METHODS AND APPARATUSES FOR ADJUSTING MACROBLOCK QUANTIZATION PARAMETERS TO IMPROVE VISUAL QUALITY FOR LOSSY VIDEO ENCODING
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Mar 5, 2015
app pub date -
Aug 27, 2013
filing date -
Aug 27, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method of encoding is provided. The method includes generating transform coefficients corresponding to macroblocks of video data, at least in part using a transform unit. The method also includes calculating a visual quality importance index for each of the macroblocks, wherein the visual quality importance index reflects a relative importance of the respective macroblock to subjective image quality. The method further includes receiving initial quantization parameters for the macroblocks from a rate control unit; dynamically adjusting the quantization parameters based, at least in part, on the visual quality importance index; and quantizing the transform coefficients using the dynamically adjusted quantization parameters.
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