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Ptycho! Image processing diffraction patternsAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Chris Richardson. What is ptychography, and why should we be interested? Imaging very small objects often involves using high energy or short wavelength beams, such as X-rays, which are difficult to focus. As a result, rather than images, experimenters often collect diffraction patterns, which record the intensity of the Fourier transform of the image. The reconstruction of the image from the diffraction pattern is non-unique, because the phase information has been lost. However by combining multiple overlapping images in real space, it is possible to obtain a further constraint, which makes image reconstruction feasible. This talk will introduce the topic, and show an example of some of the challenges of converting an existing Python script to C++ and running on a HPC . This talk is part of the RSE Seminars series. This talk is included in these lists:Note that ex-directory lists are not shown. |
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