, a more predictable vision and more favorite financial conditions, and a change in these conditions would encourage them to return home the most.
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Soliman, Sameh E., Cynthia VandenHoven, Leslie D. Mackeen, and Brenda L. Gallie. "Vision and visual potential for perifoveal retinoblastoma after optical coherence tomographic-guided sequential laser photocoagulation." British Journal of Ophthalmology 103, no. 6 (July 5, 2018): 753–60. http://dx.doi.org/10.1136/bjophthalmol-2018-312125.
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Background/aimsTo assess tumour control, vision and anatomical visual potential in eyes with perifoveal retinoblastoma treated by sequential photocoagulation from the antifoveal tumour edge inwards, avoiding treatment near the fovea. Patients were monitored for tumour control, foveal and perifoveal anatomy at each treatment session by optical coherence tomography (OCT) and treated for amblyopia when the other eye had better vision.MethodsEyes with perifoveal retinoblastoma treated between 1 January 2011 and 31 May 2017 with laser therapy after chemotherapy for juxtafoveal (fovea clear of tumour but <3000 µm from tumour edge) or foveolar retinoblastoma (tumour underlying fovea) were retrospectively reviewed for tumour control without recurrence, anatomical success (foveal pit preservation and/or restoration with ≥500 µm perifoveal retina free of tumour and scar) and functional success (acceptable (>0.1 decimal) or good (>0.3 decimal) visual acuity (VA)).ResultsTwenty-two eyes (14 juxtafoveal, 8 foveolar tumours) of 20 patients (19 bilateral, 1 familial and 11 females) were included. No juxtafoveal tumour had tumour recurrence, and 13/14 patients showed foveal pit preservation with ≥500 µm of perifoveal retina tumour free. Foveolar tumours had significant worse anatomical outcomes: failure to restore foveal pit or perifoveal retina (8/8, p=0.001) and tumour recurrences (5/8, p=0.001). Functional success with acceptable VA was achieved in 12/14 juxtafoveal and 5/8 foveal tumours eyes (p=0.01). Amblyopia therapy data were insufficient to evaluate impact on VA.ConclusionsAnatomical visual potential and functional vision were better in juxtafoveal than foveolar retinoblastoma treated with foveal-sparing laser photocoagulation guided by OCT. The role of amblyopia therapy requires a prospective study.
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Summers, Mindi M., Brian A. Couch, Jennifer K. Knight, Sara E. Brownell, Alison J. Crowe, Katharine Semsar, Christian D. Wright, and Michelle K. Smith. "EcoEvo-MAPS: An Ecology and Evolution Assessment for Introductory through Advanced Undergraduates." CBE—Life Sciences Education 17, no. 2 (June 2018): ar18. http://dx.doi.org/10.1187/cbe.17-02-0037.
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A new assessment tool, Ecology and Evolution–Measuring Achievement and Progression in Science or EcoEvo-MAPS, measures student thinking in ecology and evolution during an undergraduate course of study. EcoEvo-MAPS targets foundational concepts in ecology and evolution and uses a novel approach that asks students to evaluate a series of predictions, conclusions, or interpretations as likely or unlikely to be true given a specific scenario. We collected evidence of validity and reliability for EcoEvo-MAPS through an iterative process of faculty review, student interviews, and analyses of assessment data from more than 3000 students at 34 associate’s-, bachelor’s-, master’s-, and doctoral-granting institutions. The 63 likely/unlikely statements range in difficulty and target student understanding of key concepts aligned with the Vision and Change report. This assessment provides departments with a tool to measure student thinking at different time points in the curriculum and provides data that can be used to inform curricular and instructional modifications.
Dissertations / Theses on the topic "Vision 3000"
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Watts, Stella. "Plant-flower visitor interactions in the Sacred Valley of Peru." Thesis, University of Northampton, 2008. http://nectar.northampton.ac.uk/3000/.
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The structural organisation of species-rich plant-pollinator networks is important to understanding their ecology and evolution and is essential for making informed conservation and restoration decisions. This thesis reports on a study located at different altitudes in nine tributary valleys of the Sacred Valley, Vilcanota Highlands, Peru. The assemblages of flower visitors were described and the plant-flower visitor matrices were analysed and compared to those found from other montane systems. Additionally, the thesis also addressed how the European honeybee (Apis mellifera) fits into these communities. Previous studies have predicted that abundance, diversity, and importance of hymenopterans as pollinators decrease with increasing altitude, where they are replaced by Lepidoptera and Diptera. Contrary to other temperate montane areas, Hymenoptera were more diverse at higher elevations. Diptera was the most abundant functional group overall but did not significantly increase in abundance with altitude as predicted. Species richness of visited plants reached a maximum at the highest altitudes. Using ordination analysis, hummingbirds, honeybees, flies and beetles were identified as major functional groups of flower visitors with significantly different visitation profiles. Nestedness analysis revealed that the plant-flower visitor networks had a similar structure to other published networks, consisting of core groups of generalist plants and animals which interacted with one another and with specialised flower visitors and plants, respectively. The core species varied in identity between valleys, but were usually the species in greatest abundance, implying that the networks were abundance structured. In addition, 85% of the interactions were observed only in single valleys. This context specificity may have implications for the conservation of plant-pollinator interactions in the Sacred Valley. Comparisons of the pollinator efficiencies of honeybees, hummingbirds, native bees and moths to Duranta mandonii (Verbenaceae) demonstrated significant variation among flower visitors in rates of visitation, pollen removal ability and contribution to fruit set. This variation was not correlated: hummingbirds were by far the most frequent visitors but removed virtually no pollen and did not contribute to fruit set. Despite the taxonomic diversity of flower visitors, the main pollinators were large native bumblebees and honeybees. Results highlighted the importance of measuring efficiency components when documenting plant-pollinator interactions, and also demonstrated that visitation rates may give little insight into the relative importance of flower visitors. Overall, the study showed that Apis was the most generalist flower visitor and a dominant core species within networks. However, although Apis visited a relatively large proportion of the flora compared to native taxa, they only intensively utilised a small proportion of available plant species. No evidence was found from the surveys to suggest that honeybees used interference competition and displaced other species. It was suggested that because specialised rare species are frequently dependent on a core of generalist taxa honeybees may play an important role for the possibilities of rare species to persist. However, perhaps the greatest threat to biodiversity and the persistence of plant-flower visitor communities in the Sacred Valley is from the destruction and fragmentation of habitats and from facilitative interactions between native and alien plants, mediated through visitation from honeybees
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Yang, Changjiang. "Efficient evaluation of Gaussian sums with applications in vision and learning." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/3005.
