Effects of compression parameters on the perceived quality of video stream over a lossy Internet protocol network

Ofer Hadar; Ron Shmueli; Revital HuberMerav Huber

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Effects of compression parameters on the perceived quality of video stream over a lossy Internet protocol network

机译：Effects of compression parameters on the perceived quality of video stream over a lossy Internet protocol network

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摘要

We analyze the connection between viewer-perceived quality and encoding schemes. The encoding schemes depend on transmission bit-rate, MPEG compression depth, frame size and frame rate in a constant bit-rate (CBR) video transmission of a MPEG-2 video sequence. The compressed video sequence is transmitted over a lossy communication network with quality of service (QoS) and a certain Internet (IP) loss model. On the end-user side, viewer-perceived quality depends on changes in the network conditions, the video compression, and the video content complexity. We demonstrate that, when jointly considering the impact of coding bit rate, packet loss, and video complexity, there is an optimal encoding scheme, which also depends on the video content. We use a set of subjective tests to demonstrate that this optimal encoding scheme maximizes the viewer-perceived quality.

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来源
《Optical Engineering》 |2006年第8期|087003-1-087003-14-0|共14页
作者
Ofer Hadar; Ron Shmueli; Revital HuberMerav Huber;
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作者单位

Ben-Gurion University of the Negev Communication System Engineering Department Beer-Sheva 84105, Israel;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学仪器;
关键词
Motion Picture Experts Group; subjective tests; quality of service; compression; encoding scheme; Internet protocol; perceived quality; packet loss ratio;

Effects of compression parameters on the perceived quality of video stream over a lossy Internet protocol network

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