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Дисертації з теми "Visual model"

Автор: Grafiati

Опубліковано: 28 травня 2022

Оновлено: 31 липня 2025

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1

Barron-Gonzalez, Hector. "Cognitive model for visual SLAM." Thesis, University of Sheffield, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.575461.

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In mobile robotics, visual perception in unknown environments consists mainly of two tasks: generation of a map and localization of the agent within it, using images as input. This problem is commonly called Visual Simultaneous Localization and Mapping ( Visual SLA M). This project aims of increasing the capacities of spatial reasoning in robotics systems based on cognitive vision. Baycsian formulation of visual mapping is extended to consider geometric properties for increasing of scene understand- ing. In this search, this work presents a framework that covers the computa- tional and algorit

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2

Chilukamari, Jayachandra. "A computational model of visual attention." Thesis, Robert Gordon University, 2017. http://hdl.handle.net/10059/2443.

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Visual attention is a process by which the Human Visual System (HVS) selects most important information from a scene. Visual attention models are computational or mathematical models developed to predict this information. The performance of the state-of-the-art visual attention models is limited in terms of prediction accuracy and computational complexity. In spite of significant amount of active research in this area, modelling visual attention is still an open research challenge. This thesis proposes a novel computational model of visual attention that achieves higher prediction accuracy wit

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3

Khan, Tamim Ahmed. "Model-based testing using visual contracts." Thesis, University of Leicester, 2012. http://hdl.handle.net/2381/27571.

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Web services only expose interface level information, abstracting away implementation details. Testing is a time consuming and resource-intensive activity. Therefore, it is important to minimize the set of test cases executed without compromising quality. Since white-box testing techniques and traditional structural coverage criteria require access to code, we require a model-based approach for web service testing. Testing relies on oracles to provide expected outcomes for test cases and, if implemented manually, they depend on testers’ understanding of functional requirements to decide the co

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4

De, Biswas Kaustuv Kanti. "A computational model of visual interpretation." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35129.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2006.<br>Includes bibliographical references (leaves 48-50).<br>From the very early phases of design conception, designers use sketches as a powerful design tool. Sketches are however ambiguous. Meanings are associated on fly as the designer 'comes up' with certain ideas while working with it. There is no hierarchy in a sketch. In fact 'structure' is established only after meanings are applied to the sketch. However even in such structurally and conceptually fluid territory, the designer solves most of his design prob

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5

Cisneros, Marco Antonio Perez. "Intelligent model structures in visual servoing." Thesis, University of Manchester, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682243.

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This thesis focuses on visual servoing (VS) control systems, particularly on image-based visual servoing (IBVS) control structures. In IBVS, the error signal is computed in the image plane and the regulation commands are generated with respect to such error by means of a visual Jacobian. The main design challenge is the high latency of the visual sensor which affects the overall performance and limits the design. The primary objective is to develop a complete framework for simulation and real-time experimentation of VS schemes. One commercial CCD camera is attached to the TQ MA2000 robotic man

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6

Bayerl, Pierre. "A model of visual motion perception." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:289-vts-56293.

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7

Blais, Bruno. "Model-based visual inspection of hybrid circuits." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63928.

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8

Gilja, Vikash. "Learning and applying model-based visual context." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/33139.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.<br>Includes bibliographical references (p. 53).<br>I believe that context's ability to reduce the ambiguity of an input signal makes it a vital constraint for understanding the real world. I specifically examine the role of context in vision and how a model-based approach can aid visual search and recognition. Through the implementation of a system capable of learning visual context models from an image database, I demonstrate the utility of the model-based approach. The system

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9

Lee, KangWoo. "Computational model of visual attention : integrative approach." Thesis, University of Sussex, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289231.

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10

Hesam, Shariati Nastaran. "A functional model for primary visual cortex." Thesis, The University of Sydney, 2012. http://hdl.handle.net/2123/8753.

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Анотація:

Many neurons in mammalian primary visual cortex have properties such as sharp tuning for contour orientation, strong selectivity for motion direction, and insensitivity to stimulus polarity, that are not shared with their sub-cortical counterparts. Successful models have been developed for a number of these properties but in one case, direction selectivity, there is no consensus about underlying mechanisms. This thesis describes a model that accounts for many of the empirical observations concerning direction selectivity. The model comprises a single column of cat primary visual cortex and a s

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11

Ibrahim, Nurulhuda. "Persuasive visual design model for website design." Thesis, Ibrahim, Nurulhuda (2018) Persuasive visual design model for website design. PhD thesis, Murdoch University, 2018. https://researchrepository.murdoch.edu.au/id/eprint/42354/.

