遥感变化检测方法探讨

通过分析直接比较变化检测方法的局限性,提出边缘特征的变化检测方法.通过比较边缘提取算法,小波变换和Sobel算子、Log算子、Canny算子的优缺点,并结合实验所用的遥感图像,最终选取基于小波变换的方法.以某地不同时期的遥感图像为例,采用直接比较法和基于小波边缘特征检测方法,对两个时相的图像分别进行变化特征的检测,并对...

Investigate of Remote Sensing Change Detection Method

This paper presents a change detection method based on linear features,by analyzing the limitations of the methods proposed change detection method.we choose approach based on wavelet transform with comparing the advantages and disadvantages of the linear features detection algorithm,involving wavelet transform and the Sobel operator,Log operator,Canny operator,and combining needs of remote sensing laboratory Images.We process remote sensing images that are a certain place in tow different periods,with both...