JPEG2000标准中ROI感兴趣区域编码的改进算法

The Improved Rithmetic of ROI in JPEG2000

分析了小波压缩的相关理论知识,着重对JPEG2000系统中的ROI功能进行了研究,实现了ROI的构思和实用算法,给出了性能分析,进而分析了目前ROI算法的局限性并给出了ROI的改进算法,做出了相应的实验结果分析。

This article contains some research on JPEG2000 standard,especially ROI arithmetic,and analyses every module in the JPEG2000 encoding/decoding system.ROI＇s principle and ROI＇s ＂fast arithmetic—MAXSHIFT＂ are presented.We discussed the effect and limitation of ROI in its application and found a way to improve the ROI algorithem.