caa a22 4500 445295376 CHVBK 20180317142540.0 cr unu---uuuuu 170323e20100901xx s 000 0 eng 10.1007/s11554-009-0133-1 doi (NATIONALLICENCE)springer-10.1007/s11554-009-0133-1 Orders-of-magnitude performance increases in GPU-accelerated correlation of images from the International Space Station [Elektronische Daten] [Peter Lu, Hidekazu Oki, Catherine Frey, Gregory Chamitoff, Leroy Chiao, Edward Fincke, C. Foale, Sandra Magnus, William McArthur Jr., Daniel Tani, Peggy Whitson, Jeffrey Williams, William Meyer, Ronald Sicker, Brion Au, Mark Christiansen, Andrew Schofield, David Weitz] We implement image correlation, a fundamental component of many real-time imaging and tracking systems, on a graphics processing unit (GPU) using NVIDIA's CUDA platform. We use our code to analyze images of liquid-gas phase separation in a model colloid-polymer system, photographed in the absence of gravity aboard the International Space Station (ISS). Our GPU code is 4,000 times faster than simple MATLAB code performing the same calculation on a central processing unit (CPU), 130 times faster than simple C code, and 30 times faster than optimized C++ code using single-instruction, multiple-data (SIMD) extensions. The speed increases from these parallel algorithms enable us to analyze images downlinked from the ISS in a rapid fashion and send feedback to astronauts on orbit while the experiments are still being run. Springer-Verlag, 2009 GPU nationallicence CUDA nationallicence Autocorrelation nationallicence International Space Station nationallicence SIMD nationallicence Lu Peter Department of Physics and SEAS, Harvard University, Cambridge, MA, USA aut Oki Hidekazu Shinagawa-ku, Tokyo, Japan aut Frey Catherine ZIN Technologies, Inc., Middleburg Heights, OH, USA aut Chamitoff Gregory International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut Chiao Leroy International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut Fincke Edward International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut Foale C. International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut Magnus Sandra International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut McArthur Jr. William International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut Tani Daniel International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut Whitson Peggy International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut Williams Jeffrey International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut Meyer William NASA Glenn Research Center, Cleveland, OH, USA aut Sicker Ronald NASA Glenn Research Center, Cleveland, OH, USA aut Au Brion United Space Alliance and NASA Johnson Space Center, Houston, TX, USA aut Christiansen Mark Flowseeker LLC, San Francisco, CA, USA aut Schofield Andrew The School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK aut Weitz David Department of Physics and SEAS, Harvard University, Cambridge, MA, USA aut Journal of Real-Time Image Processing Springer-Verlag 5/3(2010-09-01), 179-193 1861-8200 5:3<179 2010 5 11554 https://doi.org/10.1007/s11554-009-0133-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11554-009-0133-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lu Peter Department of Physics and SEAS, Harvard University, Cambridge, MA, USA aut NATIONALLICENCE 700 1- Oki Hidekazu Shinagawa-ku, Tokyo, Japan aut NATIONALLICENCE 700 1- Frey Catherine ZIN Technologies, Inc., Middleburg Heights, OH, USA aut NATIONALLICENCE 700 1- Chamitoff Gregory International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- Chiao Leroy International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- Fincke Edward International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- Foale C. International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- Magnus Sandra International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- McArthur Jr William International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- Tani Daniel International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- Whitson Peggy International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- Williams Jeffrey International Space Station, Low Earth Orbit, and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- Meyer William NASA Glenn Research Center, Cleveland, OH, USA aut NATIONALLICENCE 700 1- Sicker Ronald NASA Glenn Research Center, Cleveland, OH, USA aut NATIONALLICENCE 700 1- Au Brion United Space Alliance and NASA Johnson Space Center, Houston, TX, USA aut NATIONALLICENCE 700 1- Christiansen Mark Flowseeker LLC, San Francisco, CA, USA aut NATIONALLICENCE 700 1- Schofield Andrew The School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK aut NATIONALLICENCE 700 1- Weitz David Department of Physics and SEAS, Harvard University, Cambridge, MA, USA aut NATIONALLICENCE 773 0- Journal of Real-Time Image Processing Springer-Verlag 5/3(2010-09-01), 179-193 1861-8200 5:3<179 2010 5 11554 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer