Poisson noise removal from images using the fast discrete Curvelet transform
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83,420 citations
"Poisson noise removal from images u..." refers methods in this paper
...Then we perform hard thresholding to detect the significant FDCT coefficients for a prespecified false detection rate (FDR) [10]....
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...A few important specifications of our experiments are: five scales and {8, 16, 16, 32, 32} directions (from coarse to fine) for the MSMD transforms except the first generation curvelet, for which four scales are used; the FDCT implementation based on frequency wrapping; images of size 256×256 and intensity in the range [0.9, 20]; and FDR = 10−3 and number of iterations in HSD = 5 [3]....
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2,603 citations
"Poisson noise removal from images u..." refers methods in this paper
...Two separate digital implementation of the second generation curvelets were proposed in [7]....
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...In this paper, we propose a strategy to combine the MS-VST with the second generation curvelet transform, specifically the fast discrete curvelet transform (FDCT) [7]....
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...Similarly, when compared to the NSCT, the FDCT is less redundant and has more frequency resolution and better directionality properties [7]....
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1,900 citations
"Poisson noise removal from images u..." refers background or methods in this paper
...In fact, the NMISE is very close to that of the NSCT and better than that of the SNSCT....
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...L Donoho, and the NSCT Toolbox prepared by A. L. Cunha, for conducting the simulations given in this paper....
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...4d), which is a semi nonsubsampled version of the NSCT [5], [6]....
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...The MS-VST+NSCT (Fig....
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...Recently, we have proposed [5] an MS-VST Poisson image denoising algorithm, based on the nonsubsampled contourlet transform (NSCT) [6]....
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1,633 citations
"Poisson noise removal from images u..." refers background or methods in this paper
...The curvelet transforms, first generation [4] as well as...
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...In [3], MS-VSTs were developed for the wavelet, ridgelet and first generation curvelet transforms [4], and the curvelet was shown to yield the best performance....
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1,567 citations
"Poisson noise removal from images u..." refers background in this paper
...second generation [8], provide a near-optimal sparse representation for images having discontinuities along C(2) (twice differentiable) curves....
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