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:
Aug. 24, 2021
Filed:
May. 31, 2019
Applicant:
Ati Technologies Ulc, Markham, CA;
Inventors:
Assignee:
ATI TECHNOLOGIES ULC, Markham, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 11/02 (2006.01); H04N 19/14 (2014.01); H04N 19/176 (2014.01); H04N 19/196 (2014.01); H04N 19/33 (2014.01);
U.S. Cl.
CPC ...
H04N 19/14 (2014.11); H04N 19/176 (2014.11); H04N 19/197 (2014.11); H04N 19/33 (2014.11);
Abstract
A processing system analyzes pixel activity levels of blocks of a picture at a plurality of spatial scales and/or dynamic ranges to generate a multi-scale metric that indicates how bit allocation or assignment of a given quantization parameter (QP) will affect the perceptual quality of the block. Blocks that have similar multi-scale metrics are likely to be visually similar and to benefit from similar bit allocations or QPs. Based on the multi-scale metric, an encoder encodes each block of the picture with a QP and/or a number of bits.