Numerical reconstruction in in-line digital holography by translation of CCD position and gradient operator method

2011 ◽  
Vol 284 (12) ◽  
pp. 2767-2770 ◽  
Author(s):  
C. Quan ◽  
W. Chen ◽  
C.J. Tay
Keyword(s):  
Digital Holography ◽  
Operator Method ◽  
Gradient Operator ◽  
Numerical Reconstruction

Development of a Parallel Fast Fourier Transform-Based Algorithm for Digital Hologram Reconstruction

2014 ◽  
Vol 1040 ◽  
pp. 949-953 ◽  
Author(s):  
T.R. Vuyets ◽  
Vladislav A. Ovchinnikov
Keyword(s):  
Digital Holography ◽  
Graphics Processing Unit ◽  
Processing Unit ◽  
Time Analysis ◽  
Digital Hologram ◽  
Central Processing ◽  
Numerical Reconstruction ◽  
Real Time Analysis ◽  
Observation Method ◽  
Graphics Processing

Digital holography is a comparatively new observation method for micron-sized particles. It is based on numerical reconstruction of recorded interference fringe. Calculation processes for reconstruction are both time- and memory-intensive. The aim of this study was to develop a faster, more efficient algorithm for digital hologram reconstruction. To this purpose Central Processing Unit (CPU) and Graphics Processing Unit (GPU) programming were implemented. For the problem solving the algorithms’ run-time for both configurations was measured. The results showed that the algorithm using a GPU board is faster and more suitable for reconstruction processes. Thus, it makes possible the accomplishment of real-time analysis.

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