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Optical Engineering

Effects of compression parameters on the perceived quality of video stream over a lossy Internet protocol network
Author(s): Ofer Hadar; Ron Shmueli; Revital Huber; Merav Huber
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Paper Abstract

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.

Paper Details

Date Published: 1 August 2006
PDF: 14 pages
Opt. Eng. 45(8) 087003 doi: 10.1117/1.2338591
Published in: Optical Engineering Volume 45, Issue 8
Show Author Affiliations
Ofer Hadar, Ben-Gurion Univ. of the Negev (Israel)
Ron Shmueli, Ben-Gurion Univ. of the Negev (Israel)
Revital Huber, Ben-Gurion Univ. of the Negev (Israel)
Merav Huber, Ben-Gurion Univ. of the Negev (Israel)


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