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Design of High-Performance Filter Banks for Image Coding Di Xu and Michael D. Adams
 

Summary: Design of High-Performance Filter Banks for Image Coding
Di Xu and Michael D. Adams
Dept. of Elec. and Comp. Engineering, University of Victoria
PO Box 3055, STN CSC, Victoria, BC, V8W 3P6, Canada
dixu@ece.uvic.ca and mdadams@ece.uvic.ca
Abstract-- An optimization-based method for the design of high-
performance separable filter banks for image coding is proposed.
This method yields linear-phase perfect-reconstruction systems with
high coding gain, good frequency selectivity, and certain prescribed
vanishing-moment properties. Several filter banks designed with the
proposed method are presented and shown to work extremely well
for image coding, outperforming the well-known 9/7 filter bank from
the JPEG-2000 standard in most cases.
Keywords-- optimal filter-bank design, wavelet transforms, lifting
framework, image coding.
I. INTRODUCTION
Filter banks have proven to be an extremely valuable
tool for image coding applications [1], [2], [3]. In order
to be effective in such applications, however, a filter bank
must typically have a number of desirable characteristics,

  

Source: Adams, Michael D. - Department of Electrical and Computer Engineering, University of Victoria

 

Collections: Engineering