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A context modeling algorithm and its application in video compression

: Mrak, M.; Marpe, D.; Wiegand, T.


IEEE Signal Processing Society:
International Conference on Image Processing 2003. Proceedings. Vol.3 : September 14 - 17, 2003, Barcelona, Spain / ICIP-2003
Piscataway, NJ: IEEE, 2003
ISBN: 0-7803-7750-8
International Conference on Image Processing (ICIP) <10, 2003, Barcelona>
Fraunhofer HHI ()

A new algorithm for context modeling of binary sources with application to video compression is presented. Our proposed method is based on a tree rearrangement and tree selection process for an optimized modeling of binary context trees. We demonstrate its use for adaptive context-based coding of selected syntax elements in a video coder. For that purpose we apply our proposed technique to the H.264/AVC standard and evaluate its performance for different sources and different quantization parameters. Experimental results show that by using our pro-posed algorithm coding gains similar or superior to those ob-tained with the H.264/AVC CABAC algorithm can be achieved.