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An Unwrapping of Signals in Transform Domain and Its Application in Signal Reconstruction

Pavol ZAVARSKY, Nobuo FUJII, Noriyoshi KAMBAYASHI, Masahiro IWAHASHI, Somchart CHOKCHAITAM

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Summary :

An unwrapping of signal coefficients in transform domain is proposed for applications in which a lossy operation is performed on the coefficients between analysis and synthesis. It is shown that the unwrapping-based modification of signal-to-additive-signal ratio can employ the fact that an implementation of a biorthogonal decomposition is characterized by a mutually orthogonal eigenvectors. An example to illustrate the benefits of the presented approach in lossy image compression applications is shown.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E84-A No.7 pp.1765-1771
Publication Date
2001/07/01
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