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Анотація:

This research investigates the possibility of influencing users' motivation with visual persuasion. Visual persuasion is identified as the design triggers that affect users’ first impression, which is seen as the conceptualisation of motivation. While past research studied the effect of web design towards users’ motivation, not many are looking into the persuasive value of the visual design itself. It is foreseen that visual persuasion helps to produce a more persuasive website and consequently, has an impact on web users' first impression of the website. Once motivation is positively influenc

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12

Montobbio, Noemi <1992&gt. "A metric model of the visual cortex." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amsdottorato.unibo.it/9101/1/montobbio_noemi_tesi.pdf.

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The purpose of this thesis is the development of a model for the geometry of the connectivity of the primary visual cortex (V1), by means of functional analysis tools on metric measure spaces. The metric structure proposed to describe the internal connections of V1 implements a notion of correlation between neurons, based on their feature selectivity: this is expressed through a connectivity kernel that is directly induced by the local feature analysis performed by the cells. Such kernel carries a geometrical structure consistent with the well-known properties of long-range horizontal connecti

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13

Ponsa, Mussarra Daniel. "Model-Based Visual Localisation Of Contours And Vehicles." Doctoral thesis, Universitat Autònoma de Barcelona, 2007. http://hdl.handle.net/10803/5782.

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El treball d'aquesta tesi es centra en l'anàlisi de seqüències de vídeo, aplicant tècniques basades en models per extreure'n informació quantitativa. En concret, es realitzen diferents propostes en dues àrees d'aplicació: el seguiment de formes basat en models de contorns, i la detecció i seguiment de vehicles en imatges proveïdes per una camera instal·lada en una plataforma mòbil.<br/>El treball dedicat al seguiment de formes s'enquadra en el paradigma de contorns actius, del qual presentem una revisió de les diferents propostes existents. En primer lloc, mesurem el rendiment obtingut pels a

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14

Neff, Michael Paul. "A visual model for blast waves and fracture." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0019/MQ40747.pdf.

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15

Komodakis, Nikos. "Graphical Model Inference and Learning for Visual Computing." Habilitation à diriger des recherches, Université Paris-Est, 2013. http://tel.archives-ouvertes.fr/tel-00866078.

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Анотація:

Computational vision and image analysis is a multidisciplinary scientiﬁc ﬁeld that aims to make computers "see" in a way that is comparable to human perception. It is currently one of the most challenging research areas in artiﬁcial intelligence. In this regard, the extraction of information from the vast amount of visual data that are available today as well as the exploitation of the resulting information space becomes one of the greatest challenges in our days. To address such a challenge, this thesis describes a very general computational framework that can be used for performing efficient

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16

Gupta, Ashish. "Learning a structured model for visual category recognition." Thesis, University of Surrey, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.600016.

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This thesis deals with the problem of estimating structure in data due to the semantic relations between data. elements and leveraging this information to learn a visual model for category recognition. A visual model consists of dictionary learning, which computes a succinct set of prototypes from training data by partitioning feature space, and feature encoding, which learns a representation of each image as a combination of dictionary elements. Besides 'variations in lighting and pose, a key challenge of classifying a category is intra-category appearance variation. The key idea. in this the

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17

Freeborn, Robert Bruce. "A neural death model of the visual cortex." Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394270.

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18

Talebzadeh, Shahrbabaki Shahrbanoo. "Contribution of colour in guiding visual attention and in a computational model of visual saliency." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT093/document.

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Les études menées dans cette thèse portent sur le rôle de la couleur dans l'attention visuelle. Nous avons tenté de comprendre l'influence de l'information couleur dans les vidéos sur les mouvements oculaire, afin d'intégrer les attributs couleur dans un modèle de saillance visuelle. Pour cela, nous avons analysé différentes caractéristiques des mouvements oculaires d'observateurs regardant librement des vidéos en deux conditions: couleur et niveaux de gris. Nous avons également comparé les régions principales de regard sur des vidéos en couleur avec celles en niveaux de gris. Il est apparu qu

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19

Harrison, David Graham. "A computational dynamical model of human visual cortex for visual search and feature-based attention." Thesis, University of Leeds, 2012. http://etheses.whiterose.ac.uk/4878/.

