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. 17, 2021
Filed:
Oct. 12, 2017
Qualcomm Incorporated, San Diego, CA (US);
Cheng-Teh Hsieh, Del Mar, CA (US);
Vadim Seregin, San Diego, CA (US);
Xin Zhao, San Diego, CA (US);
Amir Said, San Diego, CA (US);
Vijayaraghavan Thirumalai, San Diego, CA (US);
Marta Karczewicz, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A video coding device (e.g., a video encoder or a video decoder) is configured to perform various transformations on video data. The video coding device applies a primary transform to a block of the video data, the primary transform having a first size, and the sub-block being at least a portion of the block. The video coding device determines whether application of a secondary transform, having a second size, to a sub-block of the block is allowed. Application of the secondary transform is disallowed when the first size is equal to the second size. Based on the application of the secondary transform being allowed, the video coding device applies the secondary transform to the sub-block. Application of the primary transform and the secondary transform construct a residual block in a pixel domain.