DocumentCode
2692103
Title
Distortion estimation in CBR channel and its application for H.264 rate control
Author
Shin, IlHong ; Yoo, Jungju ; Hong, Jinwoo
Author_Institution
Electron. Telecommun. Res. Inst., Daejeon
fYear
2008
fDate
June 23 2008-April 26 2008
Firstpage
689
Lastpage
692
Abstract
When a video sequence is compressed with rate control for a constant bit rate (CBR) channel, the visual quality usually fluctuates according to image complexity. We introduced distortion models under the CBR condition to predict distortion during rate control. The paper also proposes a control method for improvement of visual quality in H.264 CBR condition. In the experiments, we analyzed the peak signal-to-noise ratio (PSNR), the variance of the PSNR, and the average difference of the PSNR between adjacent frames for various video sequences. Our method demonstrates a more stable visual quality without severe PSNR degradation.
Keywords
channel estimation; video streaming; CBR channel; H.264 rate control; constant bit rate; distortion estimation; peak signal-to-noise ratio; Analysis of variance; Bit rate; Degradation; Image coding; Image sequence analysis; PSNR; Predictive models; Rate distortion theory; Signal analysis; Video sequences;
fLanguage
English
Publisher
ieee
Conference_Titel
Multimedia and Expo, 2008 IEEE International Conference on
Conference_Location
Hannover
Print_ISBN
978-1-4244-2570-9
Electronic_ISBN
978-1-4244-2571-6
Type
conf
DOI
10.1109/ICME.2008.4607528
Filename
4607528
Link To Document