Title :
Performance optimized predictor blending technique for lossless image coding
Author :
Ulacha, Grzegorz ; Stasinski, Ryszard
Author_Institution :
Poznan Univ. of Technol., West Pomeranian Univ. of Technol., Poznan, Poland
Abstract :
The paper presents a lossless coding method based on predictor blending approach that codes nine widely used benchmark images with the lowest average bitrate ever published. At the same time the algorithm is more time efficient than its most important competitors: TMWLEGO, MRP 0.5, and Multi-WLS. A set of 20 blended predictors is applied, including adaptive RLS/OLS ones, ALCM, CoBALP, and a texture context mapping one. A sophisticated error bias removal method is applied to outputs from few of them. Prediction error is coded using an advanced adaptive context arithmetic coder.
Keywords :
adaptive codes; arithmetic codes; error statistics; image coding; image texture; ALCM; CoBALP; MRP 0.5; TMW; adaptive RLS-OLS; advanced adaptive context arithmetic coder; average bitrate; error bias removal method; lossless image coding; multi-WLS; performance optimized predictor blending technique; texture context mapping; Algorithm design and analysis; Context; Encoding; Image coding; Materials requirements planning; Pixel; Prediction algorithms; Lossless coding; adaptive context arithmetic coder; adaptive prediction; prediction error bias removal; predictor blending;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0538-0
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2011.5946788
