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. 11, 2025
Filed:
Oct. 21, 2022
Huawei Technologies Co., Ltd., Guangdong, CN;
Hu Chen, Munich, DE;
Elena Alexandrovna Alshina, Munich, DE;
Weiwei Xu, Shenzhen, CN;
Quanhe Yu, Shenzhen, CN;
Yichuan Wang, Shenzhen, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
This application provides a high dynamic range HDR video processing method, an encoding device, and a decoding device. The method includes: obtaining dynamic metadata of an NHDR video frame according to a dynamic metadata generation algorithm; calculating a tone-mapping (tone-mapping) curve parameter of the NHDR video frame based on the dynamic metadata of the NHDR video frame; generating a tone-mapping curve based on the curve parameter; determining, according to a quality assessment algorithm, distortion D' caused by the tone-mapping curve; comparing D′ and D, to determine a mode used by the NHDR video frame, where the mode is an automatic mode or a director mode, and Dis a threshold value; and determining metadata of the NHDR video frame based on the determined mode used by the NHDR video frame.