Non-separable two-dimensional perfect reconstruction filter banks

Gunnar Karlsson, Martin Vetterli, Jelena Kovacevic

Research output: Contribution to journalArticlepeer-review


Non-separable filter banks are studied for general two-dimensional sub-band coding. The developed results are valid for any sub-sampling pattern. A synthesis structure is given which enables cascade-structure design of all two-dimensional paraunitary perfect reconstruction filter banks. The resulting structure is evaluated with regard to free variables and computational complexity. The synthesis structure is also extended to embrace non-paraunitary perfect reconstruction systems. Finally, conditions are derived to test filter banks for linear phase in the polyphase domain.

Original languageEnglish (US)
Pages (from-to)187-199
Number of pages13
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Oct 25 1988

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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