Wavelet-based video codec using human visual system coefficients for 3G mobiles

A. Sheikh Akbari, J.J. Soraghan

Research output: Contribution to conferencePaperpeer-review

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A new wavelet based video codec that uses human visual system coefficients is presented. In INTRA mode
of operation, wavelet transform is used to split the input frame into a number of subbands. Human Visual
system coefficients are designed for handheld videophone devices and used to regulate the quantization
stepsize in the pixel quantization of the high frequency subbands’ coefficients. The quantized coefficients
are coded using quadtreecoding scheme. In the INTER mode of operation, the displaced frame difference
is generated and a wavelet transform decorrelates it into a number of subbands. These subbands are
coded using adaptive vector quantization scheme. Results indicate a significant improvement in frame quality
compared to motion JPEG2000
Original languageEnglish
Number of pages3
Publication statusPublished - 2004
Event12th European Signal Processing Conference - Vienna, Austria
Duration: 6 Sep 200410 Sep 2004


Conference12th European Signal Processing Conference
Abbreviated titleEUSIPCO 2004


  • wavelet based video codec


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