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:
Jun. 03, 2025
Filed:
Nov. 04, 2022
Tencent America Llc, Palo Alto, CA (US);
Xin Zhao, San Diego, CA (US);
Xiaozhong Xu, State College, PA (US);
Xiang Li, Los Gatos, CA (US);
Shan Liu, San Jose, CA (US);
TENCENT AMERICA LLC, Palo Alto, CA (US);
Abstract
A method of video decoding includes receiving a coded video bitstream including a current picture, and performing an inverse quantization on a current block included in the current picture. The method further includes performing, after performing the inverse quantization, an inverse transform on the current block, and determining whether a predetermined condition is satisfied, and, in response a determination that the predetermined condition is satisfied, performing an inverse color transform on the current block. The inverse color transform comprises applying a constant offset to second and third color components of the current block, the constant offset is calculated by performing a left shift operation on a result of subtracting 1 from a bit-depth of an input sample.