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Graph convolutional networks (GCNs) are widely adopted in skeleton-based action recognition due to their powerful ability to model data topology. We argue that the performance of recent proposed skeleton-based action recognition methods is…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Liyu Wu , Can Zhang , Yuexian Zou

Skeleton-based human action recognition aims to classify human skeletal sequences, which are spatiotemporal representations of actions, into predefined categories. To reduce the reliance on costly annotations of skeletal sequences while…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Zhigang Tu , Zhengbo Zhang , Jia Gong , Junsong Yuan , Bo Du

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

Multimodal learning leverages complementary information derived from different modalities, thereby enhancing performance in medical image segmentation. However, prevailing multimodal learning methods heavily rely on extensive well-annotated…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Xiaogen Zhou , Yiyou Sun , Min Deng , Winnie Chiu Wing Chu , Qi Dou

Skeleton-based action recognition has attracted lots of research attention. Recently, to build an accurate skeleton-based action recognizer, a variety of works have been proposed. Among them, some works use large model architectures as…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Haoxuan Qu , Yujun Cai , Jun Liu

In recent years, remarkable results have been achieved in self-supervised action recognition using skeleton sequences with contrastive learning. It has been observed that the semantic distinction of human action features is often…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Yilei Hua , Wenhan Wu , Ce Zheng , Aidong Lu , Mengyuan Liu , Chen Chen , Shiqian Wu

Multi-modal learning, which focuses on utilizing various modalities to improve the performance of a model, is widely used in video recognition. While traditional multi-modal learning offers excellent recognition results, its computational…

Computer Vision and Pattern Recognition · Computer Science 2021-05-13 Rameswar Panda , Chun-Fu Chen , Quanfu Fan , Ximeng Sun , Kate Saenko , Aude Oliva , Rogerio Feris

RGB-T saliency detection has emerged as an important computer vision task, identifying conspicuous objects in challenging scenes such as dark environments. However, existing methods neglect the characteristics of cross-modal features and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-15 Guangyu Ren , Jitesh Joshi , Youngjun Cho

The self-supervised pretraining paradigm has achieved great success in learning 3D action representations for skeleton-based action recognition using contrastive learning. However, learning effective representations for skeleton-based…

Computer Vision and Pattern Recognition · Computer Science 2026-05-06 Qiushuo Cheng , Jingjing Liu , Catherine Morgan , Alan Whone , Majid Mirmehdi

Human action recognition aims at classifying the category of human action from a segment of a video. Recently, people have dived into designing GCN-based models to extract features from skeletons for performing this task, because skeleton…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Huanyu Zhou , Qingjie Liu , Yunhong Wang

Emotion recognition based on body movements is vital in human-computer interaction. However, existing emotion recognition methods predominantly focus on enhancing classification accuracy, often neglecting the provision of textual…

Human-Computer Interaction · Computer Science 2024-12-23 Haifeng Lu , Jiuyi Chen , Feng Liang , Mingkui Tan , Runhao Zeng , Xiping Hu

Multimodal Large Language Models (MLLMs) have made significant advancements, demonstrating powerful capabilities in processing and understanding multimodal data. Fine-tuning MLLMs with Federated Learning (FL) allows for expanding the…

Machine Learning · Computer Science 2025-03-11 Binqian Xu , Xiangbo Shu , Haiyang Mei , Guosen Xie , Basura Fernando , Jinhui Tang

Multimodal Large Language Models (MLLMs), built on powerful language backbones, have enabled Multimodal In-Context Learning (MICL)-adapting to new tasks from a few multimodal demonstrations consisting of images, questions, and answers.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Shuo Chen , Jianzhe Liu , Zhen Han , Yan Xia , Daniel Cremers , Philip Torr , Volker Tresp , Jindong Gu

Using multiple spatial modalities has been proven helpful in improving semantic segmentation performance. However, there are several real-world challenges that have yet to be addressed: (a) improving label efficiency and (b) enhancing…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 Harsh Maheshwari , Yen-Cheng Liu , Zsolt Kira

Human activity recognition serves as the foundation for various emerging applications. In recent years, researchers have used collaborative sensing of multi-source sensors to capture complex and dynamic human activities. However, multimodal…

Machine Learning · Computer Science 2026-04-28 Long Jing , Zhixiong Yang , Yajun Zhang , Xinlong Feng

Skeleton-based human action recognition has been drawing more interest recently due to its low sensitivity to appearance changes and the accessibility of more skeleton data. However, even the 3D skeletons captured in practice are still…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Cunling Bian , Wei Feng , Fanbo Meng , Song Wang

Large Language Models (LLMs) hold rich implicit knowledge and powerful transferability. In this paper, we explore the combination of LLMs with the human skeleton to perform action classification and description. However, when treating LLM…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Qilang Ye , Yu Zhou , Lian He , Jie Zhang , Xuanming Guo , Jiayu Zhang , Mingkui Tan , Weicheng Xie , Yue Sun , Tao Tan , Xiaochen Yuan , Ghada Khoriba , Zitong Yu

In action recognition tasks, feature diversity is essential for enhancing model generalization and performance. Existing methods typically promote feature diversity by expanding the training data in the sample space, which often leads to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Zhifu Zhao , Hanyang Hua , Jianan Li , Shaoxin Wu , Fu Li , Yangtao Zhou , Yang Li

Although instruction-tuned large language models (LLMs) have exhibited remarkable capabilities across various NLP tasks, their effectiveness on other data modalities beyond text has not been fully studied. In this work, we propose…

Computation and Language · Computer Science 2023-06-16 Chenyang Lyu , Minghao Wu , Longyue Wang , Xinting Huang , Bingshuai Liu , Zefeng Du , Shuming Shi , Zhaopeng Tu

Multi-modal learning has emerged as a key technique for improving performance across domains such as autonomous driving, robotics, and reasoning. However, in certain scenarios, particularly in resource-constrained environments, some…

Robotics · Computer Science 2026-01-01 Rui Liu , Yu Shen , Peng Gao , Pratap Tokekar , Ming Lin