Digital holographic imaging for diffuse-reflection metal surface with strong feature

Ye Zhao; Zhe Wang; Zhuqing Jiang

doi:10.1117/12.2247554

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19 October 2016 Digital holographic imaging for diffuse-reflection metal surface with strong feature

Ye Zhao; Zhe Wang; Zhuqing Jiang

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Proceedings Volume 10155, Optical Measurement Technology and Instrumentation; 101553V (2016) https://doi.org/10.1117/12.2247554
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

A method of digital holographic imaging for strong diffuse-reflective metal surface is presented. For a strong diffuse-reflection object, the DC term of Fourier spectrum of the hologram is removed by subtracting the patterns the reference beam and object beam from the hologram, which effectively eliminates the influence of the zero-order of the spectrum image on actual information. In view of the more extensive area of Fourier-spectrum region of the hologram for a diffuse reflection object, the spectrum filtering windows is taken as a half area of the Fourier-spectrum region. According the removal of the zero-order term and the use of the half area of filtering windows, the reconstruction imaging for the surface of an alloy plate is achieved, in which both amplitude and phase images are obtained, respectively.

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Ye Zhao, Zhe Wang, and Zhuqing Jiang "Digital holographic imaging for diffuse-reflection metal surface with strong feature", Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101553V (19 October 2016); https://doi.org/10.1117/12.2247554