Device for measuring a three-dimensional shape of an elongate me

Details Device for measuring a three-dimensional shape of an elongate me Device for measuring a three-dimensional shape of an elongate me

1992-03-13

1994-02-22

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

250560, G01B 1124

Patent

active

052892611

ABSTRACT:
A device for measuring a three-dimensional shape of an elongate member which comprises a first image detector and a second image detector, a projected image computing device, and a center line computing device. The first image detector and the second image detector detect a two-dimensional image of an image of the elongate member projected onto a planar surface. The projected image computing device computes each central line of the projected image of the elongate member from each of the images detected by the first image detector and the second image detector. Then, the center line computing device detects a plane including the central line obtained from the first image detector and the position of the first image detector, and another plane including the other central line obtained from the second image detector and the position of the second image detector, thereby obtaining a center line of the elongate member along which the planes intersect each other.

REFERENCES:
patent: 4122525 (1978-10-01), Eaton
patent: 4778274 (1988-10-01), Yogo
patent: 4848912 (1989-07-01), Sano et al.
patent: 4972090 (1990-11-01), Eaton
patent: 5008555 (1991-04-01), Mundy
patent: 5046852 (1991-09-01), Hametner et al.

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