Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
527894 | Computer Vision and Image Understanding | 2010 | 14 Pages |
Abstract
We present an optimal generalisation of the 4-light photometric stereo technique for an arbitrary number of Q illuminants. We assume that the surface reflectance can be approximated by the Lambertian model plus a specular reflection. The algorithm works in a recursive manner eliminating the pixel intensities affected by shadows or highlights, based on a least squares error technique, retaining only the information coming from illumination directions that can be used for photometric stereo reconstruction of the normal of the corresponding surface patch. We report results for both simulated and real surfaces and compare them with the results of other state of the art photometric stereo algorithms.
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Physical Sciences and Engineering
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Computer Vision and Pattern Recognition
Authors
Vasileios Argyriou, Maria Petrou, Svetlana Barsky,