通信学报2012，Vol.33Issue(6)：143-149,7.
H.264中率失真代价估计模型研究
Research on rate-distortion cost estimation model for H.264
摘要
Abstract
A new rate distortion cost estimation model was proposed. To provide more accurate estimation of the number of coding bits for encoding intra / inter macro blocks,firstly a new bit rate estimation model was proposed. The rate estimation was a linear combination of existing coding parameters,which were more accurately related to entropy coding and transform coefficients. Secondly a new rate distortion cost estimation model which had superior performance was given. Finally,a detailed analysis on the rate distortion cost estimation model from many aspects such as the effect and the performance was taken. Experimental results show that the encoding speed is greatly accelerated in ensuring little change both in PSNR and coding bits.关键词
H.264/率失真优化/代价估计/码率估计/自适应可变长编码Key words
H.264/rate distortion optimization/cost estimation/bit rate estimation/adaptive variable-length coding分类
信息技术与安全科学引用本文复制引用
郑新资,孙知信..H.264中率失真代价估计模型研究[J].通信学报,2012,33(6):143-149,7.基金项目
国家自然科学基金资助项目(60973140,61170276) （60973140,61170276）
江苏省自然科学基金资助项目(BK2009425) （BK2009425）
江苏省青蓝工程基金资助项目 （）
江苏省六大人才高峰基金资助项目 （）
