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Tesi sul tema "Visual optimization"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 10 febbraio 2022

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1

Timm, Richard W. (Richard William). "Visual-based methods in compliant mechanism optimization." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35649.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.<br>Includes bibliographical references (p. 103-105).<br>The purpose of this research is to generate visual-based methods for optimizing compliant mechanisms (CMs). Visual-based optimization methods use graphical representations (3-D plots) of CM performance to convey design information. They have many advantages over traditional optimization methods, such as enabling judgment-based design tradeoffs and ensuring robustness of optimized solutions. This research fulfilled the primary aims of determining (

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2

Ahmad, Naeem. "Modelling and optimization of sky surveillance visual sensor network." Licentiate thesis, Mittuniversitetet, Institutionen för informationsteknologi och medier, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-17123.

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A Visual Sensor Network (VSN) is a distributed system of a largenumber of camera sensor nodes. The main components of a camera sensornode are image sensor, embedded processor, wireless transceiver and energysupply. The major difference between a VSN and an ordinary sensor networkis that a VSN generates two dimensional data in the form of an image, whichcan be exploited in many useful applications. Some of the potentialapplication examples of VSNs include environment monitoring, surveillance,structural monitoring, traffic monitoring, and industrial automation.However, the VSNs also raise new ch

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3

Chung, Ka Kei. "Interactive visual optimization and analysis for RFID system performance /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CSED%202009%20CHUNG.

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4

Gisginis, Alexandros. "Production line optimization featuring cobots and visual inspection system." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-21752.

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This study examines the automatization potential for two production lines at Scania Transmission workshop in Södertälje using Industry 4.0 technologies. In order to do so, the capabilities of the operational performance and safety features of cobots and an Automated Visual Inspection System is theoretically investigated and intended to substitute CNC operators on certain tasks such as loading of conveyors and quality controls. The purpose of the study is to generate a realistic approach and give insight to the benefits of a future practical implementation.Previous research around these technol

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5

Treptow, André. "Optimization techniques for real time visual object detection and tracking." Berlin Logos-Verl, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=2938420&prov=M&dok_var=1&dok_ext=htm.

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6

Chen, Zhaozhong. "Visual-Inertial SLAM Extrinsic Parameter Calibration Based on Bayesian Optimization." Thesis, University of Colorado at Boulder, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10789260.

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<p> VI-SLAM (Visual-Inertial Simultaneous Localization and Mapping) is a popular way for robotics navigation and tracking. With the help of sensor fusion from IMU and camera, VI-SLAM can give a more accurate solution for navigation. One important problem needs to be solved in VI-SLAM is that we need to know accurate relative position between camera and IMU, we call it the extrinsic parameter. However, our measurement of the rotation and translation between IMU and camera is noisy. If the measurement is slightly o?, the result of SLAM system will be much more away from the ground truth after a

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7

Verpers, Felix. "Improving a stereo-based visual odometry prototype with global optimization." Thesis, Uppsala universitet, Avdelningen för visuell information och interaktion, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-383268.

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In this degree project global optimization methods, for a previously developedsoftwareprototype of a stereo odometry system, were studied. The existing softwareestimatesthe motion between stereo frames and builds up a map of selected stereo frameswhich accumulates increasing error over time. The aim of the project was to studymethods to mitigate the error accumulated over time in the step-wise motionestimation.One approach based on relative pose estimates and another approach based onreprojection optimization were implemented and evaluated for the existing platform.The results indicate that op

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8

Awang, Salleh Dayang Nur Salmi Dharmiza. "Study of vehicle localization optimization with visual odometry trajectory tracking." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS601.

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Au sein des systèmes avancés d’aide à la conduite (Advanced Driver Assistance Systems - ADAS) pour les systèmes de transport intelligents (Intelligent Transport Systems - ITS), les systèmes de positionnement, ou de localisation, du véhicule jouent un rôle primordial. Le système GPS (Global Positioning System) largement employé ne peut donner seul un résultat précis à cause de facteurs extérieurs comme un environnement contraint ou l’affaiblissement des signaux. Ces erreurs peuvent être en partie corrigées en fusionnant les données GPS avec des informations supplémentaires provenant d'autres ca

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9

Elsidani, Elariss Haifa. "A new visual query language and query optimization for mobile GPS." Thesis, Kingston University, 2008. http://eprints.kingston.ac.uk/20306/.