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Thesis (Ph. D.) -- University of Maryland, College Park, 2005.Thesis research directed by: Computer Science. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Siddiqui, Abujawad Rafid. "A Vision and Differential Steering System for a Mobile Robot Platform." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3040.
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Context: Effective vision processing is an important study area for mobile robots which use vision to detect objects. The problem of detecting small sized coloured objects (e.g. Lego bricks) with no texture information can be solved using either colour or contours of the objects. The shape of such objects doesn‟t help much in detecting the objects due to the poor quality of the picture and small size of the object in the image. In such cases it is seen that the use of hybrid techniques can benefit the overall detection of objects, especially, combining keypoint based methods with the colour based techniques. Robotic motion also plays a vital role in the completion of autonomous tasks. Mobile robots have different configurations for locomotion. The most important system is differential steering because of its application in sensitive areas like military tanks and security robot platforms. The kinematic design of a robotic platform is usually based on the number of wheels and their movement. There can be several configurations of wheels designs, for example differential drives, car-like designs, omni-directional, and synchro drives. Differential drive systems use speed on individual channels to determine the combined speed and trajectory of the robot. Accurate movement of the robot is very important for correct completion of its activities. Objectives: A vision solution is developed that is capable of detecting small sized colour objects in the environment. This has also been compared with other shape detection techniques for performance evaluation. The effect of distance on detection is also investigated for the participating techniques. The precise motion of a four-wheel differential drive system is investigated. The target robot platform uses a differential drive steering system and the main focus of this study is accurate position and orientation control based upon sensor data. Methods: For object detection, a novel hybrid method „HistSURF‟ is proposed and is compared with other vision processing techniques. This method combines the results of colour histogram comparison and detection by the SURF algorithm. A solution for differential steering using a Gyro for the rotational speed measurement is compared with a solution using a speed model and control outputs without feedback (i.e. dead reckoning). Results: The results from the vision experiment rank the new proposed method highest among the other participating techniques. The distance experiment indicates that there is a direct and inverse relation between the distance and detected SURF features. It is also indicated by the results that distance affects the detection rate of the new proposed technique. In case of robot control, the differential drive solution using a speed model has less error rate than the one that uses a Gyro for angle measurement. It is also clear from the results that the greater the difference of speeds among the channels the less smooth is the angular movement. Conclusions: The results indicate that by combining a key-point based technique with colour segmentation, the false positive rate can be reduced and hence object recognition performance improves . It has also become clear that the improved accuracy of the proposed technique is limited to small distances and its performance decreases rapidly with increase in the distance to target objects. For robot control, the results indicate that a Gyro alone cannot improve the movement accuracy of the robotic system due to a variable drift exhibited by the Gyro while in rotation. However, a Gyro can be effective if used in combination with a magnetometer and some form of estimation mechanism like a Kalman filter. A Kalman filter can be used to correct the error in the Gyro by using the output from the magnetometer, resulting in a good estimate.Bakgrund: Effektiv vision behandling är ett viktigt studieområde för mobila robotar som använder vision att upptäcka föremål. Problemet upptäcka små och medelstora färgade föremål (t.ex. Lego tegelstenar) utan konsistens information kan lösas med färg eller konturer av föremålen. Formen på sådana föremål spelar ingen hjälpa mycket att upptäcka föremål på grund av den dåliga kvaliteten på bild och ringa storlek på objektet i bilden. I sådana fall är det sett att användningen av hybrid-teknik kan gynna den totala upptäckt av föremål, särskilt genom att kombinera keypoint metoder med färgen tekniker. Robotic motion spelar också en viktig roll i genomförandet av självständiga uppgifter. Mobila robotar har olika konfigurationer för transport. Det viktigaste är differentierad styrning på grund av dess tillämpning i känsliga områden som stridsvagnar och säkerhet plattformar robot. Den kinematiska utformningen av en robot plattform är vanligtvis baserad på antalet hjul och deras rörelser. Det kan finnas flera konfigurationer av hjul mönster, till exempel olika enheter, bil-liknande mönster, rundstrålande, och driver synkroniserad. Differential drivsystem använder fart om olika kanaler för att bestämma den kombinerade snabbhet och banan för roboten. Exakt förflyttning av roboten är mycket viktigt för korrekt ifyllande av sin verksamhet. Mål: En vision lösning har utvecklats som kan upptäcka små och medelstora färg objekt i miljön. Detta har också jämfört med andra tekniker form upptäcka för utvärdering av prestanda. Effekten av avstånd vid upptäckt är också undersökas för de deltagande tekniker. Den exakta rörelse av en fyrhjulsdriven olika drivsystem undersöks. Målet robot plattform använder en differentierad system driva styrning och i centrum för denna studie är korrekt läge och riktning kontroll baserat på sensordata. Metoder: För att upptäcka, en ny hybrid metod "HistSURF" föreslås och jämförs med andra tekniker vision bearbetning. Denna metod kombinerar resultaten av färg histogram jämförelse och upptäckt av SURF algoritm. En lösning för differentierad styrning med hjälp av en Gyro för varvtal mätningen jämförs med en lösning med en hastighet modell och utgångar kontroll utan återkoppling (dvs död räkning). Resultat: Resultaten från den vision experiment inom den nya föreslagna metoden högsta bland de andra deltagande tekniker. Avståndet experiment indikerar att det finns ett direkt och omvänd korrelation mellan avstånd och upptäckt SURF funktioner. Det är också framgå av resultatet från det avståndet påverkar upptäckten hastighet av den nya föreslagna tekniken. Vid robot kontroll har skillnaden köra lösningen med en hastighet modell mindre felfrekvens än den som använder en Gyro för vinkelmätning. Det framgår även av resultaten att ju större skillnaden i hastigheter mellan de kanaler de mindre smidiga är vinkelrörelse. Slutsatser: Resultaten visar att genom att kombinera en central-punkt baserad teknik med färg segmentering, den falska positiva kan sänkas och därmed objektigenkänning prestanda ökar. Det har också blivit uppenbart att förbättrad noggrannhet av den föreslagna tekniken är begränsad till små avstånd och dess prestanda minskar snabbt med ökat avstånd till målet objekt. För robot kontroll, tyder resultaten på att en Gyro inte ensam kan förbättra rörligheten noggrannhet robotsystem på grund av en variabel glida ut av Gyro medan rotation. Men en Gyro kan vara effektiva om de används i kombination med en magnetometer och någon form av uppskattning mekanism som ett Kalman filter. En Kalman filter kan användas för att rätta till felet i Gyro med hjälp av utdata från magnetometer, vilket resulterar i en god uppskattning.
