Fractal approach to low-rate video coding

Bernd Huertgen; Peter Buettgen

doi:10.1117/12.157883

22 October 1993 Fractal approach to low-rate video coding

Bernd Huertgen, Peter Buettgen

Proceedings Volume 2094, Visual Communications and Image Processing '93; (1993) https://doi.org/10.1117/12.157883
Event: Visual Communications and Image Processing '93, 1993, Cambridge, MA, United States

Abstract

This paper presents a method for fast encoding and decoding of image sequences based on fractal coding theory and the hybrid coding concept. The DPCM-loop accounts for statistical dependencies of natural image sequences in temporal direction. Those regions of the original image where the prediction, i.e., motion estimation, and compensation fails are encoded using an advanced fractal coding scheme which originally was developed for encoding of still images. Similar to conditional replenishment coders, not regions of the residual image itself but of the original image are encoded. The introduction of a fractal coding scheme instead of the commonly used DCT turns out to be advantageous especially at very low bit rates (8 - 64 kbit/s). In order to increase reconstruction quality, encoding speed and compression ratio, some additional features such as hierarchical codebook search and multilevel block segmentation, are proposed.

Citation Download Citation

Bernd Huertgen and Peter Buettgen "Fractal approach to low-rate video coding", Proc. SPIE 2094, Visual Communications and Image Processing '93, (22 October 1993); https://doi.org/10.1117/12.157883

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