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. 05, 2025
Filed:
Apr. 05, 2024
Method for determining color difference component quantization parameter and device using the method
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Sung Chang Lim, Daejeon, KR;
Hui Yong Kim, Daejeon, KR;
Se Yoon Jeong, Daejeon, KR;
Jong Ho Kim, Daejeon, KR;
Ha Hyun Lee, Seoul, KR;
Jin Ho Lee, Daejeon, KR;
Jin Soo Choi, Daejeo, KR;
Jin Woong Kim, Daejeon, KR;
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Abstract
Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.