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Proceedings Paper

Improved high-definition video by encoding at an intermediate resolution
Author(s): Andrew Segall; Michael Elad; Peyman Milanfar; Richard Webb; Chad Fogg
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Paper Abstract

In this paper, we consider the compression of high-definition video sequences for bandwidth sensitive applications. We show that down-sampling the image sequence prior to encoding and then up-sampling the decoded frames increases compression efficiency. This is particularly true at lower bit-rates, as direct encoding of the high-definition sequence requires a large number of blocks to be signaled. We survey previous work that combines a resolution change and compression mechanism. We then illustrate the success of our proposed approach through simulations. Both MPEG-2 and H.264 scenarios are considered. Given the benefits of the approach, we also interpret the results within the context of traditional spatial scalability.

Paper Details

Date Published: 18 January 2004
PDF: 12 pages
Proc. SPIE 5308, Visual Communications and Image Processing 2004, (18 January 2004); doi: 10.1117/12.527616
Show Author Affiliations
Andrew Segall, Pixonics, Inc. (United States)
Michael Elad, Technion-Israel Institute of Technology (Israel)
Consultant (United States)
Peyman Milanfar, Univ. of California/Santa Cruz (United States)
Consultant (United States)
Richard Webb, Pixonics, Inc. (United States)
Chad Fogg, Pixonics, Inc. (United States)

Published in SPIE Proceedings Vol. 5308:
Visual Communications and Image Processing 2004
Sethuraman Panchanathan; Bhaskaran Vasudev, Editor(s)

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