图像压缩中EBCOT编码的并行优化  

Image Compression EBCOT Coding Parallel Optimization

作　　者：安然[1] 王浩全[1] 张秀林[1] 刘玉[1] 

机构地区：[1]中北大学信息与通信工程学院,太原030051

出　　处：《计算机与数字工程》2013年第12期1973-1976,共4页Computer & Digital Engineering

基　　金：山西省自然科学基金资助项目(编号:2011011015-2);中北大学仪器科学与动态测试技术教育部重点实验室青年基金项目资助

摘　　要：EBCOT编码是一种十分高效的小波系数编码方法,其作为JPEG2000压缩标准的核心思想,与SPIHT、EZW等编码方法相比既有相同之处,又有独到之面,它汲取了多年来图像编码算法发展中的精华部分,因此拥有非常显著的性能。论文论述了EBCOT编码的基本原理,对编码算法的不足之处进行了深入分析,在此基础上通过对小波系数的研究,提出了基于编码块的并行优化方案,并以实验结果证明其在图像压缩中的卓越表现。EBCOT encoding is a very efficient method of wavelet coefficientcoding. As the core of JPEG 2000 compresion standards, it has similarities and differences with encoding methods such as SPIHT, EZW. As it adopts best part of encoding algorithm development over the years, it possesses distingwished performance. In this paper, the basic principles of EBCOT coding are explained, and the short comings of coding algorithm are analyzed. Based on the research of wavelet coefficients, parallel optimization scheme is proposed based on coded blocks. The experiment proves that EBCO coding has good performances in image compression.

关 键 词：EBCOT 小波 图像压缩 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]