GPU accelerated holographic microscopy for the inspection of quickly moving fluids for applications in pharmaceutical manufacturing

Nazim Dugan; John J. Healy; James P. Ryle; Bryan M. Hennelly

doi:10.1117/12.2051789

1 May 2014 GPU accelerated holographic microscopy for the inspection of quickly moving fluids for applications in pharmaceutical manufacturing

Nazim Dugan, John J. Healy, James P. Ryle, Bryan M. Hennelly

Author Affiliations +

Proceedings Volume 9131, Optical Modelling and Design III; 91311A (2014) https://doi.org/10.1117/12.2051789
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

Digital holographic microscopy is suitable for the detection of microbial particles in a rapidly flowing fluid since in this technique the focusing can be carried out as post-processing of a single captured image. This image, known as a digital hologram, contains the full complex wave front information emanating from the object which forms an interference pattern with a known reference beam. Post-processing is computationally intense and it constitutes a bottleneck for real time inspection of fast moving scenes. In the current work, GPU computation is used to accelerate the post-processing of the holographic images captured by digital holographic microscopy. Efficiency and reliability of a pre-processing step in order to eliminate low information content holographic images is also investigated.

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Nazim Dugan, John J. Healy, James P. Ryle, and Bryan M. Hennelly "GPU accelerated holographic microscopy for the inspection of quickly moving fluids for applications in pharmaceutical manufacturing", Proc. SPIE 9131, Optical Modelling and Design III, 91311A (1 May 2014); https://doi.org/10.1117/12.2051789

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