Photometric Stereo with Only Two Images: A Theoretical Study and Numerical Resolution

Yvain Quéau 1 Roberto Mecca 2 Jean-Denis Durou 1 Xavier Descombes 3
3 MORPHEME - Morphologie et Images
CRISAM - Inria Sophia Antipolis - Méditerranée , IBV - Institut de Biologie Valrose : U1091, SIS - Signal, Images et Systèmes
Abstract : The shape-from-shading problem, which aims at inferring the shape from a single image, is known to be ill-posed. Yet, scientists pursue the 3D-reconstruction of a shape from shading clues, considering the photometric stereo problem which enables the use of several images, acquired under different illuminations. Under standard assumptions such as diffuse reflection or uniform lighting, it is well-known that photometric stereo becomes well-posed using at least three images. In this work we consider the intermediate case with two images. Our contributions are twofold. We first analyze the arising ambiguities from a theoretical side. Based on this study, a reliable way to solve the ambiguities is put forward. We show that, when the surface albedo is known and integrability of the normals is imposed, the 3D-reconstruction problem can be reformulated as a binary labelling problem, efficiently solvable by resorting to the graph cut algorithm.
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https://hal.archives-ouvertes.fr/hal-01334657
Contributeur : Yvain Quéau <>
Soumis le : mardi 21 juin 2016 - 10:32:10
Dernière modification le : samedi 19 novembre 2016 - 01:09:23
Document(s) archivé(s) le : jeudi 22 septembre 2016 - 12:35:21

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  • HAL Id : hal-01334657, version 1

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Yvain Quéau, Roberto Mecca, Jean-Denis Durou, Xavier Descombes. Photometric Stereo with Only Two Images: A Theoretical Study and Numerical Resolution. 2016. 〈hal-01334657v1〉

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