Academic literature on the topic 'Visibilitet'
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Journal articles on the topic "Visibilitet"
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Yudhanta, Widi Cahya. "PENGARUH KONFIGURASI DAN VISIBILITAS RUANG PADA AKSESIBILITAS, Studi Kasus pada Kawasan XT Square Yogyakarta." Jurnal Arsitektur KOMPOSISI 12, no. 1 (June 21, 2018): 67. http://dx.doi.org/10.24002/jars.v12i1.1647.
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Abstract: XT Square is a kind of building having cultural commerciality function. The existence of this building is very important in supporting artists who live within it. Layout pattern becomes one of accessibility factors in XT Square area. Configuration and visibility shape influence the use of space pattern and people’s interest pattern in accessing every space in the building. The setting system between indoor space and outdoor space will give an easy effort for the people in living in and recognizing the space that it can be accessed comfortably. Configuration and visibility approachs are used in order to analyse the accessibility level of the space usage in that area. The result of the visibility and configuration analysis shows that there are many spaces having low integration that blocks do not integrated strongly and low visibility influences the appearance of the building in that area. This research suggest to open the visibility barrier and give high visibility that it can be recognized.Keywords: configuration, accessibility, visibility, system setting Abstraksi: XT Square merupakan bangunan dengan fungsi komersial budaya. Keberadaanya menjadi sangat penting guna mendukung pengrajin kesenian dan budaya di Kota Yogyakarta. Pola layout menjadi salah satu faktor aksesibilitas dalam kawasan XT Square. Bentuk konfigurasi dan visibilitas mempengaruhi pola pengunaan ruang dan pola keterarikan orang dalam mengakses setiap ruang dalam kawasan. Sistem setting antar ruang dalam dan ruang luar menjadikan kemudahan penguna dalam menempati ruang dan pengenalan ruang sehingga ruang menjadi nyaman untuk diakses. Pendekatan yang digunakan adalah pendekatan konfigurasi dan visibilitas, guna menganalisis tingkat aksesibilitas pengunaan ruang dalam kawasan. Hasil analisis visibilitas dan konfigurasi menunjukkan bahwa terdapat banyak ruang dengan integrasi lemah sehingga blok tidak saling terintegrasi dengan kuat serta rendahnya visibilitas setiap bangunan dalam kawasan. Penelitian ini memberikan rekomendasi dengan membuka pengahalang visibilitas dan memberi kantung tangkapan visibilitas agar ruang mudah dikenali.Kata kunci: konfigurasi, aksesibilitas, visibilitas, sistem setting
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Huang, Qiang, John Hanesiak, Sergiy Savelyev, Tim Papakyriakou, and Peter A. Taylor. "Visibility during Blowing Snow Events over Arctic Sea Ice." Weather and Forecasting 23, no. 4 (August 1, 2008): 741–51. http://dx.doi.org/10.1175/2008waf2007015.1.
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Abstract A field study on visibility during Arctic blowing snow events over sea ice in Franklin Bay, Northwest Territories, Canada, was carried out from mid-January to early April 2004 during the Canadian Arctic Shelf Exchange Study (CASES) 2003–04 expedition. Visibilities at two heights, wind and temperature profiles, plus blowing and drifting snow particle flux at several heights were monitored continually during the study period. Good relations between visibility and wind speed were found in individual events of ground blowing snow with coefficients of determination >0.9. Regression equations relating 1.5-m height visibility to 10-m wind speed can be used for predicting visibility with a mean relative error in the range of 19%–32%. Similar regression functions obtained from the data for observed visibility of less than 1 km could predict visibilities more accurately for more extreme visibility reductions and wind speeds (>9.5 m s−1) with mean relative error ranging from 15% to 26%. For the event of ground blowing snow, a simple power law relationship between wind speed and visibility is sufficient for operational purposes. A poorer relationship was observed in the event of blowing snow with concurrent precipitating snow. A theoretical visibility model developed by Pomeroy and Male fit well with observed visibilities if using a mean radius of 50 μm and an alpha value of 10. The predicted visibility had a mean relative error of 30.5% and root-mean-square error of 1.3 km. The observed visibility at 1.5 m had a strong relation with particle counter readings, with an R2 of 0.92, and was consistent among all events.
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Lopezosa, Carlos, Lluís Codina, and Mario Pérez-Montoro. "SEO and Digital News Media: Visibility of Cultural Information in Spain’s Leading Newspapers." Tripodos, no. 44 (February 5, 2021): 41–61. http://dx.doi.org/10.51698/tripodos.2019.44p41-61.
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This paper undertakes a comparative analysis of the visibility, and of other SEO indicators, of the culture sections of Spain’s leading digital newspapers —specifically, elmundo.es, elpais. com, lavanguardia.com, abc.es, elconfidencial.com and 20minutos.es— based on data collected by the media analytics company, comScore, and the web traffic metric, Alexa Rank. The analysis employs a set of positioning indicators: namely, a visibility index, keywords, social signals, keyword profiles, URLs, SERP-Snippets, reference domains and best anchor texts, as made available by SISTRIX, an SEO analytics audit toolbox. Thus, we were able to determine which of the digital newspapers’ culture sections has the best visibility. Likewise, we were able to identify which of these media are best positioned on Google, presumably as a result of more effective positioning strategies. We conclude with a discussion of our results and, on the basis of these findings, recommend ways in which the visibility of journalistic information can be optimised in search engines. SEO i cibermitjans: visibilitat de la informació cultural dels principals diaris d’Espanya Aquest article realitza una anàlisi comparativa de visibilitat i altres indicadors SEO de la secció de cultura dels principals cibermitjans espanyols: elmundo.es, elpais.com, lavanguardia.com, abc. es, elconfidencial.com i 20minutos. es. Les anàlisis s’han dut a terme amb la utilització d’un conjunt d’indicadors de posicionament (visibilitat, paraules clau, senyals socials, paraules clau, url, snippets, dominis de referència i millors textos àncora) utilitzant l’eina de auditoria i anàlisi de posicionament en cercadors, SISTRIX. Ens preguntem quin d’aquests mitjans té millor una secció de notícies culturals amb millor visibilitat. L’estudi dut a terme amb els indicadors seleccionats permet, d’aquesta manera, presentar una anàlisi comparativa del periodisme cultural i identificar quins d’aquests mitjans presenten millors posicions a Google, presumiblement, com a resultat d’estratègies de posicionament. Finalitzem amb una discussió dels resultats juntament amb unes recomanacions finals per optimitzar la visibilitat de la informació periodística en els cercadors.
