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A new algorithm for suppressing speckle in synthetic aperture radar (SAR) images was proposed based on the local statistical property of wavelet coefficients. This method modeled the distribution of wavelet coefficients as an adaptive Gaussian mixture model. This model took into account geometrical structures of the coefficients within one scale and it was adaptive to the wavelet subbands corresponding...
Due to the fact that it is not easy to filter out the overlap noise between noisy signal and noise using the traditional method of wavelet denoising, an adaptive filter model based on the wavelet transform is constructed. In this model, the adaptive filter is used to filter out noise secondary on the basis of first wavelet denoising on the original noisy signal. The experimental results show that...
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