Integer transform matrix selection method in video coding and related integer transform method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 29, 2005
app pub date -
Mar 17, 2005
filing date -
Mar 18, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An integer transform method for image data compression in a video codec is provided. In compliance with the first Audio and Video Coding Standard (AVS) of China in which 8.times.8 DCT integer transform is adopted, an integer transform base selection method, which is used to evaluate the quality of transform bases with both de-correlation efficiency and energy concentration efficiency, is provided. Computation complexity is also considered in the selection procedure. Based on the method, two groups of 8.times.8 transform bases (5, 6, 4, 1) and (4, 5, 3, 1) are selected and a fast transform algorithm for these two groups is provided.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully