• Acta Photonica Sinica
  • Vol. 50, Issue 9, 0911004 (2021)
Huangrong XU1、2, Jinheng LIU1、2, Yuanjie ZHANG1、2, Dengshan WU1, Hao FAN1、2, Xiangpeng FENG1, Geng ZHANG1、2, Bingliang HU1、2, and Weixing YU1、2
Author Affiliations
  • 1Key Laboratory of Spectral Imaging Technology of Chinese Academy of Sciences, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an70072, China
  • 2University of Chinese Academy of Science, Beijing100049, China
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    DOI: 10.3788/gzxb20215009.0911004 Cite this Article
    Huangrong XU, Jinheng LIU, Yuanjie ZHANG, Dengshan WU, Hao FAN, Xiangpeng FENG, Geng ZHANG, Bingliang HU, Weixing YU. UAV-borne Biomimetic Curved Compound-eye Imaging System for Velocity Measurement[J]. Acta Photonica Sinica, 2021, 50(9): 0911004 Copy Citation Text show less

    Abstract

    Based on the visual advantages of the biomimetic compound eye, the biomimetic curved compound-eye is applied to the unmanned aerial vehicle-borne photoelectric detection system to realize the airborne wide field-of-view and high-resolution detection of moving objects purposes. According to the characteristics of the biological compound eye, a lens array arranged on the curved surface in a hexagon is designed as compound-eye lens, combined with an optical relay subsystem and a CMOS image sensor to form a biomimetic curved compound-eye imaging and velocity measurement system. The developed biomimetic curved compound-eye imaging system has a field of view of 98°×98°, a system focal length of 5 mm, an angular resolution of 1.8 mrad and an F-number of 3.5. The size of the system is Ф123 mm ×195 mm, and the weight is 1.35 kg. According to the imaging principle of the biomimetic compound-eye and by taking advantage of the overlapping field of views between adjacent ommatidia, the velocity measurement principle of the biomimetic curved compound-eye is proposed. The velocity measurement experiment of a moving car shows that the velocity measurement method can effectively improve the test reliability and accuracy of the moving target.
    f'a=Hθ(1)

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    l=p(uij-uij')2+(vij-Δv-vij')2(2)

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    V=lDf'T(3)

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    Δv=Δv1+6Δv2+Δv3+8Δv4=1758

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    Δv=Δv1+7Δv2+Δv3+9Δv4=2007

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    Huangrong XU, Jinheng LIU, Yuanjie ZHANG, Dengshan WU, Hao FAN, Xiangpeng FENG, Geng ZHANG, Bingliang HU, Weixing YU. UAV-borne Biomimetic Curved Compound-eye Imaging System for Velocity Measurement[J]. Acta Photonica Sinica, 2021, 50(9): 0911004
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