Adaptive rate-distortion optimization using perceptual hints

Chun-Jen Tsai*, Chih Wei Tang, Ching Ho Chen, Ya Hui Yu

*此作品的通信作者

研究成果: Conference contribution同行評審

21 引文 斯高帕斯(Scopus)

摘要

A novel video coding approach that performs adaptive rate-distortion optimization guided by perceptual hints is proposed in this paper. The key idea is to adoptively adjust the Lagrange multipliers of the RDO coder control module based on visual attention analysis. The observation is that human vision is sensitive to movement of well structured objects while tolerates large distortion in moving areas with random structure (texture-wise and motion-wise). The proposed algorithm analyzes permissible perceptual distortions and, accordingly, assigns larger Lagrange multipliers to regions that are perceptually less sensitive to distortion so that rate-reduction is weighted more than distortion reduction in these regions. Experiments show that this scheme achieves bit-rate saving of 5-7% with virtually same perceptual quality and is very promising for practical systems.

原文English
主出版物標題2004 IEEE International Conference on Multimedia and Expo (ICME)
頁面667-670
頁數4
DOIs
出版狀態Published - 1 12月 2004
事件2004 IEEE International Conference on Multimedia and Expo (ICME) - Taipei, Taiwan
持續時間: 27 6月 200430 6月 2004

出版系列

名字2004 IEEE International Conference on Multimedia and Expo (ICME)
1

Conference

Conference2004 IEEE International Conference on Multimedia and Expo (ICME)
國家/地區Taiwan
城市Taipei
期間27/06/0430/06/04

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