高分遥感影像阴影检测与消除方法

A Approach of Shadow Detection and Removalfor High Resolution Image

为了精准地从高分遥感影像提取植被信息,需要消除遥感影像阴影。本文提出一种高分遥感影像波段最优组合阴影检测与基于颜色恒常的阴影消除技术,从而避免了阴影对提取植被信息的影响。采用覆盖城区QuickBird影像进行试验,结果表明,本文方法既能检测阴影,也能消除高分遥感影像阴影,是一种实用的遥感影像阴影处理方法。

In order to accurately extract the vegetation information from high resolution remote sensing image , eliminating shadows from image is necessary .A optimal band combination is obtained by using optimum index factor , and shadow is removed based on col-or constancy .The results show that the proposed method can both effectively detect shadows and remove shadows from high resolution remote sensing image , it is a practical shadow processing method for remote sensing image .