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Acta Optica Sinica, Volume. 44, Issue 2, 0211001(2024)

Design of End-to-End Depth-of-Field Extension Diffractive Optical Elements Based on Computational Imaging

Jiarui Ji, Hongbo Xie, and Lei Yang*
Author Affiliations
  • Key Laboratory of Optoelectronics Information Technology, Ministry of Education, College of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (26)
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    Figures & Tables(8)
    End-to-end model framework of an optical imaging system

    Fig. 1. End-to-end model framework of an optical imaging system

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    Optical model in the end-to-end framework

    Fig. 2. Optical model in the end-to-end framework

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    UNet network architecture

    Fig. 3. UNet network architecture

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    Comparison of PSF between Zemax paraxial model and end-to-end model at different defocus levels. (a) ϕdf=-30; (b) ϕdf=-20; (c) ϕdf=-10; (d) ϕdf=0; (e) ϕdf=10; (f) ϕdf=20; (g) ϕdf=30

    Fig. 4. Comparison of PSF between Zemax paraxial model and end-to-end model at different defocus levels. (a) ϕdf=-30; (b) ϕdf=-20; (c) ϕdf=-10; (d) ϕdf=0; (e) ϕdf=10; (f) ϕdf=20; (g) ϕdf=30

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    Height maps of depth-of-field extended diffractive element for two schemes. (a) Cubic phase plate; (b) rotationally symmetric DOE

    Fig. 5. Height maps of depth-of-field extended diffractive element for two schemes. (a) Cubic phase plate; (b) rotationally symmetric DOE

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    Comparison of image quality for different depth-of-field extension methods at various defocus amounts. (a) ϕdf=-30; (b) ϕdf=-20; (c) ϕdf=-10; (d) ϕdf=0; (e) ϕdf=10; (f) ϕdf=20; (g) ϕdf=30

    Fig. 6. Comparison of image quality for different depth-of-field extension methods at various defocus amounts. (a) ϕdf=-30; (b) ϕdf=-20; (c) ϕdf=-10; (d) ϕdf=0; (e) ϕdf=10; (f) ϕdf=20; (g) ϕdf=30

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    Variation of PSNR and SSIM for different depth-of-field extension methods on the test set. (a) (b) PSNR; (c) (d) SSIM

    Fig. 7. Variation of PSNR and SSIM for different depth-of-field extension methods on the test set. (a) (b) PSNR; (c) (d) SSIM

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    Variation of PSNR and SSIM for different depth-of-field extension methods at non-designed values on the test set. (a) (b) PSNR; (c) (d) SSIM

    Fig. 8. Variation of PSNR and SSIM for different depth-of-field extension methods at non-designed values on the test set. (a) (b) PSNR; (c) (d) SSIM

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    Jiarui Ji, Hongbo Xie, Lei Yang. Design of End-to-End Depth-of-Field Extension Diffractive Optical Elements Based on Computational Imaging[J]. Acta Optica Sinica, 2024, 44(2): 0211001

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    Paper Information

    Category: Imaging Systems

    Received: Jul. 17, 2023

    Accepted: Sep. 18, 2023

    Published Online: Jan. 11, 2024

    The Author Email: Yang Lei (yanglei@tju.edu.cn)

    DOI:10.3788/AOS231275

    Topics

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