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In recent years computer applications have been deployed to manage spatial data with Geographic Information Systems (GIS) to store and analyze data related to domains such as transportation and tourism. Recent developments have shown that there is an urgent need to develop systmes for mobile devices and particularly for Location Based Services (LBS) such as proximity analysis that helps in finding the nearest neighbors, for example. restaurant, and the facilities that are located within a circle area around the user's location, known as a buffer area, for example, all restaurants within 100 me

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10

Hernandez, Herrero Sandra. "Cross-layer optimization for visual-inertial localization on resource-constrained devices." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296834.

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Mobile devices are increasingly expected to support high-performance cyber- physical applications in resource-constrained devices, such as drones and rovers. However, the gap between hardware limitations of these devices and application requirements is still prohibitive – conflicting goals such as robust, accurate, and efficient execution must be managed carefully to achieve acceptable operation. This thesis is focus on the exploration of the tradeoff between performance and efficiency in such cyber-physical systems, specifically with respect to localization, a core task for any mobile autonom

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11

Tall, Fredrik. "VR Performance for mobile devices : Optimization vs. visual shift against realism." Thesis, Luleå tekniska universitet, Institutionen för konst, kommunikation och lärande, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64168.

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This report will go through the performance and the limitations of VR on mobile devices for achieving realism. It will start off with a theoretical part such as the device and VR headset, and then a practical part where performance is tested to find relevant cost for pixels changed in an already created indoor office environment. The ultimate goal of VR is the Holodeck in Star Trek but without the need for the Starship Enterprise as a number cruncher. But to use a slick pair of sunglasses and with the computer everyone already has in their pocket, the smartphone. With phones and technology mov

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12

Lindstrand, Klas, and Axel Simonsson. "Optimization Workflow for Flat Slab Systems : Using Parametric Design with Visual programming." Thesis, KTH, Mekanik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230892.

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The advancement of IT and technology has enabled the development of boundary breaking tools such as Parametric design and visual programming. Structural engineering has the potential to take the advantage of this development, by implementing visual programming which with the combination of optimization algorithms can explore design proposals. This opens up new possibilities to work closer with architects in the early stages of projects to create bolder architectural and structural designs. The task of the master thesis was to create a workflow using parametric design with visual programming an

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13

Leeds, Daniel Demeny. "Searching for the Visual Components of Object Perception." Research Showcase @ CMU, 2013. http://repository.cmu.edu/dissertations/313.

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The nature of visual properties used for object perception in mid- and high-level vision areas of the brain is poorly understood. Past studies have employed simplistic stimuli probing models limited in descriptive power and mathematical under-pinnings. Unfortunately, pursuit of more complex stimuli and properties requires searching through a wide, unknown space of models and of images. The difficulty of this pursuit is exacerbated in brain research by the limited number of stimulus responses that can be collected for a given human subject over the course of an experiment. To more quickly ident

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14

Gembler, Felix [Verfasser]. "Parameter Optimization for Brain-Computer Interfaces based on Visual Evoked Potentials / Felix Gembler." Bielefeld : Universitätsbibliothek Bielefeld, 2020. http://d-nb.info/1222672227/34.

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15

Boisard, Olivier. "Optimization and implementation of bio-inspired feature extraction frameworks for visual object recognition." Thesis, Dijon, 2016. http://www.theses.fr/2016DIJOS016/document.

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L'industrie a des besoins croissants en systèmes dits intelligents, capable d'analyserles signaux acquis par des capteurs et prendre une décision en conséquence. Cessystèmes sont particulièrement utiles pour des applications de vidéo-surveillanceou de contrôle de qualité. Pour des questions de coût et de consommation d'énergie,il est souhaitable que la prise de décision ait lieu au plus près du capteur. Pourrépondre à cette problématique, une approche prometteuse est d'utiliser des méthodesdites bio-inspirées, qui consistent en l'application de modèles computationels issusde la biologie ou des

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16

Johnander, Joakim. "Visual Tracking with Deformable Continuous Convolution Operators." Thesis, Linköpings universitet, Datorseende, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138597.

