Videotape recording of 3-D television pictures

Peter M. Scheiwiller; Andrew A. Dumbreck; A. D. Chapman

doi:10.1117/12.19907

1 September 1990 Videotape recording of 3-D television pictures

Peter M. Scheiwiller, Andrew A. Dumbreck, A. D. Chapman

Proceedings Volume 1256, Stereoscopic Displays and Applications; (1990) https://doi.org/10.1117/12.19907
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

Recording disparate left and right eye views on separate, synchronised tape recorders has obvious advantages, but the cost, unwieldy post-production, and storage requinments may exclude small scale and industrial users. There is a need for a simple system of recording 3D TV images on a single tape. It may be possible to accommodate stereo pictures in little more than the bandwidth of conventional video, for example by coding as left channel plus left.right difference signal. Simpler techniques involve discarding infonnation, but in practise this can be of little visible consequence. Two methods of combining left and right views into a video signal which can be recorded on any format video recorder are described. The first involves multiplexing fields from the left and right channels. On playback the fields are separated and each displayed twice to avoid ificker. Vertical resolution is reduced, but this is subjectively acceptable. With the second technique portions of the left and right views are combined in a side-by-side half frame fonnat. Horizontal, vertical and temporal resolution are unaffected, but picture size is reduced and aspect-ratio changed. This format is useful when recorded data is input to an image processing system.

Citation Download Citation

Peter M. Scheiwiller, Andrew A. Dumbreck, and A. D. Chapman "Videotape recording of 3-D television pictures", Proc. SPIE 1256, Stereoscopic Displays and Applications, (1 September 1990); https://doi.org/10.1117/12.19907

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