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Proceedings Paper

Resolution enhancement and autofocusing in digital holographic microscopy by using structured illumination
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Paper Abstract

In this paper we show how resolution enhancement and autofocusing in digital holographic microscopy (DHM) is obtained by using structured illumination. The structured illumination is generated by a spatial light modulator, and enables to project fringes of different orientations and phase shift without mechanical movement. The combination of the structured illumination and DHM improves the resolution of phase and amplitude imaging. Furthermore, the image plane is numerically determined by searching for the minimal deviation between the reconstructed images carried by different diffraction orders of the structured illuminations. The method can be applied to both amplitude and phase object.

Paper Details

Date Published: 13 May 2013
PDF: 7 pages
Proc. SPIE 8788, Optical Measurement Systems for Industrial Inspection VIII, 878809 (13 May 2013); doi: 10.1117/12.2020298
Show Author Affiliations
Peng Gao, Univ. Stuttgart (Germany)
Giancarlo Pedrini, Univ. Stuttgart (Germany)
Wolfgang Osten, Univ. Stuttgart (Germany)


Published in SPIE Proceedings Vol. 8788:
Optical Measurement Systems for Industrial Inspection VIII
Peter H. Lehmann; Wolfgang Osten; Armando Albertazzi, Editor(s)

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