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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 8 — Apr. 22, 2013
  • pp: 9247–9254

A real-time noise filtering strategy for photon counting 3D imaging lidar

Zijing Zhang, Yuan Zhao, Yong Zhang, Long Wu, and Jianzhong Su  »View Author Affiliations


Optics Express, Vol. 21, Issue 8, pp. 9247-9254 (2013)
http://dx.doi.org/10.1364/OE.21.009247


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Abstract

For a direct-detection 3D imaging lidar, the use of Geiger mode avalanche photodiode (Gm-APD) could greatly enhance the detection sensitivity of the lidar system since each range measurement requires a single detected photon. Furthermore, Gm-APD offers significant advantages in reducing the size, mass, power and complexity of the system. However the inevitable noise, including the background noise, the dark count noise and so on, remains a significant challenge to obtain a clear 3D image of the target of interest. This paper presents a smart strategy, which can filter out false alarms in the stage of acquisition of raw time of flight (TOF) data and obtain a clear 3D image in real time. As a result, a clear 3D image is taken from the experimental system despite the background noise of the sunny day.

© 2013 OSA

OCIS Codes
(030.5260) Coherence and statistical optics : Photon counting
(110.4280) Imaging systems : Noise in imaging systems
(280.3640) Remote sensing and sensors : Lidar
(040.1345) Detectors : Avalanche photodiodes (APDs)

ToC Category:
Remote Sensing

History
Original Manuscript: January 25, 2013
Revised Manuscript: February 18, 2013
Manuscript Accepted: February 19, 2013
Published: April 8, 2013

Citation
Zijing Zhang, Yuan Zhao, Yong Zhang, Long Wu, and Jianzhong Su, "A real-time noise filtering strategy for photon counting 3D imaging lidar," Opt. Express 21, 9247-9254 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-8-9247


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References

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