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Intra-cardiac Echocardiography (ICE) plays a crucial role in Electrophysiology (EP) and Structural Heart Disease (SHD) interventions by providing high-resolution, real-time imaging of cardiac structures. However, existing navigation methods…

Image and Video Processing · Electrical Eng. & Systems 2025-05-14 Jaeyoung Huh , Ankur Kapoor , Young-Ho Kim

Accurate motion estimation for tracking deformable tissues in echocardiography is essential for precise cardiac function measurements. While traditional methods like block matching or optical flow struggle with intricate cardiac motion,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Md Abulkalam Azad , John Nyberg , Håvard Dalen , Bjørnar Grenne , Lasse Lovstakken , Andreas Østvik

Most thermal infrared (TIR) tracking methods are discriminative, treating the tracking problem as a classification task. However, the objective of the classifier (label prediction) is not coupled to the objective of the tracker (location…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Xin Li , Qiao Liu , Nana Fan , Zhenyu He , Hongzhi Wang

Current commercial matrix transducers for 3D DCE-US do not display side-by-side B-mode and contrast-mode images when capturing volumetric data, thus leaving the operator with no position feedback during lengthy acquisitions. The purpose of…

Image and Video Processing · Electrical Eng. & Systems 2020-11-03 Ahmed El Kaffas , Renhui Gong , Samvardhini Sridharan , Rosa Maria Silveira Sigrist , Isabelle Durot , Jürgen K. Willmann , Dimitre Hristov

Accurate and efficient tracking of surgical instruments is fundamental for Robot-Assisted Minimally Invasive Surgery. Although vision-based robot pose estimation has enabled markerless calibration without tedious physical setups, reliable…

Robotics · Computer Science 2026-03-16 Hanyang Hu , Zekai Liang , Florian Richter , Michael C. Yip

Automatic emotion recognition plays a significant role in the process of human computer interaction and the design of Internet of Things (IOT) technologies. Yet, a common problem in emotion recognition systems lies in the scarcity of…

Computer Vision and Pattern Recognition · Computer Science 2020-06-05 Kexin Feng , Theodora Chaspari

In this paper, we demonstrate a novel algorithm that uses ellipse fitting to estimate the bounding box rotation angle and size with the segmentation(mask) on the target for online and real-time visual object tracking. Our method,…

Computer Vision and Pattern Recognition · Computer Science 2019-09-13 Bao Xin Chen , John K. Tsotsos

In this thesis, we propose a pioneering work on sparse keypoints tracking across images using transformer networks. While deep learning-based keypoints matching have been widely investigated using graph neural networks - and more recently…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Oleksii Nasypanyi , Francois Rameau

Contemporary high-density mapping techniques and preoperative CT/MRI remain time and resource intensive in localizing arrhythmias. AI has been validated as a clinical decision aid in providing accurate, rapid real-time analysis of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Dorsa EPMoghaddam , Feng Gao , Drew Bernard , Kavya Sinha , Mehdi Razavi , Behnaam Aazhang

In a previous study, we presented VT-Lane, a three-step framework for real-time vehicle detection, tracking, and turn movement classification at urban intersections. In this study, we present a case study incorporating the highly accurate…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Awad Abdelhalim , Montasir Abbas , Bhavi Bharat Kotha , Alfred Wicks

Siamese deep-network trackers have received significant attention in recent years due to their real-time speed and state-of-the-art performance. However, Siamese trackers suffer from similar looking confusers, that are prevalent in aerial…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Abu Md Niamul Taufique , Andreas Savakis , Michael Braun , Daniel Kubacki , Ethan Dell , Lei Qian , Sean M. O'Rourke

Finite element analysis (FEA) forms the cornerstone of modeling cardiac biomechanics but is computationally expensive, limiting its clinical application for digital twin creation, which often requires tens to hundreds of simulations to…

Medical Physics · Physics 2025-04-29 Lei Shi , Yurui Chen , Vijay Vedula

Even for short protocols (<1 min), head movement can compromise accurate haemodynamic modelling of cerebral CT perfusion (CTP) imaging in acute stroke. Frame-to-frame registration is the most common form of retrospective correction but…

Flexible endoscope motion tracking and analysis in mechanical simulators have proven useful for endoscopy training. Common motion tracking methods based on electromagnetic tracker are however limited by their high cost and material…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yuelin Zhang , Kim Yan , Chun Ping Lam , Chengyu Fang , Wenxuan Xie , Yufu Qiu , Raymond Shing-Yan Tang , Shing Shin Cheng

Intraoperative fluorescent cardiac imaging enables quality control following coronary bypass grafting surgery. We can estimate local quantitative indicators, such as cardiac perfusion, by tracking local feature points. However, heart motion…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Suresh Guttikonda , Maximilian Neidhart , Johanna Sprenger , Johannes Petersen , Christian Detter , Alexander Schlaefer

Discriminative correlation filters (DCF) and siamese networks have achieved promising performance on visual tracking tasks thanks to their superior computational efficiency and reliable similarity metric learning, respectively. However, how…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Xizhe Xue , Ying Li , Xiaoyue Yin , Qiang Shen

Although the manipulating of the unmanned aerial manipulator (UAM) has been widely studied, vision-based UAM approaching, which is crucial to the subsequent manipulating, generally lacks effective design. The key to the visual UAM…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Guangze Zheng , Changhong Fu , Junjie Ye , Bowen Li , Geng Lu , Jia Pan

Automated assessment of surgical skills using artificial intelligence (AI) provides trainees with instantaneous feedback. After bimanual tool motions are captured, derived kinematic metrics are reliable predictors of performance in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Shekhar Madhav Khairnar , Huu Phong Nguyen , Alexis Desir , Carla Holcomb , Daniel J. Scott , Ganesh Sankaranarayanan

Accurate neuronavigation is essential for generating the intended effect with transcranial magnetic stimulation (TMS). Precise coil placement also directly influences stimulation efficacy. Traditional neuronavigation systems often rely on…

Human-Computer Interaction · Computer Science 2026-01-29 Xuyi Hu , Ke Ma , Siwei Liu , Per Ola Kristensson , Stephan Goetz

Percutaneous coronary intervention (PCI) is typically performed with image guidance using X-ray angiograms in which coronary arteries are opacified with X-ray opaque contrast agents. Interventional cardiologists typically navigate…

Image and Video Processing · Electrical Eng. & Systems 2020-01-14 Hua Ma , Ihor Smal , Joost Daemen , Theo van Walsum