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:
Feb. 18, 2025

Filed:

Sep. 30, 2022
Applicant:

Tencent Technology (Shenzhen) Company Limited, Shenzhen, CN;

Inventor:

Liqiang Wang, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/44 (2014.01); H04N 19/126 (2014.01); H04N 19/176 (2014.01); H04N 19/91 (2014.01);
U.S. Cl.
CPC ...
H04N 19/126 (2014.11); H04N 19/176 (2014.11); H04N 19/44 (2014.11); H04N 19/91 (2014.11);
Abstract

A video decoding method includes: performing entropy decoding processing on an encoding block of a video image frame to obtain a quantized coefficient block of residual data corresponding to the encoding block; calculating quantization coefficients in the quantized coefficient block to obtain an implicitly derived index value; determining a transformation mode of the encoding block according to the implicitly derived index value and a value of an index identifier included in the encoding block; and performing inverse transformation processing on an inverse quantization result of the quantized coefficient block based on the transformation mode of the encoding block.


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