Infrared and Laser Engineering, Volume. 50, Issue 7, 20210162(2021)

High-resolution three-dimensional imaging based on all-fiber photon-counting Lidar system

Jingjing Guo1,2, Xiaoyan Fei3, Peng Ge1,2、*, Anran Zhou1,2, Lei Wang1,2, Zhengqi Li1,2, and Lei Sheng1,2
Author Affiliations
  • 1The 38th Research Institute of China Electronics Technology Group Corporation, Hefei 230088, China
  • 2Key Laboratory of Aperture Array and Space Application, Hefei 230088, China
  • 3No. 93209, People’s Liberation Army of China, China
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    Figures & Tables(12)
    Block diagram of photon-counting Lidar system
    Sub-pixel scanning method
    Beam reflection by a mirror
    Geometry distortion caused by a swing mirror
    Design of the rotation platform
    [in Chinese]
    Intensity image of the bottom of the poly. (a) Photo of the target taken by a visible-band camera; (b) Noise threshold b = 2.5 Eyb; (c) Self-adaptive noise threshold; (d) Noise censoring results
    Image reconstruction of the poly. (a) Intensity image; (b) Range image; (c) 3D point cloud reconstruction
    Photo of the target scene taken by a visible-band camera
    Multi-range image reconstruction results. (a) Intensity image E1; (b) Intensity image E2; (c) Depth imageL1; (d) Depth Estimation L2
    3D point cloud reconstruction. (a) Multi-range object reconstruction; (b) Enlarged image of the building 3.1 km away; (c) Enlarged image of the cables 1.1 km away
    • Table 1. Key parameters of the optical system

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      Table 1. Key parameters of the optical system

      DevicesParametersValue
      LaserWavelength/nm1064
      Pulse repetition frequency/kHz40
      Peak energy/μJ6
      Pulse width/ns5
      Emitting collimatorFocus length/mm80
      Receiving telescopeDiameter/mm20.5
      Focus length/mm40
      FiberFiber diameter/μm9/125
      FilterBand width/nm1
      SPADDark count/cps100
      Dead time/ns22
      Detection efficiency2%@1064 nm
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    Jingjing Guo, Xiaoyan Fei, Peng Ge, Anran Zhou, Lei Wang, Zhengqi Li, Lei Sheng. High-resolution three-dimensional imaging based on all-fiber photon-counting Lidar system[J]. Infrared and Laser Engineering, 2021, 50(7): 20210162

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    Paper Information

    Category: Lasers & Laser optics

    Received: Mar. 13, 2021

    Accepted: --

    Published Online: Aug. 23, 2021

    The Author Email: Peng Ge (gepeng_cas@qq.com)

    DOI:10.3788/IRLA20210162

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