Reconstruction tridimensionnelle par stéréophotométrie

Abstract : This thesis tackles the photometric stereo problem, a 3D-reconstruction technique consisting in taking several pictures of a scene under different lightings. We first focus on robust techniques for estimating the normals to the surface, and for integrating these normals into a depth map. Then, we study two situations where the problem is ill-posed: when lightings are unknown and when only two images are used. Part 3 is devoted to more realistic models, in terms of lightings and of surface reflectance. These first three parts bring us to the limits of the usual formulation of photometric stereo: we eventually introduce in Part 4 a variational and differential reformulation of this problem which allows us to overcome these limits.
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https://tel.archives-ouvertes.fr/tel-01261526
Contributor : Yvain Quéau <>
Submitted on : Monday, January 25, 2016 - 2:45:10 PM
Last modification on : Thursday, June 27, 2019 - 4:27:49 PM
Long-term archiving on : Tuesday, April 26, 2016 - 11:03:19 AM

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  • HAL Id : tel-01261526, version 1

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Yvain Quéau. Reconstruction tridimensionnelle par stéréophotométrie. Vision par ordinateur et reconnaissance de formes [cs.CV]. Institut National Polytechnique de Toulouse, 2015. Français. ⟨tel-01261526⟩

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