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Zero-shot skeleton-based action recognition aims to recognize unseen actions by transferring knowledge from seen categories through semantic descriptions. Most existing methods typically align skeleton features with textual embeddings…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Ning Wang , Tieyue Wu , Naeha Sharif , Farid Boussaid , Guangming Zhu , Lin Mei , Mohammed Bennamoun , zhang liang

Human action recognition is crucial in computer vision systems. However, in real-world scenarios, human actions often fall outside the distribution of training data, requiring a model to both recognize in-distribution (ID) actions and…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Jing Xu , Anqi Zhu , Jingyu Lin , Qiuhong Ke , Cunjian Chen

Skeleton data, which consists of only the 2D/3D coordinates of the human joints, has been widely studied for human action recognition. Existing methods take the semantics as prior knowledge to group human joints and draw correlations…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Lei Shi , Yifan Zhang , Jian Cheng , Hanqing Lu

Skeleton-based human action recognition is a longstanding challenge due to its complex dynamics. Some fine-grain details of the dynamics play a vital role in classification. The existing work largely focuses on designing incremental neural…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Ruijie Hou , Yanran Li , Ningyu Zhang , Yulin Zhou , Xiaosong Yang , Zhao Wang

Skeleton-based human action recognition has received widespread attention in recent years due to its diverse range of application scenarios. Due to the different sources of human skeletons, skeleton data naturally exhibit heterogeneity. The…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Hongsong Wang , Xiaoyan Ma , Jidong Kuang , Jie Gui

Video-based human action recognition is currently one of the most active research areas in computer vision. Various research studies indicate that the performance of action recognition is highly dependent on the type of features being…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Lei Wang , Du Q. Huynh , Piotr Koniusz

In real-world recognition/classification tasks, limited by various objective factors, it is usually difficult to collect training samples to exhaust all classes when training a recognizer or classifier. A more realistic scenario is open set…

Machine Learning · Computer Science 2020-03-24 Chuanxing Geng , Sheng-jun Huang , Songcan Chen

Generalized zero-shot skeleton-based action recognition (GZSSAR) is a new challenging problem in computer vision community, which requires models to recognize actions without any training samples. Previous studies only utilize the action…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Ming-Zhe Li , Zhen Jia , Zhang Zhang , Zhanyu Ma , Liang Wang

One-shot action recognition allows the recognition of human-performed actions with only a single training example. This can influence human-robot-interaction positively by enabling the robot to react to previously unseen behaviour. We…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Raphael Memmesheimer , Simon Häring , Nick Theisen , Dietrich Paulus

We present SkeleTR, a new framework for skeleton-based action recognition. In contrast to prior work, which focuses mainly on controlled environments, we target more general scenarios that typically involve a variable number of people and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Haodong Duan , Mingze Xu , Bing Shuai , Davide Modolo , Zhuowen Tu , Joseph Tighe , Alessandro Bergamo

Few-Shot Action Recognition (FS-AR) has shown promising results but is often limited by a closed-set assumption that fails in real-world open-set scenarios. While Few-Shot Open-Set (FSOS) recognition is well-established for images, its…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Stefano Berti , Giulia Pasquale , Lorenzo Natale

3D multi-person motion prediction is a challenging task that involves modeling individual behaviors and interactions between people. Despite the emergence of approaches for this task, comparing them is difficult due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Xiaogang Peng , Xiao Zhou , Yikai Luo , Hao Wen , Yu Ding , Zizhao Wu

3D action recognition is referred to as the classification of action sequences which consist of 3D skeleton joints. While many research work are devoted to 3D action recognition, it mainly suffers from three problems: highly complicated…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Bin Sun , Shaofan Wang , Dehui Kong , Lichun Wang , Baocai Yin

Human gesture recognition has assumed a capital role in industrial applications, such as Human-Machine Interaction. We propose an approach for segmentation and classification of dynamic gestures based on a set of handcrafted features, which…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 André Brás , Miguel Simão , Pedro Neto

Human skeleton-based action recognition has long been an indispensable aspect of artificial intelligence. Current state-of-the-art methods tend to consider only the dependencies between connected skeletal joints, limiting their ability to…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Yuheng Yang

Zero-shot human skeleton-based action recognition aims to construct a model that can recognize actions outside the categories seen during training. Previous research has focused on aligning sequences' visual and semantic spatial…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Haojun Xu , Yan Gao , Jie Li , Xinbo Gao

Rapid progress and superior performance have been achieved for skeleton-based action recognition recently. In this article, we investigate this problem under a cross-dataset setting, which is a new, pragmatic, and challenging task in…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Yansong Tang , Xingyu Liu , Xumin Yu , Danyang Zhang , Jiwen Lu , Jie Zhou

This paper makes two scientific contributions to the field of exoskeleton-based action and movement recognition. First, it presents a novel machine learning and pattern recognition-based framework that can detect a wide range of actions and…

Robotics · Computer Science 2022-04-28 Nirmalya Thakur , Chia Y. Han

Self-supervised representation learning for human action recognition has developed rapidly in recent years. Most of the existing works are based on skeleton data while using a multi-modality setup. These works overlooked the differences in…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Yiping Wei , Kunyu Peng , Alina Roitberg , Jiaming Zhang , Junwei Zheng , Ruiping Liu , Yufan Chen , Kailun Yang , Rainer Stiefelhagen

With the inherent advantages of skeleton representation, 3D skeleton-based action recognition has become a prominent topic in the field of computer vision. However, previous reviews have predominantly adopted a model-oriented perspective,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Mengyuan Liu , Hong Liu , Qianshuo Hu , Bin Ren , Junsong Yuan , Jiaying Lin , Jiajun Wen