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Visual Object Tracking is the computer vision problem of estimating a target trajectory in a video given only its initial state. A visual tracker often acts as a component in the intelligent vision systems seen in for instance surveillance, autonomous vehicles or robots, and unmanned aerial vehicles. Applications may require robust tracking performance on difﬁcult sequences depicting targets undergoing large changes in appearance, while enforcing a real-time constraint. Discriminative correlation ﬁlters have shown promising tracking performance in recent years, and consistently improved state-

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17

Cabral, Ricardo da Silveira. "Unifying Low-Rank Models for Visual Learning." Research Showcase @ CMU, 2015. http://repository.cmu.edu/dissertations/506.

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Many problems in signal processing, machine learning and computer vision can be solved by learning low rank models from data. In computer vision, problems such as rigid structure from motion have been formulated as an optimization over subspaces with fixed rank. These hard-rank constraints have traditionally been imposed by a factorization that parameterizes subspaces as a product of two matrices of fixed rank. Whilst factorization approaches lead to efficient and kernelizable optimization algorithms, they have been shown to be NP-Hard in presence of missing data. Inspired by recent work in co

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18

Gu, Hairong. "Graphic-Processing-Units Based Adaptive Parameter Estimation of a Visual Psychophysical Model." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1350577967.

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19

Dang, Duong Ngoc. "Humanoid manipulation and locomotion with real-time footstep optimization." Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0098/document.

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Cette thèse porte sur la réalisation des tâches avec la locomotion sur des robots humanoïdes. Grâce à leurs nombreux degrés de liberté, ces robots possèdent un très haut niveau de redondance. D’autre part, les humanoïdes sont sous-actionnés dans le sens où la position et l’orientation ne sont pas directement contrôlées par un moteur. Ces deux aspects, le plus souvent étudiés séparément dans la littérature, sont envisagés ici dans un même cadre. En outre, la génération d’un mouvement complexe impliquant à la fois des tâches de manipulation et de locomotion, étudiée habituellement sous l’angle d

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20

Lavelle, Jerome Philip. "An optimization of the placement of flexible reflective post delineators from a visual detection point of view." Ohio : Ohio University, 1986. http://www.ohiolink.edu/etd/view.cgi?ohiou1183139198.

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21

Leung, Raymond Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Scalable video compression with optimized visual performance and random accessibility." Awarded by:University of New South Wales. Electrical Engineering and Telecommunications, 2006. http://handle.unsw.edu.au/1959.4/24192.

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This thesis is concerned with maximizing the coding efficiency, random accessibility and visual performance of scalable compressed video. The unifying theme behind this work is the use of finely embedded localized coding structures, which govern the extent to which these goals may be jointly achieved. The first part focuses on scalable volumetric image compression. We investigate 3D transform and coding techniques which exploit inter-slice statistical redundancies without compromising slice accessibility. Our study shows that the motion-compensated temporal discrete wavelet transform (MC-TDWT)

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22

Keil, Wolfgang Verfasser], Fred [Akademischer Betreuer] Wolf, and Theo [Akademischer Betreuer] [Geisel. "Optimization principles and constraints shaping visual cortical architecture / Wolfgang Keil. Gutachter: Fred Wolf ; Theo Geisel. Betreuer: Fred Wolf." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2012. http://d-nb.info/1042305773/34.

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23

Naser, Karam Adil. "Modeling the Perceptual Similarity of Static and Dynamic Visual Textures : application to the Perceptual Optimization of Video Compression." Thesis, Nantes, 2017. http://www.theses.fr/2017NANT4013/document.

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Les textures sont des signaux particuliers dans la scène visuelle, où elles peuvent couvrir de vastes zones. Elles peuvent être classées en deux catégories : statique et dynamique, où les textures dynamiques impliquent des variations temporelles. Plusieurs travaux sur la perception des textures statiques ont permis de définir des mesures de similarité visuelle pour des applications comme la reconnaissance ou la classification de textures. Ces mesures utilisent souvent une représentation inspirée du traitement neuronal du système visuel humain. Cependant de telles approches ont été peu explorée

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24

Dang, Hieu. "Adaptive multiobjective memetic optimization: algorithms and applications." Journal of Cognitive Informatics and Natural Intelligence, 2012. http://hdl.handle.net/1993/30856.