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Li, Jiaping, Wai Lun Lo, Hong Fu, and Henry Shu Hung Chung. "A Transfer Learning Method for Meteorological Visibility Estimation Based on Feature Fusion Method." Applied Sciences 11, no. 3 (January 22, 2021): 997. http://dx.doi.org/10.3390/app11030997.
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Meteorological visibility is an important meteorological observation indicator to measure the weather transparency which is important for the transport safety. It is a challenging problem to estimate the visibilities accurately from the image characteristics. This paper proposes a transfer learning method for the meteorological visibility estimation based on image feature fusion. Different from the existing methods, the proposed method estimates the visibility based on the data processing and features’ extraction in the selected subregions of the whole image and therefore it had less computation load and higher efficiency. All the database images were gray-averaged firstly for the selection of effective subregions and features extraction. Effective subregions are extracted for static landmark objects which can provide useful information for visibility estimation. Four different feature extraction methods (Densest, ResNet50, Vgg16, and Vgg19) were used for the feature extraction of the subregions. The features extracted by the neural network were then imported into the proposed support vector regression (SVR) regression model, which derives the estimated visibilities of the subregions. Finally, based on the weight fusion of the visibility estimates from the subregion models, an overall comprehensive visibility was estimated for the whole image. Experimental results show that the visibility estimation accuracy is more than 90%. This method can estimate the visibility of the image, with high robustness and effectiveness.
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Boidy, Maxime. "Visibilities in Words, Visibilities on Bodies: Academic Sociopolitical Theories of Visibility and Militant Teachings From the Genoa Summit of July 2001." Qualitative Inquiry 25, no. 4 (January 18, 2019): 445–55. http://dx.doi.org/10.1177/1077800418821534.
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Political theory and social sciences are increasingly drawing on the concepts of “visibility” and “invisibility.” However, these concepts are deeply incompatible, depending on whether visibility is understood as a regime of power (in theories of surveillance) or as a moral framework (in theories of recognition). This article demonstrates how antagonisms between these academic paradigms can be conceptualized as “struggles of visibilities,” revealing the incompatibilities inherent to these theoretical frameworks and the coexistence of heterogeneous visibility regimes in the sociopolitical world. The study further documents how confrontations between different paradigms in academic theory are expressed in militant discourses and political strategies. The investigation focuses on activist testimonies and visual tactics used during the G8 summit of July 2001 in Genoa, where militant visibilities were spoken in words and made visible on bodies by clothing esthetics in demonstrations and riots.
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KIM, JAEHO, HYUNGSEOK KIM, and KWANGYUN WOHN. "VISIBILITY PREPROCESSING FOR COMPLEX 3D SCENES USING HARDWARE-VISIBILITY QUERIES." International Journal of Image and Graphics 06, no. 01 (January 2006): 1–21. http://dx.doi.org/10.1142/s0219467806002069.
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In cases of densely occluded urban scenes, it is useful to determine the visibility of scenes, since only small parts of the scene are visible from a given cell. In this paper, we introduce a new visibility preprocessing method that efficiently computes potentially visible objects for volumetric cells. The proposed method deals with general 3D polygonal models and invisible objects jointly blocked by multiple occluders. The proposed approach decomposes volume visibility into a set of point visibilities, and then computes point visibility using hardware-visibility queries. We carry out experiments on various large-scale scenes, and show the performance of our algorithm. Our performance analysis approach estimates the exact solution of volume visibility. From differences between the estimated solution and the proposed algorithms solution, we show that our algorithm seeks a tight overestimate of the potentially visible set (PVS).
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Ishimoto, Keishi, Masao Takeuchi, Shigeyuki Naitou, and Haruki Furusawa. "Development and Certification of A Visibility-Range Monitor By Image Processing." Annals of Glaciology 13 (1989): 117–19. http://dx.doi.org/10.1017/s0260305500007734.
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A new visibility-range measuring system has been developed which uses a video camera, and with which visibility can be estimated by measuring the brightness contrast of a black target against a standardized background. This principle has been applied to development of the new visibility-range monitor described in this paper. In this monitor, a charge-coupled device (CCD) video camera measures the brightness of an arbitrary area in its range of vision, and visibility range measured by the video camera in blowing snow can be compared with that measured by the transmissometer-type visibility-range monitor and can also be calculated by direct observation using optical targets. The new sytem can monitor visibility and record information about traffic on highways at 1 s intervals for a maximum of six separate positions. The vertical distribution of visibilities over a snow surface has been observed, and it has been found that the fluctuation in visibility is greatest at lower levels above the ground in blowing snow.
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Ishimoto, Keishi, Masao Takeuchi, Shigeyuki Naitou, and Haruki Furusawa. "Development and Certification of A Visibility-Range Monitor By Image Processing." Annals of Glaciology 13 (1989): 117–19. http://dx.doi.org/10.3189/s0260305500007734.
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A new visibility-range measuring system has been developed which uses a video camera, and with which visibility can be estimated by measuring the brightness contrast of a black target against a standardized background. This principle has been applied to development of the new visibility-range monitor described in this paper. In this monitor, a charge-coupled device (CCD) video camera measures the brightness of an arbitrary area in its range of vision, and visibility range measured by the video camera in blowing snow can be compared with that measured by the transmissometer-type visibility-range monitor and can also be calculated by direct observation using optical targets.The new sytem can monitor visibility and record information about traffic on highways at 1 s intervals for a maximum of six separate positions. The vertical distribution of visibilities over a snow surface has been observed, and it has been found that the fluctuation in visibility is greatest at lower levels above the ground in blowing snow.
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Chen, Zhixiang, and Binna Ou. "Visibility Detection Algorithm of Single Fog Image Based on the Ratio of Wavelength Residual Energy." Mathematical Problems in Engineering 2021 (June 24, 2021): 1–13. http://dx.doi.org/10.1155/2021/5531706.
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Different visibilities and different wavelength attenuations can cause color deviation problem in some dehazing algorithms. A visibility detection algorithm based on a single fog image is proposed. First, the visibility range of the image is preliminarily determined according to the transmissivity; then, the normalized differences between the residual energy ratios of different wavelengths of RGB channels are calculated, and the pixels with large gray deviation of a single channel are filtered to improve the calculation accuracy; finally, the image visibility detection value is calculated. The experimental results show that the proposed algorithm not only effectively reflects the fog image visibility but is also well suited for evaluating the effectiveness of the image defogging algorithms and the restoration degree of the defogging color difference.
