Method for processing compressed image data for reducing blocking artefacts

A method for post-processing compressed image data for reducing blocking artefacts is suggested, in which a set of primary image data (PID) is decomposed into data sets (IID1, IID2) containing the fine structure of the image with structure being smaller than the blocking artefacts and without the bl...

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Bibliographic Details
Main Author JOSTSCHULTE KLAUS
Format Patent
LanguageEnglish
Published 07.02.2002
Edition7
Subjects
BASIC ELECTRONIC CIRCUITRY
CALCULATING
CODE CONVERSION IN GENERAL
CODING
COMPUTING
COUNTING
DECODING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:A method for post-processing compressed image data for reducing blocking artefacts is suggested, in which a set of primary image data (PID) is decomposed into data sets (IID1, IID2) containing the fine structure of the image with structure being smaller than the blocking artefacts and without the blocking artefacts and structures being larger than or comparable to the blocking artefacts as well as the blocking artefacts, respectively. In the decomposition of the primary image data (PID) a non-linear filtering process (F1) is involved. After decomposition of the primary image data (PID) a filtering process (F3) can be applied to the set of intermediate image data (IID2) containing larger details of the image as well as the blocking artefacts. Therefore, in the process of filtering out the blocking artefacts, the fine structure of the image is not influenced.
Bibliography:Application Number: US20010882384