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Proceedings Article

Comparison of different analytical edge spread function models for MTF calculation using curve-fitting

[+] Author Affiliations
Tiecheng Li, Huajun Feng, Zhihai Xu, Xiaotong Li, Zhaofeng Cen, Qi Li

Zhejiang Univ. (China)

Proc. SPIE 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications, 74981H (October 30, 2009); doi:10.1117/12.832793
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From Conference Volume 7498

  • MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications
  • Henri Maître; Hong Sun; Bangjun Lei; Jufu Feng
  • Yichang, China | October 30, 2009

abstract

The measurement of the modulation transfer function (MTF) is one of the key steps in characterizing the signal transfer characteristics of an imaging system as a function of spatial frequency in terms of linear response theory. Various methods have been proposed to determine the MTF of an imaging system which are based on point, slit or edge images. The slanted-edge method is the ISO 12233 standard for the MTF measurement of electronic still-picture cameras. In this paper, the method is modified to avoid amplifying the noise during the derivative computation by performing curve-fitting. In the experiments, we compare several different analytical function models for the ESF fitting and find that Logistic (Fermi) function gives the best result.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Tiecheng Li ; Huajun Feng ; Zhihai Xu ; Xiaotong Li ; Zhaofeng Cen, et al.
"Comparison of different analytical edge spread function models for MTF calculation using curve-fitting", Proc. SPIE 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications, 74981H (October 30, 2009); doi:10.1117/12.832793; http://dx.doi.org/10.1117/12.832793


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