SYSTEM AND METHOD FOR ADAPTIVE DISCRETE COSINE TRANSFORM (DCT) NOISE FILTERING FOR DIGITAL IMAGES

SYSTEM AND METHOD FOR ADAPTIVE DISCRETE COSINE TRANSFORM (DCT) NOISE FILTERING FOR DIGITAL IMAGES

A method includes dividing an image into overlapping image patches each having a specified size. The method also includes analyzing content of each image patch using a mathematical transform technique to classify each image patch into at least one class. The method further includes filtering each im...

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Hauptverfasser: Sheikh, Hamid R, Nadir, Zeeshan, Glotzbach, John W
Format: Patent
Sprache:eng
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CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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creator Sheikh, Hamid R
Nadir, Zeeshan
Glotzbach, John W
description A method includes dividing an image into overlapping image patches each having a specified size. The method also includes analyzing content of each image patch using a mathematical transform technique to classify each image patch into at least one class. The method further includes filtering each image patch for noise suppression by suppressing one or more transform coefficients of the image patch. An amount of suppression for each of the one or more transform coefficients is selected according to the at least one class of the image patch. In addition, the method includes reconstructing the filtered image patches into an output image.
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subjects CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
title SYSTEM AND METHOD FOR ADAPTIVE DISCRETE COSINE TRANSFORM (DCT) NOISE FILTERING FOR DIGITAL IMAGES
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