Title :
Effects of cell loss on MPEG video: analytical modeling and empirical validation
Author :
Snyder, Christopher W. ; Sarkar, Uttam K. ; Sarkar, Dilip
Author_Institution :
Dept. of Comput. Sci., Miami Univ., Coral Gables, FL, USA
Abstract :
MPEG-encoded variable bit rate (VBR) video traffic is expected to incur cell losses during its transmission over a broadband network. These cell losses introduce distortion into the received video. Frame drop rate and root mean square error (RMSE) can be used to objectively measure this distortion. These two metrics are useful in identifying the threshold cell loss rate (CLR) beyond which the quality of received video is unacceptable to viewers. Thus, they are useful in identifying CLRs to be used in evaluating VBR video traffic models. A novel analytical model is developed for predicting both frame drop rate and RMSE as a function of (i) uniform cell loss rate and (ii) MPEG encoding parameters. The model is validated by an empirical study using an actual MPEG video.
Keywords :
broadband networks; code standards; data compression; error analysis; telecommunication standards; telecommunication traffic; variable rate codes; video coding; MPEG encoding parameters; MPEG-encoded rate video traffic; VBR video traffic models; broadband network; cell loss; frame drop rate; objective distortion measure; root mean square error; threshold cell loss rate; uniform cell loss rate; variable bit rate video traffic; video quality; Analytical models; Bit rate; Broadband communication; Distortion measurement; PSNR; Predictive models; Propagation losses; Root mean square; Telecommunication traffic; Traffic control;
Conference_Titel :
Multimedia and Expo, 2002. ICME '02. Proceedings. 2002 IEEE International Conference on
Print_ISBN :
0-7803-7304-9
DOI :
10.1109/ICME.2002.1035640