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The thesis presents research on multiobjective optimization based on memetic computing and its applications in engineering. We have introduced a framework for adaptive multiobjective memetic optimization algorithms (AMMOA) with an information theoretic criterion for guiding the selection, clustering, and local refinements. A robust stopping criterion for AMMOA has also been introduced to solve non-linear and large-scale optimization problems. The framework has been implemented for different benchmark test problems with remarkable results. This thesis also presents two applications of these

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25

Thuresson, Sofia. "Parametric optimization of reinforced concrete slabs subjected to punching shear." Thesis, KTH, Betongbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279466.

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The construction industry is currently developing and evolving towards more automated and optimized processes in the project design phase. One reason for this development is that computational power is becoming a more precise and accessible tool and its applications are multiplying daily. Complex structural engineering problems are typically time-consuming with large scale calculations, resulting in a limited number of evaluated solutions. Quality solutions are based on engineering experience, assumptions and previous knowledge of the subject.The use of parametric design within a structural de

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26

Marco, Pontus. "Design & optimization of modular tanksystems for vehicle wash facilities." Thesis, Karlstads universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-79009.

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Clean and safe water is important for the well being of all organisms on earth. Therefore, it is important to reduce harmful emissions from industrial processes that use water in different ways. In vehicle washing processes, water is used in high-pressure processes, as a medium for detergents, and for rinsing of vehicles. The wastewater produced by these functions passes through a water reclamation system. A water reclamation system has two main functions, to produce reusable water to be used in future washing cycles, and to separate contaminants and purify the wastewater so it can be released

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Aldahdooh, Ahmed. "Content-aware video transmission in HEVC context : optimization of compression, of error resilience and concealment, and of visual quality." Thesis, Nantes, 2017. http://www.theses.fr/2017NANT4011/document.

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Dans cette étude, nous utilisons des caractéristiques locales/globales en vue d’améliorer la chaîne de transmission des séquences de vidéos. Ce travail est divisé en quatre parties principales qui mettent à profit les caractéristiques de contenu vidéo. La première partie introduit un modèle de prédiction de paramètres d’un encodeur basé sur la complexité du contenu. Ce modèle utilise le débit, la distorsion, ainsi que la complexité de différentes configurations de paramètres afin d’obtenir des valeurs souhaitables (recommandées) de paramètres d’encodage. Nous identifions ensuite le lien en les

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28

Simonenko, Ekaterina. "OLAP query optimization and result visualization." Thesis, Paris 11, 2011. http://www.theses.fr/2011PA112138.

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Nous explorons différents aspects des entrepôts de données et d’OLAP, le point commun de nos recherches étant le modèle fonctionnel pour l'analyse de données. Notre objectif principal est d'utiliser ce modèle dans l'étude de trois aspects différents, mais liés:- l'optimisation de requêtes par réécriture et la gestion du cache,- la visualisation du résultat d'une requête OLAP,- le mapping d'un schéma relationnel en BCNF vers un schéma fonctionnel. L'optimisation de requêtes et la gestion de cache sont des problèmes cruciaux dans l'évaluation de requêtes en général, et les entrepôts de données e

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29

Hermann, Frank [Verfasser], and Hartmut [Akademischer Betreuer] Ehrig. "Analysis and Optimization of Visual Enterprise Models : Based on Graph and Model Transformation [[Elektronische Ressource]] / Frank Hermann. Betreuer: Hartmut Ehrig." Berlin : Universitätsbibliothek der Technischen Universität Berlin, 2011. http://d-nb.info/1014891507/34.

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D'Angio, Paul Christopher. "Adaptive and Passive Non-Visual Driver Assistance Technologies for the Blind Driver Challenge®." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/27582.

