Lifting-based paraunitary filterbanks for lossy/lossless image coding

Taizo Suzuki, Yuichi Tanaka, Masaaki Ikehara

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


This paper introduces one of the image transform methods using M-channel paraunitary filterbanks (PUFBs) based on Householder matirx. First, redundant parameters of PUFB are eliminated by using the fact that they can be factorized into Givens rotation matices. Next, we propose an eliminating redundant parameters method based on Householder matrix using relationship between Givens rotation and Householder matrices. In addition, PUFBs are factorized into the lifting structure for lossless image coding, and we call them as lifting-based PUFBs (LBPUFBs). LBPUFBs based on Householder matrix have less number of rounding operators than Givens rotation matrix version, since proposed structure is efficiency for lossless image coding. Finally, we show some exsamples to validate our method in lossy/lossless image coding.

Original languageEnglish
JournalEuropean Signal Processing Conference
Publication statusPublished - 2006
Event14th European Signal Processing Conference, EUSIPCO 2006 - Florence, Italy
Duration: 2006 Sept 42006 Sept 8


  • Householder matrix
  • Lifting structure
  • Lossless image coding
  • Paraunitary filterbank
  • Redundant parameters

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering


Dive into the research topics of 'Lifting-based paraunitary filterbanks for lossy/lossless image coding'. Together they form a unique fingerprint.

Cite this