Search Results - "Di, Zichao Wendy"
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1
Upscaling X‐ray nanoimaging to macroscopic specimens
Published in Journal of applied crystallography (01-04-2021)“…Upscaling X‐ray nanoimaging to macroscopic specimens has the potential for providing insights across multiple length scales, but its feasibility has long been…”
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2
Imaging atomic-scale chemistry from fused multi-modal electron microscopy
Published in npj computational materials (27-01-2022)“…Efforts to map atomic-scale chemistry at low doses with minimal noise using electron microscopes are fundamentally limited by inelastic interactions. Here,…”
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3
Stochastic minibatch approach to the ptychographic iterative engine
Published in Optics express (12-08-2024)“…The ptychographic iterative engine (PIE) is a widely used algorithm that enables phase retrieval at nanometer-scale resolution over a wide range of imaging…”
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4
Unsupervised classification for region of interest in X-ray ptychography
Published in Scientific reports (13-11-2023)“…X-ray ptychography offers high-resolution imaging of large areas at a high computational cost due to the large volume of data provided. To address the cost…”
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5
Simultaneous Reconstruction and Uncertainty Quantification for Tomography
Published in ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (04-06-2023)“…Tomographic reconstruction, despite its revolutionary impact on a wide range of applications, suffers from its ill-posed nature in that there is no unique…”
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Conference Proceeding -
6
Efficient boundary‐guided scanning for high‐resolution X‐ray ptychography
Published in Journal of synchrotron radiation (01-01-2024)“…In the realm of X‐ray ptychography experiments, a considerable amount of ptychography scans are typically performed within a field of view encompassing the…”
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7
Joint reconstruction of x-ray fluorescence and transmission tomography
Published in Optics express (12-06-2017)“…X-ray fluorescence tomography is based on the detection of fluorescence x-ray photons produced following x-ray absorption while a specimen is rotated; it…”
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8
Imaging 3D chemistry at 1 nm resolution with fused multi-modal electron tomography
Published in Nature communications (26-04-2024)“…Measuring the three-dimensional (3D) distribution of chemistry in nanoscale matter is a longstanding challenge for metrological science. The inelastic…”
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9
Calibrating Sensing Drift in Tomographic Inversion
Published in 2019 IEEE International Conference on Image Processing (ICIP) (01-09-2019)“…Scanning-probe x-ray tomography is useful for imaging nanoscale structures of a sample. The image resolution, which can reach down to 10 nm by the increased…”
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Conference Proceeding -
10
Autonomous Electron Tomography Reconstruction with Machine Learning
Published 08-09-2023“…Modern electron tomography has progressed to higher resolution at lower doses by leveraging compressed sensing methods that minimize total variation (TV)…”
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11
Low-Rank Tensor Regression for X-Ray Tomography
Published 08-03-2021“…2021 IEEE International Conference on Image Processing (ICIP) Tomographic imaging is useful for revealing the internal structure of a 3D sample. Classical…”
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12
Imaging Atomic-Scale Chemistry from Fused Multi-Modal Electron Microscopy
Published 05-11-2023“…npj Comut Mater 8, 16 (2022) Efforts to map atomic-scale chemistry at low doses with minimal noise using electron microscopes are fundamentally limited by…”
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13
Imaging 3D Chemistry at 1 nm Resolution with Fused Multi-Modal Electron Tomography
Published 18-06-2024“…Nat Commun 15, 3555 (2024) Measuring the three-dimensional (3D) distribution of chemistry in nanoscale matter is a longstanding challenge for metrological…”
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14
Centroidal Voronoi tessellation based methods for optimal rain gauge location prediction
Published in Journal of hydrology (Amsterdam) (01-05-2020)“…•An automated strategy to find optimal precipitation gauge locations.•Allow users customizing the level of confidence when placing gauges.•Potentially flexible…”
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15
Low-Rank Tensor Regression for X-Ray Tomography
Published in 2021 IEEE International Conference on Image Processing (ICIP) (19-09-2021)“…Tomographic imaging is useful for revealing the internal structure of a 3D sample. Classical reconstruction methods treat the object of interest as a vector to…”
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Conference Proceeding -
16
Compact representations of structured BFGS matrices
Published in Computational optimization and applications (01-09-2021)“…For general large-scale optimization problems compact representations exist in which recursive quasi-Newton update formulas are represented as compact matrix…”
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17
Uncertainty quantification for ptychography using normalizing flows
Published 01-11-2021“…Ptychography, as an essential tool for high-resolution and nondestructive material characterization, presents a challenging large-scale nonlinear and…”
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18
Simultaneous Reconstruction and Uncertainty Quantification for Tomography
Published 29-03-2021“…Tomographic reconstruction, despite its revolutionary impact on a wide range of applications, suffers from its ill-posed nature in that there is no unique…”
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Journal Article -
19
Physics-Inspired Unsupervised Classification for Region of Interest in X-Ray Ptychography
Published 29-06-2022“…X-ray ptychography allows for large fields to be imaged at high resolution at the cost of additional computational expense due to the large volume of data…”
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20
Homomorphic data compression for real time photon correlation analysis
Published 29-07-2024“…The construction of highly coherent x-ray sources has enabled new research opportunities across the scientific landscape. The maximum raw data rate per…”
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