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Accurate motion estimation at high acceleration factors enables rapid motion-compensated reconstruction in Magnetic Resonance Imaging (MRI) without compromising the diagnostic image quality. In this work, we introduce an attention-aware…

Image and Video Processing · Electrical Eng. & Systems 2024-04-30 Aya Ghoul , Jiazhen Pan , Andreas Lingg , Jens Kübler , Patrick Krumm , Kerstin Hammernik , Daniel Rueckert , Sergios Gatidis , Thomas Küstner

A realistic human kinematic model that satisfies anatomical constraints is essential for human-robot interaction, biomechanics and robot-assisted rehabilitation. Modeling realistic joint constraints, however, is challenging as human arm…

Robotics · Computer Science 2025-06-25 Shafagh Keyvanian , Michelle J. Johnson , Nadia Figueroa

Three-dimensional (3D) freehand ultrasound (US) reconstruction without a tracker can be advantageous over its two-dimensional or tracked counterparts in many clinical applications. In this paper, we propose to estimate 3D spatial…

Image and Video Processing · Electrical Eng. & Systems 2023-09-06 Qi Li , Ziyi Shen , Qian Li , Dean C Barratt , Thomas Dowrick , Matthew J Clarkson , Tom Vercauteren , Yipeng Hu

In the field of human biometry, accurately estimating the volume of the whole body and its individual segments is of fundamental importance. Such measurements support a wide range of applications that include assessing health, optimizing…

Image and Video Processing · Electrical Eng. & Systems 2025-09-15 Giulia Bassani , Emilio Maoddi , Usman Asghar , Carlo Alberto Avizzano , Alessandro Filippeschi

This work aims to discuss the current landscape of kinematic analysis tools, ranging from the state-of-the-art in sports biomechanics such as inertial measurement units (IMUs) and retroreflective marker-based optical motion capture (MoCap)…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Kai Armstrong , Alexander Rodrigues , Alexander P. Willmott , Lei Zhang , Xujiong Ye

Advances in computer vision, particularly in optical image-based 3D reconstruction and feature matching, enable applications like marker-less surgical navigation and digitization of surgery. However, their development is hindered by a lack…

Computer Vision and Pattern Recognition · Computer Science 2025-01-29 Emma Most , Jonas Hein , Frédéric Giraud , Nicola A. Cavalcanti , Lukas Zingg , Baptiste Brument , Nino Louman , Fabio Carrillo , Philipp Fürnstahl , Lilian Calvet

RGBD-based real-time dynamic 3D reconstruction suffers from inaccurate inter-frame motion estimation as errors may accumulate with online tracking. This problem is even more severe for single-view-based systems due to strong occlusions.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-16 Wenbin Lin , Chengwei Zheng , Jun-Hai Yong , Feng Xu

3D hand-mesh reconstruction from RGB images facilitates many applications, including augmented reality (AR). However, this requires not only real-time speed and accurate hand pose and shape but also plausible mesh-image alignment. While…

Computer Vision and Pattern Recognition · Computer Science 2021-09-07 Xiao Tang , Tianyu Wang , Chi-Wing Fu

This paper presents a robust and efficient semi-dense visual odometry solution for RGB-D cameras. The core of our method is a 2D-3D ICP pipeline which estimates the pose of the sensor by registering the projection of a 3D semi-dense map of…

Computer Vision and Pattern Recognition · Computer Science 2017-02-09 Yi Zhou , Laurent Kneip , Hongdong Li

This paper is the first to introduce the idea of using reconfigurable intelligent surfaces (RISs) as passive devices that measure the position and orientation of certain human body parts over time. In this paper, we investigate the…

Signal Processing · Electrical Eng. & Systems 2023-07-04 Don-Roberts Emenonye , Anik Sarker , Alan T. Asbeck , Harpreet S. Dhillon , R. Michael Buehrer

4D scans of dynamic deformable human body parts help researchers have a better understanding of spatiotemporal features. However, reconstructing 4D scans based on multiple asynchronous cameras encounters two main challenges: 1) finding the…

Image and Video Processing · Electrical Eng. & Systems 2023-07-25 Farzam Tajdari , Toon Huysmans , Xinhe Yao , Jun Xu , Yu Song

We present a novel method for real-time pose and shape reconstruction of two strongly interacting hands. Our approach is the first two-hand tracking solution that combines an extensive list of favorable properties, namely it is marker-less,…

Computer Vision and Pattern Recognition · Computer Science 2021-06-16 Franziska Mueller , Micah Davis , Florian Bernard , Oleksandr Sotnychenko , Mickeal Verschoor , Miguel A. Otaduy , Dan Casas , Christian Theobalt

We propose a three-dimensional (3D) multimodal medical imaging system that combines freehand ultrasound and structured light 3D reconstruction in a single coordinate system without requiring registration. To the best of our knowledge, these…

Computer Vision and Pattern Recognition · Computer Science 2021-06-01 Jhacson Meza , Sonia H. Contreras-Ortiz , Lenny A. Romero , Andres G. Marrugo

Recent technological advances have made head-mounted displays (HMDs) smaller and untethered, fostering the vision of ubiquitous interaction with information in a digitally augmented physical world. For interacting with such devices, three…

Human-Computer Interaction · Computer Science 2023-03-29 Florian Müller

The paper proposes a novel calibration approach for the Orthoglide-type mechanisms based on observations of the manipulator leg parallelism during motions between the prespecified test postures. It employs a low-cost measuring system…

Robotics · Computer Science 2007-05-23 Anatoly Pashkevich , Damien Chablat , Philippe Wenger

This paper presents ReGlove, a system that converts low-cost commercial pneumatic rehabilitation gloves into vision-guided assistive orthoses. Chronic upper-limb impairment affects millions worldwide, yet existing assistive technologies…

Robotics · Computer Science 2026-02-02 Rosh Ho , Jian Zhang

Automated patient positioning is a crucial step in streamlining MRI workflows and enhancing patient throughput. RGB-D camera-based systems offer a promising approach to automate this process by leveraging depth information to estimate…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Eytan Kats , Kai Geißler , Jochen G. Hirsch , Stefan Heldman , Mattias P. Heinrich

Inertial measurement units have the ability to accurately record the acceleration and angular velocity of human limb segments during discrete joint movements. These movements are commonly used in exercise rehabilitation programmes following…

Human-Computer Interaction · Computer Science 2018-12-11 Antonio Bevilacqua , Bingquan Huang , Rob Argent , Brian Caulfield , Tahar Kechadi

Recent developments have created differentiable physics simulators designed for machine learning pipelines that can be accelerated on a GPU. While these can simulate biomechanical models, these opportunities have not been exploited for…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 R. James Cotton

Markerless motion capture enables the tracking of human motion without requiring physical markers or suits, offering increased flexibility and reduced costs compared to traditional systems. However, these advantages often come at the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 David Tolpin , Sefy Kagarlitsky