Title :
A predictive H.263 bit-rate control scheme based on scene information
Author :
Hsu, Pohsiang ; Liu, K. J Ray
Author_Institution :
Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA
Abstract :
For many real-time visual communication applications such as video telephony, the transmission channel used is typically constant bit rate (e.g. PSTN). Under this circumstance, the encoder´s output bit-rate must be regulated to meet the transmission bandwidth in order to guarantee a constant frame rate and delay. We propose a new predictive rate control scheme based on the activity of the scene to be coded for H.263 encoder
Keywords :
code standards; data compression; delays; real-time systems; telecommunication standards; video coding; visual communication; H.263 encoder; constant bit rate; constant frame rate; delay; predictive bit-rate control; real-time visual communication; scene information; transmission bandwidth; transmission channel; video telephony; Bit rate; Buffer storage; Communication system control; Delay; Educational institutions; Layout; Telephony; Video compression; Videoconference; Visual communication;
Conference_Titel :
Multimedia and Expo, 2000. ICME 2000. 2000 IEEE International Conference on
Conference_Location :
New York, NY
Print_ISBN :
0-7803-6536-4
DOI :
10.1109/ICME.2000.871107
