Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images

The shape-adaptive discrete cosine transform (SA-DCT) transform can be computed on a support of arbitrary shape, but retains a computational complexity comparable to that of the usual separable block-DCT (B-DCT). Despite the near-optimal decorrelation and energy compaction properties, application of...

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Vydáno v:	IEEE transactions on image processing Ročník 16; číslo 5; s. 1395 - 1411
Hlavní autoři:	Foi, A., Katkovnik, V., Egiazarian, K.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.05.2007 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Algorithms Anisotropic Applied sciences Artificial Intelligence Blocking Coding, codes Color Colorimetry - methods Computation Computational complexity Computer Graphics Confidence intervals deblocking Decorrelation denoising deringing Detection, estimation, filtering, equalization, prediction discrete cosine transform (DCT) Discrete cosine transforms Discrete transforms Estimates Exact sciences and technology Filtering Filtration Fourier Analysis Gray-scale Image Enhancement - methods Image Interpretation, Computer-Assisted - methods Image processing Image reconstruction Information Storage and Retrieval - methods Information, signal and communications theory Miscellaneous Noise reduction Numerical Analysis, Computer-Assisted Shape shape adaptive Signal and communications theory Signal processing Signal Processing, Computer-Assisted Signal, noise Studies Telecommunications and information theory Transforms Video coding State of the art Grey level image Image processing Noise reduction Polynomial approximation Data compression Anisotropic Artefact discrete cosine transform (DCT) Video signal processing denoising Image coding deringing Arbitrary shape body Decorrelation Discrete cosine transforms Filtering deblocking Image compression Computational complexity Color image Confidence interval Luminance Simulation Signal processing shape adaptive Image denoising
ISSN:	1057-7149, 1941-0042
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