Efficient lifting wavelet transform for microprocessor and VLSI applications

Hannu Olkkonen (Corresponding Author), Juuso T. Olkkonen, P. Pesola

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)

Abstract

Recently, wavelet analysis has gained an established role in signal and image processing applications. In this paper, we present a discrete wavelet transform algorithm based on the lifting scheme. The Haar wavelet transformed and decimated signals are lifted by the ladder-type network. A unique lifting filter is designed for in-place computation. The present algorithm is especially suitable for microprocessor and VLSI applications since it can be implemented by integer arithmetics using only register shifts and summations.
Original languageEnglish
Pages (from-to)120-122
JournalIEEE Signal Processing Letters
Volume12
Issue number2
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

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Keywords

  • Haar transforms
  • VLSI
  • discrete wavelet transforms
  • filtering theory
  • image processing
  • ladder networks
  • microprocessor chips
  • in-place computation
  • integer arithmetics
  • ladder-type network
  • lifting filter
  • microprocessor
  • signal-image processing

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