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Vol. 233, Issue 5, May 2019, pp. 40-45

 

Bullet

 

Reconstruction of Digital in-line Holograms and Suppression of the Twin-image in Gabor Holography
 

Yu. D. Arapov, D. E. Ergashev, * M. E. Dvornichenko, V. G. Kamenev, and V. N. Turkin

Dukhov Automatics Research Institute, Federal State Unitary Enterprise, (VNIIA), LOS Laboratory, 22 Sushevskaya ul, Moscow 127055, Russia
Tel.: + 79670675985

* E-mail: dvornichenko_marina@mail.ru

 

Received: 30 March 2019 /Accepted: 30 April 2019 /Published: 31 May 2019

Digital Sensors and Sensor Sysstems

 

Abstract: This report deals with experimental and theoretical investigation of methods of reconstruction of images of micro particles from digital holograms. It is mainly focused on the problem of existence on reconstructed images parasitic signal known as twin-image. It was suggested and investigated two methods of elimination of this effect – individual registration of twin-image with subsequent subtraction of it and averaging of series of holograms obtained from several individual channels. It was provided analysis of results and comparison of these methods.

 

Keywords: Digital holography, In-line, Twin-image, Convolution, FFT, Modelling holograms.

 

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