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Modeling and recognition of surgical activities poses an interesting research problem. Although a number of recent works studied automatic recognition of surgical activities, generalizability of these works across different tasks and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-17 Duygu Sarikaya , Pierre Jannin

One-shot action recognition aims to recognize new action categories from a single reference example, typically referred to as the anchor example. This work presents a novel approach for one-shot action recognition in the wild that computes…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Alberto Sabater , Laura Santos , Jose Santos-Victor , Alexandre Bernardino , Luis Montesano , Ana C. Murillo

Deep Learning shows very good performance when trained on large labeled data sets. The problem of training a deep net on a few or one sample per class requires a different learning approach which can generalize to unseen classes using only…

Machine Learning · Computer Science 2018-08-23 Jinchao Liu , Stuart J. Gibson , Margarita Osadchy

Skeleton-based Human Activity Recognition has achieved great interest in recent years as skeleton data has demonstrated being robust to illumination changes, body scales, dynamic camera views, and complex background. In particular,…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Chiara Plizzari , Marco Cannici , Matteo Matteucci

Skeleton-based human action recognition has attracted a lot of research attention during the past few years. Recent works attempted to utilize recurrent neural networks to model the temporal dependencies between the 3D positional…

Computer Vision and Pattern Recognition · Computer Science 2017-06-27 Jun Liu , Amir Shahroudy , Dong Xu , Alex C. Kot , Gang Wang

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 data-driven approach that learns an optimal representation of vision features like skeleton frames or RGB videos is currently a dominant paradigm for activity recognition. While great improvements have been achieved from existing single…

Computer Vision and Pattern Recognition · Computer Science 2020-04-30 Bruce X. B. Yu , Yan Liu , Keith C. C. Chan

Despite the tremendous success of deep neural networks in medical image segmentation, they typically require a large amount of costly, expert-level annotated data. Few-shot segmentation approaches address this issue by learning to transfer…

Computer Vision and Pattern Recognition · Computer Science 2021-03-19 Qinji Yu , Kang Dang , Nima Tajbakhsh , Demetri Terzopoulos , Xiaowei Ding

Despite the notable success of graph convolutional networks (GCNs) in skeleton-based action recognition, their performance often depends on large volumes of labeled data, which are frequently scarce in practical settings. To address this…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Hichem Sahbi

Skeleton-based human action recognition has achieved a great interest in recent years, as skeleton data has been demonstrated to be robust to illumination changes, body scales, dynamic camera views, and complex background. Nevertheless, an…

Computer Vision and Pattern Recognition · Computer Science 2021-06-24 Chiara Plizzari , Marco Cannici , Matteo Matteucci

Graph convolutional network based methods that model the body-joints' relations, have recently shown great promise in 3D skeleton-based human motion prediction. However, these methods have two critical issues: first, deep graph convolutions…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Maosen Li , Siheng Chen , Zijing Zhang , Lingxi Xie , Qi Tian , Ya Zhang

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

The goal of sign language recognition (SLR) is to help those who are hard of hearing or deaf overcome the communication barrier. Most existing approaches can be typically divided into two lines, i.e., Skeleton-based and RGB-based methods,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Xiaolong Shen , Zhedong Zheng , Yi Yang

Most existing one-shot skeleton-based action recognition focuses on raw low-level information (e.g., joint location), and may suffer from local information loss and low generalization ability. To alleviate these, we propose to leverage text…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Tingbing Yan , Wenzheng Zeng , Yang Xiao , Xingyu Tong , Bo Tan , Zhiwen Fang , Zhiguo Cao , Joey Tianyi Zhou

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

In skeleton-based action recognition, a key challenge is distinguishing between actions with similar trajectories of joints due to the lack of image-level details in skeletal representations. Recognizing that the differentiation of similar…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Hongda Liu , Yunfan Liu , Min Ren , Hao Wang , Yunlong Wang , Zhenan Sun

Despite the notable progress made in action recognition tasks, not much work has been done in action recognition specifically for human-robot interaction. In this paper, we deeply explore the characteristics of the action recognition task…

Computer Vision and Pattern Recognition · Computer Science 2020-07-03 Ziyang Song , Ziyi Yin , Zejian Yuan , Chong Zhang , Wanchao Chi , Yonggen Ling , Shenghao Zhang

This paper presents a new method for 3D action recognition with skeleton sequences (i.e., 3D trajectories of human skeleton joints). The proposed method first transforms each skeleton sequence into three clips each consisting of several…

Computer Vision and Pattern Recognition · Computer Science 2017-11-21 Qiuhong Ke , Mohammed Bennamoun , Senjian An , Ferdous Sohel , Farid Boussaid

Scale variance among different sizes of body parts and objects is a challenging problem for visual recognition tasks. Existing works usually design dedicated backbone or apply Neural architecture Search(NAS) for each task to tackle this…

Computer Vision and Pattern Recognition · Computer Science 2020-12-01 Hsin-Pai Cheng , Feng Liang , Meng Li , Bowen Cheng , Feng Yan , Hai Li , Vikas Chandra , Yiran Chen

Skeleton-based human action recognition has recently attracted increasing attention thanks to the accessibility and the popularity of 3D skeleton data. One of the key challenges in skeleton-based action recognition lies in the large view…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Pengfei Zhang , Cuiling Lan , Junliang Xing , Wenjun Zeng , Jianru Xue , Nanning Zheng