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366 16 DCast: Distributed Video Multicast
(a) Original
(b) SoftCast2D (c) SoftCast3D (d) DCast
Figure 16.12 Visual quality comparison with channel SNR as 5 dB.
GHz, 2G internal memory and Microsoft Windows XP Professional 5.1.2600, with
Service Pack 3. The input video is “all seq” with CIF size at 30 frames per second.
DCast has less encoding time than H.264 codec (JM14.2) probably because DCast
has no mode decision and no entropy coding. As to the decoding time, DCast is
comparable to the H.264 codec.
Table 16.2 also shows the video bit rate and channel bit rate of H.264 solutions.
For example, when the modulation is BPSK, the channel bit rate ...