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Related papers: Synchronic coronal hole mapping using multi-instru…

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We report on the merging between the southern polar coronal hole and an adjacent coronal dimming induced by a coronal mass ejection on 2022 March 18, resulting in the merged region persisting for at least 72 hrs. We use remote sensing data…

Solar and Stellar Astrophysics · Physics 2023-06-28 Nawin Ngampoopun , David M. Long , Deborah Baker , Lucie M. Green , Stephanie L. Yardley , Alexander W. James , Andy S. H. To

Previous deep learning efforts have focused on improving the performance of Pulmonary Embolism(PE) diagnosis from Computed Tomography (CT) scans using Convolutional Neural Networks (CNN). However, the features from CT scans alone are not…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Santosh Sanjeev , Salwa K. Al Khatib , Mai A. Shaaban , Ibrahim Almakky , Vijay Ram Papineni , Mohammad Yaqub

Accurate prediction of cardiovascular diseases remains imperative for early diagnosis and intervention, necessitating robust and precise predictive models. Recently, there has been a growing interest in multi-modal learning for uncovering…

Computer Vision and Pattern Recognition · Computer Science 2024-11-12 Francesco Girlanda , Olga Demler , Bjoern Menze , Neda Davoudi

Existing universal lesion detection (ULD) methods utilize compute-intensive anchor-based architectures which rely on predefined anchor boxes, resulting in unsatisfactory detection performance, especially in small and mid-sized lesions.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Manu Sheoran , Meghal Dani , Monika Sharma , Lovekesh Vig

Many scientists use coronal hole (CH) detections to infer open magnetic flux. Detection techniques differ in the areas that they assign as open, and may obtain different values for the open magnetic flux. We characterize the uncertainties…

Dynamic scattering and imaging with coherent, ultrafast, extreme ultraviolet (EUV) light sources can resolve charge, phonon and spin processes on their intrinsic length and time scales. However, full field coherent diffraction imaging…

Convolutional neural networks (CNN) have demonstrated their ability to segment 2D cardiac ultrasound images. However, despite recent successes according to which the intra-observer variability on end-diastole and end-systole images has been…

Image and Video Processing · Electrical Eng. & Systems 2022-05-09 Nathan Painchaud , Nicolas Duchateau , Olivier Bernard , Pierre-Marc Jodoin

Cardiac magnetic resonance imaging (MRI) is a pivotal tool for assessing cardiac function. Precise segmentation of cardiac structures is imperative for accurate cardiac functional evaluation. This paper introduces a semi-supervised model…

Image and Video Processing · Electrical Eng. & Systems 2024-05-24 Hejun Huang , Zuguo Chen , Yi Huang , Guangqiang Luo , Chaoyang Chen , Youzhi Song

Fully-convolutional neural networks have achieved superior performance in a variety of image segmentation tasks. However, their training requires laborious manual annotation of large datasets, as well as acceleration by parallel processors…

Neural and Evolutionary Computing · Computer Science 2018-11-29 Blaine Rister , Darvin Yi , Kaushik Shivakumar , Tomomi Nobashi , Daniel L. Rubin

The Multi-slit Solar Explorer (MUSE) is a proposed mission aimed at understanding the physical mechanisms driving the heating of the solar corona and the eruptions that are at the foundation of space weather. MUSE contains two instruments,…

Instrumentation and Methods for Astrophysics · Physics 2020-01-08 Bart De Pontieu , Juan Martinez-Sykora , Paola Testa , Amy Winebarger , Adrian Daw , Viggo Hansteen , Mark C. M. Cheung , Patrick Antolin , the MUSE team

Advances in image registration and machine learning have recently enabled volumetric analysis of postmortem brain tissue from conventional photographs of coronal slabs, which are routinely collected in brain banks and neuropathology…

Clinical imaging is routinely used for cochlear implant surgical planning yet lacks the resolution and contrast necessary to visualize the fine intracochlear structures critical for individualized intervention. To address this limitation,…

The identification of large numbers of localised transient EUV brightenings, with small spatial scales, in the quiet-Sun corona has been one of the key early results from Solar Orbiter. However, much is still unknown about these events.…

Joint deconvolution and segmentation of ultrasound images is a challenging problem in medical imaging. By adopting a hierarchical Bayesian model, we propose an accelerated Markov chain Monte Carlo scheme where the tissue reflectivity…

Image and Video Processing · Electrical Eng. & Systems 2020-01-23 Corbineau Marie-Caroline , Kouamé Denis , Chouzenoux Emilie , Tourneret Jean-Yves , Pesquet Jean-Christophe

The \textit{Sun Watcher using Active Pixel system detector and Image Processing}(SWAP) on board the \textit{PRoject for OnBoard Autonomy\todash 2} (PROBA\todash 2) spacecraft provides images of the solar corona in EUV channel centered at…

Solar and Stellar Astrophysics · Physics 2012-06-11 K. Chandrashekhar , S. Krishna Prasad , D. Banerjee , B. Ravindra , Daniel B. Seaton

Global magnetic field models use as input synoptic data, which usually show "aging effects" as the longitudinal 360{\deg} information is not obtained simultaneously. Especially during times of increased solar activity, the evolution of the…

Solar and Stellar Astrophysics · Physics 2021-10-04 Stephan G. Heinemann , Manuela Temmer , Stefan J. Hofmeister , Aleksandar Stojakovic , Laurent Gizon , Dan Yang

Ultrasound curve angle (UCA) measurement provides a radiation-free and reliable evaluation for scoliosis based on ultrasound imaging. However, degraded image quality, especially in difficult-to-image patients, can prevent clinical experts…

Image and Video Processing · Electrical Eng. & Systems 2024-09-26 Yihao Zhou , Zixun Huang , Timothy Tin-Yan Lee , Chonglin Wu , Kelly Ka-Lee Lai , De Yang , Alec Lik-hang Hung , Jack Chun-Yiu Cheng , Tsz-Ping Lam , Yong-ping Zheng

We present the results from analyzing the physical and morphological properties of 154 dimmings (transient coronal holes) and the associated flares and coronal mass ejections (CMEs). Each dimming in our 2013 catalog was processed with the…

Solar and Stellar Astrophysics · Physics 2017-05-31 Larisza D. Krista , Alysha A. Reinard

A previous work of ours found the best agreement between EUV light curves observed in an active region core (with evidence of super-hot plasma) and those predicted from a model with a random combination of many pulse-heated strands with a…

Solar and Stellar Astrophysics · Physics 2016-01-27 E. Tajfirouze , F. Reale , G. Peres , P. Testa

A three-dimensional (3D) reconstruction of the 2007, May 20 partial-halo Coronal Mass Ejection (CME) has been made using STEREO/EUVI and STEREO/COR1 coronagraphic images. The trajectory and kinematics of the erupting filament have been…

Solar and Stellar Astrophysics · Physics 2015-06-19 Roberto Susino , Alessandro Bemporad , Sergio Dolei
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