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This work proposes a series of driver assistance technologies that enable blind persons to safely and independently operate an automobile on standard public roads. Such technology could additionally benefit sighted drivers by augmenting vision with suggestive cues during normal and low-visibility driving conditions. This work presents a non-visual human-computer interface system with passive and adaptive controlling software to realize this type of driver assistance technology. The research and development behind this work was made possible through the Blind Driver Challenge® initiative taken

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31

Martínez, Ana Laura, and Natali Arvidsson. "Balance Between Performance and Visual Quality in 3D Game Assets : Appropriateness of Assets for Games and Real-Time Rendering." Thesis, Uppsala universitet, Institutionen för speldesign, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-413871.

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This thesis explores the balance between visual quality and the performance of a 3D object for computer games. Additionally, it aims to help new 3D artists to create assets that are both visually adequate and optimized for real-time rendering. It further investigates the differences in the judgement of the visual quality of thosethat know computer graphics, and thosenot familiar with it. Many explanations of 3D art optimization are often highly technical and challenging for graphic artists to grasp. Additionally, they regularly neglect the effects of optimization to the visual quality of the a

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32

Nielsen, Jerel Bendt. "Robust Visual-Inertial Navigation and Control of Fixed-Wing and Multirotor Aircraft." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7584.

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With the increased performance and reduced cost of cameras, the robotics community has taken great interest in estimation and control algorithms that fuse camera data with other sensor data.In response to this interest, this dissertation investigates the algorithms needed for robust guidance, navigation, and control of fixed-wing and multirotor aircraft applied to target estimation and circumnavigation.This work begins with the development of a method to estimate target position relative to static landmarks, deriving and using a state-of-the-art EKF that estimates static landmarks in its state

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33

Seeman, Michal. "Zpracování obrazu pro lepší vjem a interakci." Doctoral thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2012. http://www.nusl.cz/ntk/nusl-261263.

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Reprodukce obrazu má zprostředkovat vjem co nejvíce podobný tomu, když pozorujeme původní obraz. Digitální reprodukce obrazu zahrnuje snímání, zpracování a vykreslení. Mnohé postupy v tomto procesu nejsou dokonalé. Tato práce předkládá zlepšení v rychlosti a přesnosti několika ze současných metod.

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Granberg, Andreas, and Joel Wahlstein. "Parametric design and optimization of pipe bridges : Automating the design process in early stage of design." Thesis, KTH, Bro- och stålbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277935.

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Parametric design can be used for structural design. This approach has someclear advantages compared to the conventional point-based approach using differentComputer Aided Design (CAD)-software, especially in early stage of design. Since themodel is parametrically defined, alternate designs, that are within the scope of theparametric definition, can be explored with little effort from the user compared tothe point-based models. In this way, optimization routines can be used to make moreinformed decisions about the design. Pipe bridges usually have a similar design that issuitable to be defined

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Liljengård, Anton. "Filstorleksoptimering för retuscheringsarbete : Enundersökning med fokus på moderetuschering." Thesis, Högskolan Dalarna, Grafisk teknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:du-25077.

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Under bearbetning av bilder idag förekommer ofta stora filer. Med den effektiva teknologiska utvecklingen har efterfrågan på kvalitet växt allt mer. I en värld där fotografens kamera har blivit mer högupplöst har även bilders filstorlek blivit större. Målet med detta examensarbete har varit att komma fram med en rekommendation för hur man arbetar mot en liten filstorlek. Rekommendationen är till för retuschörer som arbetar inom modebranschen och med bilder ämnade för print. Arbetet har försökt åskådliggöra vad under retuscheringens arbetsgång som orsakar en större filstorlek. Detta genom att k

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Keukelaar, J. H. D. "Topics in Soft Computing." Doctoral thesis, KTH, Numerical Analysis and Computer Science, NADA, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3294.

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37

Church, Donald Glen. "Reducing Error Rates in Intelligence, Surveillance, and Reconnaissance (ISR) Anomaly Detection via Information Presentation Optimization." Wright State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=wright1452858183.

