Volume 12 Issue 6
Dec.  2019
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ZHENG Yun-da, HUANG Wei, PAN Yun, XU Ming-fei, JIA Shu-qiang, ZHANG Xiao-fei, LU Yong-nan. Wide-spectrum PSF estimation for simple optical system[J]. Chinese Optics, 2019, 12(6): 1418-1430. doi: 10.3788/CO.20191206.1418
Citation: ZHENG Yun-da, HUANG Wei, PAN Yun, XU Ming-fei, JIA Shu-qiang, ZHANG Xiao-fei, LU Yong-nan. Wide-spectrum PSF estimation for simple optical system[J]. Chinese Optics, 2019, 12(6): 1418-1430. doi: 10.3788/CO.20191206.1418

Wide-spectrum PSF estimation for simple optical system

doi: 10.3788/CO.20191206.1418
Funds:

the State Key Laboratory of Applied Optics 

More Information
  • Author Bio:

    ZHENG Yunda (1992—), Ph.D., male, from Yanbian, Jilin, obtained a bachelor's degree from the University of Science and Technology of China in 2014, he is mainly engaged in research in image restoration and optical design.E-mail:yundazheng@foxmail.com

    HUANG Wei (1965—), researcher and doctoral tutor, male, from Jilin Changchun, he is mainly engaged in the research of optical systems design.E-mail:huangw@ciomp.ac.cn

  • Corresponding author: HUANG Wei, E-mail:huangw@ciomp.ac.cn
  • Received Date: 10 Jan 2019
  • Rev Recd Date: 09 Mar 2019
  • Publish Date: 01 Dec 2019
  • In order to obtain point spread functions(PSFs) of a simple optical system accurately and improve the restored image quality, we present a wide-spectrum PSF estimation method based on PSF measurements. First, narrow-band PSFs are measured, and combining image matching algorithm, the sensor position and the deviation of the optical axis in the real optical system are calibrated. Then, the PSF of each wavelength and field of view is simulated and used for calculating the wide-spectrum PSFs of the real optical system according to the object reflectance spectrum and the spectral sensitivity information of the sensor. Experimental results indicate that the proposed PSF estimation method is better than the narrow-band PSF estimation and blind PSF estimation. The restored image is more stable and its quality is improved significantly. The proposed method can estimate the PSFs of the real optical imaging system accurately.

     

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