Prediction truncation based on regression analysis for JPEG2000 embedded block coding
Wang Ying-yi · Computer Engineering and Applications Journal · 2010
To solve the problems of execution complexity and time waste in compression process induced by Post Compression Rate Distortion(PCRD) Optimization in embedded block coding in JPEG2000,this paper proposes an effective method to promote coding efficiency-embedded block coding with prediction truncation based on regression analysis.This algorithm predicts the truncation points based on regression formula derived from linear regression analysis.It avoids scanning and encoding the bit-planes that can be truncated,and discards the time-consuming rate-distortion truncation processing,so that the algorithm is able to speed up the compression process.The experiment results show the considerable speed promotion.