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Change detection using multi-temporal SAR images is one of the most important applications of remote sensing technology. A new method for unsupervised change detection in urban area with multi-temporal SAR images is proposed in this paper. The method operates in two steps: change measures computation and unsupervised 2-D thresholding. In the first step, two change measures, backscattering intensity...
A novel Information change detection method for SAR images processing was proposed, which is based on the entropy theory. The entropy image is an alternative image for Information change detection comparing with the coherence map. The entropy is calculated pixel by pixel using a linear combination of the images cross-covariance matrix eigenvalues. The relationship between the entropy and coherence...
The range-doppler (R-D) model, which requires no reference points and is independent of satellite attitude knowledge and control, is used to determine the location of SAR image. However, the error of R-D model has not been analyzed. This paper investigates the effects of the pixel positioning accuracy of SAR images on uncertain measurement errors such as range measurement, Doppler center frequency...
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