光学精密工程2013，Vol.21Issue(8)：2180-2186,7.DOI:10.3788/OPE.20132108.2180
精确质量控制的遥感图像JPEG2000压缩方法
JPEG2000 compression for remote sensing images with precise quality control
摘要
Abstract
A remote sensing image JPEG2000 compression scheme with precise quality control was proposed.According to the perfect reconstruction of wavelet filter banks and the statistical independence of subband coefficient quantization error,a mathematical expression formula was established to describe the relation between the peak signal to noise ratio and the wavelet coefficient quantization error.Based on the traditional JPEG2000 rate distortion model,a distortion-based rate minimization model was constructed and optimization truncation coding stream to obtain a desired target image compression quality was given.An experiment on standard test images and satellite remote sensing image was performed and obtained results were compared with that of the conventional rate-based distortion minimization JPEG2000 encoding.Results indicate that the new method has the same coding structure and computing complexity,and it can accurately control the compression image quality with an average control precision less than 1％.In addition,this proposed method has higher global compression image peak signal to noise ratio at the same total coding rate for sequence remote sensing images.关键词
遥感图像/图像压缩/图像质量/JPEG2000/小波变换Key words
remote sensing image/image compression/image quality/JPEG2000/wavelet transform分类
信息技术与安全科学引用本文复制引用
宋蓓蓓,孙文方..精确质量控制的遥感图像JPEG2000压缩方法[J].光学精密工程,2013,21(8):2180-2186,7.基金项目
国家自然科学基金资助项目(No.60902075,No.61271262) （No.60902075,No.61271262）
中央高校基本科研业务费专项资金资助项目(No.CHD2012JC067) （No.CHD2012JC067）
