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A Non-Convex Variational Approach to Photometric Stereo under Inaccurate Lighting

Quéau, Yvain and Wu, Tao and Durou, Jean-Denis and Lauze, François and Cremers, Daniel A Non-Convex Variational Approach to Photometric Stereo under Inaccurate Lighting. (2017) In: International Conference on Computer Vision and Pattern Recognition (CVPR 2017), 21 July 2017 - 26 July 2017 (Honolulu, United States).

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Official URL: http://dx.doi.org/10.1109/CVPR.2017.45

Abstract

This paper tackles the photometric stereo problem in the presence of inaccurate lighting, obtained either by calibration or by an uncalibrated photometric stereo method. Based on a precise modeling of noise and outliers, a robust variational approach is introduced. It explicitly accounts for self-shadows, and enforces robustness to cast-shadows and specularities by resorting to redescending M-estimators. The resulting non-convex model is solved by means of a computationally efficient alternating reweighted least-squares algorithm. Since it implicitly enforces integrability, the new variational approach can refine both the intensities and the directions of the lighting.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to IEEE editor. The definitive version is available at http://ieeexplore.ieee.org This papers appears in Proceedings of CVPR 2017. Electronic ISBN: 978-1-5386-0457-1 Print ISSN: 1063-6919 The original PDF of the article can be found at: https://ieeexplore.ieee.org/document/8099528/ Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
HAL Id:hal-01809278
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Technische Universität München - TUM (GERMANY)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Other partners > University of Copenhagen - UCPH (DENMARK)
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Deposited By: IRIT IRIT
Deposited On:02 May 2018 11:55

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