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Journal of Electronic Imaging

MPEG-compliant joint source/channel coding using discrete cosine transform and substream scheduling for visual communication over packet networks
Author(s): Seong-Whan Kim; Shan Suthaharan; Heung-Kyu Lee; K. R. Rao
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Paper Abstract

Quality of Service (QoS)-guarantee in real-time communication for multimedia applications is significantly important. An architectural framework for multimedia networks based on substreams or flows is effectively exploited for combining source and channel coding for multimedia data. But the existing frame by frame approach which includes Moving Pictures Expert Group (MPEG) cannot be neglected because it is a standard. In this paper, first, we designed an MPEG transcoder which converts an MPEG coded stream into variable rate packet sequences to be used for our joint source/channel coding (JSCC) scheme. Second, we designed a classification scheme to partition the packet stream into multiple substreams which have their own QoS requirements. Finally, we designed a management (reservation and scheduling) scheme for substreams to support better perceptual video quality such as the bound of end-to-end jitter. We have shown that our JSCC scheme is better than two other two popular techniques by simulation and real video experiments on the TCP/IP environment.

Paper Details

Date Published: 1 January 2001
PDF: 10 pages
J. Electron. Imag. 10(1) doi: 10.1117/1.1311794
Published in: Journal of Electronic Imaging Volume 10, Issue 1
Show Author Affiliations
Seong-Whan Kim, LGIC Inc. (South Korea)
Shan Suthaharan, Tennessee State Univ. (United States)
Heung-Kyu Lee, Korea Advanced Institute of Science and Technology (South Korea)
K. R. Rao, Univ. of Texas/Arlington (United States)

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