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Rate-distortion unequal error protection for fractal image codes

Stankovic, V. and Hamzaoui, R. and Saupe, D. (2001) Rate-distortion unequal error protection for fractal image codes. In: International Conference on Image Processing (ICIP 2001), 2001-10-07 - 2001-10-10, Thessaloniki.

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Abstract

Fractal image codes are very sensitive to bit errors because the decoding of a block is dependent not only on the code information associated to this block but also on the code information associated to other blocks. We analyze the sensitivity of a fractal code to transmission errors in a binary symmetric channel. We provide two rate-distortion unequal error protection techniques that allocate the code bits to protection classes in a nearly optimal way. We give an implementation for BCH and RCPC channel codes and show that RCPC codes are preferable. For a binary symmetric channel bit error probability of 0.1 and a total code rate of 0.5 bpp, the loss in reconstruction quality with our best implementation was about 3.38 dB for the 512 x 512 Lenna image, yielding a PSNR of 27.12 dB.

Item type: Conference or Workshop Item (Paper)
ID code: 38552
Keywords: rate-distortion, unequal error protection, fractal image codes, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 19 Mar 2012 15:15
    Last modified: 17 Jul 2013 15:29
    URI: http://strathprints.strath.ac.uk/id/eprint/38552

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