001049747 001__ 1049747
001049747 005__ 20251227204002.0
001049747 037__ $$aFZJ-2025-05531
001049747 041__ $$aEnglish
001049747 1001_ $$0P:(DE-Juel1)184644$$aBangun, Arya$$b0$$ufzj
001049747 1112_ $$aRetreat of the Institute for Advanced Simulation$$cJülich$$d2025-05-27 - 2025-05-27$$gIAS-retreat$$wGermany
001049747 245__ $$aNo more shots in the dark - Highly efficient compression basis for live ptychography
001049747 260__ $$c2025
001049747 3367_ $$033$$2EndNote$$aConference Paper
001049747 3367_ $$2BibTeX$$aINPROCEEDINGS
001049747 3367_ $$2DRIVER$$aconferenceObject
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001049747 3367_ $$0PUB:(DE-HGF)24$$2PUB:(DE-HGF)$$aPoster$$bposter$$mposter$$s1766864286_1417$$xAfter Call
001049747 520__ $$aThe field of electron microscopy (EM) will soon be a hundred years old.However, advances in aberration correction have improved transmission EM during the last two decades.Single atoms can now become visible.We can move the electron beam focus over a sample to get scanning transmission electron microscopy (STEM) data.Then, a 2D-array of scan points come in sequentially, while each scan point is a 2D diffraction image, hence are called 4D-STEM data sets.The Wigner distribution deconvolution method (WDD) allows to visualize a real-space representation of the sample.However, WDD with full images is costly and has so far been performed as a postprocessing step only.A viable alternative is data compression on the diffraction images.Various methods of dimensionality reduction have been tried.Our approach is to use the circular harmonic oscillator (CHO) basis for three reasons:(1) The CHO basis has been found to be highly efficient in compressing typical 2D diffraction images while suppressing statistical noise.(2) The factorizable property of the Cartesian representation of a CHO basis allows for CHO basis transformations using a two-step scheme of efficient matrix-matrix multiplications with SGEMM.(3) The WDD procedure can skip two Fourier transforms due to an analytical property of the CHO basis.Combining the three aspects of acceleration LiberTEM-live can visualize 4D-STEM data using CHO-WDD in milliseconds on a GPU, even on incomplete scans.This allows EM operators to finally see what they measure while the scan is still running.
001049747 536__ $$0G:(DE-HGF)POF4-5111$$a5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511)$$cPOF4-511$$fPOF IV$$x0
001049747 7001_ $$0P:(DE-Juel1)156619$$aBaumeister, Paul F.$$b1$$eCorresponding author$$ufzj
001049747 7001_ $$0P:(DE-Juel1)174151$$aClausen, Alexander$$b2$$ufzj
001049747 7001_ $$0P:(DE-Juel1)171370$$aWeber, Dieter$$b3$$ufzj
001049747 8564_ $$uhttps://juser.fz-juelich.de/record/1049747/files/20250527_PFB_Poster_submitted.pdf$$yRestricted
001049747 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)184644$$aForschungszentrum Jülich$$b0$$kFZJ
001049747 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)156619$$aForschungszentrum Jülich$$b1$$kFZJ
001049747 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)174151$$aForschungszentrum Jülich$$b2$$kFZJ
001049747 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)171370$$aForschungszentrum Jülich$$b3$$kFZJ
001049747 9131_ $$0G:(DE-HGF)POF4-511$$1G:(DE-HGF)POF4-510$$2G:(DE-HGF)POF4-500$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-5111$$aDE-HGF$$bKey Technologies$$lEngineering Digital Futures – Supercomputing, Data Management and Information Security for Knowledge and Action$$vEnabling Computational- & Data-Intensive Science and Engineering$$x0
001049747 9141_ $$y2025
001049747 920__ $$lyes
001049747 9201_ $$0I:(DE-Juel1)JSC-20090406$$kJSC$$lJülich Supercomputing Center$$x0
001049747 9201_ $$0I:(DE-Juel1)IAS-8-20210421$$kIAS-8$$lDatenanalyse und Maschinenlernen$$x1
001049747 9201_ $$0I:(DE-Juel1)ER-C-1-20170209$$kER-C-1$$lPhysik Nanoskaliger Systeme$$x2
001049747 9201_ $$0I:(DE-Juel1)ER-C-20211020$$kER-C$$lER-C 2.0$$x3
001049747 980__ $$aposter
001049747 980__ $$aEDITORS
001049747 980__ $$aVDBINPRINT
001049747 980__ $$aI:(DE-Juel1)JSC-20090406
001049747 980__ $$aI:(DE-Juel1)IAS-8-20210421
001049747 980__ $$aI:(DE-Juel1)ER-C-1-20170209
001049747 980__ $$aI:(DE-Juel1)ER-C-20211020
001049747 980__ $$aUNRESTRICTED