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Seyček, Martin. "Propojení marketingových a prodejních aktivit při relaunchi produktu Visine." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-3060.
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Tato diplomová práce si klade za hlavní cíl zhodnotit na základě analýzy úspěšnost propojení marketingových a prodejních aktivit při relaunchi produktu Visine červené oči. Dále také analyzuje stěžejní elementy relaunche Visinu a vyslovuje doporučení pro zajištění úspěšného průběhu prodejních kampaní v oblasti volně prodejných léků.
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Montoya, Vilchez Nelson Gonzalo. "Percepción de seguridad de los turistas nacionales que visitan el Complejo Arqueológico de Túcume." Bachelor's thesis, Universidad Católica Santo Toribio de Mogrovejo, 2021. http://hdl.handle.net/20.500.12423/3005.
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El sector turismo ha ido incrementando al pasar los años y del mismo modo las necesidades del turista, es por ello que se está logrando mejorar la imagen del país para que así podamos desarrollar una percepción positiva en él. Pero actualmente, a pesar de ello, en Lambayeque han incrementado considerablemente las cifras en cuanto a denuncias de actos delictivos y Túcume no es ajeno a este problema, estos sucesos son factores claves en cuanto se refiere a la seguridad turística, puesto que, influye mucho en la decisión del turista que decide visitar el Complejo Arqueológico de Túcume; por ende esta investigación tiene como objetivo analizar la percepción de seguridad de los turistas nacionales que visitan el Complejo Arqueológico de Túcume y para lograr el desarrollo nos hemos basado en autores netamente del sector turismo. Asimismo, podemos deducir que la investigación tiene un enfoque mixto, debido a la utilización de encuestas para los turistas nacionales y una entrevista dirigida a la directora del Complejo Arqueológico de Túcume. Gracias a ello se determinó que el Turista se encuentra seguro al visitar el Complejo en cuanto se refiere a presencia policial, pero cuenta con déficit en las otras dimensiones de seguridad turística
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Brück, Andreas [Verfasser]. "URBAN TOMORROWS 2030 : Visions & Counter-Visions for Future Cities / Andreas Brück." Berlin : epubli, 2017. http://d-nb.info/114259002X/34.
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Kornrumpf, Benthe. "Visuo-spatial attention in reading." Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17627.
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Visuell-räumliche Aufmerksamkeit spielt eine Schlüsselrolle in der Wortverarbeitung und der Augenbewegungskontrolle beim Lesen. Dennoch bleibt die räumliche und zeitliche Dynamik von Aufmerksamkeitsbereitstellung innerhalb einer Fixation ungeklärt. Die vorliegende Dissertation nutzt drei Ansätze in der Ko-Registrierung von Augenbewegungen und EEG um diese Forschungslücke zu untersuchen und direkte Einblicke in die Aufmerksamkeitsverteilung zwischen Fovea und Parafovea, ihre Anpassung an Verarbeitungsansprüche und Sakkaden sowie ihre Auswirkungen auf Wortverarbeitung zu liefern. In Studie 1 wurde das Probe Paradigma als Maß zur Abbildung räumlicher Aufmerksamkeit ohne Augenbewegungen implementiert. Die vergrößerte, Probe-bezogene N1 zwischen Wortpräsentationen deutet auf eine Bereitstellung und Umverteilung zusätzlicher Ressourcen zur simultanen fovealen und parafovealen Wortverarbeitung hin. Studie 2 untersuchte den Preview Benefit und seine Modulation durch Sakkaden und Verarbeitungsschwierigkeit und zielte darauf ab, das elektrophysiologische Korrelat als indirektes Maß für parafoveale Aufmerksamkeit in ERPs und FRPs zu etablieren. Es zeigte sich ein Effekt des orthographischen Previews auf die N1. Interaktionen mit Lesemodus und Verarbeitungsschwierigkeit implizieren, dass dem Preview Effekt Aufmerksamkeitseffekte zugrunde liegen. In Studie 3 wurden zwei Datensätze hinsichtlich der Lateralisierung von Oszillationen im Alpha-Band untersucht um die in Studie 2 generierten Hypothesen zu unterstützen. Alpha war im sakkadischen Lesen stärker rechts-lateralisiert als in RSVP und eine stärkere Lateralisierung sagte eine kürzere Fixationsdauer vorher, was die Rolle von parafovealer Aufmerksamkeit und ihre Verbindung zu Sakkaden betont. Trotz der Einschränkungen der drei Ansätze stellt die Kombination von Augenbewegungen, ERPs, FRPs und EEG-Oszillationen geeignete Maße für Aufmerksamkeitsprozesse in der Wortverarbeitung dar, die traditionelle Forschungsmethoden ergänzen.Visuo-spatial attention is a key contributor to word processing and oculomotor control in reading. Yet, the spatial and temporal dynamics of attention allocation within a fixation remain unclear. The present dissertation uses three approaches in the co-registration of eye movements and EEG to investigate this gap and provide direct, online insights into attention distribution across fovea and parafovea, its adaptation to processing load and saccadic behavior, as well