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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 21 — Nov. 1, 2007
  • pp: 3146–3148

Long-range three-dimensional active imaging with superresolution depth mapping

Martin Laurenzis, Frank Christnacher, and David Monnin  »View Author Affiliations


Optics Letters, Vol. 32, Issue 21, pp. 3146-3148 (2007)
http://dx.doi.org/10.1364/OL.32.003146


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Abstract

We present a technique to overcome the depth resolution limitation for 3D active imaging. Applying microsecond laser pulses and sensor gate width, a scene of several hundred meters is illuminated and recorded in a single image. The trapezoid-shaped range intensity profile is analyzed to obtain both the reflectivity and the depth of scene. We demonstrate a 3D scene reconstruction in a depth of 650 to 1550 m from only three images with an accuracy of < 30 m . This depth accuracy is 10 times better than estimated from the classical resolution limit obtained for depth scanning active imaging with a similar number of images. Therefore, this technique enables superresolution depth mapping with a reduction of image data processing.

© 2007 Optical Society of America

OCIS Codes
(100.6890) Image processing : Three-dimensional image processing
(110.0110) Imaging systems : Imaging systems
(110.6880) Imaging systems : Three-dimensional image acquisition
(150.5670) Machine vision : Range finding
(150.6910) Machine vision : Three-dimensional sensing
(280.0280) Remote sensing and sensors : Remote sensing and sensors

ToC Category:
Imaging Systems

History
Original Manuscript: August 23, 2007
Revised Manuscript: September 26, 2007
Manuscript Accepted: September 28, 2007
Published: October 23, 2007

Citation
Martin Laurenzis, Frank Christnacher, and David Monnin, "Long-range three-dimensional active imaging with superresolution depth mapping," Opt. Lett. 32, 3146-3148 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-21-3146


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References

  1. R. G. Digger, R. H. Vollmerhausen, N. Devitt, C. Halfort, and K. J. Barnard, Opt. Eng. 43, 738 (2003).
  2. R. L. Espinola, E. L. Jacobs, C. E. Halford, R. Vollmerhausen, and D. H. Tofsted, Opt. Express 15, 3816 (2007). [CrossRef] [PubMed]
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  9. F. Christnacher, Y. Lutz, and D. Monnin, presented at the OPTRO 2005, Paris, France, 2005.
  10. F. Christnacher, M. Laurenzis, A. Matwyschuk, and D. Monnin, presented at the Méthodes et Techniques Optiques pour l'lndustrie, Mulhouse, France, 2006.

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