In this section, we describe a general approach to 3D face estimation using the 3D face database, and address the specific case of estimation from photographs. If partial information of a face is obtained, it can be used to estimate the entire face structure using a known relation between a subset of data points and the entire face.
Time-series plots of the top six principal components used to synthesize the talking face after parametrization by the facial-marker positions at each time step. The behavior of the second component is almost identical to that of the jaw (R = .95).
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