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

Sheikh Akbari, A. and Soraghan, J.J. (2004) Wavelet-based video codec using human visual system coefficients for 3G mobiles. In: 12th European Signal Processing Conference, 2004-09-06 - 2004-09-10.

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Abstract

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

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• Item metadata

  Item type:	Conference or Workshop Item(Paper)
  ID code:	36358
  Dates:	Date Event 2004 Published
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering
  Depositing user:	Pure Administrator
  Date deposited:	07 Dec 2011 14:59
  Last modified:	09 Apr 2024 05:38
  Related URLs:	Event
  URI:	https://strathprints.strath.ac.uk/id/eprint/36358