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X-ray reflectivity (XRR) is widely used for thin-film structure analysis, and XRR data analysis involves minimizing the difference between an XRR curve calculated from model parameters describing the thin-film structure. This analysis takes…

Disordered Systems and Neural Networks · Physics 2022-03-31 Kook Tae Kim , Dong Ryeol Lee

Spectroscopic data, particularly diffraction data, contain detailed crystal and microstructure information and thus are crucial for materials discovery. Powder X-ray diffraction (XRD) patterns are greatly effective in identifying crystals.…

Materials Science · Physics 2025-02-18 Bin Cao , Yang Liu , Zinan Zheng , Ruifeng Tan , Jia Li , Tong-yi Zhang

Machine learning has emerged as a powerful tool in materials discovery, enabling the rapid design of novel materials with tailored properties for countless applications, including in the context of energy and sustainability. To ensure the…

Radiative transfer simulation is an important tool that allows us to generate synthetic images of various astrophysical objects. In the case of complex three-dimensional geometries, a Monte Carlo-based method that simulates photon packages…

Instrumentation and Methods for Astrophysics · Physics 2021-01-27 A. Krieger , S. Wolf

The extreme multi-label classification~(XMC) task involves learning a classifier that can predict from a large label set the most relevant subset of labels for a data instance. While deep neural networks~(DNNs) have demonstrated remarkable…

Machine Learning · Computer Science 2024-07-09 Ken Nishida , Kojiro Machi , Kazuma Onishi , Katsuhiko Hayashi , Hidetaka Kamigaito

X-ray security screening is in widespread use to maintain transportation security against a wide range of potential threat profiles. Of particular interest is the recent focus on the use of automated screening approaches, including the…

Computer Vision and Pattern Recognition · Computer Science 2019-11-20 Neelanjan Bhowmik , Yona Falinie A. Gaus , Samet Akcay , Jack W. Barker , Toby P. Breckon

Diffuse soft X-ray line emission is commonly used to trace the thermal and chemical properties of the hot interstellar medium, as well as its content, in nearby galaxies. Although resonant line scattering complicates the interpretation of…

Astrophysics of Galaxies · Physics 2018-07-25 Yang Chen , Q. Daniel Wang , Gao-Yuan Zhang , Shuinai Zhang , Li Ji

Early results in using convolutional neural networks (CNNs) on x-rays to diagnose disease have been promising, but it has not yet been shown that models trained on x-rays from one hospital or one group of hospitals will work equally well at…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 John R. Zech , Marcus A. Badgeley , Manway Liu , Anthony B. Costa , Joseph J. Titano , Eric K. Oermann

Developing effective visual inspection models remains challenging due to the scarcity of defect data. While image generation models have been used to synthesize defect images, producing highly realistic defects remains difficult. We propose…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Jaewoo Song , Daemin Park , Kanghyun Baek , Sangyub Lee , Jooyoung Choi , Eunji Kim , Sungroh Yoon

The security infrastructure is ill-equipped to detect and deter the smuggling of non-explosive devices that enable terror attacks such as those recently perpetrated in western Europe. The detection of so-called "small metallic threats"…

Computer Vision and Pattern Recognition · Computer Science 2016-09-12 Nicolas Jaccard , Thomas W. Rogers , Edward J. Morton , Lewis D. Griffin

Nondestructive testing (NDT) is widely applied to defect identification of turbine components during manufacturing and operation. Operational efficiency is key for gas turbine OEM (Original Equipment Manufacturers). Automating the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-10 Andrea Panizza , Szymon Tomasz Stefanek , Stefano Melacci , Giacomo Veneri , Marco Gori

Large liquid xenon detectors aiming for dark matter direct detection will soon become viable tools also for investigating neutrino physics. Information on the effects of nuclear structure in neutrino-nucleus scattering can be important in…

Nuclear Theory · Physics 2018-04-25 Pekka Pirinen , Jouni Suhonen , Emanuel Ydrefors

X-ray scattering patterns from emerging single particle experiments have commonly many missing or contaminated pixels. This complicates different analyses including projections on Fourier or other basis functions (for noise suppression,…

Data Analysis, Statistics and Probability · Physics 2014-11-19 Aliakbar Jafarpour

High-energy (>20keV) X-ray photon detection at high quantum yield, high spatial resolution and short response time has long been an important area of study in physics. Scintillation is a prevalent method but limited in various ways.…

Instrumentation and Detectors · Physics 2020-09-02 Eldred Lee , Michael R. James , Kaitlin M. Anagnost , Zhehui Wang , Eric R. Fossum , Jifeng Liu

Despite the notable accomplishments of deep object detection models, a major challenge that persists is the requirement for extensive amounts of training data. The process of procuring such real-world data is a laborious undertaking, which…

Computer Vision and Pattern Recognition · Computer Science 2023-06-19 Roy Voetman , Maya Aghaei , Klaas Dijkstra

Cone-beam computed tomography (CBCT) has become a vital imaging technique in various medical fields but scatter artifacts are a major limitation in CBCT scanning. This challenge is exacerbated by the use of large flat panel 2D detectors.…

Signal Processing · Electrical Eng. & Systems 2024-05-24 Harshit Agrawal , Ari Hietanen , Simo Särkkä

Purpose: To explore best-practice approaches for generating synthetic chest X-ray images and augmenting medical imaging datasets to optimize the performance of deep learning models in downstream tasks like classification and segmentation.…

In recent years, the underwater image formation model has found extensive use in the generation of synthetic underwater data. Although many approaches focus on scenes primarily affected by discoloration, they often overlook the model's…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Vasiliki Ismiroglou , Malte Pedersen , Stefan H. Bengtson , Andreas Aakerberg , Thomas B. Moeslund

X-ray bright quasars might be used to trace dust in the circumgalactic and intergalactic medium through the phenomenon of X-ray scattering, which is observed around Galactic objects whose light passes through a sufficient column of…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Lia Corrales

We discuss multivariate Monte Carlo methods appropriate for X-ray dispersive spectrometers. Dispersive spectrometers have many advantages for high resolution spectroscopy in the X-ray band. Analysis of data from these instruments is…

Astrophysics · Physics 2007-05-23 J. R. Peterson , J. G. Jernigan , S. M. Kahn
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