English
Related papers

Related papers: SITCoM: SiRGraF Integrated Tool for Coronal dynaMi…

200 papers

Solar rotational tomography (SRT) is an important method to reconstruct the physical parameters of the three-dimensional solar corona. Here we propose an approach to apply the filtered backprojection (FBP) algorithm to the SRT. The FBP…

Solar and Stellar Astrophysics · Physics 2020-06-03 Kyuhyoun Cho , Jongchul Chae , Ryun-Young Kwon , Su-Chan Bong , Kyung-Suk Cho

Performing X-ray computed tomography (CT) examinations with less radiation has recently received increasing interest: in medical imaging this means less (potentially harmful) radiation for the patient; in non-destructive testing of…

Medical Physics · Physics 2018-09-25 Dragos Trinca , Eduard Libin

This work aims to generate realistic anatomical deformations from static patient scans. Specifically, we present a method to generate these deformations/augmentations via deep learning driven respiratory motion simulation that provides the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-30 Donghoon Lee , Ellen Yorke , Masoud Zarepisheh , Saad Nadeem , Yu-Chi Hu

We present an improved semi-analytical model to predict density profiles of self-interacting dark matter (SIDM) halos and apply it to constrain the self-scattering cross section using SPARC galaxy rotation curves. Building on the isothermal…

Astrophysics of Galaxies · Physics 2026-01-27 Zixiang Jia , Fangzhou Jiang , Shubo Li , Ran Li , Jing Wang , Ling Zhu

We combine the semi-analytical structure formation model, SASHIMI, which predicts subhalo populations in collisionless, cold dark matter (CDM), with a parametric model that maps CDM halos to self-interacting dark matter (SIDM) halos. The…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-28 Shin'ichiro Ando , Shunichi Horigome , Ethan O. Nadler , Daneng Yang , Hai-Bo Yu

Chromosome analysis is a fundamental step in the diagnosis of genetic diseases, but the manual karyotyping workflow is time-consuming and heavily dependent on expert specialists, often requiring several days per patient. Although Deep…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Jorge L. A. Lima , Filipe R. Cordeiro

X-ray computed tomography (CT) is widely utilized in the medical, industrial, and other fields to nondestructively generate three-dimensional structural images of objects. However, CT images are often affected by various artifacts, with…

Medical Physics · Physics 2025-05-27 Yang Zou , Meili Qi , Jianhua Zhang , Difei Zhang , Shuwei Wang , Jiale Zhang , Shengkun Yao , Huaidong Jiang

Implantable Cardiac Monitor (ICM) devices are demonstrating as of today, the fastest-growing market for implantable cardiac devices. As such, they are becoming increasingly common in patients for measuring heart electrical activity. ICMs…

Signal Processing · Electrical Eng. & Systems 2023-07-17 Amnon Bleich , Antje Linnemann , Benjamin Jaidi , Björn H Diem , Tim OF Conrad

Sys-Rem (Tamuz, Mazeh & Zucker 2005) is a detrending algorithm designed to remove systematic effects in a large set of lightcurves obtained by a photometric survey. The algorithm works without any prior knowledge of the effects, as long as…

Astrophysics · Physics 2007-05-23 Tsevi Mazeh , Omer Tamuz , Shay Zucker

We present first results of a novel technique that provides, for the first time, constraints on the energy input flux at the coronal base ($r\sim\,1.025\,{\rm R}_\odot$) of the quiet-Sun at a global scale. By combining differential emission…

Solar and Stellar Astrophysics · Physics 2017-07-19 C. Mac Cormack , A. M. Vásquez , M. López Fuentes , F. A. Nuevo , E. Landi , R. A. Frazin

Sionna is a GPU-accelerated open-source library for link-level simulations based on TensorFlow. Since release v0.14 it integrates a differentiable ray tracer (RT) for the simulation of radio wave propagation. This unique feature allows for…

We present SIPGI, a spectroscopic pipeline to reduce optical/near-infrared data from slit-based spectrographs. SIPGI is a complete spectroscopic data reduction environment which retains the high level of flexibility and accuracy typical of…

Instrumentation and Methods for Astrophysics · Physics 2022-09-13 A. Gargiulo , M. Fumana , S. Bisogni , P. Franzetti , L. P. Cassarà , B. Garilli , M. Scodeggio , G. Vietri

Single object tracking in satellite videos is inherently challenged by small target, blurred background, large aspect ratio changes, and frequent visual occlusions. These constraints often cause appearance-based trackers to accumulate…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Zixiao Wen , Zhen Yang , Jiawei Li , Xiantai Xiang , Guangyao Zhou , Yuxin Hu , Yuhan Liu

Objective: Four-dimensional computed tomography (4DCT) imaging consists in reconstructing a CT acquisition into multiple phases to track internal organ and tumor motion. It is commonly used in radiotherapy treatment planning to establish…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Yi-Heng Cao , Vincent Bourbonne , François Lucia , Ulrike Schick , Julien Bert , Vincent Jaouen , Dimitris Visvikis

Perception in granular media remains challenging due to unpredictable particle dynamics. To address this challenge, we present SandWorm, a biomimetic screw-actuated robot augmented by peristaltic motion to enhance locomotion, and SWTac, a…

Robotics · Computer Science 2026-01-21 Shoujie Li , Changqing Guo , Junhao Gong , Chenxin Liang , Wenhua Ding , Wenbo Ding

Extreme wavefront correction is required for coronagraphs on future space telescopes to reach 1e-8 or better starlight suppression for the direct imaging and characterization of exoplanets in reflected light. Thus, a suite of wavefront…

We present the first public version of SImMER, an open-source Python reduction pipeline for astronomical images of point sources. Current capabilities include dark-subtraction, flat-fielding, sky-subtraction, image registration, FWHM…

Instrumentation and Methods for Astrophysics · Physics 2022-12-28 Arjun B. Savel , Lea A. Hirsch , Holden Gill , Courtney D. Dressing , David R. Ciardi

Background: Coronary artery bypass grafting (CABG) planning requires advanced spatial visualization and consideration of coronary artery depth, calcification, and pericardial adhesions. Objective: To develop and evaluate a dynamic…

Medical Physics · Physics 2025-10-02 Shuo Wang , Tong Ren , Nan Cheng , Li Zhang , Rong Wang

We consider the problem of automatically (and robustly) isolating and extracting information about waves and oscillations observed in EUV image sequences of the solar corona with a view to near real-time application to data from the…

Astrophysics · Physics 2009-11-13 Scott W. McIntosh , Bart De Pontieu , Steven Tomczyk

Pulsatile changes in retinal vascular geometry over the cardiac cycle have clinical implications for the diagnosis of ocular and systemic vascular diseases, including ischemia, coronary heart diseases, and diabetes mellitus and its…

Image and Video Processing · Electrical Eng. & Systems 2020-09-24 Pranjal Rai , Sachin Jangir , Tanvir Singh Bal
‹ Prev 1 3 4 5 6 7 10 Next ›