Abstract：In this paper,a new similarity measure for SAR imagery based on local gradient ratio pattern is proposed.Firstly,we extract the gradient ratio pattern for each pixel.Secondly,the local gradient ratio pattern histogram(LGRPH)is computed.Finally,the similarity is obtained by utilizing K-L discrepancy to measure the distance of LGRPH.Experimental results based on simulated and real SAR images demonstrate that the proposed similarity measure is robust to the speckle noise and local gradient variation in SAR images.
项德良, 粟毅, 赵凌君, 唐涛, 陆军. 一种基于局部梯度比率特征度量SAR图像相似性的新方法[J]. 电子学报, 2014, 42(1): 9-13.
XIANG De-liang, SU Yi, ZHAO Ling-jun, TANG Tao, LU Jun. A New Algorithm for SAR Imagery Similarity Measure Based on Local Gradient Ratio Pattern. Chinese Journal of Electronics, 2014, 42(1): 9-13.
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2014, Vol. 42 
