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:
Jun. 01, 2021
Filed:
Mar. 15, 2020
Tfi Digital Media Limited, Hong Kong, HK;
Yiu Fai Yuen, Hong Kong, HK;
Mingliang Zhou, Hong Kong, HK;
Xuekai Wei, Hong Kong, HK;
Shiqi Wang, Hong Kong, HK;
Sam Tak Wu Kwong, Hong Kong, HK;
Chi Keung Fong, Hong Kong, HK;
Hon Wah Wong, Hong Kong, HK;
TFI Digital Media Limited, Hong Kong, HK;
Abstract
A method for video coding with global rate-distortion optimization-based rate control (RC) is provided. By using this video coding method, an RC scheme for High dynamic range (HDR) in High Efficiency Video Coding (HEVC) is provided. Briefly, considering the characteristics of HDR image content, a rate-distortion (R-D) model based on HDR-Visual Difference Predictor (VDP)-2 for performance optimization is provided. In the optimization process, the λ is directly utilized rather than the bit rate to obtain the globally optimal solution. Finally, the model parameter estimation method is used to reduce errors. The video coding method of the present invention is verified that bit rate reduction on average can be achieved.