Multiview face capture using polarized spherical gradient illumination
Abhijeet Ghosh, Graham Fyffe, Borom Tunwattanapong, Jay Busch, Xueming Yu, Paul Debevec
In ACM Transactions on Graphics, 30(6), December 2011.
Abstract: We present a novel process for acquiring detailed facial geometry with high resolution diffuse and specular photometric information from multiple viewpoints using polarized spherical gradient illumination. Key to our method is a new pair of linearly polarized lighting patterns which enables multiview diffuse-specular separation under a given spherical illumination condition from just two photographs. The patterns -- one following lines of latitude and one following lines of longitude -- allow the use of fixed linear polarizers in front of the cameras, enabling more efficient acquisition of diffuse and specular albedo and normal maps from multiple viewpoints. In a second step, we employ these albedo and normal maps as input to a novel multi-resolution adaptive domain message passing stereo reconstruction algorithm to create high resolution facial geometry. To do this, we formulate the stereo reconstruction from multiple cameras in a commonly parameterized domain for multiview reconstruction. We show competitive results consisting of high-resolution facial geometry with relightable reflectance maps using five DSLR cameras. Our technique scales well for multiview acquisition without requiring specialized camera systems for sensing multiple polarization states.
Keyword(s): computational illumination, face capture, message passing, polarization
Article URL: http://dx.doi.org/10.1145/2070781.2024163
BibTeX format:
@article{Ghosh:2011:MFC,
  author = {Abhijeet Ghosh and Graham Fyffe and Borom Tunwattanapong and Jay Busch and Xueming Yu and Paul Debevec},
  title = {Multiview face capture using polarized spherical gradient illumination},
  journal = {ACM Transactions on Graphics},
  volume = {30},
  number = {6},
  pages = {129:1--129:10},
  month = dec,
  year = {2011},
}
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