Signal compression with smooth local trigonometric bases

Bjorn D. Jawerth; Yi Liu; Wim Sweldens

doi:10.1117/12.172253

1 July 1994 Signal compression with smooth local trigonometric bases

Bjorn D. Jawerth, Yi Liu, Wim Sweldens

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Optical Engineering, Vol. 33, Issue 7, (July 1994). https://doi.org/10.1117/12.172253

Abstract

We discuss smooth local trigonometric bases and their applications to signal compression. In image compression, these bases can reduce the blocking effect that occurs in the Joint Photographic Experts Group (JPEG). We present and compare two generalizations of the original construction of Malvar, Coifman, and Meyer: biorthogonal and equal parity bases. These have the advantage that constant and linear components, respectively, can be represented efficiently. We show how they reduce blocking effects and improve the SNR.

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Bjorn D. Jawerth, Yi Liu, and Wim Sweldens "Signal compression with smooth local trigonometric bases," Optical Engineering 33(7), (1 July 1994). https://doi.org/10.1117/12.172253

Published: 1 July 1994

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