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.

Date of Patent:
Oct. 08, 2019

Filed:

Jun. 28, 2013
Applicant:

Velos Media, Llc, Plano, TX (US);

Inventors:

Nguyen Nguyen, Waterloo, CA;

Dake He, Waterloo, CA;

David Flynn, Kitchener, CA;

Assignee:

VELOS MEDIA, LLC, Plano, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/126 (2014.01); H04N 19/134 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/186 (2014.01);
U.S. Cl.
CPC ...
H04N 19/134 (2014.11); H04N 19/126 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/46 (2014.11);
Abstract

Methods of encoding and decoding video in a low-fidelity mode are described. A coding unit level low-fidelity flag is present in the bitstream to signal whether low-fidelity mode is enabled for a particular coding unit or not. If enabled, then, for that coding unit, the chroma quantization parameter is determined using the luma quantization parameter adjusted by a low-fidelity-mode offset. If not enabled, then, for that coding unit, the chroma quantization parameter is determined using the luma quantization parameter without adjustment by the low-fidelity-mode offset. The chroma quantization parameter is then used in the scaling of quantized chroma transform domain coefficients. Use with luma or other video components is also proposed.


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