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Proceedings Paper

Simulation and analysis about noisy range images of laser radar
Author(s): Mingbo Zhao; Jun He; Qiang Fu; Dan Xi
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Paper Abstract

A measured range image of imaging laser radar (ladar) is usually disturbed by dropouts and outliers. For the difficulty of obtaining measured data and controlling noise level of dropouts and outliers, a new simulation method for range image with noise is proposed. Based on the noise formation mechanism of ladar range image, an accurate ladar range imaging model is formulated, including three major influencing factors: speckle, atmospheric turbulence and receiver noise. The noisy range images under different scenarios are obtained using MATLABTM. Analysis on simulation results reveals that: (1) Despite of detection strategy, the speckle, the atmospheric turbulence and the receiver noise are major factors which cause dropouts and outliers. (2) The receiver noise itself has limited effect on outliers. However, if other factors (speckle, atmospheric turbulence, etc.) also exist, the effect will be sharply enhanced. (3) Both dropouts and outliers exist in background and target regions.

Paper Details

Date Published: 20 August 2011
PDF: 10 pages
Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81922D (20 August 2011); doi: 10.1117/12.900578
Show Author Affiliations
Mingbo Zhao, National Univ. of Defense Technology (China)
PLA, No.93246 Troop (China)
Jun He, National Univ. of Defense Technology (China)
Qiang Fu, National Univ. of Defense Technology (China)
Dan Xi, PLA, No.66325 Troop (China)


Published in SPIE Proceedings Vol. 8192:
International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging
Farzin Amzajerdian; Weibiao Chen; Chunqing Gao; Tianyu Xie, Editor(s)

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