Abstract
A new arbitrary region coding algorithm using a B-spline surface is presented. Pixels in the coded region are regarded as valid image data, and the parameters of the B-spline surface are calculated under certain optimisation criteria. Instead of the traditional least squares error (LSE) criterion, a least squares weighted error (LSWE) criterion is used as the approximation criterion. Simulation results show that the LSWE approach is much better for region coding than the LSE approach.
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