Apparatus for measuring three-dimensional curved surface shapes

Details Apparatus for measuring three-dimensional curved surface shapes Apparatus for measuring three-dimensional curved surface shapes

1990-03-20

1992-04-14

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

G01B 1124

Patent

active

051042274

ABSTRACT:
A three-dimensional curved surface shape measuring apparatus of the slit light rotating type. In accordance with a composite image .theta.(x', y') produced when a slit light is rotationally scanned with respect to a picture of an object to be measured and horizontal displacements x.sub.o and vertical displacement z.sub.o of an axis of rotation of the slit light with respect to an origin of a reference plane, a necessary computational processing is performed to determine a three-dimensional shape f(x, y) of the object surface which is free of distortion due to a perspective effect of a television camera.

REFERENCES:
patent: 4472056 (1984-09-01), Nakagawa et al.
patent: 4794262 (1988-12-01), Sato et al.
"Handbook for Image Processing" (published by Shokodo Co.) Jun. 8, 1987.

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