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Green Image
Issue No. 05 - May (2013 vol. 35)
ISSN: 0162-8828
pp: 1080-1093
O. Aldrian , Dept. of Comput. Sci., Univ. of York, York, UK
W. A. P. Smith , Dept. of Comput. Sci., Univ. of York, York, UK
In this paper, we present a complete framework to inverse render faces with a 3D Morphable Model (3DMM). By decomposing the image formation process into geometric and photometric parts, we are able to state the problem as a multilinear system which can be solved accurately and efficiently. As we treat each contribution as independent, the objective function is convex in the parameters and a global solution is guaranteed. We start by recovering 3D shape using a novel algorithm which incorporates generalization error of the model obtained from empirical measurements. We then describe two methods to recover facial texture, diffuse lighting, specular reflectance, and camera properties from a single image. The methods make increasingly weak assumptions and can be solved in a linear fashion. We evaluate our findings on a publicly available database, where we are able to outperform an existing state-of-the-art algorithm. We demonstrate the usability of the recovered parameters in a recognition experiment conducted on the CMU-PIE database.
Lighting, Shape, Harmonic analysis, Solid modeling, Cameras, Rendering (computer graphics), Vectors,texture and illumination analysis, Inverse rendering, face shape
O. Aldrian, W. A. P. Smith, "Inverse Rendering of Faces with a 3D Morphable Model", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 35, no. , pp. 1080-1093, May 2013, doi:10.1109/TPAMI.2012.206
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