Automatic Tracking
Mostrando 13-24 de 27 artigos, teses e dissertações.
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13. Rastreamento de animais por imagens de video em experimentos de laboratorio / Animal tracking by video images in laboratory experiments
The automatic tracking of animals allows a quicker and more consistent analysis of behaviour than the usual manual method for registering experimental parameters in biology. The automatic register of parameters is performed by a system that analyses a sequence of images and computes a number of descriptors that characterizes the behaviour of each target. Our
Publicado em: 2008
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14. Kinematical analysis of handball players trajectories obtained by automatic tracking / Analise cinematica das trajetorias de jogadores de handebol obtidas por rastreamento automatico
The collective sports have become object of scientific investigation in many knowledge areas. A lot of these studies need the development of methodology to quantify the analysis variables. The kinematical analysis of players by videogrammetry gives data about player s position in function of time and gives advantages, like the possibility to analyze lots of
Publicado em: 2007
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15. Aplicação da tecnologia de agentes de planejamento em operações de satélites / Applying the planning agent tecnology in satellite operations
Research for automatic solutions for space operations is a real need for all space agencies in order to reduce space mission costs. Nowadays, a significant parcel of satellite operation activities at the National Institute for Space Research (INPE) is still performed manually. Finding automated alternatives for the satellite operation activities at INPE is a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/03/2006
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16. Técnica de Navegação de um Robô Móvel Baseado em um Sistema de Visão para Integrá-lo em uma Célula Flexível de Manufatura (FMC) / Mobile robot navigation technique based in vision system for integrate it to a flexivel manufacturing cell (FMC)
Nowadays, the control of the automatic guided vehicles (AGV), is based on the study of different navigation existing techniques. Those utilize different kinds of sensors (infrared, ultrasound, tactile, vision, etc) as part of the equipment included in the mobile robot carrying out their tasks of movement and control since an initial position to a defined fin
Publicado em: 2006
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17. Utilizando visão computacional para simular comportamentos de multidão de humanos virtuais
This study presents a model to extract information from the real world using computer vision techniques. In particular, we use tracking algorithms to extract the trajectories of filmed people, aiming to simulate and validate the behavior of virtual human crowds.A great challenge when trying to reproduce in a realistic manner (by means of simulation) the beha
Publicado em: 2006
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18. Comparative study of background subtraction algorithms in image sequences / Estudo comparativo de algoritmos de subtração de fundo em sequencias de imagens
Existe uma grande demanda de sistemas de captura de movimentos robustos e confiáveis, sejam eles para aplicações comerciais, para o cumprimento da lei ou monitoramento de territórios. A obtenção e instalação de câmaras de vídeo são hoje muito baratas; os maiores custos estão relacionados às pessoas que vêem as imagens, as interpretam e tiram co
Publicado em: 2006
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19. Hand tracking with the subspace hierarchical particle filter / Rastreando a mão com o filtro de particulas com hierarquia de subespaços
Nesta dissertação, tratamos o problema de rastrear modelos hierárquicos através de visão computacional no contexto de interfaces gestuais. Gestos formam uma modalidade importante de comunicação humana, e ainda assim, existem poucas, e limitadas, aplicações computacionais com base em gestos. Nosso trabalho é mais uma iniciativa para reverter este qu
Publicado em: 2006
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20. COLORIZAÇÃO 3D PARA ANIMAÇÃO 2D / 3D COLORIZING FOR 2D ANIMATION
Esta dissertação discute a aplicação de efeitos de colorização 3D a animações 2D produzidas pela técnica quadro-a-quadro. Utilizando algoritmos de processamento de imagens, desenhos 2D são preparados para receber técnicas de sombreamento evitando a transformação da cena para uma geometria 3D. Esta preparação se dá através da obtenção de ma
Publicado em: 2005
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21. Tecnicas de rastreamento e aplicações em analise cinematica de movimentos humanos
The problem of tracking objects from a sequence of video images has been of great interest in the recent years. This interest is motivated, especially, by the wide range of applications such as virtual reality surveillance systems, robotic, human motion analysis, etc. In the human motion analysis, the kinematic variables, (e.g., the covered distance, velocit
Publicado em: 2004
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22. Rastreamento automatico de trajetorias de jogadores de futebol por videogrametria : validação do metodo e analise dos resultados
An objective analysis of the dynamic of a soccer game required the development of efficient methodologies for detection and codification about information during the match. The continuous data about the position in function of time of each players movement, make possible the analysis of covered distances, the displacement region in the field, the distributio
Publicado em: 2004
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23. SCENE TRACKING WITH AUTOMATIC CAMERA CALIBRATION / ACOMPANHAMENTO DE CENAS COM CALIBRAÇÃO AUTOMÁTICA DE CÂMERAS
In the television casting of sports events, it has become very common to insert synthetic elements to the images in real time, such as adds, marks on the field, etc. Usually, this insertion is made using special cameras, previously calibrated and provided with features that record their movements and parameter changes. With such information, inserting new ob
Publicado em: 2001
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24. Concepção e implementação de um sistema para analise cinematica de movimentos humanos / Conception and implementation of a system for kinematic analysis of human movements
This research consists in the conception and implementation of a system for kinematic analysis of human movements, based on video registers. The guide concept is presented. Problems inherent to the three-dimensional kinematic analysis of human movements are formulated and solutions proposed. The implemented solutions are tested and applied examples shown. Th
Publicado em: 1997