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Chen, J., C. S. Zhao, N. Ma, P. F. Liu, T. Göbel, E. Hallbauer, Z. Z. Deng, et al. "A parameterization of low visibilities for hazy days in the North China Plain." Atmospheric Chemistry and Physics 12, no. 11 (June 6, 2012): 4935–50. http://dx.doi.org/10.5194/acp-12-4935-2012.
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Abstract. Visibility degradation is a pervasive and urgent environmental problem in China. The occurrence of low visibility events is frequent in the North China Plain, where the aerosol loading is quite high and aerosols are strongly hygroscopic. A parameterization of light extinction (Kex) for low visibilities on hazy days is proposed in this paper, based on visibility, relative humidity (RH), aerosol hygroscopic growth factors and particle number size distributions measured during the Haze in China (HaChi) Project. Observational results show that a high aerosol volume concentration is responsible for low visibility at RH <90%; while for RH >90%, decrease of visibility is mainly influenced by the increase of RH. The parameterization of Kex is developed on the basis of aerosol volume concentrations and RH, taking into accounts the sensitivity of visibility to the two factors and the availability of corresponding data. The extinction coefficients calculated with the parameterization schemes agree well with the directly measured values.
Dissertations / Theses on the topic "Visibilitet"
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Biswas, Debmalya Benveniste Albert. "Visibilité en systèmes hiérarchiques Visibility in hierarchical systems /." Rennes : [s.n.], 2009. ftp://ftp.irisa.fr/techreports/theses/2009/biswas.pdf.
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Olsson, Eriksson Linus. "Fornborgen och landskapet : En GIS-baserad visibilitetsanalys av relationen mellan bronsålderns fornborgar och dess landskapsrum." Thesis, Uppsala universitet, Arkeologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-413347.
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For the better part of the 20th century, Swedish hillforts were seen strictly as an iron age phenomenon, and it was not until the mid-1980’s that we had reliable evidence that hillforts were already constructed during the Bronze Age. At the same time, archaeologists were moving away from the old militaristic studies to make way for studies based on the symbolical aspects of these monumental structures. Unfortunately, as we reached the end of the millennium, the general archaeological interest for hillforts dramatically dropped, causing hillfort research to miss out on the digital revolution as the new GIS technology cemented itself as a powerful tool in archaeological research. Today, nine hillforts have received a Bronze Age dating, why it is now possible to preform high quality research on the material without having to include structures from other time periods. However, the lack of GIS-based hillfort research leads us to seek inspiration from British hillfort research where the incorporation of GIS-methodology has proven successful in analyzing the relationship between hillforts and their landscapes. The purpose of this paper is therefore to continue investigating the symbolical aspects of the Swedish Bronze Age hillforts by investigating how GIS can help us locate and understand visual relationship between hillfort morphology and the surrounding landscape. The analysis is based on a viewshed-method developed by Jessica Murray in her attempts to analyze if hillforts were constructed to visually relate to certain features of the landscape or the local topography. The resulting viewshed rasters are interpreted from a phenomenological theoretical standpoint since phenomenological aspects give us the possibility to bridge the gap between digital and analogue sensory analysis. The results show that viewshed-based analyses can be successfully complimented by phenomenological theory and that the method has successfully replicated previously observed landscape relationships while also exposing previously unknown visual relationships.
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De, Lima Neto Avelino. "Le cinéma en tant qu'éducation du regard." Thesis, Montpellier 3, 2015. http://www.theses.fr/2015MON30036.
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Ce n'est que parce que nous existons corporellement que la connaissance est possible. Cependant, dans l'expérience éducative, la puissance épistémique du corps est négligée, ce qui tend à l'appauvrissement des registres de l'intelligible. Cette thèse propose alors de se pencher sur ce problème en diagonal : à partir d'une Philosophie du Corps et de l'Image qui, dans la modernité - comprise non pas en tant que périodisation, mais comme une qualification de nos négociations entre le réel et l'intelligible -, a dévoilé d'autres façons de faire et d'effectuer ces registres. Ces moyens sont explorés à travers l'ouverture apportée par les travaux de Merleau-Ponty et Foucault, illustratifs de ce nouveau commerce du réel. Pour aborder le problème, la visibilité et le mouvement du corps dans le cinéma ont été pris comme objet d'analyse. Ce dernier est analysé à travers un corpus de films dont les intrigues se concentrent sur l'éducation formelle et, plus ou moins intensément, demandent l'engagement des personnages et des spectateurs dans une performance visuelle. Pour s'approcher de cet objet, les questions suivantes ont été posées : comment le phénomène de l'éducation est montré par le cinéma ? Quel corps y est montré ? Comment les spectateurs peuvent-ils le voir ? À partir de l'examen du corpus filmique et de l'articulation théorique entre les philosophies de Merleau-Ponty et de Foucault, il est ainsi devenu possible d'affirmer la thèse du cinéma en tant qu'éducation du regard. L'objectif général de cette thèse est de dévoiler le potentiel éducatif de l'expérience filmique, qui fournit un autre régime d'intelligibilité pour l'éducation. Dans ce régime, le corps en tant qu'opérateur visuel élargit la capacité de compréhension du réel. Pour atteindre cet objectif, le travail s'est composé en trois chapitres. Dans le premier, nous abordons l'approche méthodologique : tout d'abord, la pertinence de l'articulation théorique entre les deux philosophes a été définie ; puis, l'utilisation des images comme langage indirect qui participe à la description de la réalité a été expliquée ; une présentation du corpus filmique a suivi cette étape ; finalement, les critères du choix des films ont été décrits et ont donné lieu à une explicitation de l'instrument adopté pour l'analyse de l'objet. Le deuxième chapitre débat, au préalable, de l'incapacité de l'Occident à formuler discursivement le réel. Ensuite, en même temps que la visualisation des scènes de films, nous explorons la contribution de Merleau-Ponty et Foucault sur la performance visuelle, déclenchée par les images. Dans le troisième, les implications de l'éducation du regard faculté favorisées par l'expérience filmique sont développées, en particulier, en ce qui concerne la nouvelle place accordée à la visibilité dans la formulation du réel. Ces développements permettent, de ce fait, la construction d'un script favorisant la visibilité de l'éducation. C'est ainsi qu'en prenant le regard en tant qu'expérience de la connaissance, ce script se propose de montrer d'autres façons d'être, de voir, de penser et de sentir le monde, en reconfigurant, par conséquent, des protocoles épistémiques et de subjectivation présents dans le contexte éducatifThe knowledge is only possible due to we exist bodily. However, during the educational experience, the epistemic potency of the body is neglected, declining the registers of the intelligibility. The current thesis approaches that problem obliquely: from a body and image philosophy which has revealed other ways of doing those registers in the modernity – understood not as period