Predictive fractal image coding: hybrid algorithms and compression of residuals

Summary form only given. The authors introduce hybrid algorithms which consist of a fractal predictor in the spatial domain with subsequent coding of the residual image (error-image between the fractal prediction and the image to compress). For coding the residual either wavelet (based on the SPIHT coder) or DCT based coding (as used in interframe compression, e.g. for B or P frames in H.261, MPEG-1,2) is employed. Additionally they contribute to the discussion about the performance of wavelet and DCT based algorithms for the compression of motion compensated error frames in interframe video coding algorithms since the residual images considered in the proposed hybrid algorithms exhibit similar (or even identical) statistical properties as motion compensated error frames.