深圳大学学报（理工版）2012，Vol.29Issue(5)：412-416,5.DOI:10.3724/SP.J.1249.2012.05412
基于位长四叉树的EZBC改进算法
An improved EZBC algorithm based on bit-length quadtree
摘要
Abstract
An improved embedded zeroblock coding ( EZBC ) and context modeling algorithm based on a bit length quadtree is proposed in this paper- The bit length quadtree is used to complete the coding process and create the output context for Arithmetic Coder.The same performance of compression is achieved as EZBC while the memory used during encoding decreased by more than 90% compared to that required in EZBC. The bit length quadtree can be used to quickly determine the location of the wavelet coefficients and their significance instead of the linked lists usually used in EZBC.The encoding speed is significantly increased,which is helpfui for its hardware implementation.关键词
图像编码/位长四叉树/离散小波变换/多媒体信号处理/图像处理/零块结构编码Key words
image coding/bit-length quadtree/discrete wavelet transforms/multmedia signal processing/image processing/ zeroblock code分类
信息技术与安全科学引用本文复制引用
王仁龙,阮双琛,刘承香,陈俊伟..基于位长四叉树的EZBC改进算法[J].深圳大学学报（理工版）,2012,29(5):412-416,5.基金项目
武器装备预研基金资助项目(914***101) （914***101）
深圳市双百计划资助项目 （）
