Graphics Reference
In-Depth Information
Scalable video encoding approaches for 3D video as described in Chapter 3 can be ef-
fectively used in reducing the storage and bandwidth required for 3-D video applications
without any degradation to perceived quality. This can be further extended to support
bandwidthvariationsinthenetworkadaptively.Closed-looprateadaptationalgorithmscan
be designed to optimize the 3-D video quality under changing network conditions. Fur-
thermore, the asymmetric coding methods can be extended to designJointSourceChannel
Coding (JSCC) methods. For instance, when channel conditions are bad, the depth image
can be encoded with reduced resolution to allow for more channel protection to be applied
to the 3-D stream. The full resolution depth images can be sent with reduced protection at
goodchannelconditions.Incaseofabackwardcompatible3-Dvideoservice,thetransmit-
tercanonlysendthecolour video stream with full protection at bad channel conditions by
neglecting the associated depth stream.
Even though coding of colour plus depthbasedstereoscopic video is considered in this topic,
the proposed techniques can also be applied to emerging multi-view plus depth map re-
presentation.Unlikestereoscopic video, the demand for system resources (e.g. storage and
bandwidth) is enormous for multi-view video applications.Therefore,theproposedencod-
ingapproachescanbeextendedtodesignbandwidthfriendlymulti-viewvideoapplications.
