摘要： 讨论与具有良好性能的子带变换-S+P正变换相对应的S+P逆变换的硬件实现方案。结果表明,S+P(逆)变换不仅在LZC(Listless Zerotree Coding,无列表零树压缩编码算法)中起着非常重要的作用,而且与其它子带变换方法相比,该变换所涉及的运算都可以用逻辑移位和算术加减来实现,这使得硬件的实现成为可能。

关键词: 子带变换, S+P变换, S+P逆变换, 无列表零树压缩编码算法

Abstract: This paper mainly discusses the hardware implementation of the S+P inverse transformation, which is the inverse ()performance of S+P forward transform. The result shows S+Pinversetransform plays an important role in efficient LZC(listless ()zerotree coding ) algorithm . More important, compared with other subband transformations, the operation related to S+Pinversetransform can be implemented by logic shifting and arithmetic adding and minusing ,which makes the hardware implementation possible. ;;;

中图分类号: 

• TP391.4