SAR change detection based on intensity and texture changes |
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Institution: | 1. Key Laboratory of Intelligent Perception and Image Understanding of Ministry of Education, Xidian University, Xi’an 710071, China;2. School of Computer Science and Technology, Xidian University, Xi’an 710071, China;3. School of Electronic Engineering, Xidian University, Xi’an 710071, China |
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Abstract: | In this paper, a novel change detection approach is proposed for multitemporal synthetic aperture radar (SAR) images. The approach is based on two difference images, which are constructed through intensity and texture information, respectively. In the extraction of the texture differences, robust principal component analysis technique is used to separate irrelevant and noisy elements from Gabor responses. Then graph cuts are improved by a novel energy function based on multivariate generalized Gaussian model for more accurately fitting. The effectiveness of the proposed method is proved by the experiment results obtained on several real SAR images data sets. |
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Keywords: | Change detection Multivariate generalized Gaussian model Robust principal component analysis Graph cuts Synthetic aperture radar |
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