Acta Photonica Sinica, Volume. 54, Issue 1, 0110004(2025)

Inversion Method of Ship SO2 Emission Rate Based on Machine Vision

Weiwei HE*... Xiangyu LIU, Huiliang ZHANG, Qixin TANG, Qihang CAO, Shitong ZHONG and Mingkun SUN |Show fewer author(s)
Author Affiliations
  • School of Physics and Electronic Information,Yantai University,Yantai 264005,China
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    Figures & Tables(10)
    SO2 absorption cross section,solar scattering spectrum and transmittance curves of 310 nm and 330 nm filters
    Calibration curve obtained by spectral calibration method
    Position diagram of the filter
    Signal-to-noise ratio of SO2 camera with different half-peak all-pass bandwidth
    Ship exhaust pollutant monitor
    Experimental sites
    SO2 concentration image acquisition
    SO2 velocity field image of ship exhaust
    SO2 emission rate obtained by Farneback optical flow algorithm
    • Table 1. Experimental instrument parameter setting

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      Table 1. Experimental instrument parameter setting

      InstrumentParameter
      UV camera(Dhyana400BSIV3)Resolution1 024×1 024
      Pixel size6.5 μm×6.5 μm
      Dark current75e-/pixel/s
      Frame rate5-fps-@-USB-16 bit
      Exposure time of signal channel A50 ms
      Exposure time of reference channel B50 ms
      UV lens(10540UVC)Optical dimensions15.71 mm
      Field angle9.8°
      Focal length105 mm
      UV filterFilter A(XBPA310)Center wavelength:310 nm
      Full width at half maximum:10 nm
      Filter B(XBPA330)Center wavelength:330 nm
      Full width at half maximum:10 nm
      Spectrometer(Brolight-BIM6704)Spectral resolution0.25 nm
      Spectral range180~413 nm
      Slit10 μm
      Integral time1 s
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    Weiwei HE, Xiangyu LIU, Huiliang ZHANG, Qixin TANG, Qihang CAO, Shitong ZHONG, Mingkun SUN. Inversion Method of Ship SO2 Emission Rate Based on Machine Vision[J]. Acta Photonica Sinica, 2025, 54(1): 0110004

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    Paper Information

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    Received: Jun. 3, 2024

    Accepted: Jul. 31, 2024

    Published Online: Mar. 5, 2025

    The Author Email: HE Weiwei (heweiwei@ytu.edu.cn)

    DOI:10.3788/gzxb20255401.0110004

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