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Surface profiling of object using varifocal lens with image contrast

  • Special section: Regular Paper
  • The 11th International Conference on Optics-Photonics Design & Fabrication (ODF’18), Hiroshima, Japan
  • Published:
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Abstract

The measurement of automated and fast focusing on the improvement of speed and accuracy is an important issue in industrial inspection and biomedical microscopy. In this study, we developed a novel optical imaging system in which varifocal lenses are used to characterize the 3D surface topography of samples. The performance of the proposed system was evaluated using twelve focusing algorithms. Experimental results demonstrate the feasibility and effectiveness of the proposed system in the near real-time construction of multi-focus fusion images with large depth of field from which to derive 3D surface profiles.

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References

  1. Huang, W., Jing, Z.: Evaluation of focus measures in multi-focus image fusion. Pattern Recogn. Lett. 28(4), 493–500 (2007)

    Article  Google Scholar 

  2. Casutt, S., Bueeler, M., Blum, M., Aschwanden, M.: Fast and precise continuous focusing with focus tunable lenses. Proc. SPIE 8982, 89820Y (2014)

    Article  ADS  Google Scholar 

  3. Wang, W., Chang, F.: A multi-focus image fusion method based on Laplacian pyramid. J. Comput. 6(12), 2559–2566 (2011)

    Article  Google Scholar 

  4. Weng, C.J., Lu, B.L., Cheng, P.Y., Hwang, C.H., Chen, C.Y.: Measuring the thickness of transparent objects using a confocal displacement sensor. In: IEEE International Instrumentation and Measurement Technology Conference Proceedings, pp. 978–1001, 2017

  5. Fan, C.L., Weng, C.J., Lin, Y.H., Cheng, P.Y.: Surface profiling measurement using varifocal lens based on focus stacking. In: IEEE International Instrumentation and Measurement Technology Conference Proceedings , pp. 1614–1618, 2018

  6. Ye, Z.J., Hwang, C.H., Cheng, P.Y., Chen, C.Y., Weng, C.J.: Rapid displacement sensor based on fitting scan. In: IEEE International Instrumentation and Measurement Technology Conference Proceedings, pp. 1–6, 2016

  7. Weng, C.J., Lan, T.H., Hwang, C.H., Liu, D.R., Chen, C.Y., Cheng, P.Y., Hsu, K.Y.: Confocal displacement sensor with varifocal lens. In: IEEE International Instrumentation and Measurement Technology Conference Proceedings, pp. 2434–2439, 2015

  8. Mateos-Pérez, J.M., Redondo, R., Nava, R., Valdiviezo, J.C., Cristobal, G., Escalante-Ramirez, B.: Comparative evaluation of autofocus algorithms for a real-time system for automatic detection of Mycobacterium tuberculosis. Cytometry Part A 81(3), 213–221 (2012)

    Article  Google Scholar 

  9. Li, S., Kwok, J., Wang, Y.: Combination of images with diverse focuses using the spatial frequency. Inf. Fusion 2(3), 169–176 (2001)

    Article  Google Scholar 

  10. Li, S., Kwok, J.T., Wang, Y.: Multifocus image fusion using artificial neural networks. Pattern Recogn. Lett. 23(8), 985–997 (2002)

    Article  MATH  Google Scholar 

  11. Blum, M., Bueeler, M., Graetzel, C., Aschwanden, M.: Compact optical design solutions using focus tunable lenses. Proc. SPIE 8167, 81670W (2011)

    Article  ADS  Google Scholar 

  12. Liu, S., Hua, H.: Extended depth-of-field microscopic imaging with a variable focus microscope objective. Opt. Express 19(1), 353–362 (2011)

    Article  ADS  MathSciNet  Google Scholar 

  13. Jabbour, J.M., Malik, B.H., Olsovsky, C., Cuenca, R., Cheng, S., Jo, J.A., Maitland, K.C.: Optical axial scanning in confocal microscopy using an electrically tunable lens. Biomed. Opt. Express 5(2), 645–652 (2014)

    Article  Google Scholar 

  14. Fahrbach, F.O., Voigt, F.F., Schmid, B., Helmchen, F., Huisken, J.: Rapid 3D light-sheet microscopy with a tunable lens. Opt. Express 21(18), 21010–21026 (2013)

    Article  ADS  Google Scholar 

  15. Subbarao, M., Choi, T., Nikzad, A.: Focusing techniques. Proc. SPIE Int. Soc. Opt. Eng. 1823, 163–174 (1992)

    ADS  Google Scholar 

  16. Nayar, S.K., Nakagawa, Y.: Shape from focus. IEEE Trans. Pattern Anal. Mach. Intell. 16(8), 824–831 (1994)

    Article  Google Scholar 

  17. Yazdanfar, S., Kenny, K.B., Tasimi, K., Corwin, A.D., Dixon, E.L., Filkins, R.J.: Simple and robust image-based autofocusing for digital microscopy. Opt. Express 16(12), 8670–8677 (2008)

    Article  ADS  Google Scholar 

  18. Popowicz, A., Radlak, K., Bernacki, K., Orlov, V.: Review of image quality measures for solar imaging. Sol. Phys. 292(12), 187–192 (2017)

    Article  ADS  Google Scholar 

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Acknowledgements

This work was sponsored in part by the Ministry of Science and Technology, Taiwan, R.O.C. under contract numbers MOST 106-2622-E-492-004-CC3 and 107-2221-E-492-024-MY3.

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Authors and Affiliations

  1. Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu, Taiwan

    Chih-Yen Chen & Chun-Jen Weng

  2. University of Kent, Canterbury, UK

    Lijuan Wang

  3. Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan

    Chen-Liang Fan & Pi-Ying Cheng

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  1. Chih-Yen Chen
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  2. Lijuan Wang
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  3. Chen-Liang Fan
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  4. Pi-Ying Cheng
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  5. Chun-Jen Weng
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Correspondence to Chun-Jen Weng.

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Chen, CY., Wang, L., Fan, CL. et al. Surface profiling of object using varifocal lens with image contrast. Opt Rev 26, 493–499 (2019). https://doi.org/10.1007/s10043-019-00539-x

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  • DOI: https://doi.org/10.1007/s10043-019-00539-x

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