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Visual attention can be deployed to locations within the visual array (spatial attention), to individual features such as colour and form (feature-based attention), or to entire objects (object-based attention). Objects are composed of features to form a perceived ‘whole’. This compositional object representation reduces the storage demands by avoiding the need to store every type of object experienced. However, this approach exposes a problem of binding these constituent features (e.g. form and colour) into objects. The problem is made explicit in the higher areas of the ventral stream as inf

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20

Lozo, Peter. "Neural theory and model of selective visual attention and 2D shape recognition in visual clutter /." Title page, contents and abstract only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phl925.pdf.

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21

Carter, Michelle L. "The Creative Business Model Canvas: The Business Model Canvas reimagined for visual artists." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/116550/1/Michelle_Carter_Thesis.pdf.

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Recent disruption to the art market has dismantled traditional barriers to entry for new artists and created opportunities for them to reach audiences and develop micro businesses from their practice. However, the majority of Australian artists are untrained in creating profitable business models from their art practice. In order for artists to identify potential opportunities they must rethink their current business strategies and resultant business model. This research project provides a practical tool for use in the business model innovation process by refining Osterwalder and Pigneur’s Bus

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22

Akbarinia, SeyedArash. "Computational model of visual perception: from colour to form." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/457882.

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La idea original de este proyecto fue estudiar la importancia del color en el reconocimiento de objetos. Comenzamos extendiendo la investigación previa sobre nombrar colores y demostrando la viabilidad de capturar términos de color a través de elipsoides. Aunque nuestros resultados superaron el estado-del-arte en dos bases de datos, vimos que los fenómenos de luces metaméricas y constancia de color debían ser tratados antes de cualquier procesamiento de color. Nuestra investigación de pares metaméricas mostró que son infrecuentes en el mundo real. Contrariamente a eso, la iluminación de una es

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23

Schlör, Rainer C. "Symbolic timing diagrams a visual formalism for model verification /." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=963925326.

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24

Tissainayagam, Prithiviraj 1967. "Visual tracking : development, performance evaluation, and motion model switching." Monash University, Dept. of Electrical and Computer Systems Engineering, 2001. http://arrow.monash.edu.au/hdl/1959.1/8944.

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25

Somasundaram, Arunachalam. "A facial animation model for expressive audio-visual speech." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1148973645.

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26

Thillainathan, Niroshan [Verfasser]. "Model Driven Visual Programming for Serious Games / Niroshan Thillainathan." Kassel : Kassel University Press, 2016. http://d-nb.info/1125909552/34.

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27

Harder, Robert W. "A quantitative model for assessing visual simulation software architecture." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10790.

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Анотація:

The U.S. military is the largest single user of simulation in the world, and our visual simulations can be software intensive systems with a lifespan of many years. Managers of these simulations need tools to help them make better decisions at the architectural level. Currently, no such quantitative models with supporting metrics exist for this purpose. There are properties that are held as positive characteristics in visual simulation architectures. Visual simulation architectures can be distinguished from one another based on three characteristics: (1) openness, as defined by the use of stan

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28

Shunmugam, Tamindran. "Adoption of a visual model for temporal database representation." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20875.

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Анотація:

Today, in the world of information technology, conceptual model representation of database schemas is challenging for users both in the Software Development Life Cycle (SDLC) and the Human-Computer Interaction (HCI) domain. The primary way to resolve this issue, in both domains, is to use a model that is concise, interpretable and clear to understand, yet encompasses all of the required information to be able to clearly define the database. A temporal database is understood as a database capable of supporting reasoning of time-based data for e.g.: a temporal database can answer questions such

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29

Chen, Zhijian 1972 Cowan Nelson. "Boundary conditions for a visual working memory capacity model." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/7013.

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Анотація:

Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 26, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dissertation advisor: Dr. Nelson Cowan. Vita. Includes bibliographical references.

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30

Phillips, Vincent C. "A Model Of Visual Recognition Implemented Using Neural Networks." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 1994. https://ro.ecu.edu.au/theses/1472.

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The ability to recognise and classify objects in the environment is an important property of biological vision. It is highly desirable that artificial vision systems also have this ability. This thesis documents research into the use of artificial neural networks to implement a prototype model of visual object recognition. The prototype model, describing a computtional architecture, is derived from relevant physiological and psychological data, and attempts to resolve the use of structural decomposition and invariant feature detection. To validate the research a partial implementation of the m

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31

Peng, Fanke. "Visual Thinking - Beyond Craft Making : Identifying and verifying a visual analysis model (VAM) for craft practice." Thesis, University of Dundee, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.521661.

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32

Danelljan, Martin. "Visual Tracking." Thesis, Linköpings universitet, Datorseende, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105659.

