Impact of ATM traffic control on MPEG-2 video quality

被引：0

作者：

Gu, JY ^{[1
]}

Jurczyk, M ^{[1
]}

Chen, CW ^{[1
]}

机构：

[1] Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA

来源：

ISCAS '99: PROCEEDINGS OF THE 1999 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL 4: IMAGE AND VIDEO PROCESSING, MULTIMEDIA, AND COMMUNICATIONS | 1999年

关键词：

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, a performance study of controlled MPEG-2 video traffic over an ATM network is presented. ATM networks are able to support variable bit rate (VBR) video sources. However, to implement QoS contract enforcement, traffic policers such as a Leaky Bucket need to be incorporated in order to change the VER characteristics of a video stream. Our study investigates the video quality achievable by different traffic policing mechanisms. We use cell loss, frame corruption, and mean square error (MSE) to evaluate the influence of different traffic policers on the quality of the transmitted video stream. The performance evaluation is accomplished by simulating an ATM network using real MPEG-2 video streams. In our study, we also consider the layered video coding offered by the MPEG-2 standard. With traffic control, layered video achieves significant quality improvement for video transmission over ATM as compared to the one-layer case.

引用

页码：483 / 486

页数：4

共 50 条

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