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

被引：1
|
作者：
Besaga, Vira R. [1 ]
Saetchnikov, Anton, V [2 ]
Gerhardt, Nils C. [1 ]
Ostendorf, Andreas [2 ]
Hofmann, Martin R. [1 ]
机构：
[1] Ruhr Univ Bochum, Photon & Terahertz Technol, Univ Str 150, D-44780 Bochum, Germany
[2] Ruhr Univ Bochum, Chair Appl Laser Technol, Univ Str 150, D-44780 Bochum, Germany
来源：
OPTICAL MEASUREMENT SYSTEMS FOR INDUSTRIAL INSPECTION XI | 2019年 / 11056卷
关键词：
digital holography; near real-time operation; microscopy; aberration correction; central processing unit; MICROSCOPY; COMPENSATION; ALGORITHM;
D O I：
10.1117/12.2526112
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper we discuss a near real time digital holographic imaging algorithm achieving similar to 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 (similar to 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.
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页数：7
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