Woo Jong Yoo, Kwan Jong Yoo, Heung Ki Lee, Sung In Lee, Jung In Lee

The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 7, No. 12, pp. 3896-3909, Dec. 2000
10.3745/KIPSTE.2000.7.12.3896,   PDF Download:

Abstract

The MPEG Video Service of having a property of continuity and large capacity needs large network capacity. Because most of users have a heterogeneous network environment, it''s not efficient way that all users have same size of video data to provide them with real time video service. Therefore, for the purpose of an efficient and appropriate utilization of network resources, it requires to develop and deploy a new scalable transmission technique in consideration of respective network environment and individual clients computing power. The purpose of this paper is to develop a technology that can adjust the amount of data transmitted as an MPEG video stream according to its given communication bandwidth, and a technique that can reflect dynamic bandwidth while playing a video stream. For this purpose, we propose a TFS (Temporal-Fidelity Scaling) technique that splits the MPEG video stream into various substream according to picture type or resolution. Those methods proposed her can facilitate an effective use of network resources, and provide multimedia MPEG video services in real-time with respect to individual client computing environment.

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