||Stankovic, V., Hamzaoui, R., Saupe, D.
||Rate-distortion unequal error protection for fractal image codes
||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 3.9 dB for the 512 x 512 Lenna image, yielding a
PSNR of 26.6 dB.