Measurement of lens centering error based on joint transform correlator

	Measurement of lens centering error based on joint transform correlator
	Li, C.-C. and Y. Gong
	2015
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	23 期号:10 页码:2785-2793
摘要	A measurement method for the lens centering error based on double phase-encoding optical Joint Transform Correlator(JTC) was proposed for improving the measuring accuracy and determining the orientation of the centering error. On the basis of the principle of traditional JTC, two phase functions were utilized to code the reference image and the joint power spectrum, and proper filters were chosen to eliminate the effect of the sidelobe and to obtain an output with one cross-correlation peak. Then, this JTC technique after double phase-encoding was used to detect the displacement vectors between target images and reference image and to fit a circle using the displacement vectors. The vector between the center of the fitting circle and a certain point on the fitting circle is the magnified centering vector of corresponding angle, which means that the size and orientation of the centering error have been determined simultaneously. The experimental results show that the outputs keep only one speculate cross-correlation peak after double phase-encoding, which implements the displacement measurement with sub-pixel accuracy. This technology is used to measure the centering error of a lens accurately, the experimental standard deviation is 0.1 m, and the biggest absolute error is 0.3 m, which meets the requirement of centering error measurement. 2015, SCIENCE PRESS. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56046
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li, C.-C. and Y. Gong. Measurement of lens centering error based on joint transform correlator[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23(10):2785-2793.
APA	Li, C.-C. and Y. Gong.(2015).Measurement of lens centering error based on joint transform correlator.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23(10),2785-2793.
MLA	Li, C.-C. and Y. Gong."Measurement of lens centering error based on joint transform correlator".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23.10(2015):2785-2793.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
采用联合变换相关的透镜中心偏差测量.ca（430KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载