itself, but as a qualification for the negotiations between the real and the intelligible. The referred ways are explored through Merleau-Ponty's and Michel Foucault's works, which offer a spectrum about that new negotiation of the real. In order to approach the studied problem, the visibility and the human body motricity in the cinema are taken as analysis object. The mentioned objects have been analyzed through a corpus of movies of which plots are centered at the formal education and they require from the characters and the spectators engagement into a visual performance. Aiming to approach the object, it is questioned how the Education phenomenon is represented by the cinema; how the body is exposed and how spectators can see it. Analyzing the corpus and articulating Merleau-Ponty's and Michel Foucault's theories, it has been possible to state the following thesis: the cinema as an education of the gaze. The general objective of this study is to reveal the educational potency of the filmic experience, which provides a new path of intelligibility for Education. In that sense, the body as a visual operator widens the capacity of understanding the real. The current work is divided in three chapters. The first one brings the methodological approach: it is pointed how the theoretical articulation is properly arranged; it explains the method of using the images as indirect language as part of the reality description; the filmic corpus is presented, as well the criteria for the films choices and for the construction of instrument adopted during the object analysis are described. In the second chapter, it is problematized the incapacity of the western society of formulating the real discursively by debating Merleau-Ponty's and Foucault's theoretical contributions about the visual performance displayed on the images while the films are watched and analyzed. In the third chapter, the implications of the education of the gaze provided by the cinema are developed, mainly concerning about the place attributed to the visibility during the formulation of the real. Finally, paths are designed for the construction of another approach for the visibility in Education. Assuming the gaze as an experience of knowledge, this study aims to present other ways of being, seeing, thinking and feeling the world. Therefore, it is a proposal to reset the epistemic and subjectification patterns at the educational context
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Joulan, Karine. "Estimation de la visibilité routière du point de vue du conducteur : contribution aux aides à la conduite." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1014.
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Les aides à la conduite sont des systèmes qui aident le conducteur à mieux appréhender la tâche de conduite en situation difficile. Parmi les différents capteurs qu'utilisent ces ADAS, des caméras sont embarquées et délivrent des images de la scène routière qui sont traitées et analysées de manière à informer le conducteur des dangers éventuels ou enclencher des systèmes d'urgence. Les caméras issues de ces ADAS capturent l'environnement routier d'une manière qui est loin d'être représentative de la perception qu'aurait un conducteur. Une des conséquences éventuelles est que ces ADAS soient contre-productives en déclenchant inopinément des systèmes d'alerte et d'action à l'encontre du conducteur. De manière à remplir complétement la vocation de ces ADAS, il est primordial de disposer d'une carte de la perception de l'environnement routier du point de vue du conducteur de manière à ajuster l'aide dont il pourrait avoir besoin. Nous proposons d'estimer par traitement d'image, la visibilité routière du point de vue du conducteur en utilisant un algorithme bio-inspiré simulant la sensibilité au contraste de l'œil humain. Dans un premier temps, nous étendons un modèle de CSF (Contrast Sensitivity Function) de manière à prendre en compte des taux de détection cohérents avec la sécurité routière, l'orientation, la couleur et l'âge du conducteur. Dans un second temps, nous modélisons notre modèle de CSF par un filtrage spatial et en calculons la visibilité en chaque pixel de l'image. Nous appliquons cette carte de visibilité sur une carte de contours issue de notre détecteur de contour bio-inspiré. Ainsi, nous considérons les contours des objets routiers présents dans l'image plutôt que leurs caractéristiques de manière à éviter toute hypothèse. Ces contours sont associés à un niveau de visibilité indiquant s'ils sont visibles ou pas par l'observateur. Nous validons le procédé en le comparant à des performances visuelles d'observateurs, en condition de laboratoire, pour une détection de cible et en situation de conduite simulée en conduite de nuit. Dans un deuxième temps, nous associons ces niveaux de visibilité en deux unités facilement compréhensibles pour des ADAS: un temps de réaction et une distance perçue. En premier lieu, nous proposons un modèle d'estimation du temps de perception du conducteur en fonction de la visibilité en nous inspirant de la loi de Piéron sur des données expérimentales de détection de cibles sur des images routières de synthèse pour une certaine densité de brouillard de jour. Les études ont montré que les conducteurs auraient tendance à se rapprocher du véhicule devant eux de manière à ne pas les perdre de vue. Ce constat nous renseigne sur le fait que le conducteur ne dispose pas suffisamment de visibilité à ses yeux dans cette configuration de conduite. Nous montrons l'intérêt des méthodes de restauration d'images en termes de gain de temps de réaction et de performance visuelle comme le taux de détection du véhicule devant lui. Dans un second temps, nous estimons une distance par rapport au véhicule précédent du point de vue du conducteur en nous inspirant de la détection des feux arrière du véhicule situé devant le conducteur. Les résultats ont montré que les conducteurs estimaient mal les distances sur obstacles lointains en comparaison des aides à la conduite basées sur des imageurs optique, radar ou lidar pour une conduite de nuit. D'après ce constat, les ADAS jouent un rôle fondamental pour prévenir le conducteur de sa conduite inadaptée. Enfin, nous délimitons les limites de nos modèles de CSF et de visibilité et proposons plusieurs perspectives. Pour des applications routières, une des perspectives qui a été concrétisée partiellement est l'évaluation objective des systèmes d'éclairage par notre modèle de visibilité et sa cohérence avec une expertise subjectiveThe driver assistance systems are systems that help the driver to better understand the plight driving task. Among the various sensors used by these ADAS, cameras are shipped and deliver images of the road scene which are processed and analyzed to inform the driver of potential hazards or switch of emergency systems. The cameras capture from these ADAS is far from representative of perception would have a driver. One of the possible consequences is that these ADAS can be counter productive in triggering warning and action against the driver. In order to completely fulfill the objectives of such ADAS, it is essential to have a map of the perception of the road environment from the perspective of the driver to adjust the help they might need. We propose to estimate by image processing, road visibility from the driver's perspective using a bio-inspired algorithm simulating the contrast sensitivity of the human eye. First, we extend a model of CSF (Contrast Sensitivity Function) to consider coherent detection rate with road safety, orientation, color and age of the driver. In a second step, we model our CSF spatial filtering and calculate the visibility for each pixel of the image. We apply this visibility map on a map of contours of our bio-inspired edge detector. Thus, we consider the contours of the road objects in the image rather than the characteristics in order to avoid assumptions. These contours are