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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 32, Iss. 35 — Dec. 10, 1993
  • pp: 7164–7169

Parallel three-dimensional sensing by color-coded triangulation

Gerd Häusler and Dieter Ritter  »View Author Affiliations


Applied Optics, Vol. 32, Issue 35, pp. 7164-7169 (1993)
http://dx.doi.org/10.1364/AO.32.007164


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Abstract

We discuss a three-dimensional sensor that combines coded illumination and triangulation. The sensor supplies the distance of ~250,000 object pixels (TV format) in 40 ms (one single TV frame period). The method is based on the following principle: a color spectrum of a white-light source is imaged onto the object by illumination from one certain direction. The object is observed by a color TV camera from a direction of observation, which is different from the direction of illumination. The color (hue) of each pixel is a measure of its distance from a reference plane. It can be evaluated by the three (red-green-blue) output channels of the CCD camera. This evaluation can be implemented within TV real time. Even colored objects can be measured. The resolution achieved is 50–150 depth steps.

© 1993 Optical Society of America

History
Original Manuscript: November 23, 1992
Published: December 10, 1993

Citation
Gerd Häusler and Dieter Ritter, "Parallel three-dimensional sensing by color-coded triangulation," Appl. Opt. 32, 7164-7169 (1993)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-32-35-7164


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References

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