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Markerless Motion Capture (MoCap) using smartphone cameras is a promising approach to making exergames more accessible and cost-effective for health and rehabilitation. Unlike traditional systems requiring specialized hardware, recent…

Human-Computer Interaction · Computer Science 2025-07-10 Mathieu Phosanarack , Laura Wallard , Sophie Lepreux , Christophe Kolski , Eugénie Avril

Object counting has achieved remarkable success on visible instances, yet state-of-the-art (SOTA) methods fail under occlusion. This failure stems from a fundamental architectural limitation where backbone networks encode occluding surfaces…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Safaeid Hossain Arib , Rabeya Akter , Abdul Monaf Chowdhury , Md Jubair Ahmed Sourov , Md Mehedi Hasan

Human motion generation is essential for fields such as animation, robotics, and virtual reality, requiring models that effectively capture motion dynamics from text descriptions. Existing approaches often rely on Contrastive Language-Image…

Computer Vision and Pattern Recognition · Computer Science 2025-05-19 Gabriel Maldonado , Armin Danesh Pazho , Ghazal Alinezhad Noghre , Vinit Katariya , Hamed Tabkhi

Motion segmentation from a single moving camera presents a significant challenge in the field of computer vision. This challenge is compounded by the unknown camera movements and the lack of depth information of the scene. While deep…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Yuxiang Huang , Yuhao Chen , John Zelek

Marker-based optical motion capture (MoCap) systems are widely used to provide ground truth (GT) trajectories for benchmarking SLAM algorithms. However, the accuracy of MoCap-based GT trajectories is mainly affected by two factors:…

Robotics · Computer Science 2025-07-18 Zichao Shu , Shitao Bei , Jicheng Dai , Lijun Li , Zetao Chen

Marker-based optical motion capture (mocap) is the "gold standard" method for acquiring accurate 3D human motion in computer vision, medicine, and graphics. The raw output of these systems are noisy and incomplete 3D points or short…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Nima Ghorbani , Michael J. Black

Occlusion in face recognition is a common yet challenging problem. While sparse representation based classification (SRC) has been shown promising performance in laboratory conditions (i.e. noiseless or random pixel corrupted), it performs…

Computer Vision and Pattern Recognition · Computer Science 2015-07-28 Yandong Wen , Weiyang Liu , Meng Yang , Yuli Fu , Youjun Xiang , Rui Hu

Although occlusion widely exists in nature and remains a fundamental challenge for pose estimation, existing heatmap-based approaches suffer serious degradation on occlusions. Their intrinsic problem is that they directly localize the…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Lingteng Qiu , Xuanye Zhang , Yanran Li , Guanbin Li , Xiaojun Wu , Zixiang Xiong , Xiaoguang Han , Shuguang Cui

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

We study a novel yet practical problem of open-corpus multi-object tracking (OCMOT), which extends the MOT into localizing, associating, and recognizing generic-category objects of both seen (base) and unseen (novel) classes, but without…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Zekun Qian , Ruize Han , Wei Feng , Junhui Hou , Linqi Song , Song Wang

Occlusion between different objects is a typical challenge in Multi-Object Tracking (MOT), which often leads to inferior tracking results due to the missing detected objects. The common practice in multi-object tracking is re-identifying…

Computer Vision and Pattern Recognition · Computer Science 2022-01-05 Qiankun Liu , Dongdong Chen , Qi Chu , Lu Yuan , Bin Liu , Lei Zhang , Nenghai Yu

Event-based object detection has recently garnered attention in the computer vision community due to the exceptional properties of event cameras, such as high dynamic range and no motion blur. However, feature asynchronism and sparsity…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Ting-Kang Yen , Igor Morawski , Shusil Dangi , Kai He , Chung-Yi Lin , Jia-Fong Yeh , Hung-Ting Su , Winston Hsu

Pedestrian detection relying on deep convolution neural networks has made significant progress. Though promising results have been achieved on standard pedestrians, the performance on heavily occluded pedestrians remains far from…

Computer Vision and Pattern Recognition · Computer Science 2019-10-16 Yanwei Pang , Jin Xie , Muhammad Haris Khan , Rao Muhammad Anwer , Fahad Shahbaz Khan , Ling Shao

Multiple object tracking is a challenging problem in computer vision due to difficulty in dealing with motion prediction, occlusion handling, and object re-identification. Many recent algorithms use motion and appearance cues to overcome…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Mohammad Hossein Nasseri , Hadi Moradi , Reshad Hosseini , Mohammadreza Babaee

The existing face recognition datasets usually lack occlusion samples, which hinders the development of face recognition. Especially during the COVID-19 coronavirus epidemic, wearing a mask has become an effective means of preventing the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-05 Baojin Huang , Zhongyuan Wang , Guangcheng Wang , Kui Jiang , Kangli Zeng , Zhen Han , Xin Tian , Yuhong Yang

Mixed reality applications often require virtual objects that are partly occluded by real objects. However, previous research and commercial products have limitations in terms of performance and efficiency. To address these challenges, we…

Computer Vision and Pattern Recognition · Computer Science 2022-03-07 Naye Ji , Fan Zhang , Haoxiang Zhang , Youbing Zhao , Dingguo Yu

Estimating the state of a deformable object is crucial for robotic manipulation, yet accurate tracking is challenging when the object is partially-occluded. To address this problem, we propose an occlusion-robust RGBD sequence tracking…

Robotics · Computer Science 2021-01-05 Cheng Chi , Dmitry Berenson

To overcome challenges in multiple object tracking task, recent algorithms use interaction cues alongside motion and appearance features. These algorithms use graph neural networks or transformers to extract interaction features that lead…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Mohammad Hossein Nasseri , Mohammadreza Babaee , Hadi Moradi , Reshad Hosseini

Marker-based Optical Motion Capture (OMC) systems and associated musculoskeletal (MSK) modelling predictions offer non-invasively obtainable insights into in vivo joint and muscle loading, aiding clinical decision-making. However, an OMC…

Machine Learning · Computer Science 2023-04-25 Abhishek Dasgupta , Rahul Sharma , Challenger Mishra , Vikranth H. Nagaraja

Occlusion is an inevitable and critical problem in unsupervised optical flow learning. Existing methods either treat occlusions equally as non-occluded regions or simply remove them to avoid incorrectness. However, the occlusion regions can…

Computer Vision and Pattern Recognition · Computer Science 2020-07-01 Kunming Luo , Chuan Wang , Nianjin Ye , Shuaicheng Liu , Jue Wang