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Proceedings Paper

Terrain Measurement From Holographic Stereograms
Author(s): J. T. McCrickerd
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Paper 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.

Paper Details

Date Published: 1 October 1974
PDF: 8 pages
Proc. SPIE 0045, Coherent Optics in Mapping, (1 October 1974); doi: 10.1117/12.953963
Show Author Affiliations
J. T. McCrickerd, Northrop Corp. (United States)

Published in SPIE Proceedings Vol. 0045:
Coherent Optics in Mapping
N. Balasubramanian; Robert D. Leighty, Editor(s)

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