English
Related papers

Related papers: Cosmic Ray Detection and Rejection for CSST

200 papers

Recently, deep Convolutional Neural Networks (CNNs) have revolutionized image super-resolution (SR), dramatically outperforming past methods for enhancing image resolution. They could be a boon for the many scientific fields that involve…

Image and Video Processing · Electrical Eng. & Systems 2021-10-28 Andrew Geiss , Joseph C. Hardin

For segmented telescopes, achieving fine co-focus adjustment is essential for realizing co-phase adjustment and maintenance, which involves adjusting the millimeter-scale piston between segments to fall within the capture range of the…

Instrumentation and Methods for Astrophysics · Physics 2024-04-12 Kunyan Wang , Yichun Dai , Bin Wang , Xu Tan , Dehua Yang , Zhenyu Jin

Radiation therapy (RT) requires precise dose delivery over multiple fractions, with CT fundamental for treatment planning due to its electron density information. Repeated CT acquisitions impose radiation exposure and logistical burdens,…

We discuss the extent to which photometric measurements alone can be used to identify Type Ia supernovae (SNIa) and to determine redshift and other parameters of interest for cosmological studies. We fit the light curve data of the type…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Yan Gong , Asantha Cooray , Xuelei Chen

Colonoscopy video frames might be contaminated by bright spots with unsaturated values known as specular reflection. Detection and removal of such reflections could enhance the quality of colonoscopy images and facilitate diagnosis…

Computer Vision and Pattern Recognition · Computer Science 2018-02-26 Mojtaba Akbari , Majid Mohrekesh , S. M. Reza Soroushmehr , Nader Karimi , Shadrokh Samavi , Kayvan Najarian

AliCPT-1 is the first Chinese CMB experiment aiming for high precision measurement of Cosmic Microwave Background B-mode polarization. The telescope, currently under deployment in Tibet, will observe in two frequency bands centered at 90…

Convolutional Neural Networks (CNNs) have recently been applied to cosmological fields -- weak lensing mass maps and galaxy maps. However, cosmological maps differ in several ways from the vast majority of images that CNNs have been tested…

Cosmology and Nongalactic Astrophysics · Physics 2024-03-05 Kunhao Zhong , Marco Gatti , Bhuvnesh Jain

Popular methods in compressed sensing (CS) are dependent on deep learning (DL), where large amounts of data are used to train non-linear reconstruction models. However, ensuring generalisability over and access to multiple datasets is…

Image and Video Processing · Electrical Eng. & Systems 2024-09-02 Marlon Bran Lorenzana , Feng Liu , Shekhar S. Chandra

Cosmic ray astronomy attempts to identify and study the sources of ultrahigh energy cosmic rays. It is unique in its reliance on charged particles as the information carriers. While no discrete source of ultrahigh energy cosmic rays has…

Astrophysics · Physics 2010-01-15 Paul Sommers , Stefan Westerhoff

A recently proposed novel technique for the detection of cosmic rays with arrays of Imaging Atmospheric Cherenkov Telescopes is applied to data from the High Energy Stereoscopic System (H.E.S.S.). The method relies on the ground based…

Astrophysics · Physics 2008-11-26 HESS Collaboration , F. A. Aharonian

Visual inspection of solar modules is an important monitoring facility in photovoltaic power plants. Since a single measurement of fast CMOS sensors is limited in spatial resolution and often not sufficient to reliably detect small defects,…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Mathis Hoffmann , Thomas Köhler , Bernd Doll , Frank Schebesch , Florian Talkenberg , Ian Marius Peters , Christoph J. Brabec , Andreas Maier , Vincent Christlein

Modern object detectors take advantage of rectangular bounding boxes as a conventional way to represent objects. When it comes to fisheye images, rectangular boxes involve more background noise rather than semantic information. Although…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Xihan Wang , Xi Xu , Yu Gao , Yi Yang , Yufeng Yue , Mengyin Fu

We present a new approach to measuring cosmic shear: the one-component kinematic lensing (KL) method. This technique provides a simplified implementation of KL that reduces shape noise in weak lensing (WL) by combining kinematic information…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-25 Yu-Hsiu Huang , Elisabeth Krause , Tim Eifler , Gary Bernstein , Jiachuan Xu , Eric Huff , Pranjal R. S

The measurement of large scale anisotropies in cosmic ray arrival directions is generally performed through harmonic analyses of the right ascension distribution as a function of energy. These measurements are challenging due to the small…

Instrumentation and Methods for Astrophysics · Physics 2013-07-29 Olivier Deligny , Francesco Salamida

The generation-defining Vera C. Rubin Observatory will make state-of-the-art measurements of both the static and transient universe through its Legacy Survey for Space and Time (LSST). With such capabilities, it is immensely challenging to…

Cosmic ray (CR) feedback plays a vital role in shaping the formation and evolution of galaxies through their interaction with magnetohydrodynamic waves. In the CR self-confinement scenario, the waves are generated by the CR gyro-resonant…

High Energy Astrophysical Phenomena · Physics 2025-07-23 Xiaochen Sun , Xue-Ning Bai , Xihui Zhao

Deriving atmospheric parameters of a large sample of stars is of vital importance to understand the formation and evolution of the Milky Way. Photometric surveys, especially those with near-ultraviolet filters, can offer accurate…

Solar and Stellar Astrophysics · Physics 2024-01-15 Ruifeng Shi , Yang Huang , Xinyi Li , Huawei Zhang

Extra-solar planets direct imaging is now a reality with the deployment and commissioning of the first generation of specialized ground-based instruments (GPI, SPHERE, P1640 and SCExAO). These systems allow of planets $ 10 ^ 7 $ times…

Instrumentation and Methods for Astrophysics · Physics 2015-09-16 Sandrine J. Thomas , Ruslan Belikov , Eduardo Bendek

We estimate the effective area available for cosmic-ray detection with a network of smartphones under optimistic conditions. To measure cosmic-ray air showers with a minimally-adequate precision and a detection area similar to existing…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 Michael Unger , Glennys Farrar

We introduce an interactive image segmentation and visualization framework for identifying, inspecting, and editing tiny objects (just a few pixels wide) in large multi-megapixel high-dynamic-range (HDR) images. Detecting cosmic rays (CRs)…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 Chengyuan Xu , Boning Dong , Noah Stier , Curtis McCully , D. Andrew Howell , Pradeep Sen , Tobias Höllerer
‹ Prev 1 8 9 10 Next ›