as its effects on word processing. In Study 1, the probe paradigm was implemented as a mapping tool of spatial attention adaptation in the absence of eye movements, yielding ERPs. The enhanced probe-related N1 in-between trials indicates a recruitment and redistribution of additional resources to achieve simultaneous foveal and parafoveal word-recognition. Study 2 tested the preview benefit and its modulation by saccades and foveal load, thereby aiming at establishing its electrophysiological correlate as an indirect index of parafoveal attention allocation in ERPs and FRPs. There was an effect of orthographic preview on the N1. Interactions with reading mode and foveal load indicate underlying attention effects. In Study 3, two datasets were reanalyzed with regard to the lateralization of oscillatory activity in the alpha-band in order to directly support the assumptions generated in Study 2. Alpha was more strongly right-lateralized in saccadic reading compared to RSVP, and moment-to-moment lateralization predicted shorter subsequent fixation duration, emphasizing the role of parafoveal attention allocation and its relation to saccades. Despite the limitations of the three approaches at this point, the combination of eye movements, ERPs, FRPs, and EEG oscillations provides suitable online markers of attention processes in word recognition that complement traditional research methods.
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Parolin, Alessandro. "Segmentação de imagens de pessoas em tempo real para videoconferências." Universidade do Vale do Rio dos Sinos, 2011. http://www.repositorio.jesuita.org.br/handle/UNISINOS/3005.
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HP - Hewlett-Packard Brasil Ltda
Milton Valente
Segmentação de objetos em imagens e vídeos é uma área relativamente antiga na área de processamento de imagens e visão computacional. De fato, recentemente, devido à grande evolução dos sistemas computacionais em termos de hardware e à popularização da internet, uma aplicação de segmentação de imagens de pessoas que vem ganhando grande destaque na área acadêmica e comercial são as videoconferências. Esse tipo de aplicação traz benefícios a diferentes áreas, como telemedicina, educação à distância, e principalmente empresarial. Diversas empresas utilizam esse tipo de recurso para realizar reuniões/conferências a nível global economizando quantias consideráveis de recursos. No entanto, videoconferências ainda não proporcionam a mesma experiência que as pessoas têm quando estão num mesmo ambiente. Portanto, esse trabalho propõe o desenvolvimento de um sistema de segmentação da imagem do locutor, específico para videoconferências, a fim de permitir futuros processamentos que aumentem a sensação de imersão dos participantes, como por exemplo, a substituição do fundo da imagem por um fundo padrão em todos ambientes. O sistema proposto utiliza basicamente um algoritmo de programação dinâmica guiado por energias extraídas da imagem, envolvendo informações de borda, movimento e probabilidade. Através de diversos testes realizados, observou-se que o sistema apresenta resultados equiparáveis aos do estado da arte do tema, sendo capaz de ser executado em tempo real a uma taxa de 8 FPS, mesmo com um código não otimizado. O grande diferencial do sistema proposto é que nenhum tipo de treinamento prévio é necessário para efetuar a segmentação
Object segmentation has been discussed on Computer Vision and Image processing fields for quite some time. Recently, given the hardware evolution and popularization of the World Wide Web, videoconferences have been the main discussion in this area. This technique brings advantages to many fields, such as telemedicine, education (distance learning), and mainly to the business world. Many companies use videoconferences for worldwide meetings, in order to save a substantial amount o f resources. However, videoconferences still do not provide the same experience a s people have when they are in the same room. Therefore, in this paper we propose the development of a system to segment the image of a person who is attending the videoconference, in order to allow future processing that may increase the experience of being in the same room. For instance, the background of the scene could be replaced by a standard one for all participants. The proposed system uses a dynamic programming algorithm guided by energies, such as image edges, motion and probabilistic information. After extensive tests, we could conclude that the results obtained are comparable to other state of the art works and the system is able to execute in real time at 8 FPS. The advantage of the proposed system when compared to others is that no previous training is required in order to perform the segmentation
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Gebrael, Tatiana Luísa Reis. "Programa de capacitação de docentes para promover independência de crianças com baixa visão nas atividades de vida diária : PRÓ-AVD." Universidade Federal de São Carlos, 2009. https://repositorio.ufscar.br/handle/ufscar/3040.
