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Acta Optica Sinica, Volume. 40, Issue 14, 1411003(2020)

Research on Liquid Crystal Lens Hill Climbing Autofocus Algorithm

Tiancheng Lan1, Ronghua Lan2, Xiaoxi Chen1、**, Shuang Du1, Xuehui Zhu2, Junrui Zhang2, Qichang Li3, and Mao Ye1、*
Author Affiliations
  • 1School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China
  • 2Chengdu BOE Optoelectronics Technology Co., Ltd., Chengdu, Sichuan 611731, China
  • 3Micro LCL Technology Co., Ltd., Chengdu, Sichuan 610051, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (6)
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    References (15)
    Cited By (12)
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    Figures & Tables(6)
    Schematic of LC lens imaging system

    Fig. 1. Schematic of LC lens imaging system

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    Schematic of LC lens structure[8-9]

    Fig. 2. Schematic of LC lens structure[8-9]

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    Focusing evaluation curves of ROI

    Fig. 3. Focusing evaluation curves of ROI

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    Autofocus effect panorama

    Fig. 4. Autofocus effect panorama

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    Autofocus results in ROI

    Fig. 5. Autofocus results in ROI

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    • Table 1. Running time and sensitivity of different focusing evaluation functions

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      Table 1. Running time and sensitivity of different focusing evaluation functions

      MethodTime /msSensitivity
      ATEN1.321.09
      DCT912.290.49
      LAP0.201.85
      LOG1.030.91
      AOE1.261.15
      TEN1.160.10
      VAR0.38
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    Tiancheng Lan, Ronghua Lan, Xiaoxi Chen, Shuang Du, Xuehui Zhu, Junrui Zhang, Qichang Li, Mao Ye. Research on Liquid Crystal Lens Hill Climbing Autofocus Algorithm[J]. Acta Optica Sinica, 2020, 40(14): 1411003

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    Paper Information

    Category: Imaging Systems

    Received: Feb. 28, 2020

    Accepted: Apr. 13, 2020

    Published Online: Jul. 23, 2020

    The Author Email: Chen Xiaoxi (chenxiaoxi@uestc.edu.cn), Ye Mao (mao_ye@uestc.edu.cn)

    DOI:10.3788/AOS202040.1411003

    Topics

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