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Single-particle imaging with X-ray free-electron lasers depends crucially on algorithms that merge large numbers of weak diffraction patterns despite missing measurements of parameters such as particle orientations. The…

Computational Physics · Physics 2021-08-24 B. R. Mobley , K. E. Schmidt , J. P. Chen , R. A. Kirian

Image geolocalization is the task of identifying the location depicted in a photo based only on its visual information. This task is inherently challenging since many photos have only few, possibly ambiguous cues to their geolocation.…

Computer Vision and Pattern Recognition · Computer Science 2018-08-08 Paul Hongsuck Seo , Tobias Weyand , Jack Sim , Bohyung Han

Cryo-electron tomography enables 3D visualization of cells in a near native state at molecular resolution. The produced cellular tomograms contain detailed information about all macromolecular complexes, their structures, their abundances…

Quantitative Methods · Quantitative Biology 2019-04-30 Min Xu , Elitza I Tocheva , Yi-Wei Chang , Grant J Jensen , Frank Alber

Plastic pollution presents an escalating global issue, impacting health and environmental systems, with micro- and nanoplastics found across mediums from potable water to air. Traditional methods for studying these contaminants are…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Hadi Rezvani , Navid Zarrabi , Ishaan Mehta , Christopher Kolios , Hussein Ali Jaafar , Cheng-Hao Kao , Sajad Saeedi , Nariman Yousefi

In recent years, histopathology images have been increasingly used as a diagnostic tool in the medical field. The process of accurately diagnosing a biopsy sample requires significant expertise in the field, and as such can be…

Image and Video Processing · Electrical Eng. & Systems 2019-09-24 Alison K. Cheeseman , Hamid Tizhoosh , Edward R. Vrscay

The limits of molecular dynamics (MD) simulations of macromolecules are steadily pushed forward by the relentless developments of computer architectures and algorithms. This explosion in the number and extent (in size and time) of MD…

There is a high demand for fully automated methods for the analysis of primary particle size distributions of agglomerates on transmission electron microscopy images. Therefore, a novel method, based on the utilization of artificial neural…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Max Frei , Frank Einar Kruis

Although defocus can be used to generate partial phase contrast in transmission electron microscope images, cryo-electron microscopy (cryo-EM) can be further improved by the development of phase plates which increase contrast by applying a…

Quantitative Methods · Quantitative Biology 2024-03-14 Jeremy J. Axelrod , Jessie T. Zhang , Petar N. Petrov , Robert M. Glaeser , Holger Mueller

Coupling a multi-capillary column (MCC) with an ion mobility (IM) spectrometer (IMS) opened a multitude of new application areas for gas analysis, especially in a medical context, as volatile organic compounds (VOCs) in exhaled breath can…

Other Computer Science · Computer Science 2014-05-22 Dominik Kopczynski , Sven Rahmann

Numerical simulations of plasma flows are crucial for advancing our understanding of microscopic processes that drive the global plasma dynamics in fusion devices, space, and astrophysical systems. Identifying and classifying particle…

Computational Physics · Physics 2020-10-13 Stefano Markidis , Ivy Peng , Artur Podobas , Itthinat Jongsuebchoke , Gabriel Bengtsson , Pawel Herman

Deep learning has become an extremely effective tool for image classification and image restoration problems. Here, we apply deep learning to microscopy, and demonstrate how neural networks can exploit the chromatic dependence of the…

Optics · Physics 2018-07-05 Eran Hershko* , Lucien E. Weiss* , Tomer Michaeli , Yoav Shechtman

Mass spectrometry imaging (MSI) enables label-free visualization of molecular distributions across tissue samples but generates large and complex datasets that require effective peak picking to reduce data size while preserving meaningful…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Philipp Weigand , Nikolas Ebert , Shad A. Mohammed , Denis Abu Sammour , Carsten Hopf , Oliver Wasenmüller

A common approach to model complex chemistry in numerical simulations is via post-processing of existing magneto-hydrodynamic simulations, relying on computing the evolution of chemistry over the dynamic history of a subset of particles…

Solar and Stellar Astrophysics · Physics 2021-07-07 Simón Ferrada-Chamorro , Alessandro Lupi , Stefano Bovino

Deep learning model trained by imbalanced data may not work satisfactorily since it could be determined by major classes and thus may ignore the classes with small amount of data. In this paper, we apply deep learning based imbalanced data…

Image and Video Processing · Electrical Eng. & Systems 2019-08-28 Ziqian Luo , Xiangrui Zeng , Zhipeng Bao , Min Xu

In mammography, the efficacy of computer-aided detection methods depends, in part, on the robust localisation of micro-calcifications ($\mu$C). Currently, the most effective methods are based on three steps: 1) detection of individual…

Computer Vision and Pattern Recognition · Computer Science 2016-10-10 Zhi Lu , Gustavo Carneiro , Neeraj Dhungel , Andrew P. Bradley

The analysis of microcirculation images has the potential to reveal early signs of life-threatening diseases like sepsis. Quantifying the capillary density and the capillary distribution in microcirculation images can be used as a…

Computer Vision and Pattern Recognition · Computer Science 2022-05-12 Maged Abdalla Helmy Mohamed Abdou , Trung Tuyen Truong , Eric Jul , Paulo Ferreira

Exoplanet detections and characterizations via direct imaging require high contrast and high angular resolution. These requirements typically require (i) cutting-edge instrumental facilities, (ii) optimized differential imaging to introduce…

Instrumentation and Methods for Astrophysics · Physics 2023-11-01 Jules Dallant , Maud Langlois , Olivier Flasseur , Éric Thiébaut

Complex plasmas consist of microparticles embedded in a low-temperature plasma containing ions, electrons and neutral particles. The microparticles form a dynamical system that can be used to study a multitude of effects on the level of the…

Computer Vision and Pattern Recognition · Computer Science 2019-12-11 Daniel P. Mohr , Peter Huber , Mierk Schwabe , Christina A. Knapek

Nanoparticle superlattices consisting of ordered arrangements of nanoparticles exhibit unique optical, magnetic, and electronic properties arising from nanoparticle characteristics as well as their collective behaviors. Understanding how…

Materials Science · Physics 2025-01-09 Aanish Paruchuri , Carl Thrasher , A. J. Hart , Robert Macfarlane , Arthi Jayaraman

Minerals, metals, and plastics are indispensable for a functioning modern society. Yet, their supply is limited causing a need for optimizing ore extraction and recuperation from recyclable materials.Typically, those processes must be…

Computer Vision and Pattern Recognition · Computer Science 2023-12-15 Karol Gotkowski , Shuvam Gupta , Jose R. A. Godinho , Camila G. S. Tochtrop , Klaus H. Maier-Hein , Fabian Isensee
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