Improved high-definition video by encoding at an intermediate resolution

Andrew Segall; Michael Elad; Peyman Milanfar; Richard Webb; Chad Fogg

doi:10.1117/12.527616

18 January 2004 Improved high-definition video by encoding at an intermediate resolution

Andrew Segall, Michael Elad, Peyman Milanfar, Richard Webb, Chad Fogg

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.

Citation Download Citation

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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