Modified slanted-edge method for camera modulation transfer function measurement using nonuniform fast Fourier transform technique | |
Duan, Yaxuan1,2; Xu, Songbo1; Yuan, Suochao1,3; Chen, Yongquan1; Li, Hongguang1; Da, Zhengshang1; Gao, Limin1 | |
作者部门 | 先进光学仪器研究室 |
2018 | |
发表期刊 | OPTICAL ENGINEERING |
ISSN | 0091-3286 |
卷号 | 57期号:1 |
产权排序 | 1 |
摘要 | ISO 12233 slanted-edge method experiences errors using fast Fourier transform (FFT) in the camera modulation transfer function (MTF) measurement due to tilt angle errors in the knife-edge resulting in nonuniform sampling of the edge spread function (ESF). In order to resolve this problem, a modified slanted-edge method using nonuniform fast Fourier transform (NUFFT) for camera MTF measurement is proposed. Theoretical simulations for images with noise at a different nonuniform sampling rate of ESF are performed using the proposed modified slanted-edge method. It is shown that the proposed method successfully eliminates the error due to the nonuniform sampling of the ESF. An experimental setup for camera MTF measurement is established to verify the accuracy of the proposed method. The experiment results show that under different nonuniform sampling rates of ESF, the proposed modified slanted-edge method has improved accuracy for the camera MTF measurement compared to the ISO 12233 slanted-edge method. (C) 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) |
关键词 | Modulation Transfer Function Numerical Approximation And Analysis Nonuniform Sampling |
DOI | 10.1117/1.OE.57.1.014103 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000424272600036 |
EI入藏号 | 20180304652521 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/30803 |
专题 | 先进光学仪器研究室 |
作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian, Shaanxi, Peoples R China; 2.Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing, Peoples R China; 3.Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Opt Engn, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Duan, Yaxuan,Xu, Songbo,Yuan, Suochao,et al. Modified slanted-edge method for camera modulation transfer function measurement using nonuniform fast Fourier transform technique[J]. OPTICAL ENGINEERING,2018,57(1). |
APA | Duan, Yaxuan.,Xu, Songbo.,Yuan, Suochao.,Chen, Yongquan.,Li, Hongguang.,...&Gao, Limin.(2018).Modified slanted-edge method for camera modulation transfer function measurement using nonuniform fast Fourier transform technique.OPTICAL ENGINEERING,57(1). |
MLA | Duan, Yaxuan,et al."Modified slanted-edge method for camera modulation transfer function measurement using nonuniform fast Fourier transform technique".OPTICAL ENGINEERING 57.1(2018). |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Modified slanted-edg(2570KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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