associated with a level of visibility as to whether or not they are visible by the observer. We validate the method by comparing it with the visual performance of observers in laboratory conditions for target detection and simulated driving situation in night driving. Secondly, we combine these two levels of visibility in easily understandable units for ADAS: a reaction time and a target distance. First, we propose a model to estimate the driver's reaction time depending on the visibility (inspired by Piéron's law of target detection) with experimental data on road synthetic images for some daylight fog density. Studies have shown that drivers would tend toget closer to the vehicle in front of them in order not to lose sight of them. This observation tells us that the driver does not have enough visibility in that configuration. We show the interest of the image restoration methods in terms of reaction time and gain in visual performance as well as vehicle detection rate. In a second step, we estimate a distance from the point of view of the driver taking inspiration from the detection of the rear lights of the vehicle in front of the driver. The results showed that drivers were bad about the distance evaluation of distant obstacles compared to driving aids based on optical imaging, radar or lidar for night driving. Based on this observation, the ADAS may play a fundamental role in preventing the driver from his inappropriate behavior. Finally, we outline the limits of our models CSF and visibility and offer several perspectives for road applications, one of which was the objective evaluation of lighting systems by our model of visibility and consistency with a subjective expertise
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Bessadok, Firas. "Modèle pour l’évaluation et l’amélioration de la lisibilité d’une carte géographique." Thesis, Paris Est, 2015. http://www.theses.fr/2015PEST1005/document.
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Dans cette thèse, nous nous intéressons à la conception et à la visualisation de cartes géographiques personnalisées en passant par des étapes d'évaluation et d'amélioration automatiques de ces cartes.Dans la plupart des outils cartographiques récents (comme le GeoPortail ou Google Maps) il est possible pour l'utilisateur de construire lui-même une carte adaptée à ses besoins à partir des couches de données pouvant provenir de sources hétérogènes. Cependant, la manipulation et l'édition de cartes par des utilisateurs non-experts peuvent engendrer des erreurs de représentation qui entravent la compréhension de cette carte par ses lecteurs.Notre recherche concerne donc l'amélioration de la représentation de cartes créées par des utilisateurs non-experts. Etant donné que la lisibilité d'une carte passe par la visibilité des objets qui la composent, dans ce travail nous proposons un modèle qui évalue la visibilité de ces objets cartographiques en se fondant sur un système de cinq indicateurs de visibilité dont les valeurs varient entre 0 et 1. Ce modèle prévoit ensuite quatre méthodes de modification de la symbolisation des objets cartographiques, qui seront utilisées afin d'améliorer leur visibilité. Entre l'étape d'évaluation et celle de l'amélioration de la visibilité de ces objets, une phase d'analyse est mise en place dans le but de décider si une amélioration de la symbolisation des objets cartographiques est nécessaire, et si oui, choisir lesquelles parmi ces modifications pourront être réalisées.Ce modèle prendra comme entrée une carte géographique sous la forme (1) d'un ensemble de couches composées chacune d'objets cartographiques, (2) et de la légende utilisée pour la symbolisation de ces objets cartographiques. Il donnera en sortie (1) un ensemble de fichiers xml qui contiennent les valeurs calculés des indicateurs de visibilité, (2) une carte finale avec une nouvelle symbolisation qui améliore la valeur des indicateurs de visibilité. Ce processus offre alors aux lecteurs une carte plus lisible.Ce travail est ensuite conclu par deux tests qui valident (1) les hypothèses de base, (2) la correspondance effective entre les valeurs des indicateurs et le ressenti réel des lecteurs de cartes, et qui tentent (3) de dégager des seuils de visibilité qui seront utilisés dans le but de corriger et affiner ultérieurement les algorithmes écrits lors de cette thèseIn this thesis, we focus on the design and visualization of custom geographic maps by executing different stages of automatic evaluation and improvement of these maps.In the most recent mapping tools (such as Google Maps or GeoPortail) it is possible for the user to build himself a map that suits his needs using different layers of data which can come from several sources. However, the manipulation and edition of maps by non-experts can cause errors in the representation that affects the understanding of this map by its readers.That's why our research focus on improving the representation of maps created by non-expert users. Since the readability of a map depends on the visibility of objects that compose this map, in this work we propose a model which assesses the visibility of cartographic objects based on a system of five indicators of visibility (values between 0 and 1). This model then provides four methods for modifying the objects symbolization of this map, which will be used to improve their visibility. Between the evaluation and the improvement of the visibility of these objects, an analysis step is performed in order to decide whether an improvement in the symbolization is required, and if so, which of these four methods should be executed.This model takes as input a map in the form of (1) a set of layers each consisting of cartographic objects, (2) and the legend used to represent these cartographic objects. It will generate as an output (1) a set of XML files that contain the values calculated by the indicators of visibility, (2) a final map with a new representation that improve the value of these indicators of visibility. This process then provides readers with a more readable map.This work is then concluded by two tests that validate (1) our basic assumptions, (2) the actual correspondence between the indicator values and the real feel of the map readers, and finally trying (3) to determine visibility thresholds that can be used later in order to correct and refine the algorithms that are proposed in this thesis
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Dey, Sanjoy. "Structural properties of visibility and weak visibility graphs." Virtual Press, 1997. http://liblink.bsu.edu/uhtbin/catkey/1048394.
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Given a finite set S of n nonintersecting line segments with no three end points collinear, the segment end point visibility graph is defined as the graph whose vertices are the end points of the line segments in S and two vertices are adjacent if the straight line segment joining two end points does not intersect any element of S, or if they are end points of the same segment. Segment end point visibility graphs have a wide variety of applications in VLSI circuit design, study of art gallery problems, and other areas of computational geometry. This thesis contains a survey of the important results that are currently known regarding the characterization of these graphs. Also a weak visibility dual of a segment end point visibility graph is defined and some structural properties of such graphs are presented. Some open problems and questions related to the characterization of weak visibility graphs are also discussed.Department of Mathematical Sciences
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Hussein, Hasna. "Télévision et transformation des imaginaires et des rôles de genre dans les sociétés arabes : programmation et réception des chaînes satellitaires au liban, en egypte, en tunisie, au qatar et aux emirats arabes unis." Thesis, Bordeaux 2, 2013. http://www.theses.fr/2013BOR22070.
