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

Tiecheng Li; Huajun Feng

doi:10.1117/12.832793

30 October 2009 Comparison of different analytical edge spread function models for MTF calculation using curve-fitting

Tiecheng Li, Huajun Feng

Proceedings Volume 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications; 74981H (2009) https://doi.org/10.1117/12.832793
Event: Sixth International Symposium on Multispectral Image Processing and Pattern Recognition, 2009, Yichang, China

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.

Citation Download Citation

Tiecheng Li and Huajun Feng "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 (30 October 2009); https://doi.org/10.1117/12.832793

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