Estimation d'un mouvement de caméra et problèmes connexes

Abstract : This thesis deals with camera motion estimation, when the camera films a static scene, from the obtained sequence of images.
The proposed method concerns motion estimation between two adjacent frames and is based on the determination of a 2D quadratic deformation between images.
From the motion estimation, we next study the problem of scene structure estimation. We apply Belief Propagation method directly on an images couple, without any rectification, just using motion estimation.
Finally, we study the injectivity of the map that associates an optical flow to camera motion and scene structure. Given two camera motions, we describe the domain where the two flows can be identical and the surfaces leading to these ambiguous flows.
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Submitted on : Thursday, February 22, 2007 - 2:56:50 PM
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Claire Jonchery. Estimation d'un mouvement de caméra et problèmes connexes. Mathématiques [math]. École normale supérieure de Cachan - ENS Cachan, 2006. Français. ⟨tel-00132757⟩

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