The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2017
Filed:
Nov. 07, 2012
Applicant:
Matrox Graphics Inc., Dorval, CA;
Inventors:
Jean-Jacques Ostiguy, Montreal, CA;
Simon Garneau, Coteau-du-Lac, CA;
Bernard Antaki, Montreal, CA;
Alain Champenois, Montreal, CA;
Assignee:
MATROX GRAPHICS INC., Dorval, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 7/32 (2006.01); H04N 19/136 (2014.01); H04N 19/61 (2014.01);
U.S. Cl.
CPC ...
H04N 19/136 (2014.11); H04N 19/61 (2014.11);
Abstract
There is described herein motion-based adaptive quantization for compressing video streams. Motionless portions of pictures are detected and the compression quality of these portions is increased while the compression quality of non-motionless portions is decreased. The QP of a portion of image data, such as a macroblock, is modified for successive motionless portions from a start QP to a target QP in accordance with a multi-step change.