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Summary: Design of Optimal Quincunx Filter Banks for Image Coding
Yi Chen, Michael D. Adams, and Wu-Sheng Lu
Dept. of Elec. and Comp. Engineering
University of Victoria, Victoria, BC, Canada
Abstract-- A new technique is proposed for the design of high-
performance quincunx filter banks for the application of image coding.
This method yields linear-phase perfect-reconstruction systems with
high coding gain, good analysis/synthesis filter frequency responses,
and prescribed vanishing moment properties. Examples of filter banks
designed with this technique are presented and shown to be highly
effective for image coding.
I. INTRODUCTION
Filter banks have proven to be a highly effective tool for im-
age coding applications [1]. Although techniques for the design
of one-dimensional (1D) filter banks have become highly evolved,
the nonseparable two-dimensional (2D) design case is much more
difficult and far fewer effective methods have been proposed. In image
coding applications, one typically desires filter banks with all of the
following characteristics: perfect reconstruction (PR), linear phase,
high coding gain [2], good frequency selectivity, and satisfactory
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