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Proceedings Paper

Three-Dimensional Stereometric Measurement System Using Optical Scanners, Cylindrical Lenses, And Line Sensors
Author(s): Yasuo Yamashita; Nobumasa Suzuki; Masamitsu Oshima; Yoshiomi Yamaguchi
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Paper Abstract

A simple and low-cost 3-dimensional stereometric measurement system has been developed which measures the shape of object by means of trigonometry. This system is composed of an X-Y optical scanner, cylindrical lenses and line sensors. A laser beam is incident on an object and is scanned over the area of interest by the optical scanner. Cartesian coordinates of a laser spot hit by the laser beam in a three dimensional space are determined simply and at high speed through the combined use of cylindrical lenses and line sensors. The cylindrical lens makes a line focus and, therefore, the coordinates of a light spot is projected onto a line orthogonal to the axis of the cylindrical lens. The position of the line focus in a line sensor can easily be measured by detecting the photo-cell which indicates the maximum output. Preliminary experiments suggest that the shape of the human torso surface can be measured with fairly good accuracy.

Paper Details

Date Published: 12 July 1983
PDF: 9 pages
Proc. SPIE 0361, Biostereometrics '82, (12 July 1983); doi: 10.1117/12.966000
Show Author Affiliations
Yasuo Yamashita, Tokai University (Japan)
Nobumasa Suzuki, Institute of Human Posture Research (Japan)
Masamitsu Oshima, Institute of Human Posture Research (Japan)
Yoshiomi Yamaguchi, Institute of Human Posture Research (Japan)

Published in SPIE Proceedings Vol. 0361:
Biostereometrics '82
Robin E. Herron, Editor(s)

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