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Magnetic Resonance Imaging allows high resolution data acquisition with the downside of motion sensitivity due to relatively long acquisition times. Even during the acquisition of a single 2D slice, motion can severely corrupt the image.…

Numerical Analysis · Mathematics 2024-04-12 Mathias S. Feinler , Bernadette N. Hahn

Human pose estimation is an important topic in computer vision with many applications including gesture and activity recognition. However, pose estimation from image is challenging due to appearance variations, occlusions, clutter…

Computer Vision and Pattern Recognition · Computer Science 2018-08-07 Lipeng Ke , Ming-Ching Chang , Honggang Qi , Siwei Lyu

This study explored the potential of gait analysis as a tool for assessing post-injury complications, e.g., infection, malunion, or hardware irritation, in patients with lower extremity fractures. The research focused on the proficiency of…

Machine Learning · Computer Science 2023-09-29 Mostafa Rezapour , Rachel B. Seymour , Stephen H. Sims , Madhav A. Karunakar , Nahir Habet , Metin Nafi Gurcan

Recently, human pose estimation mainly focuses on how to design a more effective and better deep network structure as human features extractor, and most designed feature extraction networks only introduce the position of each anatomical…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Zhangjian Ji , Zilong Wang , Ming Zhang , Yapeng Chen , Yuhua Qian

Several pathologies can alter the way people walk, i.e. their gait. Gait analysis can therefore be used to detect impairments and help diagnose illnesses and assess patient recovery. Using vision-based systems, diagnoses could be done at…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Pedro Albuquerque , Joao Machado , Tanmay Tulsidas Verlekar , Luis Ducla Soares , Paulo Lobato Correia

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

Knee injuries are frequent, varied and often require the patient to undergo intensive rehabilitation for several months. Treatment protocols usually contemplate some recurrent measurements in order to assess progress, such as goniometry.…

Computer Vision and Pattern Recognition · Computer Science 2018-07-20 João Bernardino , Luís Filipe Teixeira , Hugo Sereno Ferreira

Existing marker-less motion capture methods often assume known backgrounds, static cameras, and sequence specific motion priors, which narrows its application scenarios. Here we propose a fully automatic method that given multi-view video,…

Computer Vision and Pattern Recognition · Computer Science 2018-05-01 Yinghao Huang , Federica Bogo , Christoph Lassner , Angjoo Kanazawa , Peter V. Gehler , Ijaz Akhter , Michael J. Black

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

Assessing the quality of movements for post-stroke patients during the rehabilitation phase is vital given that there is no standard stroke rehabilitation plan for all the patients. In fact, it depends basically on the patient's functional…

Signal Processing · Electrical Eng. & Systems 2023-01-02 Asma Bensalah , Alicia Fornés , Cristina Carmona-Duarte , Josep Lladós

Motion tracking systems based on optical sensors typically often suffer from issues, such as poor lighting conditions, occlusion, limited coverage, and may raise privacy concerns. More recently, radio frequency (RF)-based approaches using…

Computer Vision and Pattern Recognition · Computer Science 2022-01-13 Chong Tang , Wenda Li , Shelly Vishwakarma , Fangzhan Shi , Simon Julier , Kevin Chetty

Prosthetic legs play a pivotal role in clinical rehabilitation, allowing individuals with lower-limb amputations the ability to regain mobility and improve their quality of life. Gait analysis is fundamental for optimizing prosthesis design…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Xiangyu Yin , Boyuan Yang , Weichen Liu , Qiyao Xue , Abrar Alamri , Goeran Fiedler , Wei Gao

Head pose estimation and tracking is useful in variety of medical applications. With the advent of RGBD cameras like Kinect, it has become feasible to do markerless tracking by estimating the head pose directly from the point clouds. One…

Computer Vision and Pattern Recognition · Computer Science 2018-07-11 Omer Rajput , Nils Gessert , Martin Gromniak , Lars Matthäus , Alexander Schlaefer

In recent years the NHS has been having increased difficulty seeing all low-risk patients, this includes but not limited to suspected osteoarthritis (OA) patients. To help address the increased waiting lists and shortages of staff, we…

Computer Vision and Pattern Recognition · Computer Science 2023-04-27 Kai Armstrong , Lei Zhang , Yan Wen , Alexander P. Willmott , Paul Lee , Xujioing Ye

Numerous methods for human activity recognition have been proposed in the past two decades. Many of these methods are based on sparse representation, which describes the whole video content by a set of local features. Trajectories, being…

Computer Vision and Pattern Recognition · Computer Science 2019-05-15 Pejman Habashi , Boubakeur Boufama , Imran Shafiq Ahmad

In general, human pose estimation methods are categorized into two approaches according to their architectures: regression (i.e., heatmap-free) and heatmap-based methods. The former one directly estimates precise coordinates of each…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Jonghyun Kim , Bosang Kim , Hyotae Lee , Jungpyo Kim , Wonhyeok Im , Lanying Jin , Dowoo Kwon , Jungho Lee

Commonly used human motion capture systems require intrusive attachment of markers that are visually tracked with multiple cameras. In this work we present an efficient and inexpensive solution to markerless motion capture using only a few…

Computer Vision and Pattern Recognition · Computer Science 2016-05-27 Alireza Shafaei , James J. Little

Gait-based person identification from videos captured at surveillance sites using Computer Vision-based techniques is quite challenging since these walking sequences are usually corrupted with occlusion, and a complete cycle of gait is not…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Abhishek Paul , Manav Mukesh Jain , Jinesh Jain , Pratik Chattopadhyay

We propose a new method for object pose estimation without CAD models. The previous feature-matching-based method OnePose has shown promising results under a one-shot setting which eliminates the need for CAD models or object-specific…

Computer Vision and Pattern Recognition · Computer Science 2023-01-19 Xingyi He , Jiaming Sun , Yuang Wang , Di Huang , Hujun Bao , Xiaowei Zhou

Contactless hand pose estimation requires sensors that provide precise spatial information and low computational complexity for real-time processing. Unlike vision-based systems, radar offers lighting independence and direct motion…

Signal Processing · Electrical Eng. & Systems 2024-06-21 Johanna Bräunig , Vanessa Wirth , Marc Stamminger , Ingrid Ullmann , Martin Vossiek