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Lupi, Giacomo. "Modelli e metodi metaeuristici per la gestione operativa di una rete distributiva cross-docking: il caso OneExpress." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Abstract (sommario):

La tesi si concentra sull’ottimizzazione della rete logistica del pallet network OneExpress, in particolare, si occupa di sviluppare una metodologia per l’instradamento degli ordini all’interno della rete. Il network di OneExpress è composto da tre Hub e da circa 120 affiliati sparsi per tutta Italia. Ognuno di questi è un piccolo operatore logistico che conferisce la merce ad un Hub, il quale riceve il truck con merce frazionata in inbound, la ribalta e la consolida verso un unico truck che sarà diretto all’affiliato di destinazione. L’obiettivo del lavoro è costruire uno strumento che fornis

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Farkač, Daniel. "Aplikace VBA (Visual Basic for Application) a Maple na problémy procesního inženýrství." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228712.

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The task of the diploma thesis named VBA and Maple Application on Process Engineering Problems is to show the possibilities of using these programming languages for various engineering tasks. Particularly the programming language Visual Basic for Application (VBA), which is a part of MS Office package, is very little used in practise. That´s why this thesis solves the complex task of a furnaces design process; the topic was reccomended by the supervisor prof. Ing. Josef Kohoutek, CSc. Specifically, the thesis deals with calculations of heat transfer and optimization of the height of extended s

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Li, Hailong. "Analytical Model for Energy Management in Wireless Sensor Networks." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1367936881.

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Costa, Daniel Gouveia. "Otimiza??es da transmiss?o de imagens em redes de sensores visuais sem fio explorando a relev?ncia de monitoramento dos n?s fontes e codifica??o DWT." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15216.

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Made available in DSpace on 2014-12-17T14:55:11Z (GMT). No. of bitstreams: 1 DanielGC_TESE_Capa_pag90.pdf: 3923138 bytes, checksum: b23776867381c62bd332c913640275ac (MD5) Previous issue date: 2013-04-29<br>The development of wireless sensor networks for control and monitoring functions has created a vibrant investigation scenario, covering since communication aspects to issues related with energy efficiency. When source sensors are endowed with cameras for visual monitoring, a new scope of challenges is raised, as transmission and monitoring requirements are considerably changed. Parti

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Sundaramoorthi, Ganesh. "Global Optimizing Flows for Active Contours." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16145.

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This thesis makes significant contributions to the object detection problem in computer vision. The object detection problem is, given a digital image of a scene, to detect the relevant object in the image. One technique for performing object detection, called ``active contours,' optimizes a constructed energy that is defined on contours (closed curves) and is tailored to image features. An optimization method can be used to perform the optimization of the energy, and thereby deform an initially placed contour to the relevant object. The typical optimization technique used in almost every act

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Wahlberg, David. "Data Reduction Methods for Deep Images." Thesis, Högskolan i Gävle, Datavetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-25473.

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Deep images for use in visual effects work during deep compositing tend to be very large. Quite often the files are larger than needed for their final purpose, which opens up an opportunity for optimizations. This research project is about finding methods for identifying redundant and excessive data use in deep images, and then approximate this data by resampling it and representing it using less data. Focus was on maintaining the final visual quality while optimizing the files so the methods can be used in a sharp production environment. While not being very successful processing geometric da

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Rangel, Elivelton Oliveira. "Otimiza??o de Redes de Sensores Visuais sem Fio por Algoritmos Evolutivos Multiobjetivo." Universidade Estadual de Feira de Santana, 2018. http://tede2.uefs.br:8080/handle/tede/675.

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Submitted by Jadson Francisco de Jesus SILVA (jadson@uefs.br) on 2018-07-18T21:55:12Z No. of bitstreams: 1 Disserta??o.pdf: 2639155 bytes, checksum: af49bdcdf83d4a063546324a223124a4 (MD5)<br>Made available in DSpace on 2018-07-18T21:55:12Z (GMT). No. of bitstreams: 1 Disserta??o.pdf: 2639155 bytes, checksum: af49bdcdf83d4a063546324a223124a4 (MD5) Previous issue date: 2018-03-27<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES<br>Wireless visual sensor networks can provide valuable information for a lot of moni- toring and control applications, which has driven much atte

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Kim, Jae-Hak, and Jae-Hak Kim@anu edu au. "Camera Motion Estimation for Multi-Camera Systems." The Australian National University. Research School of Information Sciences and Engineering, 2008. http://thesis.anu.edu.au./public/adt-ANU20081211.011120.

