Stereo/multiview video encoding using the MPEG family of standards

Jens-Rainer Ohm

doi:10.1117/12.349385

24 May 1999 Stereo/multiview video encoding using the MPEG family of standards

Jens-Rainer Ohm

Proceedings Volume 3639, Stereoscopic Displays and Virtual Reality Systems VI; (1999) https://doi.org/10.1117/12.349385
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

Abstract

Compression of stereoscopic and multiview video data is important, because the bandwidth necessary for storage and transmission linearly increase with the number of camera channels. This paper gives an overview about techniques that ISO's Moving Pictures Experts Group has defined in the MPEG- 2 and MPEG-4 standards, or that can be applied in the context of these standards. A good tradeoff between exploitation of spatial and temporal redundancies can be obtained by application of hybrid coding techniques, which combine motion-compensated prediction along the temporal axis, and 2D DCT transform coding within each image frame. The MPEG-2 multiview profile extends hybrid coding towards exploitation of inter-viewchannel redundancies by implicitly defining disparity-compensated prediction. The main feature of the new MPEG-4 multimedia standard with respect to video compression is the possibility to encode objects with arbitrary shape separately. As one component of the segmented object's shape, it shall be possible to encode a dense disparity map, which can be accurate enough to allow generation of alternative view s by projection. This way, a very high stereo/multiview compressions ratio can be achieved. While the main application area of the MPEG-2 multiview profile shall be in stereoscopic TV, it is expected that multiview aspects of MPEG-4 will play a major role in interactive applications, e.g. navigation through virtual 3D worlds with embedded natural video objects.

Citation Download Citation

Jens-Rainer Ohm "Stereo/multiview video encoding using the MPEG family of standards", Proc. SPIE 3639, Stereoscopic Displays and Virtual Reality Systems VI, (24 May 1999); https://doi.org/10.1117/12.349385

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