Simulation and analysis about noisy range images of laser radar

Mingbo Zhao; Jun He; Qiang Fu; Dan Xi

doi:10.1117/12.900578

19 August 2011 Simulation and analysis about noisy range images of laser radar

Mingbo Zhao, Jun He, Qiang Fu, Dan Xi

Proceedings Volume 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging; 81922D (2011) https://doi.org/10.1117/12.900578
Event: International Symposium on Photoelectronic Detection and Imaging 2011, 2011, Beijing, China

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 MATLAB^TM. 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.

Citation Download Citation

Mingbo Zhao, Jun He, Qiang Fu, and Dan Xi "Simulation and analysis about noisy range images of laser radar", 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 (19 August 2011); https://doi.org/10.1117/12.900578

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