Overview of Edge Detection in SAR Images
SAR图像边缘检测方法综述

Edge detection is a fundamental issue in synthetic aperture radar(SAR)image interpretation.The multiplicative noise makes edge detection in SAR image extremely difficult,and the typical edge detectors based on gradients are inefficient when applied to SAR images.So developing edge detectors especially for SAR image is of great importance.This paper investigates the problem of edge detection for SAR images comprehensively and thoroughly.It first describes the problem of edge detection for SAR images,and then discusses several well-known edge detection methods and two key points in SAR image edge detection-edge thinning and localization.To evaluate edge detector quantitatively,some performance criteria are summarized.In the end of this paper,conclusions are made and the possible future work is explained.