Reconstructing 3D Facial Shape Using Spherical Harmonics

Authors:
Chengming Zou;Guanghui Zhao;Edwin R. Hancock
Affiliations:
School of Computer Science, Wuhan University of Technology, Wuhan, China 430070 and Department of Computer Science, The University of York, York, UK YO10 5DD;School of Computer Science, Wuhan University of Technology, Wuhan, China 430070;Department of Computer Science, The University of York, York, UK YO10 5DD
Venue:
ICIAP '09 Proceedings of the 15th International Conference on Image Analysis and Processing
Year:
2009

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Abstract

It is now well established that 3D facial shape can be effectively and conveniently reconstructed using spherical harmonics. This paper extends the state-of-the-art by showing how to recover a 3D facial shape reconstruction using a spherical parameterization and minimizing a Harmonic Energy based on spherical medians. The solution is formulated as a linear system and we propose an iterative residual fitting algorithm (LSQR-IRF) to solve it. We demonstrate the effectivenss of the method on range-data.