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The estimation of motion of multi-camera systems is one of the most important tasks in computer vision research. Recently, some issues have been raised about general camera models and multi-camera systems. Using many cameras as a single camera is studied [60], and the epipolar geometry constraints of general camera models is theoretically derived. Methods for calibration, including a self-calibration method for general camera models, are studied [78, 62]. Multi-camera systems are an example of practically implementable general camera models and they are widely used in many applications nowaday

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Бабушкин, Б. Д., та B. D. Babushkin. "Разработка web-приложения решения задачи оптимизации состава многокомпонентной плавильной шихты : магистерская диссертация". Master's thesis, б. и, 2021. http://hdl.handle.net/10995/99885.

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Магистерская диссертация посвящена разработке web-приложения решения задачи оптимизации состава многокомпонентной плавильной шихты. В ходе работы рассмотрены основные этапы разработки программного обеспечения: анализ предметной области; создание архитектуры программного обеспечения; разработка алгоритмического обеспечения и справочной документации; подготовка дистрибутива. В процессе выполнения работы реализованы все цели и задачи, стоящие перед проектом. Основными пользователями системы являются специалисты инженерно-технологического персонала доменных цехов, студенты. Научная новизна получ

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Wholey, Leonard N. (Leonard Nathaniel). "Trajectory optimization with detection avoidance for visually identifying an aircraft." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32458.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2005.<br>Includes bibliographical references (p. 115-118).<br>Unmanned aerial vehicles (UAVs) play an essential role for the US Armed Forces by performing missions deemed as "dull, dirty and dangerous" for a pilot. As the capability of UAVs expand. they will perform a broader range of missions such as air-to-air combat. The focus of this thesis is forming trajectories for the closing phase of an air-to-air combat scenario. A UAV should close with the suspected aircraft in a manner that allows a ground

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Penin, Bryan. "Contributions to optimal and reactive vision-based trajectory generation for a quadrotor UAV." Thesis, Rennes 1, 2018. http://www.theses.fr/2018REN1S101/document.

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La vision représente un des plus importants signaux en robotique. Une caméra monoculaire peut fournir de riches informations visuelles à une fréquence raisonnable pouvant être utilisées pour la commande, l’estimation d’état ou la navigation dans des environnements inconnus par exemple. Il est cependant nécessaire de respecter des contraintes visuelles spécifiques telles que la visibilité de mesures images et les occultations durant le mouvement afin de garder certaines cibles visuelles dans le champ de vision. Les quadrirotors sont dotés de capacités de mouvement très réactives du fait de leur

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Жужгов, А. И., та A. I. Zhuzhgov. "Разработка web-приложения решения задачи оптимизации затрат на перевозку продукции : магистерская диссертация". Master's thesis, б. и, 2021. http://hdl.handle.net/10995/99886.

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Объектом исследования является процесс транспортных перевозок. Предметом исследования выступают пункты потребления и пункты производства, автоматизация системы расчета оптимальной стоимости перевозки. Поставленные задачи: 1. Возможность ввода, корректировки и сохранения вариантов расчёта по оптимизации. 2. Отображение результатов расчета в графическом виде на пользовательской форме. Целью данной работы является создание информационного Web-приложения, который позволит рассчитывать оптимальную стоимость перевозки продукции, предоставлять пользователю результаты расчета в графическом виде. Науч

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Jackson, James Scott. "Enabling Autonomous Operation of Micro Aerial Vehicles Through GPS to GPS-Denied Transitions." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/8709.

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Micro aerial vehicles and other autonomous systems have the potential to truly transform life as we know it, however much of the potential of autonomous systems remains unrealized because reliable navigation is still an unsolved problem with significant challenges. This dissertation presents solutions to many aspects of autonomous navigation. First, it presents ROSflight, a software and hardware architure that allows for rapid prototyping and experimentation of autonomy algorithms on MAVs with lightweight, efficient flight control. Next, this dissertation presents improvments to the state-of-t

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