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18 January 2004 Improved high-definition video by encoding at an intermediate resolution
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Proceedings Volume 5308, Visual Communications and Image Processing 2004; (2004) https://doi.org/10.1117/12.527616
Event: Electronic Imaging 2004, 2004, San Jose, California, United States
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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrew Segall, Michael Elad, Peyman Milanfar, Richard Webb, and Chad Fogg "Improved high-definition video by encoding at an intermediate resolution", Proc. SPIE 5308, Visual Communications and Image Processing 2004, (18 January 2004); https://doi.org/10.1117/12.527616
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