Digital Signal Processing Reference
In-Depth Information
Fig. 4.31
Rate-distortion performance comparison for “Lena” image. (
a
) Side coding. (
b
) Central
coding
If we compare the results based on the wavelet domain partition, the figures
also clearly demonstrate that the proposed scheme significantly outperforms the
appending method, where the improvement is more noticeable, especially for side
decoded results, than that based on the spatial partition. The skipping scheme
produces very poor side coding results due to the difficulty of interpolating the
missing part based on the wavelet domain partition, which is far from the proposed
and appending schemes and therefore not shown in the figures. As expected,
