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:
Dec. 02, 2025
Filed:
Dec. 23, 2022
Beijing Dajia Internet Information Technology Co., Ltd., Beijing, CN;
Xiaoyu Xiu, San Diego, CA (US);
Yi-Wen Chen, San Diego, CA (US);
Tsung-Chuan Ma, San Diego, CA (US);
Hong-Jheng Jhu, San Diego, CA (US);
Wei Chen, San Diego, CA (US);
Xianglin Wang, San Diego, CA (US);
Bing Yu, Beijing, CN;
BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
Methods and devices are provided for rectifying a forward mapping coding bit length issue introduced by LMCS. In one method, a plurality of prediction samples, in a mapped domain, of luma component of a CU that is coded by a CIIP mode under LMCS framework is obtained, a plurality of residual samples, in the mapped domain, of the luma component of the CU is obtained, the plurality of prediction samples in the mapped domain is added to the plurality of residual samples in the mapped domain, resulting in a plurality of reconstructed samples, in the mapped domain, of the luma component, and the plurality of reconstructed samples of the luma component is converted from the mapped domain into an original domain based on a pre-defined plurality of inverse mapping scaling factors.