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Using the O K-edge with some ptychography data produces masks that are inverted (maybe?) from what they should be (i.e. 1's mark active material instead of background). We need to review the various e…
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- Give access to Achim
- Insert Achim's EPIE to repository and evaluate performance.
- Comparison to DESY EPIE implementation.
- Link to Libertem: easier since this is python
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This could possibly be used to replace the transforms in COM, ptychography etc?
Benefit would be to gravitate towards common conventions in electron microscopy and beyond, also with respect to meta…
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Hi, thanks for sharing the code!
I was runing demo script "2d_ptychography_w_position_correction.py" and found some interesting path issues.
1. `ptychography.py` line 224 `h5py_path = f'{save_p…
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Currently the best way to correct large position errors in ptychography is to do low-resolution reconstruction using cropped data. However, sometimes reconstruction may fail if diffraction patterns ar…
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It would be good to add functionality for cluster processing of converted 4DSTEM data (ADF, ptychography, CoM, warping etc). My view is that this should be done separately from the conversion as there…
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The reconstruction algorithm RAAR (= Relaxed Averaged Alternating Reflection) used in Jena for coherent diffraction imaging exist in python and in pytorch. Pytorch is beneficial when using GPUs, since…
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In near-field ptychography, I have the possibility to measure the intensity of the beam without the sample, so I can obtain the probe amplitude by the square root operation.
Given that in the Fouri…
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As side product of the Ptychography 4.0 project, it is possible that we develop a Conda package for Aplaka, because we want to use Python and Alpaka together.
It can be useful, because it allows a …