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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 21 — Jul. 20, 2011
  • pp: 3824–3828

Image coding for three-dimensional range-gated imaging

Martin Laurenzis and Emmanuel Bacher  »View Author Affiliations


Applied Optics, Vol. 50, Issue 21, pp. 3824-3828 (2011)
http://dx.doi.org/10.1364/AO.50.003824


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Abstract

In the present paper we discuss the method of image coding by multiple exposure of range-gated images. This method enlarges the depth mapping range of range-gated imaging systems exponentially with the number of utilized images. We developed a theoretical model to give a precise prediction of the number of permutations that can be used for image coding. For what we believe is the first time, we realized an image coding sequence for three range-gated images to enlarge the depth mapping range by a factor of 12. We demonstrate three-dimensional imaging in a range of 460 to 1000 m using a laser pulse width of 300 ns . Because of the impact of noise, a critical linking error occurs during the encoding of the intensity images. It is possible to reduce this error by the application of effective noise reduction strategies and the use of a threshold value to the tolerance drift of intensity levels.

© 2011 Optical Society of America

OCIS Codes
(100.6890) Image processing : Three-dimensional image processing
(110.6880) Imaging systems : Three-dimensional image acquisition

ToC Category:
Image Processing

History
Original Manuscript: February 28, 2011
Revised Manuscript: May 12, 2011
Manuscript Accepted: May 24, 2011
Published: July 11, 2011

Citation
Martin Laurenzis and Emmanuel Bacher, "Image coding for three-dimensional range-gated imaging," Appl. Opt. 50, 3824-3828 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-21-3824

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