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Robust 3D face capture using example-based photometric stereo

Smith, Melvyn L.; Atkinson, Gary A.; Leitão, Helena C.G.; Saracchini, Rafael F.V.; Saracchini, Rafael; Stolfi, Jorge; Leita˜o, Helena; Atkinson, Gary; Smith, Melvyn

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Authors

Melvyn L. Smith

Gary A. Atkinson

Helena C.G. Leitão

Rafael F.V. Saracchini

Rafael Saracchini

Jorge Stolfi

Helena Leita˜o

Profile image of Melvyn Smith

Melvyn Smith Melvyn.Smith@uwe.ac.uk
Research Centre Director Vision Lab/Prof



Abstract

We show that using example-based photometric stereo, it is possible to achieve realistic reconstructions of the human face. The method can handle non-Lambertian reflectance and attached shadows after a simple calibration step. We use spherical harmonics to model and de-noise the illumination functions from images of a reference object with known shape, and a fast grid technique to invert those functions and recover the surface normal for each point of the target object. The depth coordinate is obtained by weighted multi-scale integration of these normals, using an integration weight mask obtained automatically from the images themselves. We have applied these techniques to improve the PHOTOFACE system of Hansen et al. (2010). © 2013 Elsevier B.V. All rights reserved.

Journal Article Type Article
Publication Date Jan 1, 2013
Publicly Available Date Jun 7, 2019
Journal Computers in Industry
Print ISSN 0166-3615
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 64
Issue 9
Pages 1399-1410
DOI https://doi.org/10.1016/j.compind.2013.04.003
Keywords photometric stereo, shape-from-shading, 3D surface reconstruction, facial geometry capture, image processing
Public URL https://uwe-repository.worktribe.com/output/931649
Publisher URL http://dx.doi.org/10.1016/j.compind.2013.04.003

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