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The availability of very high resolution (VHR) synthetic aperture radar (SAR) images, which can be acquired by satellites over the same geographical area with short repetition interval, makes the development of effective unsupervised change detection (CD) techniques very important. This paper proposes a hierarchical approach to CD in VHR SAR images for addressing surveillance applications, where VHR...
This paper proposes an approach to change detection in very high geometrical resolution (VHR) multitemporal SAR images for hot spot surveillance. The proposed approach is based on two concepts: i) the use of backscattering information extracted at different resolution levels; and ii) the use of prior information usually available on hot spots. Here the proposed approach is designed for the solution...
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