Modified slanted-edge method for camera modulation transfer function measurement using nonuniform fast Fourier transform technique

doi:10.1117/1.OE.57.1.014103

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 先进光学仪器研究室

	Modified slanted-edge method for camera modulation transfer function measurement using nonuniform fast Fourier transform technique
	Duan, Yaxuan 1,2; Xu, Songbo 1; Yuan, Suochao1,3 ; Chen, Yongquan 1; Li, Hongguang 1; Da, Zhengshang1 ; Gao, Limin1
刊名	OPTICAL ENGINEERING
	2018
卷号	57 期号:1
关键词	Modulation Transfer Function Numerical Approximation And Analysis Nonuniform Sampling
ISSN号	0091-3286
DOI	10.1117/1.OE.57.1.014103
产权排序	1
英文摘要	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)
语种	英语
WOS记录号	WOS:000424272600036
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/30803]
专题	西安光学精密机械研究所_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).