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:
Apr. 21, 2020
Filed:
Jul. 17, 2018
Method based on coding tree unit level rate-distortion optimization for rate control in video coding
Tfi Digital Media Limited, Hong Kong, HK;
Mingliang Zhou, 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;
Hon Tung Luk, Hong Kong, HK;
Hok Kwan Cheung, Hong Kong, HK;
Yiu Fai Yuen, Hong Kong, HK;
TFI Digital Media Limited, Hong Kong, HK;
Abstract
A method based on CTU level rate-distortion optimization for rate control in video coding which can effectively improve the perceptual rate-distortion performance and coding efficiency is provided. Firstly, a perceptual rate-distortion model is established using a divisive normalization framework, which characterizes the relationship between local visual quality and coding bits. Subsequently, the established perceptual rate-distortion model is applied to overall distortion optimization which is transformed into a global optimization problem and solved with convex optimization algorithms to obtain optimal CTU level coding bit allocation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile