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:
Jan. 14, 2025
Filed:
Oct. 29, 2021
Tencent America Llc, Palo Alto, CA (US);
TENCENT AMERICA LLC, Palo Alto, CA (US);
Abstract
Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. In a method, prediction information for a current block is encoded. The prediction information indicates a secondary transform index, based on which a secondary transform core is determined. A first primary transform coefficient block is generated based on a primary transform core of the current block. A size of the first primary transform coefficient block is less than a size of the secondary transform core. A second primary transform coefficient block is generated based on the first primary transform coefficient block. A size of the second primary transform coefficient block equals the size of the secondary transform core. A secondary transform coefficient block is determined based on the second primary transform coefficient block and the secondary transform core. The current block is encoded based on the secondary transform coefficient block.