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Proceedings Paper

Developmental research on simultaneous discrimination of shapes by a photoconductor plastic hologram automatically processed by solvent vapor
Author(s): Isao Shimizu; Fumitake Kato; Takashi Isago; Katsumasa Ichige; Yoshie Otake; Shinji Arakawa
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Paper Abstract

A new technique has been developed to simultaneously and instantaneously discriminate the shapes of objects by using a Multiplexed Matched Spatial Filter (MMSF). In order to make a hologram automatically, rapidly and efficiently and to process the hologram on the initially setting place, the techniques processing a photoconductor-plastic plate by solvent vapor and cutting off tremor using optical system composed on a rail base have been developed by authors. The diffraction patterns generated from objects at the frontal focal plane of the convex lens in the parallel coherent laser beam are superimposed at the back focal plane of the lens and the information of these shapes are filtered by a hologram (MMSF). In a consequence of mention above, the grope of auto-correlation peaks discriminating the shapes of objects appear in each measuring field skew-symmetrically to the location of input objects. The spatial distributions of objects in each shape or size could be measured simultaneously and instantaneously using the technique.

Paper Details

Date Published: 23 August 1996
PDF: 6 pages
Proc. SPIE 2774, Design and Engineering of Optical Systems, (23 August 1996); doi: 10.1117/12.246659
Show Author Affiliations
Isao Shimizu, Ibaraki College of Technology (Japan)
Fumitake Kato, Ibaraki College of Technology (Japan)
Takashi Isago, Ibaraki College of Technology (Japan)
Katsumasa Ichige, Ibaraki College of Technology (Japan)
Yoshie Otake, Ibaraki College of Technology (Japan)
Shinji Arakawa, Ibaraki College of Technology (Japan)

Published in SPIE Proceedings Vol. 2774:
Design and Engineering of Optical Systems
Joseph J. M. Braat, Editor(s)

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