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Proceedings Paper

Generalized phase-shifting color holography
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Paper Abstract

To measure object wave in digital holography, the phase-shifting technique is popular by changing the phase of the reference wave. A piezo actuator (PZT) is usually used as a device to shift the phase. In a case to obtain the phase information of color object with multiple wavelengths, four-step phase-shifting algorithm with quarter wavelength shift is not convenient since the amount of the phase shift is difference according to each wavelength. In this paper, the generalized four-step phase-shifting method is proposed and experimentally verified to obtain color digital hologram using an image sensor with a Bayer pattern for capturing interference pattern shifted phase by one PZT.

Paper Details

Date Published: 21 February 2020
PDF: 6 pages
Proc. SPIE 11306, Practical Holography XXXIV: Displays, Materials, and Applications, 113060K (21 February 2020); doi: 10.1117/12.2544640
Show Author Affiliations
Minwoo Jung, Kyungpook National Univ. (Korea, Republic of)
Hosung Jeon, Kyungpook National Univ. (Korea, Republic of)
Beomjun Kim, Kyungpook National Univ. (Korea, Republic of)
Sungjin Lim, Kyungpook National Univ. (Korea, Republic of)
Joonku Hahn, Kyungpook National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 11306:
Practical Holography XXXIV: Displays, Materials, and Applications
Hans I. Bjelkhagen, Editor(s)

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