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We propose a novel algorithm for denoising Poisson-corrupted images, that performs a signal-adaptive thresholding of the undecimated Haar wavelet coefficients. A Poisson's unbiased MSE estimate is devised and adapted to arbitrary transform-domain pointwise processing. This prior-free quadratic measure of quality is then used to globally optimize a linearly parameterized subband-adaptive thresholding,...
A new subsquarewise threshold which value is related to the coefficients in the subsquare is proposed in this paper. By modeling the bandelet coefficients in each subsquare as a generalized Gaussian distribution (GGD) model, we propose a denoising algorithm based on the second generation orthogonal bandelets and subsquarewise threshold. It can guarantee the optimal approximation to edge by using the...
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