Evaluation of refocus criteria for holographic particle imaging

Pascal Picart; Soumaya Kara Mohammed; Larbi Bouamama; Derradji Bahloul

doi:10.1117/12.2271744

26 June 2017 Evaluation of refocus criteria for holographic particle imaging

Pascal Picart, Soumaya Kara Mohammed, Larbi Bouamama, Derradji Bahloul

Proceedings Volume 10329, Optical Measurement Systems for Industrial Inspection X; 103290B (2017) https://doi.org/10.1117/12.2271744
Event: SPIE Optical Metrology, 2017, Munich, Germany

Abstract

This paper proposes a quality assessment of focusing criteria for imaging in digital off-axis holography. In literature, several refocus criteria have been proposed in the past to get the best refocus distance in digital holography. As a general rule, the best focusing plane is determined by the reconstruction distance for which the criterion function presents a maximum or a minimum. To evaluate the robustness of these criteria, a set of thirteen criteria is compared with application on both amplitude and phase images from off-axis holographic data. Experimental results lead to define general rule and to exhibit the most robust criteria for accurate and rapid refocusing in digital holography.

Citation Download Citation

Pascal Picart, Soumaya Kara Mohammed, Larbi Bouamama, and Derradji Bahloul "Evaluation of refocus criteria for holographic particle imaging", Proc. SPIE 10329, Optical Measurement Systems for Industrial Inspection X, 103290B (26 June 2017); https://doi.org/10.1117/12.2271744

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