• Chinese Optics Letters
  • Vol. 15, Issue 10, 102802 (2017)
Liang Sun1、2, Xinwei Wang1、3、*, Pengdao Ren1, Pingshun Lei1, Songtao Fan1, Yan Zhou1、3, and Yuliang Liu1、4
Author Affiliations
  • 1Optoelectronics System Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 4College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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    DOI: 10.3788/COL201715.102802 Cite this Article Set citation alerts
    Liang Sun, Xinwei Wang, Pengdao Ren, Pingshun Lei, Songtao Fan, Yan Zhou, Yuliang Liu. Coordinate difference homogenization matching method for motion correction in 3D range-intensity correlation laser imaging[J]. Chinese Optics Letters, 2017, 15(10): 102802 Copy Citation Text show less

    Abstract

    This Letter proposes a coordinate difference homogenization matching method to solve motion influence in three-dimensional (3D) range-intensity correlation laser imaging. Firstly, features and feature pairs of gate images are obtained by speeded-up robust figures and bi-directional feature matching methods. The original mean value of the feature-pair coordinate differences is calculated. Comparing the coordinate differences with the original mean value, the wrong feature pairs are removed, and then an optimized mean value is updated. The final feature-pair coordinates are re-registered based on the updated mean value. Thus, an accurate transformation is established to rectify motion gate images for 3D reconstruction. In the experiment, a 3D image of a tower at 780 m is successfully captured by our laser gated imaging system on a pan–tilt device.
    (Δu,Δv)=(i=1I(uiui)I,i=1I(vivi)I),(1)

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    (ui,vi)=(uiΔu,viΔv).(2)

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    Liang Sun, Xinwei Wang, Pengdao Ren, Pingshun Lei, Songtao Fan, Yan Zhou, Yuliang Liu. Coordinate difference homogenization matching method for motion correction in 3D range-intensity correlation laser imaging[J]. Chinese Optics Letters, 2017, 15(10): 102802
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