Abstract:
A 3D head modeling method from a sequence of 2D images is
described. The views from which the input images are acquired
are not calibrated. Therefore, an auto-calibration method for a
sequence of images with small rotations and translation is
developed. For this purpose, we have modified an already
existing auto-calibration algorithm to incorporate known aspect
ratio and skew values to make it applicable for small rotation
around a single axis. We apply this auto-calibration technique to
head (face) modeling. Three dimensional positions of known
facial features computed from two dimensional images are used
to deform a generic head model by using a spring based energy
minimization method.