Thornton, L. and Soraghan, J.J. and Chakraborthy, M. (2002) Perceptually weighted wavelet-based codec for handheld videophone applications. Electronics Letters, 38 (15). pp. 839-841. ISSN 0013-5194Full text not available in this repository. (Request a copy from the Strathclyde author)
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.
|Keywords:||vector quantisation, video codecs, video coding videotelephony, visual perception, wavelet transforms, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||03 Nov 2008|
|Last modified:||06 Jan 2017 04:55|