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Multi-Camera Multi-Object Tracking is currently drawing attention in the computer vision field due to its superior performance in real-world applications such as video surveillance in crowded scenes or in wide spaces. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Duy M. H. Nguyen , Roberto Henschel , Bodo Rosenhahn , Daniel Sonntag , Paul Swoboda

Research on video-based eye-tracking has long explored stereo and glint-based methods, yet existing wearable eye trackers - both commercial and open-source - offer limited flexibility for algorithm development and comparative evaluation. We…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Alexander Zimmer , Yasmeen Abdrabou , Enkelejda Kasneci

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

Today, large language models (LLMs) are taught to use new tools by providing a few demonstrations of the tool's usage. Unfortunately, demonstrations are hard to acquire, and can result in undesirable biased usage if the wrong demonstration…

Computation and Language · Computer Science 2023-08-02 Cheng-Yu Hsieh , Si-An Chen , Chun-Liang Li , Yasuhisa Fujii , Alexander Ratner , Chen-Yu Lee , Ranjay Krishna , Tomas Pfister

We present a simple lightweight markerless facial performance capture framework using just a monocular video input that combines Active Appearance Models for feature tracking and prior constraints on 3D shapes into an integrated objective…

Computer Vision and Pattern Recognition · Computer Science 2019-01-17 Shridhar Ravikumar

Accurate tool tracking is essential for the success of computer-assisted intervention. Previous efforts often modeled tool trajectories rigidly, overlooking the dynamic nature of surgical procedures, especially tracking scenarios like…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Chinedu Innocent Nwoye , Nicolas Padoy

Purpose: In conventional fluoroscopy-guided interventions, the 2D projective nature of X-ray imaging limits depth perception and leads to prolonged radiation exposure. Virtual fluoroscopy, combined with spatially tracked surgical…

Image and Video Processing · Electrical Eng. & Systems 2025-05-22 Shuwei Xing , Inaara Ahmed-Fazal , Utsav Pardasani , Uditha Jayarathne , Scott Illsley , Aaron Fenster , Terry M. Peters , Elvis C. S. Chen

In this work, we tackle the challenging task of jointly tracking hand object pose and reconstructing their shapes from depth point cloud sequences in the wild, given the initial poses at frame 0. We for the first time propose a point cloud…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Jiayi Chen , Mi Yan , Jiazhao Zhang , Yinzhen Xu , Xiaolong Li , Yijia Weng , Li Yi , Shuran Song , He Wang

Visual object tracking is an active topic in the computer vision domain with applications extending over numerous fields. The main sub-tasks required to build an object tracker (e.g. object detection, feature extraction and object tracking)…

Image and Video Processing · Electrical Eng. & Systems 2021-10-20 Al-Hussein A. El-Shafie , S. E. D. Habib

Surgery monitoring in Mixed Reality (MR) environments has recently received substantial focus due to its importance in image-based decisions, skill assessment, and robot-assisted surgery. Tracking hands and articulated surgical instruments…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Ahmed Tawfik Aboukhadra , Nadia Robertini , Jameel Malik , Ahmed Elhayek , Gerd Reis , Didier Stricker

It remains a huge challenge to design effective and efficient trackers under complex scenarios, including occlusions, illumination changes and pose variations. To cope with this problem, a promising solution is to integrate the temporal…

Computer Vision and Pattern Recognition · Computer Science 2018-11-26 Peng Zhang , Shujian Yu , Jiamiao Xu , Xinge You , Xiubao Jiang , Xiao-Yuan Jing , Dacheng Tao

Neurosurgery requires exceptional precision and comprehensive preoperative planning to ensure optimal patient outcomes. Despite technological advancements, there remains a need for intuitive, accessible tools to enhance surgical preparation…

Robotics · Computer Science 2024-11-06 Hon Lung Ho , Yupeng Wang , An Wang , Long Bai , Hongliang Ren

In this paper we propose an approach for articulated tracking of multiple people in unconstrained videos. Our starting point is a model that resembles existing architectures for single-frame pose estimation but is substantially faster. We…

Computer Vision and Pattern Recognition · Computer Science 2017-05-10 Eldar Insafutdinov , Mykhaylo Andriluka , Leonid Pishchulin , Siyu Tang , Evgeny Levinkov , Bjoern Andres , Bernt Schiele

Eye-tracking technology is widely used in various application areas such as psychology, neuroscience, marketing, and human-computer interaction, as it is a valuable tool for understanding how people process information and interact with…

Human-Computer Interaction · Computer Science 2024-04-25 Enkelejda Kasneci , Hong Gao , Suleyman Ozdel , Virmarie Maquiling , Enkeleda Thaqi , Carrie Lau , Yao Rong , Gjergji Kasneci , Efe Bozkir

Sprinting is a determinant ability, especially in team sports. The kinematics of the sprint have been studied in the past using different methods specially developed considering human biomechanics and, among those methods, markerless…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Gonzalo Garrido-Lopez , Luis F. Gomez , Julian Fierrez , Aythami Morales , Ruben Tolosana , Javier Rueda , Enrique Navarro

Instrumented Timed Up and Go (TUG) analysis can support clinical and research decision-making, but robust and reproducible markerless pipelines are still limited. We present \textit{tugturn.py}, a Python-based workflow for 3D markerless TUG…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Abel Gonçalves Chinaglia , Guilherme Manna Cesar , Paulo Roberto Pereira Santiago

Precise tracking of the jaw kinematics is crucial for diagnosing various musculoskeletal and neuromuscular diseases affecting the masticatory system and for advancing rehabilitative devices such as jaw exoskeletons, a hardly explored…

Human-Computer Interaction · Computer Science 2026-01-21 Paul-Otto Müller , Sven Suppelt , Mario Kupnik , Oskar von Stryk

User simulation is a valuable methodology for evaluation in Information Retrieval (IR), enabling low-cost experimentation and counterfactual analysis. However, existing simulation frameworks are primarily code-centric libraries that require…

Information Retrieval · Computer Science 2026-04-28 Saber Zerhoudi , Adam Roegiest , Michael Granitzer

Markerless estimation of 3D Kinematics has the great potential to clinically diagnose and monitor movement disorders without referrals to expensive motion capture labs; however, current approaches are limited by performing multiple…

Computer Vision and Pattern Recognition · Computer Science 2023-01-16 Marian Bittner , Wei-Tse Yang , Xucong Zhang , Ajay Seth , Jan van Gemert , Frans C. T. van der Helm

High-fidelity pedestrian tracking in real-life conditions has been an important tool in fundamental crowd dynamics research allowing to quantify statistics of relevant observables including walking velocities, mutual distances and body…