Title :
Delay-Aware Loss-Concealment Strategies for Real-Time Video Conferencing
Author :
Xu, Jingxi ; Wah, Benjamin W.
Author_Institution :
Dept. of Comput. Sci. & Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
One-way audiovisual quality and mouth-to-ear delay (MED) are two important quality metrics in the design of real-time video-conferencing systems, and their trade-offs have significant impact on the user-perceived quality. In this paper, we address one aspect of this larger problem by developing efficient loss-concealment schemes that optimize the one-way quality under given MED and network conditions. Our experimental results show that our approach can attain significant improvements over the LARDo reference scheme that does not consider MED in its optimization.
Keywords :
real-time systems; teleconferencing; video communication; delay-aware loss-concealment strategies; loss-concealment scheme; mouth-to-ear delay; one-way audiovisual quality; one-way quality; quality metrics; real-time video-conferencing system; user-perceived quality; Delay; Encoding; Forward error correction; Optimization; Propagation losses; Real time systems; Streaming media; Internet; bandwidth constraint; delay-aware transmissions; loss concealment; real time; video conferencing;
Conference_Titel :
Multimedia (ISM), 2011 IEEE International Symposium on
Conference_Location :
Dana Point CA
Print_ISBN :
978-1-4577-2015-4
DOI :
10.1109/ISM.2011.14