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Visual tracking is a classical computer vision problem with many important applications in areas such as robotics, surveillance and driver assistance. The task is to follow a target in an image sequence. The target can be any object of interest, for example a human, a car or a football. Humans perform accurate visual tracking with little effort, while it remains a difficult computer vision problem. It imposes major challenges, such as appearance changes, occlusions and background clutter. Visual tracking is thus an open research topic, but significant progress has been made in the last few yea

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33

Rudiger, Philipp John Frederic. "Development and encoding of visual statistics in the primary visual cortex." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/25469.

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How do circuits in the mammalian cerebral cortex encode properties of the sensory environment in a way that can drive adaptive behavior? This question is fundamental to neuroscience, but it has been very difficult to approach directly. Various computational and theoretical models can explain a wide range of phenomena observed in the primary visual cortex (V1), including the anatomical organization of its circuits, the development of functional properties like orientation tuning, and behavioral effects like surround modulation. However, so far no model has been able to bridge these levels of de

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34

Piepmeier, Jenelle Armstrong. "A dynamic quasi-newton method for model independent visual servoing." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/18391.

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35

Jie, Li 1976. "An eye movement dependent visual attention model and its application /." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115910.

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In this dissertation, we study the relationship between eye movements and visual attention. Different types of eye movements are investigated including microsaccades, eye fixation, and eye pursuit. First, we demonstrate that microsaccades occur during pursuit and they are linked to covert attention shifts. Employing a psychophysical task that involves covert attention shifts to a peripheral square, we detect if microsaccades occur during eye pursuit, and, if so, whether, and in what way, microsaccades are related to attention shifts. Microsaccades are found to occur during pursuit and they pre

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36

Zhao, Kaiyu. "A Model-driven Visual Analytic Framework for Local Pattern Analysis." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-dissertations/446.

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Анотація:

The ultimate goal of any visual analytic task is to make sense of the data and gain insights. Unfortunately, the process of discovering useful information is becoming more challenging nowadays due to the growing data scale. Particularly, the human cognitive capabilities remain constant whereas the scale and complexity of data are not. Meanwhile, visual analytics largely relies on human analytic in the loop which imposes challenge to traditional human-driven workflow. It is almost impossible to show every aspect of details to the user while diving into local region of the data to explain phenom

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37

Crafts, Lynn Morgan. "Visual management model for scenic byways : setting priorities for change /." Thesis, This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-01242009-063027/.

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38

Berga, Garreta David. "Understanding eye movements: psychophysics and a model of primary visual cortex." Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/667901.

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Анотація:

En aquesta tesi intentaré explicar (1) com movem els ulls, (2) com fer màquines que entenguin la informació visual i executar moviments oculars, i (3) com fer que aquestes màquines entenguin tasques per tal de decidir per aquets moviments oculars. (1) Hem analitzat del comportament dels moviments oculars provocat per les diferències de característiques de baix nivell amb una base de dades d’imatges composada per 230 patrons generats sintèticament. S’han generat un total de 15 tipus d’estímuls (p.e. orientació, brillantor, color, tamany, etc.), amb 7 contrastos per cada categoría de carac

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39

Tavakoli, Fatemeh. "On Visual Attention in Natural Images." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-48256.

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Анотація:

By visual attention process biological and machine vision systems are able to select the most relevant regions from a scene. The relevancy process is achieved either by top-down factors, driven by task, or bottom-up factors, the visual saliency, which distinguish a scene region that are different from its surrounding. During the past 20 years numerous research efforts have aimed to model bottom-up visual saliency with many successful applications in computer vision and robotics.In this thesis we have performed a comparison between a state-of-the-art saliency model and subjective test (human ey

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40

Clavelli, Antonio. "A computational model of eye guidance, searching for text in real scene images." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/283428.

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Анотація:

La cerca d’objectes de text en imatges d’escena reals és un problema obert i una àrea de cerca molt activa la visió per computador. S’han proposat un gran nombre de mètodes basats en l’extensió dels mètodes des de l’anàlisi de documents o inspirat en mètodes de detecció d’objectes. No obstant això, el problema de la cerca d’objectes en imatges d’escena reals segueix sent un problema extremadament difícil a causa de la gran variabilitat en l’aparen¸ca dels objectes. Aquesta tesi es basa en els més recents troballes en la literatura de l’atenció visual, introduint un nou model computaciona

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41

Stevens, Jean-Luc Richard. "Spatiotemporal properties of evoked neural response in the primary visual cortex." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31330.

