Chinese Optics Letters, Volume. 14, Issue 11, 111403(2016)

Three-dimensional catadioptric vision sensor using omnidirectional dot matrix projection

Fuqiang Zhou1、*, Xin Chen1, Haishu Tan2, and Xinghua Chai1
Author Affiliations
  • 1Key Laboratory of Precision Opto-mechatronics Technology, Ministry of Education, Beihang University, Beijing 100191, China
  • 2Department of Electronic Information Engineering, Foshan University, Foshan 528000, China
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    Figures & Tables(18)
    Structure design of ODMP sensor.
    Principle model of reflector designation.
    Resolution model of multi-dot-field local reconstruction sensor.
    Measurement model of multi-dot-field local reconstruction sensor.
    Resolution characteristics of the three reflectors.
    Shape of designed hyperbola reflector (ξ=0).
    Influence of angle of view field with resolution.
    Wavefront aberration of the reflector.
    Fraction of enclosed energy.
    MTF result of designed reflector.
    Measurement model of accuracy.
    Experimental image.
    Fitting calibration target in four place using 5×5 ODMP.
    RMS error with the change of ODMP.
    Compared measurement error in x, y, z directions.
    Compared results in x, y, z directions (5×5 ODMP).
    • Table 1. Configuration of Multi-Dot-Field Local Reconstruction Sensor

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      Table 1. Configuration of Multi-Dot-Field Local Reconstruction Sensor

      CategoryParameters
      CameraInterface: GigE visionResolution: 2456(H)×2058(V)
      Pixel size: 3.5(μm)×3.5(μm)
      Optic size: (2/3) in.Frame rate: 15 fps
      LensFocal length: 12 mmLens aperture F: 10 mm
      Horizontal angle of view: 49.25°
      Dimensions: 29.5mm(D)×28.5mm(L)
      The diameter of circle of confusion: 0.033 mm
      Center dot projectorSize: ϕ12×35mmWavelength: 650 nm
      Operating voltage: DC 5 V
      Fan angle: 90°Output power: 2.5 mW
    • Table 2. Configuration of Hyperbola Mirror

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      Table 2. Configuration of Hyperbola Mirror

      Hyperbola reflectorEccentricity e: 1.03
      the focus of the conic section p: 120 mm
      the reflector profile: z2/1870.2165x2+y2/1729.8112=1
      Distance to camera optical center h: 60 mm
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    Fuqiang Zhou, Xin Chen, Haishu Tan, Xinghua Chai. Three-dimensional catadioptric vision sensor using omnidirectional dot matrix projection[J]. Chinese Optics Letters, 2016, 14(11): 111403

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Jul. 1, 2016

    Accepted: Sep. 23, 2016

    Published Online: Aug. 2, 2018

    The Author Email: Fuqiang Zhou (zfq@buaa.edu.cn)

    DOI:10.3788/COL201614.111403

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