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:
Nov. 10, 2026
Filed:
Dec. 16, 2022
Kt Corporation, Gyeonggi-do, KR;
Sung Won Lim, Gyeonggi-do, KR;
KT CORPORATION, Gyeonggi-do, KR;
Abstract
An image decoding method according to the present disclosure comprises the steps of: determining whether sign prediction for at least one residual coefficient is applied; when it is determined that the sign prediction is applied, deriving a reconstruction block for each of sign combinations applicable to the at least one residual coefficient; calculating a cost of each of a plurality of reconstruction blocks; and obtaining a reconstruction block on the basis of sign prediction information about the at least one residual coefficient to which the sign prediction is applied, and the cost of each of the plurality of reconstruction blocks.
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