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The paper presents a reliable method using deep learning to recognize solar filaments in H-alpha full-disk solar images automatically. This method cannot only identify filaments accurately but also minimize the effects of noise points of…

Instrumentation and Methods for Astrophysics · Physics 2019-09-17 GaoFei Zhu , GangHua Lin , DongGuang Wang , Suo Liu , Xiao Yang

Filaments are omnipresent features in the solar atmosphere. Their location, properties and time evolution can provide information about changes in solar activity and assist the operational space weather forecast. Therefore, filaments have…

Context. Activity on the far side of the Sun is routinely studied through the analysis of the seismic oscillations detected on the near side using helioseismic techniques such as phase shift sensitive holography. Recently, the neural…

Solar and Stellar Astrophysics · Physics 2022-11-23 E. G. Broock , A. Asensio Ramos , T. Felipe

Fringe pattern based measurement techniques are the state-of-the-art in full-field optical metrology. They are crucial both in macroscale, e.g., fringe projection profilometry, and microscale, e.g., label-free quantitative phase microscopy.…

Image and Video Processing · Electrical Eng. & Systems 2023-10-25 Maria Cywinska , Mikolaj Rogalski , Filip Brzeski , Krzysztof Patorski , Maciej Trusiak

Image registration is used in many medical image analysis applications, such as tracking the motion of tissue in cardiac images, where cardiac kinematics can be an indicator of tissue health. Registration is a challenging problem for deep…

Image and Video Processing · Electrical Eng. & Systems 2025-06-25 Benjamin Graham

The complexity of the patterns associated with Atrial Fibrillation (AF) and the high level of noise affecting these patterns have significantly limited the current signal processing and shallow machine learning approaches to get accurate AF…

Quantitative Methods · Quantitative Biology 2019-02-18 Sajad Mousavi , Fatemeh Afghah , Abolfazl Razi , U. Rajendra Acharya

We propose FiberNet, a method to estimate \emph{in-vivo} the cardiac fiber architecture of the human atria from multiple catheter recordings of the electrical activation. Cardiac fibers play a central role in the electro-mechanical function…

Image and Video Processing · Electrical Eng. & Systems 2022-07-25 Carlos Ruiz Herrera , Thomas Grandits , Gernot Plank , Paris Perdikaris , Francisco Sahli Costabal , Simone Pezzuto

Studies on the dynamics of solar filaments have significant implications for understanding their formation, evolution, and eruption, which are of great importance for space weather warning and forecasting. The H$\alpha$ Imaging Spectrograph…

Solar and Stellar Astrophysics · Physics 2024-02-23 Z. Zheng , Q. Hao , Y. Qiu , J. Hong , C. Li , M. D. Ding

Reliable and rapid morphology measurement of cellulose nanofibrils (CNFs) with a high level of branching and entanglement is crucial for quality control, grade definition, and investigating morphology-performance relationships in various…

Biological Physics · Physics 2025-09-09 Carlos Baez , Udita Ringania , Saad Bhamla , Robert J. Moon

We use a well-known deep neural network framework, called Mask R-CNN, for identification of solar filaments in full-disk H-alpha images from Big Bear Solar Observatory (BBSO). The image data, collected from BBSO's archive, are integrated…

Solar and Stellar Astrophysics · Physics 2019-12-06 Azim Ahmadzadeh , Sushant S. Mahajan , Dustin J. Kempton , Rafal A. Angryk , Shihao Ji

Fibrillar adhesion, observed in animals like beetles, spiders, and geckos, relies on nanoscopic or microscopic fibrils to enhance surface adhesion via 'contact splitting.' This concept has inspired engineering applications across robotics,…

Machine Learning · Computer Science 2024-10-08 Mohammad Shojaeifard , Matteo Ferraresso , Alessandro Lucantonio , Mattia Bacca

Continuum robots in robot-assisted minimally invasive surgeries provide adequate access to target anatomies that are not directly reachable through small incisions. Achieving precise and reliable motion control of such snake-like…

Accurate segmentation of solar filaments in H-alpha observations is critical for determining filament chirality, a key factor in the behavior of Coronal Mass Ejections (CMEs). However, existing methods often fail to capture fine-scale…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Victor Solomon , Piet Martens , Jingyu Liu , Rafal Angryk

Atrial Fibrillation (AF), the most common sustained cardiac arrhythmia worldwide, increasingly requires accurate bi-atrial structural assessment to guide ablation strategies, particularly in persistent AF. Late gadolinium-enhanced magnetic…

Image and Video Processing · Electrical Eng. & Systems 2025-10-07 Malitha Gunawardhana , Mark L Trew , Gregory B Sands , Jichao Zhao

Deep learning has achieved tremendous success in computer vision, while medical image segmentation (MIS) remains a challenge, due to the scarcity of data annotations. Meta-learning techniques for few-shot segmentation (Meta-FSS) have been…

Computer Vision and Pattern Recognition · Computer Science 2023-03-08 Qianqian Shen , Yanan Li , Jiyong Jin , Bin Liu

Filament identification became a key step to tackling fundamental problems in various fields of Astronomy. Nevertheless, existing filament identification algorithms are critically user-dependent and require individual parametrization. In…

Instrumentation and Methods for Astrophysics · Physics 2022-07-22 D. Alina , A. Shomanov , S. Baimukhametova

In this paper, we propose an end-to-end multi-task neural network called FetalNet with an attention mechanism and stacked module for spatio-temporal fetal ultrasound scan video analysis. Fetal biometric measurement is a standard examination…

Image and Video Processing · Electrical Eng. & Systems 2022-05-04 Szymon Płotka , Tomasz Włodarczyk , Adam Klasa , Michał Lipa , Arkadiusz Sitek , Tomasz Trzciński

A reliable extraction of filament data from microscopic images is of high interest in the analysis of acto-myosin structures as early morphological markers in mechanically guided differentiation of human mesenchymal stem cells and the…

Computer Vision and Pattern Recognition · Computer Science 2015-07-15 Benjamin Eltzner , Carina Wollnik , Carsten Gottschlich , Stephan Huckemann , Florian Rehfeldt

Accurate analysis of the fibrosis stage plays very important roles in follow-up of patients with chronic hepatitis B infection. In this paper, a deep learning framework is presented for automatically liver fibrosis prediction. On contrary…

Image and Video Processing · Electrical Eng. & Systems 2020-09-11 Jiali Liu , Wenxuan Wang , Tianyao Guan , Ningbo Zhao , Xiaoguang Han , Zhen Li

Parcellation of whole-brain tractography streamlines is an important step for tract-based analysis of brain white matter microstructure. Existing fiber parcellation approaches rely on accurate registration between an atlas and the…

Image and Video Processing · Electrical Eng. & Systems 2019-12-24 Feihong Liu , Jun Feng , Geng Chen , Ye Wu , Yoonmi Hong , Pew-Thian Yap , Dinggang Shen
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