Image analysis – Image enhancement or restoration – Edge or contour enhancement
Patent
1997-10-10
2000-04-18
Rogers, Scott
Image analysis
Image enhancement or restoration
Edge or contour enhancement
382275, 358463, 348608, G06K 940, G06T 500, H04N 521, H04N 1409
Patent
active
060524901
ABSTRACT:
A video encoding method and apparatus is shown wherein image information is represented as a plurality of pixels, the pixels are organized into blocks, pixels transposition is performed on image information at the boundaries of the blocks, the blocks are transform coded and quantized. Pixel transposition involves transposition of alternate pixels at the boundaries of blocks with pixels of neighboring blocks found in a pre-determined direction. The pre-determined direction may be fixed by a system or may be applied on an image by image basis. In the event that the pre-determined direction is not established by a system, a pixel transposition circuit includes a transposition keyword in the output bit stream which is used by a decoded to determine the direction of pixel transposition.
REFERENCES:
patent: 5454051 (1995-09-01), Smith
patent: 5619591 (1997-04-01), Tsang et al.
patent: 5757969 (1998-05-01), Kim
patent: 5764805 (1998-06-01), Martuci et al.
patent: 5818532 (1998-10-01), Malladi et al.
patent: 5850294 (1998-12-01), Aposolopoulos et al.
patent: 5852682 (1998-12-01), Kim
patent: 5881180 (1999-03-01), Chang et al.
International Organization for Standardisation; Generic Coding of Moving Pictures and Associated Audio Information: Video; Recommendation H.262; ISO/IEC 13818-2 JTC1/SC29/WG11 N0702(revised) Incorporationg N702 Delta of March 24 and Further Editorial Corrections May 10, 1994.
International Organization for Standardisation; MPEG-4 Video Verification Model Vesion 2.1; ISO/IEC JTC1/SC29/WG11 XXXX of May 3, 1996.
International Organization for Standardisation; Working Draft 4.0 of ISO/IEC 14496-2; ISO/IEC JTC1/SC29/WG11 N1797; MPEG97/Stockholm, Jul. 1997 .
Haskell Barin Geoffry
Puri Atul
Schmidt Robert Louis
AT&T Corp.
Rogers Scott
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