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Optical Engineering

Signal compression with smooth local trigonometric bases
Author(s): Bjorn D. Jawerth; Yi Liu; Wim Sweldens
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Paper 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.

Paper Details

Date Published: 1 July 1994
PDF: 11 pages
Opt. Eng. 33(7) doi: 10.1117/12.172253
Published in: Optical Engineering Volume 33, Issue 7
Show Author Affiliations
Bjorn D. Jawerth, Univ. of South Carolina (United States)
Yi Liu, Univ. of South Carolina (United States)
Wim Sweldens, Univ. of South Carolina (United States)


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