Three-dimensional DCT-based video compression using activity maps

Dmitry Furman; Moshe Porat

doi:10.1117/12.468012

22 May 2002 Three-dimensional DCT-based video compression using activity maps

Dmitry Furman, Moshe Porat

Proceedings Volume 4667, Image Processing: Algorithms and Systems; (2002) https://doi.org/10.1117/12.468012
Event: Electronic Imaging, 2002, San Jose, California, United States

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.

Citation Download Citation

Dmitry Furman and Moshe Porat "Three-dimensional DCT-based video compression using activity maps", Proc. SPIE 4667, Image Processing: Algorithms and Systems, (22 May 2002); https://doi.org/10.1117/12.468012

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