遥感图像统计特性与压缩算法性能关系分析

Analysis of the relationship between the statistical characteristics of sensed image and the performance of the image compression algorithm

根据图像小波分解系数的统计特性 ,建立遥感图像与普通图像的统计特性模型 .通过数据压缩比与视觉门限相互关系分析 ,研究视觉无失真条件下遥感图像数据最大极限压缩比 .

The statistical characteristics of wavelet transform c oefficients are analyzed and the models of the statistical characteristics for the sensed image and ordinary image are established. By analyzing the relations hip between the data compression ratio and the visual perceptual threshold, the ultimate compression ratio of the sensed image without visual perceptual distort ion is studied. The image compression experiments with real sensed images and o rdinary ones demonstrat the accuracy and effectiveness of the theroy.