Robust 3D face capture using example-based photometric stereo

Saracchini, R., Stolfi, J., Leita˜o, H., Atkinson, G. and Smith, M. (2013) Robust 3D face capture using example-based photometric stereo. Computers in Industry. ISSN 0166-3615 Available from: http://eprints.uwe.ac.uk/20814

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Publisher's URL: http://dx.doi.org/10.1016/j.compind.2013.04.003

Abstract/Description

We show that using example-based photometric stereo 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)

Item Type:Article
Uncontrolled Keywords:photometric stereo, shape-from-shading, 3D surface reconstruction, facial geometry capture, image processing
Faculty/Department:Faculty of Environment and Technology > Department of Engineering Design and Mathematics
ID Code:20814
Deposited By: Professor M. Smith
Deposited On:31 Jul 2013 09:03
Last Modified:06 Feb 2017 10:24

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