Title :
Adaptive video coding rate control for better perceived picture quality in time-varying channels
Author :
Kwon, Jae Cheol ; Kim, Jae-kyoon ; You, Woongshk
Author_Institution :
Networking Res. Team, Technol. Lab., South Korea
Abstract :
A new adaptive video rate control scheme that makes the perceived picture quality of the reconstructed video as uniform as possible for time-varying bandwidth channels is presented. The proposed scheme dynamically skips the frames or adjusts the quantization parameters in a frame-basis according to the frame coding mode (FCM). It exploits the human visual perception that human eyes are less sensitive to quantization noise in a rapid-motion video and to frame-skipping in a slow-motion video. Simulation results demonstrate that the proposed adaptive rate control scheme can provide a better-perceived picture quality than the existing method (TMN-8).
Keywords :
adaptive codes; time-varying channels; video coding; adaptive video coding rate control; frame coding mode; frame-skipping; human eyes; human visual perception; perceived picture quality; quantization noise; rapid-motion video; slow-motion video; subjective quality; time-varying channels; Adaptive control; Bandwidth; Control systems; Eyes; Humans; Programmable control; Quantization; Telecommunication control; Time-varying channels; Video coding;
Conference_Titel :
Communications, 2003. APCC 2003. The 9th Asia-Pacific Conference on
Print_ISBN :
0-7803-8114-9
DOI :
10.1109/APCC.2003.1274412