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Proceedings Paper

Three-dimensional DCT-based video compression using activity maps
Author(s): Dmitry Furman; Moshe Porat
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Paper Abstract

We introduce a new approach to video compression based on the Discrete Cosine Transform (DCT) generalized to 3 dimensions. An efficient tool of 'Activity Map' further exploits the temporal redundancies of video sequences, providing a very-low bit-rate system. The result is a compression ratio of more than 150:1 with good quality of the reconstructed sequence, measured as more than 37 db (PSNR). Although the compression results are comparable with existing methods, such as MPEG or H.263, the complexity of the proposed approach is approximately 90% lower, making it suitable for hand-held systems such as cellular videophones.

Paper Details

Date Published: 22 May 2002
PDF: 7 pages
Proc. SPIE 4667, Image Processing: Algorithms and Systems, (22 May 2002); doi: 10.1117/12.468012
Show Author Affiliations
Dmitry Furman, Technion--Israel Institute of Technology (Israel)
Moshe Porat, Technion--Israel Institute of Technology (New Zealand)

Published in SPIE Proceedings Vol. 4667:
Image Processing: Algorithms and Systems
Edward R. Dougherty; Jaakko T. Astola; Karen O. Egiazarian, Editor(s)

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