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.
Full text not available in this repository. (Request a copy from the Strathclyde author)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: | 04 Oct 2012 17:22 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/38552 |
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