Three-Dimensional Stereometric Measurement System Using Optical Scanners, Cylindrical Lenses, And Line Sensors

Yasuo Yamashita; Nobumasa Suzuki; Masamitsu Oshima; Yoshiomi Yamaguchi

doi:10.1117/12.966000

12 July 1983 Three-Dimensional Stereometric Measurement System Using Optical Scanners, Cylindrical Lenses, And Line Sensors

Yasuo Yamashita, Nobumasa Suzuki, Masamitsu Oshima, Yoshiomi Yamaguchi

Author Affiliations +

Proceedings Volume 0361, Biostereometrics '82; (1983) https://doi.org/10.1117/12.966000
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

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.

Citation Download Citation

Yasuo Yamashita, Nobumasa Suzuki, Masamitsu Oshima, and Yoshiomi Yamaguchi "Three-Dimensional Stereometric Measurement System Using Optical Scanners, Cylindrical Lenses, And Line Sensors", Proc. SPIE 0361, Biostereometrics '82, (12 July 1983); https://doi.org/10.1117/12.966000

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available