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Cette thèse montre, par l’étude de la nouvelle visibilité des femmes dans les programmes des chaînes satellitaires, comment la télévision contribue à l’hybridation socioculturelle, à l’acculturation et à l’incorporation sélective des valeurs et des normes de genre. Il s’agit dans un premier temps d’un travail de contextualisation de la complexité des représentations des femmes à la télévision depuis la diffusion satellitaire, à partir d’une étude comparative des scènes télévisuelles entre cinq pays arabes: le Liban, la Tunisie, l’Égypte, le Qatar et les Émirats-Arabes-Unis. Dans un second temps, l’analyse de 77 entretiens avec des présentatrices des 18 chaînes satellitaires dans les pays ciblés, se focalise sur les processus de féminisation et de professionnalisation du métier de présentatrice, qui sont des facteurs majeurs non seulement dans la construction de la diversité des images et des modèles féminins véhiculés par la télévision, mais aussi dans les transformations de la perception des femmes et de leurs rôles dans la société. À travers cette diversité ambivalente, voire même contradictoire, la télévision contribue à introduire de l’incohérence et de l’hybridité stimulant l’imagination des téléspectateurs, particulièrement sur le plan de leur conception des rôles des hommes et des femmes. C’est précisément sur cette dimension que s’étudie la troisième partie de la thèse. Celle-ci s’appuie sur les études des expériences de réceptions auprès de 66 participants et participantes à 16 séances de focus groups réalisées essentiellement au Liban. Ce corpus avec lequel nous interrogeons les rôles et les imaginaires de genre est un moyen privilégié pour saisir les enjeux de la globalisation télévisuelle et de la « modernité » dans les sociétés arabes contemporainesThe new visibility of women on Satellite TV Channels is the product of transformations of the media landscape. The explosion of Arab Satellite Channels (ASC) since 1990 have allowed women in the Arab World to be present in a wide range of media professions, particularly TV anchor. Today, we can notice a diversity of women anchor’s figures after the emergence of many specialized and generalized satellite channels. Indeed, women are present in news, social and political talk shows, sport, religion, fashion, food, and reporting. Some of those figures outcome of political, social and economic logic of specific national context (Egypt, Tunisia and Saudi Arabia), while others are the result of professionalism competition of channels and subjective experience of women anchors-as new actors on ASC- in transnational context (Lebanon, Qatar and Dubai). A key factor in this new configuration of women’s visibility on Arab media landscape is the transgressing of the traditional male domain. Indeed, many women anchors proved impressive strides in debate TV programs and reporting. Based on their professional experience, high education and talents, they proved to be equal to men and sometimes more effective and influential. Women anchor’s new visibility in ASC affects women’s professional situation, shapes gender relationships, women’s participation in the public sphere, and family’s perceptions and retention of women into Arab Societies
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Crassin, Cyril. "GigaVoxels : un pipeline de rendu basé Voxel pour l'exploration efficace de scènes larges et détaillées." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00650161.
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Dans cette thèse, nous présentons une nouvelle approche efficace pour le rendu de scènes vastes et d'objets détaillés en temps réel. Notre approche est basée sur une nouvelle représentation pré-filtrée et volumique de la géométrie et un lancer de cone basé-voxel qui permet un rendu précis et haute performance avec une haute qualité de filtrage de géométries très détaillées. Afin de faire de cette représentation voxel une primitive de rendu standard pour le temps-réel, nous proposons une nouvelle approche basée sur les GPUs conçus entièrement pour passer à l'échelle et supporter ainsi le rendu des volumes de données très volumineux. Notre système permet d'atteindre des performances de rendu en temps réel pour plusieurs milliards de voxels. Notre structure de données exploite le fait que dans les scènes CG, les détails sont souvent concentrées sur l'interface entre l'espace libre et des grappes de densité et montre que les modèles volumétriques pourrait devenir une alternative intéressante en tant que rendu primitif pour les applications temps réel. Dans cet esprit, nous permettons à un compromis entre qualité et performances et exploitons la cohérence temporelle. Notre solution est basée sur une représentation hiérarchiques des données adaptées en fonction de la vue actuelle et les informations d'occlusion, couplé à un algorithme de rendu par lancer de rayons efficace. Nous introduisons un mécanisme de cache pour le GPU offrant une pagination très efficace de données dans la mémoire vidéo et mis en œuvre comme un processus data-parallel très efficace. Ce cache est couplé avec un pipeline de production de données capable de charger dynamiquement des données à partir de la mémoire centrale, ou de produire des voxels directement sur le GPU. Un élément clé de notre méthode est de guider la production des données et la mise en cache en mémoire vidéo directement à partir de demandes de données et d'informations d'utilisation émises directement lors du rendu. Nous démontrons notre approche avec plusieurs applications. Nous montrons aussi comment notre modèle géométrique pré-filtré et notre lancer de cones approximé peuvent être utilisés pour calculer très efficacement divers effets de flou ainsi d'éclairage indirect en temps réel.
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Perrin, Jean-Luc. "Evaluer la lecture électronique : une approche multidimensionnelle." Thesis, Paris 8, 2015. http://www.theses.fr/2015PA080024/document.
