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Chinese Journal of Lasers, Volume. 51, Issue 8, 0814001(2024)

Super‐Resolution Reconstruction of Terahertz Image Based on Linear Array Scanning Imaging

Yufeng Guo1、*, Shangzhong Jin1, Hongguang Li2, Ziwei Zeng1, and LiaoWentao1
Author Affiliations
  • 1College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, Zhejiang, China
  • 2Xi’an Institute of Applied Optics, Xi’an 710065, Shaanxi, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (7)
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    References (19)
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    Figures & Tables(7)
    Optical path diagram of terahertz linear array scanning imaging system

    Fig. 1. Optical path diagram of terahertz linear array scanning imaging system

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    Structure diagram of generative network

    Fig. 2. Structure diagram of generative network

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    Architecture of EARDB

    Fig. 3. Architecture of EARDB

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    Structure diagram of U-net discriminant network

    Fig. 4. Structure diagram of U-net discriminant network

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    Experimental results of toothbrush THZ image. (a) Low resolution image; (b) bicubic interpolation; (c) SRResnet; (d) SRGAN;(e) ESRGAN; (f) our method

    Fig. 5. Experimental results of toothbrush THZ image. (a) Low resolution image; (b) bicubic interpolation; (c) SRResnet; (d) SRGAN;(e) ESRGAN; (f) our method

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    Experimental results of scissors THZ image. (a) Low resolution image; (b) bicubic interpolation; (c) SRResnet; (d) SRGAN; (e) ESRGAN; (f) our method

    Fig. 6. Experimental results of scissors THZ image. (a) Low resolution image; (b) bicubic interpolation; (c) SRResnet; (d) SRGAN; (e) ESRGAN; (f) our method

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    • Table 1. Objective evaluation results of reconstructed images by different algorithms

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      Table 1. Objective evaluation results of reconstructed images by different algorithms

      ParameterBicubic interpolationSRResnetSRGANESRGANOur method
      NIQE11.4307.85610.5058.5256.965
      PSNR—14.92317.80820.60123.281
      SSIM—0.76540.75640.78560.8953
      ES86.252108.587106.525110.954118.548
      AG8.47513.57812.16913.54215.167
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    Yufeng Guo, Shangzhong Jin, Hongguang Li, Ziwei Zeng, LiaoWentao. Super‐Resolution Reconstruction of Terahertz Image Based on Linear Array Scanning Imaging[J]. Chinese Journal of Lasers, 2024, 51(8): 0814001

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    Paper Information

    Category: terahertz technology

    Received: Oct. 16, 2023

    Accepted: Dec. 11, 2023

    Published Online: Apr. 11, 2024

    The Author Email: Guo Yufeng (gyf1023@foxmail.com)

    DOI:10.3788/CJL231284

    CSTR:32183.14.CJL231284

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology