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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 11, Iss. 11 — Nov. 1, 1994
  • pp: 2925–2934

Simple range cameras based on focal error

A. Pentland, S. Scherock, T. Darrell, and B. Girod  »View Author Affiliations


JOSA A, Vol. 11, Issue 11, pp. 2925-2934 (1994)
http://dx.doi.org/10.1364/JOSAA.11.002925


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Abstract

We describe research on two imaging range sensors that use defocus to estimate range. One technique is completely passive and provides dense range measurements in textured areas with an rms error of 2.5%. This method can be useful when stereo is unreliable because of correspondence errors or when imaging geometry prevents the use of multiple viewpoints (e.g., microscopy). The second technique uses structured light and provides dense range measurements with an rms error of 0.5%. This method can be useful when imaging geometry prevents the use of multiple viewpoints and for acquiring range imagery of rapidly moving objects, as the structured light can be delivered in a single stroboscopic flash.

© 1994 Optical Society of America

History
Original Manuscript: July 22, 1993
Revised Manuscript: March 28, 1994
Manuscript Accepted: April 6, 1994
Published: November 1, 1994

Citation
A. Pentland, S. Scherock, T. Darrell, and B. Girod, "Simple range cameras based on focal error," J. Opt. Soc. Am. A 11, 2925-2934 (1994)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-11-11-2925


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References

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