Method of measuring three dimensional shape

Details Method of measuring three dimensional shape Method of measuring three dimensional shape

1991-11-25

1993-09-28

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

358106, 358107, 382 8, G01B 1124, H04N 718

Patent

active

052490351

ABSTRACT:
To eliminate complicated adjustment of the mutual positional relationships between cameras and an object to be measured in the method of measuring a three dimensional shape of an object, images of an object to be measured are taken from different directions by use of three or more imaging devices; a combination of at least two imaging devices is selected in such a way that an angle between an obtained object image and an epipolar line becomes close to a right angle; and image information generated by the selected imaging devices are used as measuring image information. The method is particularly suitable when line-shaped objects extending in various directions are automatically measured three-dimensionally.

REFERENCES:
patent: 3726591 (1973-04-01), Helava et al.
patent: 4654872 (1987-03-01), Hisano et al.
patent: 4982438 (1991-01-01), Usami et al.

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