Adaptive joint subband vector quantisation codec for handheld videophone applications

A. Sheikh Akbari, J.J. Soraghan

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A new wavelet-based video codec is presented, which joins vectors in the same subbands of different frames in a frame group and uses the properties of the human visual system. Perceptual weights are designed and used in the vector selection and quantisation of the wavelet coefficients. Results indicate a significant improvement in frame quality compared to JPEG2000 image sequence coder.
Original languageEnglish
Pages (from-to)1044-1046
Number of pages2
JournalElectronics Letters
Volume39
Issue number14
DOIs
Publication statusPublished - Jul 2003

Keywords

  • adaptive signal processing
  • vector quantisation
  • video codecs
  • wavelet transforms

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