Adaptive joint subband vector quantisation codec for handheld videophone applications |
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| Authors: | Sheikh Akbari A Soraghan JJ |
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| Affiliation: | Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK; |
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| 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. |
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