Acta Optica Sinica, Volume. 40, Issue 14, 1411004(2020)

Ranging Method Based on Binocular Zoom Super-Resolution Imaging

Shiting Liu, Weiqi Jin*, Li Li, and Su Qiu
Author Affiliations
  • MOE Key Laboratory of Optoelectronic Imaging Technology and System, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
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    Figures & Tables(11)
    Basic principle diagram of binocular vision measurement
    Downsampling process of images with different focal lengths
    Downsampling process of image
    Images with different downsampling factors. (a) Original image; (b) ξ=16/8; (c) ξ=16/7; (d) ξ=16/6; (e) ξ=16/5; (f) ξ=16/4
    Comparison of maximum focal length images and super-resolution images. (a) Interpolated image with maximum focal length; (b) super-resolution image; (c) partially enlarged image of interpolated image with maximum focal length; (d) partially enlarged image of super-resolution image
    Resolution board images at different focal lengths and enlarged view of dotted frame. (a) 8.142 mm; (b) 9.024 mm; (c) 9.797 mm; (d) 10.201 mm; (e) super-resolution image; (f) enlarged image of fig. (b); (g) enlarged image of fig. (c); (h) enlarged image of fig. (d); (i) enlarged image of fig. (e)
    Experiment of indoor scene targets ranging. (a) Left maximum focal length image; (b) right maximum focal length image; (c) left super-resolution image; (d) right super-resolution image
    Experiment of outdoor scene targets ranging. (a) Left maximum focal length image; (b) right maximum focal length image; (c) left super-resolution image; (d) right super-resolution image
    • Table 1. Quantitative evaluation of simulation results

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      Table 1. Quantitative evaluation of simulation results

      FigurePSNR /dBSSIM
      Interpolated image with maximum focal length33.76840.9730
      Super-resolution image35.85260.9841
    • Table 2. Ranging results of binocular zoom ranging system

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      Table 2. Ranging results of binocular zoom ranging system

      Actualdistance /mmTraditionalProposed
      Focallength /mmCalculatedistance /mmRelativeerror /%Equivalent focallength /mmCalculatedistance /mmRelativeerror /%
      1881(target 1)18501.6518591.17
      3120(target 2)10.70530472.3421.410(Super-resolution)30711.57
      6275(target 3)60323.8760853.03
      9333(target 4)87875.8589554.05
    • Table 3. Ranging results of targets in outdoor scene

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      Table 3. Ranging results of targets in outdoor scene

      Actualdistance /mTraditionalProposed
      Focallength / mmCalculatedistance / mRelativeerror /%Equivalent focallength / mmCalculatedistance /mRelativeerror /%
      167 (target 1)74.091172.4793.28148.182(Super-resolution)170.3352.00
      272 (target 2)286.1735.21281.5723.52
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    Shiting Liu, Weiqi Jin, Li Li, Su Qiu. Ranging Method Based on Binocular Zoom Super-Resolution Imaging[J]. Acta Optica Sinica, 2020, 40(14): 1411004

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    Paper Information

    Category: Imaging Systems

    Received: Feb. 17, 2020

    Accepted: Apr. 13, 2020

    Published Online: Jul. 23, 2020

    The Author Email: Jin Weiqi (jinwq@bit.edu.cn)

    DOI:10.3788/AOS202040.1411004

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