Abstract
A precise zoom magnification is important for semiconductor industry and biomedical research. A novel measurement method is demonstrated for optical zoom magnification measurement in this paper. The magnification is obtained by pattern correction between barcode image formed by optical zoom and reference image generated by an ideal optical model. Measurement accuracy which is better than 0.06% has been achieved for optical zoom magnification. Compared with traditional concept, the measurement results are only dependent on two line edges. The barcode correlation method can achieve higher accuracy and better robustness by using the information over the whole field of view.
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References
Freeman D. Measurement of microscope magnification[J]. Applied Optics, 1964, 3(9): 1005–1008.
Zhong Zhiqiang, Ding Jianping, Jin Zhou et al. Self-focusing hidden barcode[J]. Applied Optics, 2002, 41(2): 308–311.
Marom Emanuel, Sasa Kresic-Juric, Bergstein Leonard. Analysis of speckle noise in bar-code scanning systems[J]. J Opt Soc Am A, 2001, 18(4): 888–901.
David Tsi, Emanuel Marom, Joseph Katz et al. System analysis of CCD-based barcode readers[J]. Applied Optics, 1993, 32(19): 3504–3512.
Stamos Ioannis, Liu Lingyun, Chen Chao et al. Integrating automated range registration with multiview geometry for the photorealistic modeling of large-scale scenes[J]. International Journal of Computer Vision, 2008, 78(2/3): 237–260.
Banno A, Masuda T, Oishi T et al. Flying laser range sensor for large-scale site-modeling and its applications in Bayon digital archival project[J]. International Journal of Computer Vision, 2008, 78(2/3): 207–222.
Lin Phenlan, Huang Poying. Fusion methods based on dynamic-segmented morphological wavelet or cut and paste for multifocus images[J]. Signal Processing, 2008, 88(6): 1511–1527.
Hou Jianhua. Study on Key Techniques of Multi Leaf Collimator Radiotherapy System[D]. Dalian University of Technology, Dalian, China, 2006 (in Chinese).
Zou Yan. Research on Error-Resilient Techniques of Information Intercepting and Processing[D]. Fudan University, Shanghai, China, 2006 (in Chinese).
Zhou Ping. Features Learning and Real-time Detection of Natural Objects Based on Machine Vision[D]. Zhejiang University, Hangzhou, China, 2006 (in Chinese).
Zhong Baojiang. Research on Algorithms for Planar Contour Processing[D]. Nanjing University of Aeronautics and Astronautics, Nanjing, China, 2006 (in Chinese).
Kim B J, Song J S, Kim J T et al. Determination of small angular displacement by Moiré fringes of matched radialparallel gratings[J]. Applied Optics, 1997, 36(13): 2848–2855.
Kai Engelhardt, Peter Seitz. High-resolution optical position encoder with large mounting tolerances[J]. Applied Optics, 1997, 36(13): 2912–2916.
William E Palser. A wide-angle linear-output horizon sensor optical system[J]. Applied Optics, 1964, 3(1): 63–69.
Kai Engelhardt, Peter Seitz. Absolute high-resolution optical position encoder[J]. Applied Optics, 1996, 35(1): 201–208.
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ZENG Zhengdong, born in 1964, male, doctorate student.
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Zeng, Z., Sun, C., Zheng, Y. et al. High accuracy zoom magnification measurement. Trans. Tianjin Univ. 16, 289–294 (2010). https://doi.org/10.1007/s12209-010-1316-3
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DOI: https://doi.org/10.1007/s12209-010-1316-3