Abstract：The high frequency part of wavelet transform reflects the detail of edges. And median filter is a kind of nonlinear stack filter, it has good abilities in keeping edge and filtering clutter. Based on the analysis of the characteristics of the images of Synthetic Aperture Radar (SAR), this paper puts forward a combined method for edge s detection of SAR images. This method is composed of wavelet transform, fuzzy median filter, adaptive thresholding and differential gradient operator. In using fuzzy median filter, this paper gives out a new method for adaptive selecting the factors of fuzzy median filter. The experimental results show the effectiveness and stability of this method.
赵志钦; 韩春林; 王建国; 黄顺吉. 一种新的SAR图像的边沿检测方法研究[J]. 电子与信息学报, 2001, 23(7): 625-630 .
Zhao Zhiqin; Han Chunlin; Wang Jianguo; Huang Shunji . A NEW APPROACH TO EDGE DETECTION OF SAR IMAGES. , 2001, 23(7): 625-630 .
2001, Vol. 23 
