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COPERM: transform-domain energy compaction by optimal permutation

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4 Author(s)
Sidiropoulos, N.D. ; Dept. of Electr. Eng., Virginia Univ., Charlottesville, VA, USA ; Pattichis, M.S. ; Bovik, A.C. ; Havlicek, J.W.

COPERM is a novel paradigm for energy compaction and signal compression, whose foundation is a simple but powerful idea: any signal can be transformed to resemble a more desirable signal from a class of “target” signals, by means of a suitable permutation of its samples. The approach is well-suited for transform domain energy compaction prior to transform-domain compression of persistent broadband signals. The associated optimal permutation precoders are surprisingly simple, and the permutation precoding overhead can be made modest-resulting in improved overall rate-distortion performance

Published in:

Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on  (Volume:6 )

Date of Conference:

12-15 May 1998