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:
Oct. 06, 2026

Filed:

Jul. 24, 2024
Applicant:

Nokia Technologies Oy, Espoo, FI;

Inventors:

Sunmi Yoo, Seoul, KR;

Jungah Choi, Seoul, KR;

Seunghwan Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/46 (2014.01); H04N 19/103 (2014.01); H04N 19/136 (2014.01); H04N 19/176 (2014.01);
U.S. Cl.
CPC ...
H04N 19/46 (2014.11); H04N 19/103 (2014.11); H04N 19/136 (2014.11); H04N 19/176 (2014.11);
Abstract

A video decoding method performed by a decoding apparatus, according to the present document, comprises the steps of: receiving residual information for a current block; deriving a context model for a sine flag of a current residual coefficient in a current sub-block of the current block; decoding the sine flag on the basis of the context model; deriving the current residual coefficient on the basis of the sine flag; deriving a residual sample on the basis of the current residual coefficient; and generating a reconstructed picture on the basis of the residual sample, wherein the context model for the sine flag is derived on the basis of a sine flag of a residual coefficient decoded before the current residual coefficient in the current sub-block.


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