摘要
在高保真小波变换编码中,塔式网格矢量量化中塔的半径较大,经典算法的熵编码效率较低;为了提高熵编码的效率,本文提出了两种新的编码解码方案,其性能优于经典的算法。
In high fidelity wavelet transform coding, the radius of pyramid is large in pyramidal lattice vector quantization, which leads to low entropy coding efficiency in classical algorithm. In order to improve the efficiency, two encoding and decoding schemes are presented whose performance, are better than those of the classical algorithm.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1998年第12期37-40,共4页
Acta Electronica Sinica
基金
九五国防预研基金
国防科大试验技术基金