Publications

Near real-time digital holographic imaging on conventional central processing unit

Besaga, V.R. and Saetchnikov, A.V. and Gerhardt, N.C. and Ostendorf, A. and Hofmann, M.R.

PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING
Volume: 11056 Pages:
DOI: 10.1117/12.2526112
Published: 2019

Abstract
In this paper we discuss a near real time digital holographic imaging algorithm achieving 4 fps operation speed on a common central processing unit. The hologram recording is performed in the off-axis geometry in the transmission mode. The algorithm follows a standard angular spectrum method routine and utilizes experimental calibration of the optical instrument for aberration correction. The main limiting factor is related to the size of the initial hologram and its Fourier transform (57% of the total execution duration). The performance of the approach is tested on different transparent and semi-transparent samples for reconstruction of sample topography and object in-depth allocation. © SPIE. Downloading of the abstract is permitted for personal use only.

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