一种多波段组合的孤立噪声去除方法  

A Method of Removing Isolated Noises Based on Multi-band Image Combination

作　　者：曾湧[1] 陈世平[2] 于晋[1] 

机构地区：[1]中国资源卫星应用中心,北京100830 [2]中国空间技术研究院,北京100081

出　　处：《航天返回与遥感》2009年第2期26-29,36,共5页Spacecraft Recovery & Remote Sensing

摘　　要：首次提出了一种多波段组合的孤立噪声去除方法。文章在对图像进行中值滤波处理之前,先进行门限法的孤立噪声初步定位,设定孤立噪声为候选点;然后结合多波段图像数据对候选孤立噪声进行最终定位,只有当像元判断为真实的孤立噪声时,进行中值滤波处理;最后以中国一颗传输型卫星图像为例,检验了算法的有效性。A method of removing isolated noises based on multi - band combination was firstly presented. In this paper, the isolated noises were preliminarily positioned and set as candidate by threshold method before median filtering; then these candidate - isolated noises were checked combining multi - band image information. If the candidate - isolated noises were real isolated noises, they would be removed by median filter. In the end, we took the domestic transmission satellite as example, and checked the validity of this method.

关 键 词：多波段 孤立噪声 中值滤波 门限 航天遥感 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置] TP751[自动化与计算机技术—控制科学与工程]