International Journal of Telemedicine and Applications / 2009 / Article / Fig 13

Research Article

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.
519417.fig.013a
(a)
519417.fig.013b
(b)
519417.fig.013c
(c)
519417.fig.013d
(d)

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