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Proceedings Paper

Compression of stereoscopic video using MPEG-2
Author(s): A. Puri; Richard V. Kollarits; Barry G. Haskell
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Paper Abstract

Many current as well as emerging applications in areas of entertainment, remote operations, manufacturing industry and medicine can benefit from the depth perception offered by stereoscopic video systems which employ two views of a scene imaged under the constraints imposed by human visual system. Among the many challenges to be overcome for practical realization and widespread use of 3D/stereoscopic systems are good 3D displays and efficient techniques for digital compression of enormous amounts of data while maintaining compatibility with normal video decoding and display systems.

After a brief introduction to the basics of 3D/stereo including issues of depth perception, stereoscopic 3D displays and terminology in stereoscopic imaging and display, we present an overview of tools in the MPEG-2 video standard that are relevant to our discussion on compression of stereoscopic video, which is the main topic of this paper. Next, we outilne the various approaches for compression of stereoscopic video and then focus on compatible stereoscopic video coding using MPEG-2 Temporal scalability concepts. Compatible coding employing two different types of prediction structures become potentially possible, disparity compensated prediction and combined disparity and motion compensated predictions. To further improve coding performance and display quality, preprocessing for reducing mismatch between the two views forming stereoscopic video is considered.

Results of simulations performed on stereoscopic video of normal TV resolution are then reported comparing the performance of two prediction structures with the simulcast solution. It is found that combined disparity and motion compensated prediction offers the best performance. Results indicate that compression of both views of stereoscopic video of normal TV resolution appears feasible in a total of 6 to 8 Mbit/s. We then discuss regarding multi-viewpoint video, a generalization of stereoscopic video. Finally, we describe ongoing efforts within MPEG-2 to define a profile for stereoscopic video coding, as well as, the promise of MPEG-4 in addressing coding of multi-viewpoint video.

Paper Details

Date Published: 25 October 1995
PDF: 26 pages
Proc. SPIE 10282, Standards and Common Interfaces for Video Information Systems: A Critical Review, 102820H (25 October 1995); doi: 10.1117/12.227956
Show Author Affiliations
A. Puri, AT&T Bell Labs. (United States)
Richard V. Kollarits, AT&T Bell Labs. (United States)
Barry G. Haskell, AT&T Bell Labs. (United States)

Published in SPIE Proceedings Vol. 10282:
Standards and Common Interfaces for Video Information Systems: A Critical Review
K. R. Rao, Editor(s)

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