遥感图像边缘检测的不确定性及其处理方法探讨

The Analysis of Edge Detection Uncertainty of Remote Sensing Images and its Processing Method

遥感图像边缘检测是遥感图像处理领域的难点和热点,多种不确定性因素造成边缘像元的位移和变形,影响了遥感图像边缘检测的进展。本文较系统地总结了影响遥感图像边缘检测的不确定性因素,从噪声、随机性和模糊性、尺度效应、混合像元以及光谱的不确定性等几个方面进行具体阐述,并指出了遥感图像边缘检测不确定性的研究重点与发展方向。

The edge detection is a hot and difficult topic in the field of remote sensing information processing.Various uncertain factors cause displacement and deformation of the edge pixel,thus affect the development of edge detection of remote sensing information.This paper comments on the uncertain factors existing in remote sensing edge detection systematically,including noise,randomness,ambiguity,scale effect,mixed pixels and the uncertainty of spectrum,and points out the emphases and development direction of the uncertainty of remote sensing edge detection.