COPERM: transform-domain energy compaction by optimal permutation

Nicholas D. Sidiropoulos, Marios S. Pattichis, Alan C. Bovik, John W. Havlicek

Research output: Contribution to journalArticle

4 Scopus citations


Compaction by optimal permutation (COPERM) is a tool transform-domain energy compaction of broadband signals, whose foundation is a simple but powerful idea: Any signal can be transformed to resemble a more desirable (e.g., from a transform-domain compaction viewpoint) signal from a class of 'target' signals (e.g. DCT basis functions) by means of a suitable permutation of its samples. One application of transform-domain energy compaction is in lossy compression. We pursue one possible thread in detail and demonstrate some interesting broadband image compression results.

Original languageEnglish (US)
Pages (from-to)1679-1688
Number of pages10
JournalIEEE Transactions on Signal Processing
Issue number6
StatePublished - Jan 1 1999

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    Sidiropoulos, N. D., Pattichis, M. S., Bovik, A. C., & Havlicek, J. W. (1999). COPERM: transform-domain energy compaction by optimal permutation. IEEE Transactions on Signal Processing, 47(6), 1679-1688.