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浏览/检索结果: 共7条，第1-7条 帮助 限定条件 专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Phase extraction from two randomly phase shifted interferograms by combining advanced principal component analysis and Lissajous ellipse fitting 期刊论文 Optics and Lasers in Engineering, 2020, 卷号: 132, 页码: 13 作者:  Y. Zhang,X. B. Tian and R. G. Liang 收藏  |  浏览/下载：2/0  |  提交时间：2021/07/06 Two-step random phase retrieval approach based on Gram-Schmidt orthonormalization and Lissajous ellipse fitting method 期刊论文 Optics Express, 2019, 卷号: 27, 期号: 3, 页码: 2575-2588 作者:  Y.Zhang;  X.B.Tian;  R.G.Liang 收藏  |  浏览/下载：2/0  |  提交时间：2020/08/24 principal component analysis,shifting interferometry,iterative,algorithm,extraction,interferograms,vibration,Optics   Accurate and fast two-step phase shifting algorithm based on principle component analysis and Lissajous ellipse fitting with random phase shift and no pre-filtering 期刊论文 Optics Express, 2019, 卷号: 27, 期号: 14, 页码: 20047-20063 作者:  Y.Zhang;  X.B.Tian;  R.G.Liang 收藏  |  浏览/下载：2/0  |  提交时间：2020/08/24 wave-front reconstruction,iterative algorithm,interferometry,extraction,interferograms,Optics   Random three-step phase retrieval approach based on difference map GramSchmidt orthonormalization and Lissajous ellipse fitting method 期刊论文 Optics and Lasers in Engineering, 2019, 卷号: 121, 页码: 11-17 作者:  Y.Zhang;  X.Tian;  R.Liang 收藏  |  浏览/下载：0/0  |  提交时间：2020/08/24 Geometry,Interferometry,Phase measurement,Phase shift   Random two-step phase shifting interferometry based on Lissajous ellipse fitting and least squares technologies 期刊论文 Optics Express, 2018, 卷号: 26, 期号: 12, 页码: 15059-15072 作者:  Zhang, Y.;  Tian, X. B.;  Liang, R. G. 收藏  |  浏览/下载：5/0  |  提交时间：2019/09/17 wave-front reconstruction  testing optical-surfaces  iterative  algorithm  extraction  interferograms  vibration  errors  steps  Optics   Image Processing Algorithms For Deep-Space Autonomous Optical Navigation 期刊论文 Journal of Navigation, 2013, 卷号: 66, 期号: 4 Li S.; Lu R. K.; Zhang L.; Peng Y. M. 收藏  |  浏览/下载：12/0  |  提交时间：2014/05/14 A sub-pixel extraction method for the center of the circular structure from spot array calibration target (EI CONFERENCE) 会议论文 2012 3rd International Conference on Information Technology for Manufacturing Systems, ITMS 2012, September 8, 2012 - September 9, 2012, Qingdao, China Liu Y.; Gao X.; Xu C.; Fu W.; Teng Y.; Yang H.; Zhang T. 收藏  |  浏览/下载：65/0  |  提交时间：2013/03/25 The imaging measurement system must be calibrated before application. In calibration procedure  sub-pixel center extraction is the crucial step for the final accuracy. In this paper  a new sub-pixel extraction method is proposed. Edge detection at pixel level is obtained using LOG operator  then sub-pixel edge detection is realized using the Facet model. Finally  the least squares ellipse fitting is operated on the sub-pixel edge to determine the sub-pixel center. Experiment on a series of simulated images indicates that this algorithm is able to realize the center location accuracy of 0.01-0.02 pixel  and meets the requirement of sub-pixel level. (2012) Trans Tech Publications  Switzerland.