A sparse representation method for determining the optimal illumination directions in Photometric Stereo

Argyriou, V, Zafeiriou, S, Villarini, B and Petrou, M (2013) A sparse representation method for determining the optimal illumination directions in Photometric Stereo. Signal Processing, 93 (11). pp. 3027-3038. ISSN 0165-1684

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Official URL: https://dx.doi.org/10.1016/j.sigpro.2013.04.026

Abstract

The analysis of surface and texture details with the help of changes in illumination direction is a key task in 3D shape reconstruction either based on Photometric Stereo, Shape from Shading or Structured Light. This paper presents a novel approach for estimating the optimal illumination directions for the accurate calculation of the surface normals, while minimising the presence of shadows and the reconstructed albedo error. The method regards a sparse representation of the illumination arrangement and estimates the light directions using l1 optimisation. The Lambertian model is considered and the theoretical development is demonstrated with experimental results.

Item Type: Article
Uncontrolled Keywords: L1
Subjects: University of Westminster > Science and Technology
SWORD Depositor: repository@westminster.ac.uk
Depositing User: repository@westminster.ac.uk
Date Deposited: 06 Nov 2015 15:21
Last Modified: 21 Dec 2015 10:38
URI: http://westminsterresearch.wmin.ac.uk/id/eprint/15954

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