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Le but de cette thèse est de proposer des méthodes pour pouvoir évaluer les performances durant la lecture sur support électronique, afin de pouvoir comparer plusieurs dispositifs d’affichage. Des tests permettant d’effectuer des mesures de performances de manière répétée ont été construits pour chacune des dimensions classiques de la lecture électronique : visibilité (test de caractérisation psychométrique), lisibilité (identification de lettres, décision lexicale, vitesse de lecture de phrases générées automatiquement) et compréhension (mesure de la mémorisation et des inférences pendant la lecture de textes générés automatiquement). Au-delà de ces dimensions classiques, nous avons réalisé deux études pour examiner le lien entre la lecture sur support électronique et la posture des utilisateurs. La première montre qu’une posture pouvant être engendrée par l’utilisation de tablette (inclinaison latérale de tête) n’affecte pas la performance de lecture. La seconde étude posturale montre l’effet de la difficulté d’un texte sur la distance à l’écran pendant l’utilisation d’une liseuse électronique ; les sujets se rapprochent de l’écran lorsque leur niveau d’attention augmente. L’ensemble des tests développés et une mesure de posture ont été regroupés dans une batterie de tests visant à quantifier la performance de lecture associée à un support donné ; l’indicateur résultant étant appelé « Quotient de Lecture Electronique ». Cet indicateur a été calculé pour un écran d’ordinateur, un vidéoprojecteur et une tablette. Les résultats expérimentaux montrent que les tests permettent de comparer les supports, notamment en termes de visibilité et de lisibilitéThe aim of this thesis is to offer methods of evaluating performance during digital reading, in order to be able to compare different display devices. Tests were developed allowing repeated measurements for classic measures of digital reading: visibility (psychometric characterization), readability (letter identification, lexical decision, reading speed on automatically generated sentences) and comprehension (memorization and inference measurement while reading automatically generated texts). Beyond these classic dimensions, we also conducted two studies in order to examine the link between digital reading and the posture adopted by the device users. The first revealed that a tablet-use-related posture (lateral head tilt) does not affect reading performance. The second postural study demonstrated the effect of text difficulty on eye-screen distance during the use of an e-reader. Subjects approached the screen as their attentional level increased. The constructed tests and a postural measure were aggregated into a battery of tests permitting the evaluation of reading performance associated with a device. The resulting indicator is called the “Digital Reading Quotient”. This indicator has been computed for a computer screen, a projector and a tablet. The experimental results show that these tests can be used in order to compare different devices, especially in terms of visibility and readability
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Hayek, Anne-sophie. "Quand la coopération flanche : l’effet des notes sur des indicateurs de la coopération." Thesis, Paris 10, 2014. http://www.theses.fr/2014PA100061/document.
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Principalement utilisées pour évaluer la performance et rendre compte de la réussite scolaire des individus, les notes sont indicatrices de succès ou d’échec, mais aussi de la valeur comparative des individus. Dans cette thèse nous proposons de tester l’effet des notes lorsqu’utilisées dans des contextes spécifiques de coopération. En effet, si les notes et la comparaison sociale sont pratique courante, les étudiants sont souvent amenés à coopérer en groupe. Cependant, à notre connaissance, point d’études ont testé l’effet des notes sur la coopération; alors que la tendance en milieu éducatif est à l’encouragement des pratiques coopératives. C’est ce que présent les chapitres expérimentaux de cette thèse. Le Chapitre 4 teste l’effet des notes quant à leur capacité à accentuer à la fois visibilité et comparaison sociale. Deux études investiguent l’effet des notes sur un biais motivationnel qui réduit la propension à coopérer: la propension à préférer les informations qui confirment les choix de l’individu. Elles montrent qu’en situation coopérative, les notes accroissent ce biais comparativement à des situations où seule la visibilité individuelle est soulignée, et suggèrent que les notes focalisent les individus sur une comparaison sociale compétitive. Le Chapitre 5 teste l’effet des notes sur les interactions, précisément sur le partage coopératif d’information. Deux études montrent que dans un contexte de travail en groupe coopératif, les notes entravent le bon partage des informations entre individus, et amènent à la rétention d’information. Enfin, le Chapitre 6 teste l’effet des notes sur un autre indicateur de coopération en groupe: la coordination interindividuelle. Il montre que les notes réduisent la coordination inter-individus et les mènent à avoir des comportements de dominance négative entre eux. En somme, les notes entravent la coopération et réduisent les comportements coopératifs entre individus. Nous discutons des implications pour le milieu éducatifWidely used to assess achievement and performance in educational contexts, grades provide a clear indicator of success or failure, particularly in comparison to others. In this respect, we study their impact on specific work contexts requiring cooperation. Indeed, students are often exhorted to cooperate in groups and simultaneously are assessed with grades, which bring a focus on inter-individual comparison. However, to the best of our knowledge, no work has investigated the effects of grades on cooperation, yet a central question given educational trends encouraging cooperative practices, which we propose to explore in the experimental chapters of this thesis. Chapter 4 tests the effect of grades with regards to their capacity to jointly highlight individual visibility and social comparison. It tries to disentangle which of these facets could affect a motivated bias likely to reduce cooperation, namely individuals’ preference for information confirming their own choice. Results show that a graded-cooperative situation increased this preference effect in comparison to other conditions where only individual visibility was manipulated, and moreover increased individuals’ perception of a competitive atmosphere. Chapter 5 tests the effect of grades on direct cooperative interactions, namely on group information sharing. Results show that grades hindered information exchange between individuals, leading them to withhold crucial task-information. Finally, Chapter 6 tests the effects of grades on another indicator of group cooperation, namely inter-individual coordination. Results indicate that showcasing grades at the onset of a cooperative task necessitating inter-individual coordination decreased group performance and elicited more negative dominant behaviours amongst participants. Together these results provide evidence that grades hamper group cooperation. We conclude by discussing implications for the practice of grading in Education
Books on the topic "Visibilitet"
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Harris, James L., d. 2009, ed. Forensic visibility. Tucson, Ariz: Lawyers & Judges Pub. Company, 2012.
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Vind, Anna, Iben Damgaard, Kirsten Busch Nielsen, and Sven Rune Havsteen, eds. In-visibility. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.
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Philip, Kotler, and Stoller Martin R, eds. High visibility. London: Heinemann Professional Publishing, 1990.
Find full textBook chapters on the topic "Visibilitet"
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Kiefer, Peter, Klaus Stein, and Christoph Schlieder. "Visibility Analysis on the Web Using Co-visibilities and Semantic Networks." In Semantics, Web and Mining, 34–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11908678_3.
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Solten, Therese B. "Hymn and Ending. The Scope of the Eyes of Faith in Grundtvig’s Hymn “Velkommen igien Guds engle smaa”." In In-visibility, 105–20. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.105.
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Helmer, Christine. "To Refer or Not to Refer, That is the Question." In In-visibility, 121–40. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.121.
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Grøn, Arne. "Phenomenology of In-visibility." In In-visibility, 13–32. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.13.
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Raunio, Antti. "Inner and Outer Man in Luther’s Thought." In In-visibility, 141–58. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.141.