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Previous issue date: 2009-08-25Universidade Federal de Minas Gerais
It is estimated that in Brazil one of 500 children have low vision. In this population, among all difficult possible, have the dependency in daily life activities (ADL), that influence at social integration, learning and school inclusion. Detached for the regular teacher s work inside the class with ADL´s children especially in preschool. The propose of this work was to develop, implement and evaluate one individual program of collaborative assessoring in Occupational Therapist for teacher training, to increase their repertoire of strategies and resources to promote the independence of preschool children with low vision in activities of daily hygiene and nutrition, called PRÓ-AVD . Study participants were 10 teachers and 10 students with low vision aged between 4 and 6 years of regular education children. The experimental design of the study consisting of 5 teachers and 5 students belonging to the Experimental Group who received the intervention in a first moment, and 5 teachers and 5 students to the control group that received no intervention. The elaborate of the training program involved the study of children's abilities in the tasks of self, and his visual capacity, the original repertoire of the teacher, and the dynamics of dyad Teacher - Student in carrying out AVDs. The implementation happened through collaborative assessoring, on 6 weekly meetings, consecutive, consisting of interactive dynamic between the researcher and teacher. Measures were taken pre-test and post-test and a field diary, analysis of film and questionnaires to assess qualitatively and quantitatively the effect of the intervention program in increasing the repertoire of teachers to promote the independence of their students in AVDs. The program showed efficient when applied, the results were increasing her preparation and teacher repertory to work with hygienic and alimentation activities of the student with low vision. It is believed that the use of methods and teaching approaches, practice activities, feedback and support of researcher presence than weekly meetings were crucial to the membership and participation of teachers, as well as to obtain the results.
Estima-se que no Brasil uma entre 500 crianças possua baixa visão. Dentre as possíveis dificuldades apresentadas por esta população, encontra-se a dependência nas Atividades de Vida Diária (AVD), o que influencia em sua interação social, aprendizagem e inclusão escolar. Nesta perspectiva, o trabalho do professor regular dentro de sala de aula com estas AVDs nos alunos com baixa visão é de grande importância especialmente na pré-escola. O objetivo deste estudo foi elaborar, implementar e avaliar um programa individualizado de consultoria colaborativa em Terapia Ocupacional, com o intuito de capacitação de professores, no sentido de aumentar seu repertório de estratégias e recursos para promover a independência de crianças pré-escolares com baixa visão nas atividades de vida diária de higiene e alimentação, denominado PRÓ-AVD. Participaram do estudo 10 professores e 10 alunos com baixa visão com idades entre 4 e 6 anos, do ensino infantil regular. O delineamento do estudo foi experimental constando de 5 Professores e 5 Alunos pertencentes ao Grupo Experimental, que receberam a intervenção em um primeiro momento, e 5 Professores e 5 Alunos ao Grupo Controle, que não receberam a intervenção. A elaboração do programa de capacitação envolveu o estudo das habilidades da criança nas tarefas de autocuidado, e de sua capacidade visual, do repertório inicial do Professor, e da dinâmica da díade Professor Aluno durante a realização das AVDs. A implementação ocorreu por meio de consultoria colaborativa em 6 encontros semanais, consecutivos, constituídos de dinâmicas interativas entre a Pesquisadora e a Professora. Foram realizadas medidas pré-teste e pósteste, utilizou-se diário de campo, análise de filmagens e questionários a fim de avaliar quantitativa e qualitativamente o efeito do programa de intervenção no aumento do repertório dos professores para promover a independência de seus alunos nas AVDs. O programa se mostrou eficaz em sua aplicação e os resultados observados apontaram para o aumento do preparo e do repertório dos professores do Grupo Experimental para trabalhar com as atividades de higiene e alimentação de seus alunos com baixa visão. Acredita-se que a utilização de métodos e abordagens didáticas, atividades práticas, feedback e suporte presencial da pesquisadora, além dos encontros semanais, foram decisivos para a adesão e participação das professoras, assim como para a obtenção dos resultados positivos.
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Åström, Alexander. "The Korean Peninsula: Where the Cold War Never Ended : The Foreign Policy of the Republic of Korea on a peaceful reunification with the Democratic People’s Republic of Korea." Thesis, Högskolan i Halmstad, Sektionen för hälsa och samhälle (HOS), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-23189.
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This paper examines different foreign policies of the Republic of Korea (South Korea) towards the Democratic People’s Republic of Korea (North Korea) with regards to a peaceful reunification of the Korean Peninsula. The paper uses the theoretical framework of Social Constructivism to analyze what impact the different foreign policies of South Korea towards North Korea have had on their relations, thus providing an understanding of what impact those foreign policies have had on the peaceful reunification process of the Korean Peninsula. The paper will also look at the First Korean Nuclear Crisis, the Second Korean Nuclear Crisis, the ROKS Cheonan sinking and the shelling of Yeonpyeong, and with the help from the theoretical framework of Social Constructivism, analyze what impact those incidents have had on South Korea’s foreign policy and relations with North Korea, thus providing an understanding what impact those incidents have had on the peaceful reunification process of the Korean Peninsula.
Books on the topic "Vision 3000"
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Lee, Andrew G., Carmel B. Dyer, Mariam Hussain, and T. Ashwini Kini. Comorbid Vision and Hearing Loss. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30050-0.
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Vision 3000: The Transformation of Humanity in the New Millenium. Virtualbookworm.com Publishing, 2006.
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Vision 3000: The Transformation of Humanity in the New Millenium. Virtualbookworm.com Publishing, 2006.
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Fox, Georgia L., ed. An Archaeology and History of a Caribbean Sugar Plantation on Antigua. University Press of Florida, 2020. http://dx.doi.org/10.5744/florida/9781683401285.001.0001.
