OPT OpenIR  > 空间光学应用研究室
Modified slanted-edge method to measure the modulation transfer function of camera
Zhang, Haosu1,2; Li, Chuang1; Duan, Yaxuan1,2
Department空间光学应用研究室
2018
Source PublicationOPTIK
ISSN0030-4026
Volume157Pages:635-643
Contribution Rank1
Abstract

The slanted-edge method specified in ISO Standard 12223, which experiences large errors in the camera modulation transfer function(MTF) due to tilt angle error in the knife-edge resulting in non-uniform sampling of the edge spread function. In order to resolve this problem, a modified slanted-edge method for camera MTF measurement is proposed. By applying a simple direct calculation of the Fourier transform of the derivative for the non-uniform sampling data, the camera super-sampled MTF results are obtained. Theoretical simulations for images with and Without noise under different tilt angle errors are run using the proposed method. It is demonstrated that the MTF results are insensitive to tilt angle errors. To verify the accuracy of the proposed method, an experimental setup for camera MTF measurement is established. Measurement results show that the proposed method is superior to traditional methods, and improves the universality of the slanted knife-edge method for camera MTF measurement. (C) 2017 Elsevier GmbH. All rights reserved.

KeywordMeasurement Modulation Transfer Function Cameras Numerical Approximation And Analysis
DOI10.1016/j.ijleo.2017.11.161
Indexed BySCI ; EI
Language英语
WOS IDWOS:000424186500080
EI Accession Number20174804457939
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30775
Collection空间光学应用研究室
Affiliation1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Shaanxi, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 10039, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Haosu,Li, Chuang,Duan, Yaxuan. Modified slanted-edge method to measure the modulation transfer function of camera[J]. OPTIK,2018,157:635-643.
APA Zhang, Haosu,Li, Chuang,&Duan, Yaxuan.(2018).Modified slanted-edge method to measure the modulation transfer function of camera.OPTIK,157,635-643.
MLA Zhang, Haosu,et al."Modified slanted-edge method to measure the modulation transfer function of camera".OPTIK 157(2018):635-643.
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