Short-term Approach for Signal Representation and Compression

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In summary, stereoscopic 3D will be used in the short term. Broadcasters appear to be rallying around top/bottom spatial compression; however, trials are still ongoing. Other approaches involve some form of compression including checkerboard (quincunx filters), side-by-side or interleaved rows or columns [30]. Spatial compression can operate on the same channel capacity as an existing TV channel but with a compromise in resolution. Stereoscopic 3D is the de facto standard from 3D cinema; note that this approach is directly usable for glasses-based displays, but it does not allow for scaling of depth. It is also not usable for non-glasses-based displays [29]. (Preferably, a 3D representation format must be
generic for all display types—stereoscopic displays and multi-view displays—the long-term approaches we listed above will support that goal.)

For compression, one of the following four may find use in the short term: (i) ITU-T Rec. H.262/ISO/IEC 13818-2 MPEG-2 Video (MVP); or (ii) H.264/AVC with SEI; or (iii) H264/AVC can be used for each view independently; or (iv) the MVC extension of H.264/AVC (Amendment 4).

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