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Quasi-real-time analysis of dynamic near field scattering data using a graphics processing unit

Giovanni Cerchiari, Fabrizio Croccolo, Frederic Cardinaux, Frank Scheffold
Department of Physics, University of Fribourg, Ch. Du Musee 3, 1700 Fribourg, Switzerland
arXiv:1209.3362 [physics.data-an] (15 Sep 2012)
@article{2012arXiv1209.3362C,

   author={Cerchiari, Giovanni and Croccolo, Fabrizio and Cardinaux, Frederic and Scheffold, Frank},

   title={Quasi-real-time analysis of dynamic near field scattering data using a graphics processing unit},

   journal={ArXiv e-prints},

   archivePrefix={"arXiv"},

   eprint={1209.3362},

   primaryClass={"physics.data-an"},

   keywords={Data Analysis, Statistics and Probability; Soft Condensed Matter; Optics},

   year={2012},

   month={sep}

}

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We present an implementation of the analysis of dynamic near field scattering (NFS) data using a graphics processing unit (GPU). We introduce an optimized data management scheme thereby limiting the number of operations required. Overall, we reduce the processing time from hours to minutes, for typical experimental conditions. Previously the limiting step in such experiments, the processing time is now comparable to the data acquisition time. Our approach is applicable to various dynamic NFS methods, including shadowgraph, Schlieren and differential dynamic microscopy.
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