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:
Aug. 12, 2025
Filed:
May. 24, 2024
Electronics and Telecommunications Research Institute, Daejeon, KR;
Chips & Media, Inc, Seoul, KR;
Sung Chang Lim, Daejeon, KR;
Jung Won Kang, Daejeon, KR;
Ha Hyun Lee, Seoul, KR;
Jin Ho Lee, Daejeon, KR;
Hui Yong Kim, Daejeon, KR;
Dae Yeon Kim, Seoul, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
CHIPS & MEDIA, INC, Seoul, KR;
Abstract
Disclosed herein is a method of encoding/decoding an image. The image decoding method includes decoding information on a quantization matrix from a bitstream, acquiring a quantization matrix of a current block based on the information on the quantization matrix, and dequantizing the current block using the quantization matrix of the current block. The acquiring of the quantization matrix of the current block includes deriving a single identifier using at least one of a size of the current block, a prediction mode or a color component, and acquiring the quantization matrix of the current block based on the single identifier.