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An Archaeology and History of a Caribbean Sugar Plantation on Antigua uses archaeological and documentary evidence to reconstruct daily life at Betty’s Hope plantation on the island of Antigua, one of the largest sugar plantations in the Caribbean. It demonstrates the rich information that the multidisciplinary approach of contemporary historical archaeology can offer when assessing the long-term impacts of sugarcane agriculture on the region and its people. Drawing on ten years of research at the 300-year-old site, the researchers uncover the plantation’s inner workings and its connections to broader historical developments in the Atlantic World. Excavations at the Great House reveal similarities to other British colonial sites, and historical records reveal the owners’ involvement in the Atlantic slave trade and in the trade of rum and other commodities. Artifacts uncovered from the slave quarters—ceramic tokens, repurposed bottle glass, and hundreds of Afro-Antiguan pottery sherds—speak to the agency of enslaved peoples in the face of harsh living conditions. Contributors also use ethnographic field data collected from interviews with contemporary farmers, as well as soil analysis to demonstrate how three centuries of sugarcane monocropping created a complicated legacy of soil depletion. Today tourism has long surpassed sugar as Antigua’s primary economic driver. Looking at visitor exhibits and new technologies for exploring and interpreting the site, the volume discusses best practices in cultural heritage management at Betty’s Hope and other locations that are home to contested historical narratives of a colonial past.
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Martínez, Virginia, and Oscar Duarte, eds. Libro de resúmenes de las V Jornadas de Ciencia y Tecnología de la Facultad de Ciencias Exactas de la Universidad Nacional de La Plata. Universidad Nacional de La Plata, 2016. http://dx.doi.org/10.35537/10915/127328.
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Las V Jornadas de Ciencia y Tecnología que se desarrollaron en la Facultad de Ciencias Exactas entre el 12 y el 14 de noviembre de 2014 tuvieron por objetivos generar un espacio de encuentro de la comunidad perteneciente a la institución, establecer las bases para que, a través del intercambio de ideas, se promuevan o incrementen las colaboraciones entre distintos grupos de investigación, promover la participación de investigadores consolidados, investigadores jóvenes y becarios, con el fin de transferir a la comunidad las distintas visiones con las que se encaran los estudios científicos en los distintos campos y áreas de trabajo, acercar a los estudiantes y jóvenes egresados la experiencia enriquecedora de la tarea de investigación que se desarrolla en el seno de la Facultad con sus Centros, Institutos y laboratorios, conocer las actividades de transferencia que implican no sólo servicios calificados, sino también desarrollos de interés para los distintos actores de la sociedad, establecer pautas para delinear las políticas de investigación de la institución en los próximos años sobre la base de sus fortalezas, capacidades instaladas en el presente y del potencial para continuar con el proceso de formación de recursos humanos. En nuestra Facultad tienen sede 21 centros e institutos de investigación, laboratorios consolidados y de reciente creación. En esta institución se desarrollan del orden de 300 proyectos de investigación acreditados y/o cofinanciados principalmente por la UNLP, CONICET, ANPCyT y CICPBA. Estos proyectos cubren distintas áreas de las ciencias físicas, químicas, matemáticas y biológicas, en las que participan más de 600 investigadores, becarios, docentes-investigadores, profesionales y alumnos. Como consecuencia de esa actividad, durante los últimos años, se han publicado más de 1500 artículos científicos, muchos de ellos en medios de difusión internacional de impacto medio-alto, más de 500 artículos de difusión científica anuales, informes técnicos calificados, etc. Por otra parte, se encuentran en desarrollo más de 450 tesis doctorales, así como numerosas tesinas de grado y tesis de magister, lo que da muestras del potencial de la institución para la formación continua de recursos humanos. En el presente libro de resúmenes se pueden encontrar las contribuciones presentadas por los distintos grupos, laboratorios, centros e institutos. Esperamos que este material contribuya a mostrar el potencial actual de creación intelectual, tanto a la comunidad académica de la Facultad, como a la comunidad universitaria en general, y a la sociedad en la que la Facultad está inserta.
Book chapters on the topic "Vision 3000"
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Miyai, Machiko. "Panasonic’s Environmental Vision and its Practices." In Design for Innovative Value Towards a Sustainable Society, 1–3. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-3010-6_1.
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Nagai, T., and M. Mokuno. "Small Satellite Development and Future Vision of NASDA." In Smaller Satellites: Bigger Business?, 393–95. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-3008-2_55.
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Dreisbach, Rolf Heinrich, Martin Wieser, Franz Hofer, Helmut Theissl, Hans Felix Seitz, Kurt Schmidleitner, Heinz-Georg Flesch, et al. "50 % brake thermal efficiency – the realization of a vision." In Proceedings, 257–81. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-30500-0_18.
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Radcliffe, T., and L. Summerer. "Master of Space Studies 2001 Views and Visions." In Smaller Satellites: Bigger Business?, 127–32. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-3008-2_13.
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Kim, H. "Vision of Future Space Systems Based on Recent MEMS and Nano-technology Developments." In Smaller Satellites: Bigger Business?, 383–85. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-3008-2_52.
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Siddique, Shahid, and Sebastian Eves-van den Akker. "Nematode management through genome editing." In Integrated nematode management: state-of-the-art and visions for the future, 408–13. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789247541.0057.
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Abstract Plant parasitic nematodes are among the most destructive plant pathogens, causing an estimated US$78 billion yield losses globally. Although approximately 3000 species of plant parasitic nematodes have been described, most of the damage is caused by a small group of root-infecting sedentary endoparasitic nematodes that include root-knot nematodes (Meloidogyne spp.) and cyst nematodes (Heterodera spp.). Given that previous literature amply reviews the breadth of biotechnological methods for the control of plant parasitic nematodes, this chapter will briefly touch on long-standing biotechnological methods but focus on recent progress in, and long-term promise of, the use of CRISPR technology for introducing targeted modifications into host genomes with the goal of enhancing resistance against plant parasitic nematodes. It is predicted that expanding reverse genetic approaches beyond RNA interference, using low-cost, technically simple and efficient transformation (transient or stable) will be the single most important advance in the field in some years.
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Atkinson, Rosalind. "A Japanese Blake: Embodied Visions in William Blake’s The Marriage of Heaven and Hell (1790) and Tezuka Osamu’s Phoenix (1967–88)." In Asia-Pacific and Literature in English, 341–60. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3001-8_14.
