Context based lossless coder based on RLS predictor adaption scheme

Authors:
Grzegorz Ulacha;Ryszard Stasinski
Affiliations:
West Pomeranian University of Technology and Poznan University of Technology, Poland;West Pomeranian University of Technology and Poznan University of Technology, Poland
Venue:
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Year:
2009

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Abstract

In the paper highly efficient context image lossless coder of moderate complexity is presented. Three main plus few auxiliary contexts are described. Predictors are adaptive, enhanced RLS coefficient update formula is implemented. A stage of NLMS prediction is added. Prediction error bias is removed using a robust multi-source approach. An advanced adaptive context arithmetic coder is applied. Experimental results show that indeed, the new coder is both more effective and faster than other state-of-the-art algorithms.