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Vind, Anna. "Hoc est, tua iusticia non est visibilis, non est sensibilis. Glaube und christliches Leben bei Luther – mit einem kurzen Ausblick auf die lutherische Tradition in Dänemar." In In-visibility, 159–76. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.159.
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Bühler, Pierre. "Homo absconditus und homo revelatus. Un-sichtbarkeit als Herausforderung für die theologische Anthropologie." In In-visibility, 177–92. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.177.
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Boulnois, Olivier. "Beyond Image: Reading, Meditating, Venerating – Three Uses of Image. Luther and the Middle Ages." In In-visibility, 225–44. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.225.
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Korsch, Dietrich. "Verborgenheit macht sichtbar. Ein Gedanke zur Ikonologie im Anschluss an Martin Luther." In In-visibility, 281–96. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.281.
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Christoffersen, Svein Aage. "Homo invisibilis." In In-visibility, 297–318. Göttingen: Vandenhoeck & Ruprecht, 2020. http://dx.doi.org/10.13109/9783666550713.297.
Full textConference papers on the topic "Visibilitet"
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Nikolayev, Anatolyi N., Boris P. Abramovsky, Shepa D. Fridman, and Alexander N. Krasa. "Nitrogen oxides contents in the city of Moscow at different height levels." In Air Pollution and Visibility Measurements. SPIE, 1995. http://dx.doi.org/10.1117/12.221023.
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Pujadas, Manuel, J. Alberdi, E. Gamero, and J. Teres. "DICOSPEC: a redesign of the original COSPEC V remote sensor." In Air Pollution and Visibility Measurements. SPIE, 1995. http://dx.doi.org/10.1117/12.221025.
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Pierrard, Philippe, Jerome Prieur, J. L. Gaumet, J. C. Heinrich, and M. Cluzeau. "Atmospheric extinction coefficient and cloud base height determination by using a single-pulse eye-safe lidar." In Air Pollution and Visibility Measurements. SPIE, 1995. http://dx.doi.org/10.1117/12.221055.
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Werner, Christian, and Ulrich G. Oppel. "Lidar multiple scattering as a tool for cloud microphysical parameters." In Air Pollution and Visibility Measurements. SPIE, 1995. http://dx.doi.org/10.1117/12.221065.
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Grasso, V., F. Neri, and E. Fucile. "Simple angle-resolved light scattering photometer using a photodiode array." In Air Pollution and Visibility Measurements. SPIE, 1995. http://dx.doi.org/10.1117/12.221081.
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Yun, Sang-Hyuk, Hyo-Sung Ahn, Sun-Ju Park, Ok-Chul Jung, and Dae-Won Chung. "Ground Antenna Scheduling Algorithm for Multi-Satellite Tracking." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48042.
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In this paper, we address the optimal ground antenna scheduling problem for multiple satellites when multiple satellites have visibility conflicts at a ground station. Visibility conflict occurs when multiple satellites have either overlapping visibilities at a ground station or difference with time of loss of signal (LOS) of a satellite and time of acquisition of signal (AOS) of another satellite is less than reconfiguration time of ground station. Each satellite has a priority value that is a weight function with various factors. Multi-antenna scheduling (MAS) algorithm 1 and Multi-antenna scheduling (MAS) algorithm 2 are proposed to find the optimal schedule of multi-antenna at a ground station using pre-assigned priority values of satellites. We use the depth first search (DFS) method to search the optimal schedule in MAS algorithm 1 and MAS algorithm 2. Through the simulations, we confirm the efficiency of these algorithms by comparing with greedy algorithm.
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Wachs, Megan, Jung Il Choi, Jung Woo Lee, Kannan Srinivasan, Zhe Chen, Mayank Jain, and Philip Levis. "Visibility." In the 5th international conference. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1322263.1322271.
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NouriBygi, Mojtaba, and Mohammad Ghodsi. "3D Visibility and Partial Visibility Complex." In 2007 International Conference on Computational Science and its Applications (ICCSA 2007). IEEE, 2007. http://dx.doi.org/10.1109/iccsa.2007.1.
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NouriBygi, Mojtaba, and Mohammad Ghodsi. "3D Visibility and Partial Visibility Complex." In 2007 International Conference on Computational Science and its Applications (ICCSA 2007). IEEE, 2007. http://dx.doi.org/10.1109/iccsa.2007.82.
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Etherington, Timothy J. "Eliminating visibility problems from low visibility operations." In 2015 IEEE/AIAA 34th Digital Avionics Systems Conference (DASC). IEEE, 2015. http://dx.doi.org/10.1109/dasc.2015.7311465.
Full textReports on the topic "Visibilitet"
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McKittrick, Susan. Speakerfile's Expert Visibility Platform. Boston, MA: Patricia Seybold Group, January 2013. http://dx.doi.org/10.1571/pp01-10-13cc.
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Marshak, David. End-to-Edge Visibility. Boston, MA: Patricia Seybold Group, January 2002. http://dx.doi.org/10.1571/psgp1-26-02cc.
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Wyman, Chris. Novel Interactive Visibility Techniques. Fort Belvoir, VA: Defense Technical Information Center, February 2012. http://dx.doi.org/10.21236/ada557856.
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Maffione, Robert A. Distance Visibility Algorithm (DiVA) Transition. Fort Belvoir, VA: Defense Technical Information Center, August 2001. http://dx.doi.org/10.21236/ada627925.
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Maffione, Robert A. Distance Visibility Algorithm (DiVA) Transition. Fort Belvoir, VA: Defense Technical Information Center, September 2002. http://dx.doi.org/10.21236/ada626517.
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Collins, Belinda L., and Peter J. Goodin. Visibility of exit directional indicators. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.4532.
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Kernodle, Joseph W. Nomex Supply Chain Total Asset Visibility. Fort Belvoir, VA: Defense Technical Information Center, January 2006. http://dx.doi.org/10.21236/ada444053.
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Dyer, Rosemary M., and Gerald L. Freeman. Rule-Based Systems for Visibility Forecasts. Fort Belvoir, VA: Defense Technical Information Center, April 1989. http://dx.doi.org/10.21236/ada214622.
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Morris, Kristen D. Luminosity: High Visibility Apparel for Runners. Ames: Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/itaa_proceedings-180814-231.
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Seybold, Patricia. HP Provides Cross-Channel Inventory Visibility. Boston, MA: Patricia Seybold Group, July 2004. http://dx.doi.org/10.1571/cs7-1-04cc.
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