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Pastoors, Andreas, Tilman Lenssen-Erz, Tsamgao Ciqae, /Ui Kxunta, Thui Thao, Robert Bégouën, and Thorsten Uthmeier. "Episodes of Magdalenian Hunter-Gatherers in the Upper Gallery of Tuc d’Audoubert (Ariège, France)." In Reading Prehistoric Human Tracks, 211–49. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-60406-6_13.
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AbstractThe Tuc d’Audoubert cave (Ariège, France) offers unique insights into the life of Late Pleistocene hunters-gatherers due to its exceptionally good preservation conditions. This is especially true for the 300 footprints in the upper gallery of the cave. Even for the layperson, some trackways are easily recognized. Short episodes of past life become tangible. The spectrum of scientific analytic methods used in western science has not yet provided an option to interpret these visible episodes satisfactorily. For this reason, tracking experts, i.e. indigenous ichnologists, were invited to analyse the footprints in Tuc d’Audoubert. With their dynamic approach of identification, they are able to do justice to the dynamics embodied in the footprints. In total, eight main concentrations in four different locations were studied. Two hundred fifty-five footprints were identified and grouped into 24 events. In view of the group compositions and the assumption that humans did not climb alone into the upper gallery for security reasons, it can be concluded that a maximum of five visits by two to six subjects were carried out. Among the events, the couple of an adult man and an adult woman, who appear together in a total of ten different spots, is particularly noteworthy. Altogether, this study is a first step of a multi-stage procedure. Further analyses based on measurements and plantar pressure analyses will follow.
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Fakhfakh, Nizar, Louahdi Khoudour, Jean-Luc Bruyelle, and El-Miloudi El-Koursi. "Intelligent Surveillance System Based on Stereo Vision for Level Crossings Safety Applications." In Recent Developments in Video Surveillance. InTech, 2012. http://dx.doi.org/10.5772/30400.
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Paiano, Roberto, Anna Lisa Guido, and Andrea Pandurino. "The Design Vision." In Designing Complex Web Information Systems, 106–30. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-300-5.ch005.
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From the considerations made in the previous chapters, it emerges that the design of the complex Web information system must consider in a separate way two most important aspects of Web application: on one hand, the definition of the business processes, and on the other hand, to identify an optimal way to define what information is remarkable and how to present this information to the final user.
Conference papers on the topic "Vision 3000"
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Singh, Bharat, Hengduo Li, Abhishek Sharma, and Larry S. Davis. "R-FCN-3000 at 30fps: Decoupling Detection and Classification." In 2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2018. http://dx.doi.org/10.1109/cvpr.2018.00119.
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Ren, Shaoqing, Xudong Cao, Yichen Wei, and Jian Sun. "Face Alignment at 3000 FPS via Regressing Local Binary Features." In 2014 IEEE Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2014. http://dx.doi.org/10.1109/cvpr.2014.218.
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Grecheneva, Anastasya, Nikolay Dorofeev, and Maxim Goryachev. "An Intelligent Approach to Recognizing Human Movements Based on a Wearable Device." In 31th International Conference on Computer Graphics and Vision. Keldysh Institute of Applied Mathematics, 2021. http://dx.doi.org/10.20948/graphicon-2021-3027-988-993.
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n this paper, we consider the possibility of distinguishing the movements of a person and people by their gait based on data obtained from the accelerometer of a wearable device. A mobile phone was used as a wearable device. The paper considers the features of recognizing human movements based on a wearable device. A recognition algorithm based on a neural network with preliminary data processing and correlation analysis is proposed. The volume of the training sample consisted of 32 subjects with various physiological characteristics. The sample size in the subgroup of four people ranged from 2000 to 3000 movements. The main motor patterns for classification were the movements performed when walking in a straight line and stairs with a load (a bag with a laptop weighing 3.5 kg) and without it. The direct propagation network is chosen as the basic structure for the neural network. The neural network has 260 input neurons, 100 neurons in one hidden layer, and 4 neurons in the output layer. When training the neural network, the gradient reverse descent function was used. Cross- entropy was used as an optimization criterion. The activation function of the hidden layer was a sigmoid, and the output layer was a normalized exponential function. The presented algorithm makes it possible to distinguish between subjects when performing different movements in more than 90% of cases. The practical application of the results of the work is relevant for automated information systems of the medical, law enforcement and banking sectors.
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Lu, Baoping, Ting Xu, Yuebin Huang, Xingang Tao, Hongbao Zhang, Shunhui Yang, Jun Jiang, Xutian Hou, Rached Rached, and Zhifa Wang. "Applications of Computer Vision and Deep Learning in Visual Features Extraction of Drill Bits." In International Petroleum Technology Conference. IPTC, 2022. http://dx.doi.org/10.2523/iptc-22624-ms.
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Abstract Drill bit dull grading provides basic information for bit performance evaluation, drilling parameters optimization and BHA optimization. Traditional dull grading standard from IADC depends on visual inspection, which is subjective, low accuracy & efficiency and of lower information dimension. Computer vision is one of the most mature applications of artificial intelligence. In petroleum engineering, researchers started to use image processing to evaluate bit damage. But there are technical challenges for wider usage of this technology due to accuracy of object detection and image classification in complex environments, integrative description of 3D objects, various bit profiles, cutter structures and dull shapes, etc. More than 3000 images of bits before and after drilling are collected and pre-processed for the research. A workflow to detect objects (bit, blades, cutters, nozzles, etc.) in images are designed, and the performance of several front-edge algorithms are compared, such as Faster RCNN, Yolo, etc. and several methods are used to improve detection performance in complex light environment. Multi view images fusion was conducted for an integrative view of bit picture for integrative bit dull grading report. Structured light camera is tested to improve the accuracy of 3D cutting features. It's shown that the accuracy of object detection in wellsite environment is over 90% and Faster RCNN performs with more robustness. It's possible to generate 3D structures with multi view images or videos and the image resolution is critical to the definition of 3D images. Compared with common camera in mobile phone, structured light imaging features with higher accuracy in 3D structure mapping. The results helped to push the application of computer vision and AI in PDC bits evaluation at the well sites.
