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:
Apr. 01, 2025
Filed:
Jul. 25, 2023
Apple Inc., Cupertino, CA (US);
Hilmi Enes Egilmez, Santa Clara, CA (US);
Yunfei Zheng, Santa Clara, CA (US);
Alican Nalci, Cupertino, CA (US);
Yeqing Wu, Cupertino, CA (US);
Yixin Du, Cupertino, CA (US);
Guoxin Jin, San Diego, CA (US);
Alexandros Tourapis, Los Gatos, CA (US);
Jun Xin, San Jose, CA (US);
Hsi-Jung Wu, San Jose, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
Video coders and decoders perform transform coding and decoding on blocks of video content according to an adaptively selected transform type. The transform types are organized into a hierarchy of transform sets where each transform set includes a respective number of transforms and each higher-level transform set includes the transforms of each lower-level transform set within the hierarchy. The video coders and video decoders may exchange signaling that establishes a transform set context from which a transform set that was selected for coding given block(s) may be identified. The video coders and video decoders may exchange signaling that establishes a transform decoding context from which a transform that was selected from the identified transform set to be used for decoding the transform unit. The block(s) may be coded and decoded by the selected transform.