An Adaptive Source-Channel Coding with Feedback for Progressive Transmission of Medical Images
Figure 13
A decoded image with variable length of parity codes
over noisy channel: (a) several error subblocks are detected in stage 1, (b)
several error subblocks still are found in stage 2 indicating that the feedback
message is incorrect or the channel condition becomes noisier. However, RoI
is still error-free based on the UEP. (c) No error subblock is detected in stage 3 because the length of
parity is adjusted again according to previous channel state, although there
can still be some error. (d) The complete transmitted image with no
error subblocks.
