Title :
A comparison of media synchronization quality among reactive control schemes
Author :
Ishibashi, Yutaka ; Tasaka, Shuji ; Ogawa, Hiroki
Author_Institution :
Dept. of Electr. & Comput. Eng., Nagoya Inst. of Technol., Japan
Abstract :
This paper assesses the quality of media synchronization of recovery control schemes from asynchrony, which are referred to as reactive control schemes here, in terms of objective and subjective measures. We deal with four reactive control techniques: skipping, discarding, shortening and extension of output duration, and virtual time-contraction and time-expansion. We have carried out subjective and objective assessment of the media synchronization quality of nine schemes, which consist of combinations of the four techniques. The paper makes a comparison of media synchronization quality among the schemes. It also clarifies the relations between the two kinds of quality measures
Keywords :
Internet; multimedia communication; synchronisation; telecommunication control; video signal processing; voice communication; Internet; discarding; distance learning; distributed multimedia applications; lip synchronization; media synchronization quality; multimedia conferencing; objective measures; output duration extension; output duration shortening; reactive control schemes; recovery control schemes; skipping; subjective measures; video stream; Computer aided instruction; Electric variables measurement; IP networks; Internet; Jitter; Lips; Streaming media; Timing;
Conference_Titel :
INFOCOM 2001. Twentieth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-7016-3
DOI :
10.1109/INFCOM.2001.916689
