Fitting Algorithm
nThe Algorithm optimizes
nShape coefficients: (a1,
a2, a3,….)T
nTexture coefficients: (b1,
b2, b3,….)T
n22 rendering parameters:
nPose angles: f,l and q
nTranslation tw and focal length
of the camera f
nVarious illumination parameters like ambient light intensities, directed light intensities, angles
etc.
nThe illumination parameters also include parameters for the Phong model which accounts for non-lambertian reflections and takes into account the position of the eye.