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Modélisation du mouvement des quadrupèdes à partir de la vidéo

Laurent Favreau 1
1 EVASION - Virtual environments for animation and image synthesis of natural objects
GRAVIR - IMAG - Laboratoire d'informatique GRAphique, VIsion et Robotique de Grenoble, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : Animals are more and more used in specials effects for the movie industry or in 3D feature films. 3D models of quadrupeds in particular are used very often due to the variety and aestetical appeal of quadrupedal motion. This thesis aims at using video, and more specifically wild life documentaries, for the creation of virtual quadrupeds models exhibiting realistic motion. We first develop methods to construct 3D animation skeletons of quadrupeds from images.We show how to reconstruct skeletons of quadrupeds from several images. Then we build a morphable model of quadruped skeleton that can be easily fitted onto an image or a 3D surface of the animal to animate. Secondly, we propose new methods to animate quadrupeds from video sequences. We first present a method to animate cyclic motion from video. This method includes automatic detection of key-frames from a video sequence. Then we propose a new method for indentifying the gaits used on a video sequence, as well as the transitions between gaits.
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Submitted on : Tuesday, April 28, 2009 - 11:42:21 AM
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  • HAL Id : tel-00379321, version 1



Laurent Favreau. Modélisation du mouvement des quadrupèdes à partir de la vidéo. Modélisation et simulation. Institut National Polytechnique de Grenoble - INPG, 2006. Français. ⟨tel-00379321⟩



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