Optical three-dimensional digital data acquisition system

Details Optical three-dimensional digital data acquisition system Optical three-dimensional digital data acquisition system

1984-09-24

1987-03-24

Birmiel, Howard A.

Image analysis

Histogram processing

For setting a threshold

382 42, 356376, G01B 1124

Patent

active

046531041

ABSTRACT:
The range of objects from a television camera is obtained by projecting a series of patterns of uniquely coded stripes of light onto the objects at an oblique angle to the optical axis of the camera and capturing in the camera the coded light signals reflected by the objects. Through proper selection and scaling of a coordinate system and related coding of the light stripes, the range of the object is determined for each pixel by simply subtracting one coordinate of the pixel from the binary coded light signal reflected into the pixel.

REFERENCES:
patent: 4259017 (1981-03-01), Ross
patent: 4272196 (1981-06-01), Indebetouw
patent: 4371866 (1983-02-01), Smith
"Surface Measurement by Space Encoded Projected Beam Systems", Posdamer et al., Computer Graphics and Image Processing 18, pp. 1-17, Academic Press, Inc., Mar. 1981.
"White Scanner 100A Users Manual", Technical Arts Corporation, Seattle, Wash.
"White Scanner 100A Preliminary", Technical Arts Corporation, Seattle, Wash.

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