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Witherspoon, F. D., D. W. Massey, R. W. Kincaid, G. C. Whichard, and T. A. Mozhi. "High Velocity Pulsed Plasma Thermal Spray." In ITSC 2000, edited by Christopher C. Berndt. ASM International, 2000. http://dx.doi.org/10.31399/asm.cp.itsc2000p0669.
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Abstract The quality and durability of coatings produced by virtually all thermal spray techniques could be improved by increasing the velocity with which coating particles impact the substrate. Additionally, better control of the chemical and thermal environment seen by the particles during flight is crucial to the quality of the coating. A high velocity thermal spray device is under development through a BMDO SBIR project which provides significantly higher impact velocity for accelerated particles than is currently available with existing thermal spray devices. This device utilizes a pulsed plasma as the accelerative medium for powders introduced into the barrel. Recent experiments using a Control-Vision diagnostic system showed that the device can accelerate stainless steel and WC-Co powders to velocities ranging from 1500 to 2200 m/s. These high velocities are accomplished without the use of combustible gases, and without the need of a vacuum chamber, while maintaining an inert atmosphere for the particles during acceleration. The high velocities corresponded well to modeling predictions, and these same models suggest that velocities as high as 3000 m/s or higher are possible.
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Ogorzalek, Jeremy, Daniel Doyle, and Jonathan Black. "Autonomous Small Unmanned Aerial Systems Computer Vision Tracking." In AIAA Aviation 2019 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-3050.
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Davis, Milt, and Peter Montgomery. "A Flight Simulation Vision for Aeropropulsion Altitude Ground Test Facilities." In ASME Turbo Expo 2002: Power for Land, Sea, and Air. ASMEDC, 2002. http://dx.doi.org/10.1115/gt2002-30003.
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Testing of a gas turbine engine for aircraft propulsion applications may be conducted in the actual aircraft or in a ground-test environment. Ground test facilities simulate flight conditions by providing airflow at pressures and temperatures experienced during flight. Flight-testing of the full aircraft system provides the best means of obtaining the exact environment that the propulsion system must operate in but must deal with limitations in the amount and type of instrumentation that can be put on-board the aircraft. Due to this limitation, engine performance may not be fully characterized. On the other hand, ground-test simulation provides the ability to enhance the instrumentation set such that engine performance can be fully quantified. However, the current ground-test methodology only simulates the flight environment thus placing limitations on obtaining system performance in the real environment. Generally, a combination of ground and flight tests is necessary to quantify the propulsion system performance over the entire envelop of aircraft operation. To alleviate some of the dependence on flight-testing to obtain engine performance during maneuvers or transients that are not currently done during ground testing, a planned enhancement to ground-test facilities was investigated and reported in this paper that will allow certain categories of flight maneuvers to be conducted. Ground-test facility performance is simulated via a numerical model that duplicates the current facility capabilities and with proper modifications represents planned improvements that allow certain aircraft maneuvers. The vision presented in this paper includes using an aircraft simulator that uses pilot inputs to maneuver the aircraft engine. The aircraft simulator then drives the facility to provide the correct engine environmental conditions represented by the flight maneuver.
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Tadeusz, Szkodny. "Application of vision information to planning trajectories of Adept Six-300 robot." In 2016 21st International Conference on Methods and Models in Automation and Robotics (MMAR). IEEE, 2016. http://dx.doi.org/10.1109/mmar.2016.7575286.
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Tadeusz, Szkodny. "Application of vision information to planning trajectories of Adept Six-300 robot." In 2016 International Conference on Advanced Robotics and Mechatronics (ICARM). IEEE, 2016. http://dx.doi.org/10.1109/icarm.2016.7606900.
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Szkodny, Tadeusz, and Adrian Legowski. "Planning trajectories of Adept Six-300 robot with using of vision information." In 2017 2nd International Conference on Advanced Robotics and Mechatronics (ICARM). IEEE, 2017. http://dx.doi.org/10.1109/icarm.2017.8273148.
Full textReports on the topic "Vision 3000"
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Hoekstra, Geert, Katell Hamon, and Jos op de Weegh. Vissen in de 12-mijlszone (update) : Inclusief 2015-2017 en kotters groter dan 300 pk. Wageningen: Wageningen Economic Research, 2018. http://dx.doi.org/10.18174/458081.
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Randall, Luke. - EU Harmonised Surveillance of Antimicrobial Resistance (AMR) in E. coli from Retail Meats in UK (2020 - Year 6, chicken). Food Standards Agency, November 2021. http://dx.doi.org/10.46756/sci.fsa.phi798.
Full textAbstract:
In accordance with European Directive 2003/99/EC on the monitoring of bacteria that can pass from animals to humans and cause disease, Member States are obliged to ensure that procedures are in place to monitor and report on the occurrence of antimicrobial resistance (AMR) in such bacteria. The UK continued to be subject to EU rules during the transition period up to the end of December 2020. The requirements state that 300 retail chicken meats should be tested by culture for the bacterium Escherichia coli. E. coli bacteria are a normal part of the gut flora of mammals and as such can be useful “indicators” of AMR in gut bacteria. Whilst some strains of E. coli can cause disease, most strains of E. coli do not cause observable disease in healthy animals and humans. Addressing the public health threat posed by AMR is a national strategic priority for the UK, which has led to both a 20-year vision of AMR (Opens in a new window)and a 5-year (2019 to 2024) AMR National Action Plan (NAP)