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Knee osteoarthritis (OA) is the most common joint disorder and a leading cause of disability. Diagnosing OA severity typically requires expert assessment of X-ray images and is commonly based on the Kellgren-Lawrence grading system, a…

Image and Video Processing · Electrical Eng. & Systems 2024-12-11 Nicharee Srikijkasemwat , Soumya Snigdha Kundu , Fuping Wu , Bartlomiej W. Papiez

This paper introduces a 3D parallel robot with three identical five-degree-of-freedom chains connected to a circular brace end-effector, aimed to serve as an assistive device for patients with cervical spondylosis. The inverse kinematics of…

Robotics · Computer Science 2025-03-18 Jingzong Zhou , Yuhan Zhu , Xiaobin Zhang , Sunil Agrawal , Konstantinos Karydis

Over 4,000 exoplanets have been identified and thousands of candidates are to be confirmed. The relations between the characteristics of these planetary systems and the kinematics, Galactic components, and ages of their host stars have yet…

Earth and Planetary Astrophysics · Physics 2021-03-17 Di-Chang Chen , Ji-Wei Xie , Ji-Lin Zhou , Su-Bo Dong , Chao Liu , Hai-Feng Wang , Mao-Sheng Xiang , Yang Huang , Ali Luo , Zheng Zheng

For leg exoskeletons to operate effectively in real-world environments, they must be able to perceive and understand the terrain around them. However, unlike other legged robots, exoskeletons face specific constraints on where depth sensors…

A recently developed Projection-based Digital Image Correlation (P-DVC) method is here extended to 4D (space and time) displacement field measurement and mechanical identification based on a single radiograph per loading step instead of…

Computational Physics · Physics 2019-05-23 Clément Jailin , Ante Buljac , Amine Bouterf , François Hild , Stéphane Roux

This study presents a non-invasive method using thermal imaging to estimate heart and respiration rates in calves, avoiding the stress from wearables. Using Kernelised Correlation Filters (KCF) for movement tracking and advanced signal…

Signal Processing · Electrical Eng. & Systems 2024-05-21 Ehsan Sadeghi , Zinan Guo , Alessandro Chiumento , Paul Havinga

We present an initial examination of a novel approach to accurately position a patient during head and neck intensity modulated radiotherapy (IMRT). Position-based visual-servoing of a radio-transparent soft robot is used to control the…

Robotics · Computer Science 2017-02-08 Olalekan Ogunmolu , Xuejun Gu , Steve Jiang , Nicholas Gans

In recent years, Neural Radiance Fields (NeRF) have emerged as a powerful tool for 3D reconstruction and novel view synthesis. However, the computational cost of NeRF rendering and degradation in quality due to the presence of artifacts…

Robotics · Computer Science 2024-08-20 Juyeop Han , Lukas Lao Beyer , Guilherme V. Cavalheiro , Sertac Karaman

Clinical trial studies indicate benefit of watch-and-wait (WW) surveillance for patients with rectal cancer showing a complete or near clinical response (CR) directly after treatment (restaging). However, there are no objectively accurate…

Tech neck, a growing musculoskeletal concern caused by prolonged poor posture during device use, has significant health implications. This study investigates the relationship between head posture and muscular activity in the upper trapezius…

Human-Computer Interaction · Computer Science 2025-03-18 Bhawana Chhaglani , Alan Seefeldt

There is a growing research interest towards the use of wireless IMU sensors to assess disability, monitor progress and provide feedback to patients on range of motion and movement performance during upper body rehabilitation. The quality…

Signal Processing · Electrical Eng. & Systems 2020-11-02 Miloš Ajčević , Manuela Deodato , Luigi Murena , Aleksandar Miladinović , Susanna Mezzarobba , Agostino Accardo

This paper concerns the fully automatic direct in vivo measurement of active and passive dynamic skeletal muscle states using ultrasound imaging. Despite the long standing medical need (myopathies, neuropathies, pain, injury, ageing),…

Computer Vision and Pattern Recognition · Computer Science 2017-06-30 Ryan J. Cunningham , Peter J. Harding , Ian D. Loram

Cervical cancer is highly preventable, yet persistent barriers to screening limit progress toward elimination goals. Speculum-free devices that integrate imaging and sampling could improve access, particularly in low-resource settings, but…

This paper presents a method for automatic segmentation, localization, and identification of vertebrae in arbitrary 3D CT images. Many previous works do not perform the three tasks simultaneously even though requiring a priori knowledge of…

Image and Video Processing · Electrical Eng. & Systems 2020-10-01 Naoto Masuzawa , Yoshiro Kitamura , Keigo Nakamura , Satoshi Iizuka , Edgar Simo-Serra

Background: Upper-limb weakness and tremor (4--12 Hz) limit activities of daily living (ADL) and reduce adherence to home rehabilitation. Objective: To assess technical feasibility and clinician-relevant signals of a sensor-fused wearable…

Signal Processing · Electrical Eng. & Systems 2025-10-28 Thanyanee Srichaisak , Arissa Ieochai , Aueaphum Aueawattthanaphisut

This paper proposes an approach estimating a gait abnormality index based on skeletal information provided by a depth camera. Differently from related works where the extraction of hand-crafted features is required to describe gait…

Computer Vision and Pattern Recognition · Computer Science 2019-08-21 Trong Nguyen Nguyen , Huu Hung Huynh , Jean Meunier

Physical exercise is an essential component of rehabilitation programs that improve quality of life and reduce mortality and re-hospitalization rates. In AI-driven virtual rehabilitation programs, patients complete their exercises…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Ali Abedi , Paritosh Bisht , Riddhi Chatterjee , Rachit Agrawal , Vyom Sharma , Dinesh Babu Jayagopi , Shehroz S. Khan

This letter presents a novel approach to extract reliable dense and long-range motion trajectories of articulated human in a video sequence. Compared with existing approaches that emphasize temporal consistency of each tracked point, we…

Computer Vision and Pattern Recognition · Computer Science 2016-03-30 Yuanyuan Wu , Xiaohai He , Byeongkeun Kang , Haiying Song , Truong Q. Nguyen

Flexion is the significant third-order weak gravitational lensing effect responsible for the weakly skewed and arc-like appearance of lensed galaxies. Here we demonstrate how flexion measurements can be used to measure galaxy halo density…

Astrophysics · Physics 2009-11-11 D. J. Bacon , D. M. Goldberg , B. T. P. Rowe , A. N. Taylor

We introduce a teleoperation system that integrates a 5 DOF actuated neck, designed to replicate natural human head movements and perception. By enabling behaviors like peeking or tilting, the system provides operators with a more intuitive…

Robotics · Computer Science 2024-11-04 Bipasha Sen , Michelle Wang , Nandini Thakur , Aditya Agarwal , Pulkit Agrawal
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