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Understanding how neurons in the primary visual cortex (V1) of primates respond to visual patterns has been a major focus of research in neuroscience for many decades. Numerous different experimental techniques have been used to provide data about how the spatiotemporal patterns of light projected from the visual environment onto the retina relate to the spatiotemporal patterns of neural activity evoked in the visual cortex, across disparate spatial and temporal scales. However, despite the variety of data sources available (or perhaps because of it), there is still no unified explanation for

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42

Huang, Xiaoke. "USING GRAPH MODELING IN SEVERAL VISUAL ANALYTIC TASKS." Kent State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=kent1467738860.

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43

Lin, Cong. "Non-rigid visual object tracking with statistical learning of appearance model." Thesis, University of Macau, 2017. http://umaclib3.umac.mo/record=b3691900.

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Lim, Clark C. "A driver visual attention model." Thesis, 1997. http://hdl.handle.net/2429/6544.

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This thesis proposes a driver visual information acquisition model which gathers information based on a selective process so events such as distractions can be modelled. This model contains visual information gathering capabilities and visual attention mechanisms based on subjective and objective factors. As the research focused on applicability, the model's framework was designed to be integrated as a component processor within a microscopic computer traffic simulation. The model determines visual attention using two mechanisms: internal and external focusing. The Internal Focusing Mec

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hsu, po-nien, and 徐柏年. "The analytic model of visual enterprise." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/24450633298357225092.

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碩士<br>國立中山大學<br>企業管理學系研究所<br>88<br>Owing to the environmental change, ongoing advances in internets and information technology , the time、space and mass have changed. To respond to the changes, enterprises definitely should follow the trend and make appropriate adaptation. Virtual enterprises are sure to be the organization structure of the future. At present, in order to become virtual enterprises, many enterprises are making adjustment. However, partial reform or adjustment does not correspond to the definition of virtual enterprises. Therefore, only understand the characteristics of virt

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Chen, Yu-Hsiu, and 陳毓琇. "Visual Positioning with 3D Environment Model." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8r97t2.

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碩士<br>國立中央大學<br>通訊工程學系<br>107<br>Indoor localization has been developed for many years. There are many related works like scene recognition and navigation. Existing deep learning positioning methods require a large number of images with the correct camera position. This paper mainly solves the positioning problem by using the 3D map produced from simultaneous localization and mapping (SLAM) algorithm. In our positioning work, we use the projection method to produce training data from the 3D map. This method can produce any place’s image in the 3D map included accurate position information. We

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47

Li, Zhaoping. "Visual Segmentation without Classification in a Model of the Primary Visual Cortex." 1997. http://hdl.handle.net/1721.1/7247.

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Stimuli outside classical receptive fields significantly influence the neurons' activities in primary visual cortex. We propose that such contextual influences are used to segment regions by detecting the breakdown of homogeneity or translation invariance in the input, thus computing global region boundaries using local interactions. This is implemented in a biologically based model of V1, and demonstrated in examples of texture segmentation and figure-ground segregation. By contrast with traditional approaches, segmentation occurs without classification or comparison of features

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Zeng, Huan-Min, and 曾煥銘. "Development of Visual Evaluation Model for Breakwaters." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/14778295905324342905.

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碩士<br>國立交通大學<br>土木工程研究所<br>86<br>Promenade breakwaters have been appreciated greatly since their comfortable materials, colors and forms have safety facilities and are in high harmony with the natural environment. For highly developed coast areas promenade breakwaters have been increasingly built abroad. However, there are no promenade breakwaters until now in Taiwan. Therefore, it is important to set up available evaluation models for future constructions of promenade breakwaters. The purpose of this paper is to propose some fair evaluation models for promenade breakwaters so that they can pr

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Chan, Yuan-Hao, and 詹原豪. "Visual Cryptography for 3-Dimensional Polygon Model." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/31897553347763531047.

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Jian, Ruei-Cheng, and 簡瑞成. "Applying Human Visual Model to JPEG2000 Codec." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/41042284591357188056.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>97<br>Recently, the wavelet based JPEG2000 algorithm has attracted significant attentions from researchers in image coding. JPEG2000 maximizes the PSNR value (or minimize MSE value) for each transmitted bit. However, it is well known that PSNR is not a good indicator for the perceptual image fidelity. Human visual perception is more sensitive to distortions in lower frequency components than higher frequency components. In this paper, we enhance JPEG2000 by introducing a process between wavelet transform and JPEG2000 called JND_SQ. JND_SQ allowed JPEG2000 to maxi

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