Acta Optica Sinica, Volume. 34, Issue 11, 1110003(2014)

Fine and Rough Combined Auto-Focusing Method for Non-Mydriatic Fundus Camera

Chen Jian1,2、*, Zheng Shaohua1, Pan Lin1, and Yu Lun1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • show less
    References(26)

    [1] [1] D S Fong, L Aiello, T W Gardner, et al.. Retinopathy in diabetes [J]. Diabetes Care, 2004, 27(s1): s84-s87.

    [2] [2] K Alsabti, S Raizada, V B Wani, et al.. Efficacy and reliability of fundus digital camera as a screening tool for diabetic retinopathy in Kuwait [J]. Journal of Diabetes and its Complications, 2003, 17(4): 229-233.

    [4] [4] Pan Lin. Research on Tele-Screening System for Diabetic Retinopathy and Its Image Processing Key Technologies [D]. Fuzhou: Fuzhou University, 2011. 59-76.

    [5] [5] R Zeimer, S Zou, T Meeder, et al.. A fundus camera dedicated to the screening of diabetic retinopathy in the primary-care physician′s office [J]. Investigative Ophthalmology & Visual Science, 2002, 43(5): 1581-1587.

    [6] [6] M Moscaritolo, H Jampel, F Knezevich, et al.. An image based auto-focusing algorithm for digital fundus photography [J]. IEEE Transactions on Medical Imaging, 2009, 28(11): 1703-1707.

    [7] [7] A Marrugo, M Millán, G Cristóbal, et al.. No-reference quality metrics for eye fundus imaging [C]. Computer Analysis of Images and Patterns, 2011, 6854: 486-493.

    [8] [8] Huang Yang. Near-Infrared Fundus Camera Design [D]. Nanjing: Nanjing University of Science & Technology, 2011. 13-19.

    [9] [9] Zhai Yongping, Zhou Dongxiang, Liu Yunhui. Large range autofocusing algorithm for microscopy with small depth of field [J]. Acta Optica Sinica, 2012, 32(4): 0418001.

    [10] [10] Wang Zhongxun, Pan Yiming, Yin Shaoyun, et al.. Laser processing lens of long focal depth and high resolution [J]. Acta Optica Sinica, 2013, 33(2): 0222004.

    [11] [11] J Jeon, I Yoon, D Kim, et al.. Fully digital auto-focusing system with automatic focusing region selection and point spread function estimation [J]. IEEE Transactions on Consumer Electronics, 2010, 56(3): 1204-1210.

    [12] [12] X Xu, Y Wang, J Tang, et al.. Robust automatic focus algorithm for low contrast images using a new contrast measure [J]. Sensors, 2011, 11(9): 8281-8294.

    [13] [13] S Lee, J Yoo, Y Kumar, et al.. Reduced energy-ratio measure for robust autofocusing in digital camera [J]. Signal Processing Letters, 2009, 16(2): 133-136.

    [14] [14] C Shen, H H Chen. Robust focus measure for low-contrast images [C]. Digest of Technical Papers. International Conference on Consumer Electronics, 2006. 69-70.

    [17] [17] Gao Shiyi, Zhao Mingyang, Zhang Lei, et al.. Improved algorithm about subpixel edge detection of image based on Zernike orthogonal moments [J]. Acta Automation Sinica, 2008, 34(9): 1163-1168.

    [18] [18] Qu Yingdong, Li Rongde, Bai yanhua, et al.. A high-speed Zernike momnets edge operator based on 9×9 masks [J]. Journal of Optoelectronics·Laser, 2010, 21(11): 1683-1687.

    [19] [19] Wang Yaoming. Moment Function for Image: Principle, Algorithm and Application [M]. Shanghai: East China University of Science and Technology Press, 2002. 32-35.

    [20] [20] Shi Jinfeng, Wu Qingwen, Zhang Jianping, et al.. Thermal-optical analysis for optical window of high-altitude and high-speed aerial camera [J]. Acta Optica Sinica, 2012, 32(4): 0422004.

    [21] [21] S Ghosal, R Mehrotra. Detection of composite edges [J]. IEEE Transactions on Image Processing, 1994, 3(1): 14-25.

    [22] [22] Han Ke, Zhu Xiuchang, Feng Quan. Research on auto-focusing approaches for different object distance [J]. Journal of Nanjing University of Posts and Telecommunications (Natural Science), 2007, 27(6): 44-48.

    [23] [23] Wang Yong, Tan Yihua, Tian Jinwen. A new kind of sharpness evaluation function of image [J]. Journal of Wuhan University of Technology, 2007, 29(3): 124-126.

    [25] [25] Shi Hongwei, Shi Yaowu, Yang Shuang. Evaluation and selection of estimating function for auto-focus system of optical microscope [J]. Journal of Computer-Aided Design & Computer Graphics, 2013, 25(2): 235-240.

    [26] [26] Zhai Yongping, Zhou Dongxiang, Liu Yunhui, et al.. Design of evaluation index for auto-focusing function and optimal function selection [J]. Acta Optica Sinica, 2011, 31(4): 0418002.

    CLP Journals

    [1] Zheng Xin, Ai Liefu, Liu Kui, Su Benyue. Auto-Focusing Function for Microscopic Images Based on Global and Local Gray-Scale Variation[J]. Laser & Optoelectronics Progress, 2017, 54(8): 81801

    Tools

    Get Citation

    Copy Citation Text

    Chen Jian, Zheng Shaohua, Pan Lin, Yu Lun. Fine and Rough Combined Auto-Focusing Method for Non-Mydriatic Fundus Camera[J]. Acta Optica Sinica, 2014, 34(11): 1110003

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Image Processing

    Received: Apr. 18, 2014

    Accepted: --

    Published Online: Oct. 13, 2014

    The Author Email: Jian Chen (jchen321@126.com)

    DOI:10.3788/aos201434.1110003

    Topics