Very efficient low-bit-rate subband image/video codec using shift-only PR-QMF and zero-zone linear quantizers

Cesar A. Gonzales, Ali N. Akansu

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


Subband coding has been successfully used for image and video applications. This paper emphasizes two design issues of a subband codec. Namely, the selection of the filterbank family and the width of zero-zones in zero-zone linear quantizers. It is shown that the shift only filters (Multiplier-less PR-QMF) performs as good as other popular filterbank families. Finally, the significance of the quantizers' zero-zones in codec's rate-distortion performance is presented. It is found that the proposed efficient subband image/video codec performs comparable with the leading techniques like embedded zero-tree wavelet (EZW) coding scheme reported in the literature. We also incorporated this efficient subband codec into a motion compensated video coding algorithm. It is observed that the superior performance of zero-zone linear quantizers is also valid for subband video coding. The subjective performance of the proposed efficient codec in image and video coding are found consistent with the objective performance results obtained.

Original languageEnglish (US)
Pages (from-to)2993-2996
Number of pages4
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 5) - Munich, Ger
Duration: Apr 21 1997Apr 24 1997

All Science Journal Classification (ASJC) codes

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering


Dive into the research topics of 'Very efficient low-bit-rate subband image/video codec using shift-only PR-QMF and zero-zone linear quantizers'. Together they form a unique fingerprint.

Cite this