Method and apparatus for measuring three-dimensional position of

Details Method and apparatus for measuring three-dimensional position of Method and apparatus for measuring three-dimensional position of

1993-04-05

1995-11-21

Pham, Hoa Q.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

348 65, 600101, G02B 2326

Patent

active

054692547

ABSTRACT:
An image of a pipe having a uniform cross section, e.g., a circular cross section, is imaged with an endoscope and is displayed on a monitor screen. A measuring coordinate system for determining a three-dimensional position on a surface of the pipe from a position in the image is calculated by using information which relates to a position in the image and a corresponding actual position on the pipe surface, and which consists of extracted image information on the displayed image, e.g., information on the position of a cross-sectional figure and the position of a vanishing point, and known information on the size of the pipe and an imaging optical system.

REFERENCES:
patent: 4340302 (1982-07-01), Oku
patent: 4588294 (1986-05-01), Siegmund
patent: 4702229 (1987-10-01), Zobel
patent: 4916533 (1990-04-01), Gillies et al.
patent: 4980763 (1990-12-01), Lia
patent: 5018509 (1991-05-01), Suzuki et al.
patent: 5036464 (1991-07-01), Gillies et al.
patent: 5048956 (1991-09-01), Sakamoto et al.
patent: 5070401 (1991-12-01), Salvati et al.

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