High-resolution angular measurement arithmetic based on pixel interpolations

doi:10.1016/j.measurement.2019.106948

CIOMP OpenIR

	High-resolution angular measurement arithmetic based on pixel interpolations
	H. Yu,X. D. Jia,Q. H. Wan,C. H. Zhao and Y. Sun
	2020
发表期刊	Measurement
ISSN	0263-2241
卷号	149 页码:5
摘要	Image angular displacement measurement devices are equipped with image sensors which identify calibration grating to digitalize angular displacement outputs. It is easier to realize high-resolution angular displacement measurement than the traditional optical moire fringe measurement method in a miniaturized device. This paper proposes a high-resolution angular displacement measurement algorithm based on pixel interpolation which was designed to resolve the measurement output error caused by low pixel resolution in the image sensor. An optical path for angular displacement measurement using a linear image sensor close to the calibration grating is proposed. We find that the effects of insufficient pixel quantity in the range of the grating marking line can be ameliorated using a high-resolution measurement algorithm based on pixel interpolation. The proposed algorithm is applied to simulated and experimental image angular displacement measurements to verify its performance. The results show that the proposed algorithm markedly improves the measurement resolution when the number of pixels in the range of marking lines detected by the image sensor is insufficient. We achieve a resolution of 0.15 '' and accuracy of 12.93 '' with circular grating diameter of 38 mm. The results presented here may enhance the theoretical basis of high-resolution angular displacement measurement. (C) 2019 Elsevier Ltd. All rights reserved.
DOI	10.1016/j.measurement.2019.106948
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64578
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	H. Yu,X. D. Jia,Q. H. Wan,C. H. Zhao and Y. Sun. High-resolution angular measurement arithmetic based on pixel interpolations[J]. Measurement,2020,149:5.
APA	H. Yu,X. D. Jia,Q. H. Wan,C. H. Zhao and Y. Sun.(2020).High-resolution angular measurement arithmetic based on pixel interpolations.Measurement,149,5.
MLA	H. Yu,X. D. Jia,Q. H. Wan,C. H. Zhao and Y. Sun."High-resolution angular measurement arithmetic based on pixel interpolations".Measurement 149(2020):5.

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
High-resolution angu（776KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载