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Proceedings Paper

Hologrammetric Plotter (Apparatus For Three-Dimensional Measurement On An Image Reconstructed By Holographic Process)
Author(s): Gerard Bocquemo; Dominique Laroche; Bernard Turlier
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Paper Abstract

Our holographic technique permits us to produce the equivalent of a photogrammetric stereomodel. The exploitation is made in two ways: -the direct method, in which we visually put a luminous point in contact with the three-dimensional holographic virtual image of the object; -the video method, in which we work with a camera on the real holographic image of the object. These methods permit the measurement of distance by successive sightings on the object with a precision better than 0.1 mm. The apparatus which we are developing presently works by successive sightings. It may evolve towards an automatic sequence of sightings, advantageously using repetitive details already existing on the object or curves drawn optically.

Paper Details

Date Published: 18 April 1978
PDF: 6 pages
Proc. SPIE 0136, 1st European Conf on Optics Applied to Metrology, (18 April 1978); doi: 10.1117/12.956142
Show Author Affiliations
Gerard Bocquemo, MATRA Inc. (France)
Dominique Laroche, MATRA Inc. (France)
Bernard Turlier, MATRA Inc. (France)

Published in SPIE Proceedings Vol. 0136:
1st European Conf on Optics Applied to Metrology
Michel H. Grosmann; Patrick Meyrueis, Editor(s)

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