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MTF testing device for photoelectric imaging system based on slit tilting method
Author(s): Dengkui Kang; Hongru Yang; Changlu Jiang; Bing Yu; Lei Wang; Shengyun Wang; Jiejing Chen
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Paper Abstract

Modulation transfer function (MTF) is one of significant parameters for designing and evaluating an photoelectric imaging system. As the traditional MTF measurement algorithm cannot meet the need of discrete sampling characteristics for photoelectric system, an automatic interpolaton and sub-pixel matching algorithm based on slit tilting method is proposed.Through the least-square analysis of line spread function (LSF),the tilting angle can be automatically calculated, and interpolaton of sub-pixel data can be precisely reconstructed. The noise of oscillation can be effectively restrained by a hanning window function. A device composed of target generator system, off-axis reflective collimator, mechanical adjustment, electrical control system, video acquisition module and comprehensive software was setup. The validity of the method was verified by experiments. The repeatability reached 0.007。

Paper Details

Date Published: 12 March 2019
PDF: 11 pages
Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 110230L (12 March 2019); doi: 10.1117/12.2520191
Show Author Affiliations
Dengkui Kang, Xi'an Institute of Applied Optics (China)
Hongru Yang, Xi'an Institute of Applied Optics (China)
Changlu Jiang, Xi'an Institute of Applied Optics (China)
Bing Yu, Xi’an Institute of Applied Optics (China)
Lei Wang, Xi'an Institute of Applied Optics (China)
Shengyun Wang, Xi'an Institute of Applied Optics (China)
Jiejing Chen, Xi'an Institute of Applied Optics (China)


Published in SPIE Proceedings Vol. 11023:
Fifth Symposium on Novel Optoelectronic Detection Technology and Application
Qifeng Yu; Wei Huang; You He, Editor(s)

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