1 October 1974 Terrain Measurement From Holographic Stereograms
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Proceedings Volume 0045, Coherent Optics in Mapping; (1974); doi: 10.1117/12.953963
Event: Coherent Optics in Modeling, 1974, Rochester, United States
Abstract
The objective of this study was to determine the feasibility of measuring terrain from aerial stereo-photos displayed in the form of holographic stereograms. Holographic stereograms are attractive for this application because they have the potential of providing a simple but vivid display with rapid access. An optical analog device was used as the basis for measurement. By using a set of Balplex (Ref. 1) plotting instruments in turn as projectors and cameras, we obtained projections of the optical terrain model and of a fabricated grid model, onto a datumplane. The left and right projections were recorded photographically and holographically, and were interpreted for measurement by an exact algorithm which is most conveniently implemented by computer.
© (1974) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. T. McCrickerd, "Terrain Measurement From Holographic Stereograms", Proc. SPIE 0045, Coherent Optics in Mapping, (1 October 1974); doi: 10.1117/12.953963; https://doi.org/10.1117/12.953963
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