几种SAR影像斑点噪声滤波器的快速实现算法

Sevral Fast Filter Algorithms Programmed by C++ Language for SAR Image's Speckle Suppressing

本文提出了用C ++语言在计算机软件工程中几种经典滤波快速实现的算法 ,在程序设计中充分考虑了滤波程序运行涉及的窗口数据迭代重复性问题 ,折中了海量遥感图像数据读写交互与计算机缓存有限性的问题。与遥感处理商用软件———ERDAS同名滤波器处理同幅图像的速率对比得出 ,经过改进后的滤波程序明显快于ERDAS同名滤波器的处理。

This paper suggest several fast filter algorithms programmed by C++language in software project。In the programe's frame,the problem about the iteration of filter window in procession of programe's running are took into ac-count fully and the difference between enormous times of readin or writing out the huge data of image and the limitation of computer's buffer is split aptly。To evaluate this program's speed and the quality of filtering,we contrast them with the same filter application in ERDAS Image which is the most popular commercial software for remote sensing at the present time。In conclusion,the improved programe's application runs more fast than ERDAS's.