A novel VLSI architecture for multidimensional discrete wavelet transform

  • Authors:
  • Qionghai Dai;Xinjian Chen;Chuang Lin

  • Affiliations:
  • Dept. of Autom., Tsinghua Univ., Beijing, China;-;-

  • Venue:
  • IEEE Transactions on Circuits and Systems for Video Technology
  • Year:
  • 2004

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Abstract

A novel VLSI architecture for multidimensional discrete wavelet transform (mD DWT) based on a systolic array is proposed. We divide the input mD image data into 2m independent data streams, and then simultaneously pipeline them into a multi-filter chip, and finally obtain 2m samples which are from different DWT subbands per clock cycles (ccs). The proposed architecture performs a decomposition of an N1×N2×...×Nm image in about N1N2...Nm/(2m-1) ccs and requires relatively lower hardware cost than previous architectures. Besides, the advantages of the proposed architecture include very simple hardware complexity, regular data flow and low control complexity.