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:
Jul. 30, 2013
Filed:
Mar. 26, 2007
Thomas W. Holcomb, Bothell, WA (US);
Minghui Xia, Bellevue, WA (US);
Chih-lung Lin, Redmond, WA (US);
Cheng Chang, Redmond, WA (US);
Thomas W. Holcomb, Bothell, WA (US);
Minghui Xia, Bellevue, WA (US);
Chih-Lung Lin, Redmond, WA (US);
Cheng Chang, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Techniques and tools are described for adaptive deadzone ('DZ') resizing during quantization. For example, in some embodiments, for quantization of an AC frequency coefficient of a block, a video encoder adjusts DZ size of a selected quantizer depending on the texture of the block. In other embodiments, a video encoder adjusts DZ size depending on the frequency of a coefficient being quantized. In still other embodiments, for quantization of an AC frequency coefficient of a block, a video encoder adjusts DZ size depending on the texture of the block and the frequency of the coefficient being quantized.