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Image registration is a key step in signal processing of interferometric SAR. Traditional real correlation method is a common and robust approach for InSAR images registration. When the distortion between the two SAR images is large and complex, the registration accuracy of this traditional method is limited. To enhance the registration accuracy, this paper proposes an improved registration strategy...
This paper provides a novel chaos-based image encryption algorithm with quadratic residue. The proposed scheme introduced a significant diffusion effect through a two-stage diffusion algorithm. In first-diffusion stage, we turn each pixel of the original image into 8 bits binary sequence, and apply Chebyshev map to shuffle the 8 bits binary sequence. In second-diffusion stage, we apply quadratic residue...
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