An Objective Performance Measure in Multiresolution Signal Decomposition

Ali N. Akansu, Hakan Caglar, Yipeng Liu

Research output: Contribution to journalArticlepeer-review


This correspondence presents an analysis of band energies and evaluates the effects of aliasing in perfect reconstruction (PR) multirate systems. An objective performance measure called nonaliasing energy ratio (NER) is defined. The merit of the new measure is emphasized with the performance comparisons of popular block transforms and 2-band PR-QMF based hierarchical filter banks. It is shown that the new measure complements the widely used energy compaction measure.

Original languageEnglish (US)
Pages (from-to)3153-3157
Number of pages5
JournalIEEE Transactions on Signal Processing
Issue number11
StatePublished - Nov 1993

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering


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