Moving-aperture-based three-dimensional micro-measurement system

• Autorzy: Fan S. , Yu M. , Jiang G. , Wang Y. , Wang W. , Li W.

Identyfikatory

DOI

10.5277/oa180401

• Języki publikacji: EN

Abstrakty

EN

To overcome the depth-of-field limitation of an optical microscope image, a three-dimensional measurement method with a superior depth-of-field is proposed. In the proposed method, light-field information of different angles is obtained by moving the aperture and the three-dimensional scene is reconstructed by using a computational reconstruction technology. First, stereo matching of different aperture position images is performed to obtain the multi-aperture imaging deviation. The focal plane moving distance is thereby estimated. Then, the relational expression between the image coordinates and the focal plane moving distance is determined according to the image coordinates. Two dimensional coordinates of the space point are obtained by the expression coefficients. Finally, the depth coordinates are computed, and three-dimensional reconstruction of the spatial points is completed. Experiments of three-dimensional measurements of the calibration board with different angles and circuit boards are conducted. The results show that the maximum error of the distance measurement is controlled into 0.84%, and the maximum angle measurement error is controlled into 4.56%.

Słowa kluczowe

EN

optical microscopy; computational photography; three-dimensional micro-measurement; moving aperture

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2018
• Tom: Vol. 48, nr 4
• Strony: 533--547
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Fan S.

• Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China
• School of Information Science and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China

autor

Yu M.

• Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China

autor

Jiang G.

• Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China

autor

Wang Y.

• School of Information Science and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China

autor

Wang W.

• Ningbo Power Supply Company, State Grid Zhejiang Electric Power Corporation, Ningbo 315600, China

autor

Li W.

• Ningbo Power Supply Company, State Grid Zhejiang Electric Power Corporation, Ningbo 315600, China

Bibliografia

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• [3] XIAOQING XU, YAWEI WANG, YUANYUAN XU, WEIFENG JIN, Simultaneous measurement of refractive index and thickness for optically transparent object with a dual-wavelength quantitative technique, Optica Applicata 46(4), 2016, pp. 597–605.
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• [12] TIAN L., WALLER L., Quantitative differential phase contrast imaging in an LED array microscope, Optics Express 23(9), 2015, pp. 11394–11403.
• [13] GUOAN ZHENG, HORSTMEYER R., CHANGHUEI YANG, Wide-field, high-resolution Fourier ptychographic microscopy, Nature Photonics 7(9), 2013, pp. 739–745.
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• [15] WEISS M., BARET F., Using 3D point clouds derived from UAV RGB imagery to describe vineyard 3D macro-structure, Remote Sensing 9(2), 2017, p. 111.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).