Method and device for encoding and decoding a digitized image

Image analysis – Image compression or coding – Interframe coding

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C382S232000, C382S250000

Reexamination Certificate

active

09423458

ABSTRACT:
For an edge image block, the DC part of the encoding information of the picture elements contained in the edge image block is separately determined and is subtracted from the encoding information of the picture elements of the edge image block, as a result whereof an enhanced coding efficiency is achieved.

REFERENCES:
patent: 5631977 (1997-05-01), Koshi et al.
patent: 5719961 (1998-02-01), Normile et al.
patent: 5974184 (1999-10-01), Eifrig et al.
patent: 5990956 (1999-11-01), Lee
patent: 5991453 (1999-11-01), Kweon et al.
patent: 5995668 (1999-11-01), Corset et al.
patent: 6035073 (2000-03-01), Kaup
patent: 6115503 (2000-09-01), Kaup
patent: 6208768 (2001-03-01), Pandel et al.
patent: 6272254 (2001-08-01), Kaup
patent: 6341144 (2002-01-01), Haskell et al.
patent: 6408025 (2002-06-01), Kaup
patent: 6452970 (2002-09-01), Kaup
patent: OS 37 28 444 (1989-09-01), None
patent: OS 39 25 663 (1991-07-01), None
patent: 0 739 141 (1996-10-01), None
patent: 0 871 335 (1998-10-01), None
patent: 07240922 (1995-09-01), None
patent: 08294119 (1996-05-01), None
patent: 09214971 (1997-08-01), None
Itoh et al, Adaptive Transform Coding of Images Based on Variable-Shape-Blocks.
Bi et al, Discrete Cosine Transform.
Kauff et al, “An Extension of Shape-Adaptive DCT (SA-DCT) Toward DC Separation and ΔDC Correction”.
Sikora et al, Shape-Adaptive DCT for Generic Coding of Video.
Le Gall, “MPEG: A Video Compression Standard For Multimedia Applications”.
Wallace, “The JPEG Still Picture Compression Standard”.
Liou, “Overview of the PX64 kbit/s Video Coding Standard”.
ITU-T Draft H.263, “Video Coding For Low Bitrate Communication”.
Netravali et al, “Motion-Compensated Television Coding: Part 1”.
ISO/IEC JTC1/SC29/WG11, “MPEP-4 Video Verification Model Version 2.0”.
I. Matsuda and S. Itoh, “DCT coding of still images based on variable-shape-blocks”, Proceedings of 5thInternational Conference on High Technology, World Techno Fair in Chiba '96, Sep. 11, 1996; p. 204-211.
T. Sikora “Low complexity shape-adaptive DCT for coding of arbitrarily shaped image segments”, Signal Processing: Image Communication, Elsevier, vol. 7. No. 4-6, Nov. 1995, p. 381-395.
D-146 Matsuda, Ichiro et al. “A Study on Transform Image Coding Based on Variable Shape Blocks Using DCT” Faculty of Science and Technology, Schience University of Tokyo, 1992.
MPEG-4 Video Verification Model Version 7.0, ISO/IEC JTC1/SC29/WG11, MPEG97/N1642, XP002144264, pp. 56-60, Apr. 1997.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and device for encoding and decoding a digitized image does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for encoding and decoding a digitized image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for encoding and decoding a digitized image will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3848928

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.