Document Detail

Real-time digital holographic microscopy using the graphic processing unit.
MedLine Citation:
PMID:  18679449     Owner:  NLM     Status:  MEDLINE    
Digital holographic microscopy (DHM) is a well-known powerful method allowing both the amplitude and phase of a specimen to be simultaneously observed. In order to obtain a reconstructed image from a hologram, numerous calculations for the Fresnel diffraction are required. The Fresnel diffraction can be accelerated by the FFT (Fast Fourier Transform) algorithm. However, real-time reconstruction from a hologram is difficult even if we use a recent central processing unit (CPU) to calculate the Fresnel diffraction by the FFT algorithm. In this paper, we describe a real-time DHM system using a graphic processing unit (GPU) with many stream processors, which allows use as a highly parallel processor. The computational speed of the Fresnel diffraction using the GPU is faster than that of recent CPUs. The real-time DHM system can obtain reconstructed images from holograms whose size is 512 x 512 grids in 24 frames per second.
Tomoyoshi Shimobaba; Yoshikuni Sato; Junya Miura; Mai Takenouchi; Tomoyoshi Ito
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Optics express     Volume:  16     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-08-05     Completed Date:  2008-10-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  11776-81     Citation Subset:  IM    
Graduate School of Science and Engineering, Yamagata University, Jonan 4-3-16, Yonezawa-City, Yamagata 992-8510, Japan.
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MeSH Terms
Computer Graphics / instrumentation*
Computer Systems
Equipment Design
Equipment Failure Analysis
Holography / instrumentation*
Microscopy / instrumentation*
Signal Processing, Computer-Assisted / instrumentation*
Video Recording / instrumentation*

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