METHOD BASED ON GLOBAL RATE-DISTORTION OPTIMIZATION FOR RATE CONTROL IN VIDEO CODING
Patent №
US 11,025,914
Granted
2021-06-01
Filed 2020
Owner
TFI DIGITAL MEDIA LIMITED
Lab
—
AI components
3
ml · vision · evo
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
16819164
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.
AI classification
Ownership
TFI DIGITAL MEDIA LIMITED
assignment · 521180839
Assignors
YUEN, YIU FAI, ZHOU, MINGLIANG, WEI, XUEKAI, WANG, SHIQI, KWONG, SAM TAK WU, FONG, CHI KEUNG, WONG, HON WAH
On an employer assignment, the assignors are typically the inventors.