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Skeleton-based action recognition leverages human pose keypoints to categorize human actions, which shows superior generalization and interoperability compared to regular end-to-end action recognition. Existing solutions use RGB cameras to…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Shunyu Huang , Yunjiao Zhou , Jianfei Yang

Human action recognition in 3D skeleton sequences has attracted a lot of research attention. Recently, Long Short-Term Memory (LSTM) networks have shown promising performance in this task due to their strengths in modeling the dependencies…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Jun Liu , Gang Wang , Ling-Yu Duan , Kamila Abdiyeva , Alex C. Kot

Gait-based person re-identification (Re-ID) is valuable for safety-critical applications, and using only 3D skeleton data to extract discriminative gait features for person Re-ID is an emerging open topic. Existing methods either adopt…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Haocong Rao , Siqi Wang , Xiping Hu , Mingkui Tan , Huang Da , Jun Cheng , Bin Hu

Unsupervised word segmentation methods were applied to analyze the protein sequence. Protein sequences, such as 'MTMDKSELVQKA...', were used as input to these methods. Segmented 'protein word' sequences, such as 'MTM DKSE LVQKA', were then…

Computational Engineering, Finance, and Science · Computer Science 2015-10-29 Wang Liang , Zhao KaiYong

Zero-shot skeleton action recognition is a non-trivial task that requires robust unseen generalization with prior knowledge from only seen classes and shared semantics. Existing methods typically build the skeleton-semantics interactions by…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Yang Chen , Jingcai Guo , Song Guo , Dacheng Tao

The recent successes in applying deep learning techniques to solve standard computer vision problems has aspired researchers to propose new computer vision problems in different domains. As previously established in the field, training data…

Computer Vision and Pattern Recognition · Computer Science 2020-04-01 Mehran Khodabandeh , Hamid Reza Vaezi Joze , Ilya Zharkov , Vivek Pradeep

Sign language is commonly used by deaf or speech impaired people to communicate but requires significant effort to master. Sign Language Recognition (SLR) aims to bridge the gap between sign language users and others by recognizing signs…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Songyao Jiang , Bin Sun , Lichen Wang , Yue Bai , Kunpeng Li , Yun Fu

Segmentation is a prerequisite yet challenging task for medical image analysis. In this paper, we introduce a novel deeply supervised active learning approach for finger bones segmentation. The proposed architecture is fine-tuned in an…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Ziyuan Zhao , Xiaoyan Yang , Bharadwaj Veeravalli , Zeng Zeng

Graph Convolutional Networks (GCNs) have been widely used to model the high-order dynamic dependencies for skeleton-based action recognition. Most existing approaches do not explicitly embed the high-order spatio-temporal importance to…

Computer Vision and Pattern Recognition · Computer Science 2022-02-07 Lipeng Ke , Kuan-Chuan Peng , Siwei Lyu

For robotic surgical videos, instrument presence annotations are typically recorded with video streams, which offering the potential to reduce the manually annotated costs for segmentation. However, weakly supervised surgical instrument…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Qiyuan Wang , Yanzhe Liu , Shang Zhao , Rong Liu , S. Kevin Zhou

This work presents an approach for recognizing isolated sign language gestures using skeleton-based pose data extracted from video sequences. A Graph-GRU temporal network is proposed to model both spatial and temporal dependencies between…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 B. Mederos , J. Mejía , A. Medina-Reyes , Y. Espinosa-Almeyda , J. D. Díaz-Roman , I. Rodríguez-Mederos , M. Mejía-Carreon , F. Gonzalez-Lopez

Recently, temporal action localization (TAL) has garnered significant interest in information retrieval community. However, existing supervised/weakly supervised methods are heavily dependent on extensive labeled temporal boundaries and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Yupeng Hu , Han Jiang , Hao Liu , Kun Wang , Haoyu Tang , Liqiang Nie

Online continuous action recognition has emerged as a critical research area due to its practical implications in real-world applications, such as human-computer interaction, healthcare, and robotics. Among various modalities,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-24 Rim Slama , Wael Rabah , Hazem Wannous

Skeleton-based human action recognition has achieved remarkable progress in recent years. However, most existing GCN-based methods rely on short-range motion topologies, which not only struggle to capture long-range joint dependencies and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Ruosi Wang , Fangwei Zuo , Lei Li , Zhaoqiang Xia

Automated assessment of human motion plays a vital role in rehabilitation, enabling objective evaluation of patient performance and progress. Unlike general human activity recognition, rehabilitation motion assessment focuses on analyzing…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Ali Ismail-Fawaz , Maxime Devanne , Stefano Berretti , Jonathan Weber , Germain Forestier

In recent years, self-supervised representation learning for skeleton-based action recognition has advanced with the development of contrastive learning methods. However, most of contrastive paradigms are inherently discriminative and often…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Dang Dinh Nguyen , Decky Aspandi Latif , Titus Zaharia

Segmenting and recognizing surgical operation trajectories into distinct, meaningful gestures is a critical preliminary step in surgical workflow analysis for robot-assisted surgery. This step is necessary for facilitating learning from…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Zhili Yuan , Jialin Lin , Dandan Zhang

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

Recent methods based on 3D skeleton data have achieved outstanding performance due to its conciseness, robustness, and view-independent representation. With the development of deep learning, Convolutional Neural Networks (CNN) and Long…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Chuankun Li , Pichao Wang , Shuang Wang , Yonghong Hou , Wanqing Li

Skeleton creation is an important phase in the character animation pipeline. However, handcrafting skeleton takes extensive labor time and domain knowledge. Automatic skeletonization provides a solution. However, most of the current…

Graphics · Computer Science 2021-10-13 Jing Ma , Jin Wang , Jituo Li , Dongliang Zhang