Perceptually weighted wavelet-based codec for handheld videophone applications

L. Thornton, J.J. Soraghan, M. Chakraborthy

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A wavelet-based video codec that utilises the properties of the human visual system is presented. Perceptual weights are employed in the selection and vector quantisation of the wavelet coefficients. The weights are designed for a specific viewing distance and frame size with application to communication using a handheld videophone device. The results indicate a significant improvement in frame quality.
Original languageEnglish
Pages (from-to)839-841
Number of pages3
JournalElectronics Letters
Volume38
Issue number15
DOIs
Publication statusPublished - Nov 2002

Keywords

  • vector quantisation
  • video codecs
  • video coding videotelephony
  • visual perception
  • wavelet transforms

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