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:
Oct. 07, 2014
Filed:
Jul. 26, 2011
Shankar Regunathan, Bellevue, WA (US);
Sridhar Srinivasan, Redmond, WA (US);
Jie Liang, Coquitlam, CA;
Chih-lung Lin, Redmond, WA (US);
Minghui Xia, Bellevue, WA (US);
Shankar Regunathan, Bellevue, WA (US);
Sridhar Srinivasan, Redmond, WA (US);
Jie Liang, Coquitlam, CA;
Chih-Lung Lin, Redmond, WA (US);
Minghui Xia, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Techniques and tools are described for flexible range reduction of samples of video. For example, an encoder signals a first set of one or more syntax elements for range reduction of luma samples and signals a second set of one or more syntax elements for range reduction of chroma samples. The encoder selectively scales down the luma samples and chroma samples in a manner consistent with the first syntax element(s) and second syntax element(s), respectively. Or, an encoder signals range reduction syntax element(s) in an entry point header for an entry point segment, where the syntax element(s) apply to pictures in the entry point segment. If range reduction is used for the pictures, the encoder scales down samples of the pictures. Otherwise, the encoder skips the scaling down. A decoder performs corresponding parsing and scaling up operations.