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Optical Engineering

Long-range three-dimensional imaging using range-gated laser radar images
Author(s): Pierre Andersson
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Paper Abstract

An approach to long-range 3-D imaging using laser illuminated range-gated viewing is presented. The basis for 3-D scene reconstruction is an image sequence acquired using a sliding gate delay time. Two different methods are suggested, and algorithm performance is investigated through Monte Carlo simulations using a simplified system and imaging model. Assumptions are justified by comparison with real measurements at range of 0.8 to 7.2 km. It is shown that range resolution and precision become significantly better than system design parameters such as gate length, gate transition length, and gate step length. The presented reconstruction methods thus enable high-precision range imaging using available long-range gated imaging systems.

Paper Details

Date Published: 1 March 2006
PDF: 10 pages
Opt. Eng. 45(3) 034301 doi: 10.1117/1.2183668
Published in: Optical Engineering Volume 45, Issue 3
Show Author Affiliations
Pierre Andersson, Swedish Defence Research Agency (Sweden)

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