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Berkeley Lab paves the way for real-time ptychographic data streaming
https://phys.org/news/2018-06-berkeley-lab-paves-real-time-ptychographic.html
Reconstructing ptychographic datasets, however, is no trivial matter; the process involves solving a difficult phase-retrieval problem, calibrating optical elements and dealing with experimental outliers and "noise." Enter SHARP (scalable heterogeneous adaptive real-time ptychography), an algorithmic framework and computer software that enables the reconstruction of millions of phases of ptychographic image data per second. Developed at Berkeley Lab through an international collaboration and rolled out in 2016, SHARP has had a demonstrable impact on productivity for scientists working at the ALS and other light sources across the Department of Energy complex.
Now an inter-government agency funded collaboration of scientists from Berkeley Lab's DOE-funded Center for Advanced Mathematics for Energy Research Applications (CAMERA), the ALS and STROBE, the National Science Foundation's Science and Technology Center, has yielded another first-of-its-kind advance for ptychographic imaging: a software/algorithmic pipeline that enables real-time streaming of ptychographic image data during a beamline experiment, providing throughput, compression and resolution as well as rapid feedback to the user while the experiment is still running.