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Graph convolutional networks (GCNs) have been very successful in modeling non-Euclidean data structures, like sequences of body skeletons forming actions modeled as spatio-temporal graphs. Most GCN-based action recognition methods use deep…

Computer Vision and Pattern Recognition · Computer Science 2021-04-26 Negar Heidari , Alexandros Iosifidis

Spatio-temporal information is key to resolve occlusion and depth ambiguity in 3D pose estimation. Previous methods have focused on either temporal contexts or local-to-global architectures that embed fixed-length spatio-temporal…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Junfa Liu , Juan Rojas , Zhijun Liang , Yihui Li , Yisheng Guan

Current CNN-based algorithms for recovering the 3D pose of an object in an image assume knowledge about both the object category and its 2D localization in the image. In this paper, we relax one of these constraints and propose to solve the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Siddharth Mahendran , Haider Ali , Rene Vidal

RGB-D based 6D pose estimation has recently achieved remarkable progress, but still suffers from two major limitations: (1) ineffective representation of depth data and (2) insufficient integration of different modalities. This paper…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Guangyuan Zhou , Huiqun Wang , Jiaxin Chen , Di Huang

Graph Convolutional Networks (GCNs) have proven to be highly effective for skeleton-based action recognition, primarily due to their ability to leverage graph topology for feature aggregation, a key factor in extracting meaningful…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Haiqing Ren , Zhongkai Luo , Heng Fan , Xiaohui Yuan , Guanchen Wang , Libo Zhang

Recognition of human actions and associated interactions with objects and the environment is an important problem in computer vision due to its potential applications in a variety of domains. The most versatile methods can generalize to…

Computer Vision and Pattern Recognition · Computer Science 2019-12-10 Behnoosh Parsa , Athma Narayanan , Behzad Dariush

Recently, there has been a growing interest in predicting human motion, which involves forecasting future body poses based on observed pose sequences. This task is complex due to modeling spatial and temporal relationships. The most…

Computer Vision and Pattern Recognition · Computer Science 2023-04-12 Hongwei Ren , Yuhong Shi , Kewei Liang

Skeleton-based two-person interaction recognition has been gaining increasing attention as advancements are made in pose estimation and graph convolutional networks. Although the accuracy has been gradually improving, the increasing…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Yoshiki Ito , Quan Kong , Kenichi Morita , Tomoaki Yoshinaga

Graph convolutional networks (GCNs) have been widely used and achieved remarkable results in skeleton-based action recognition. In GCNs, graph topology dominates feature aggregation and therefore is the key to extracting representative…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Yuxin Chen , Ziqi Zhang , Chunfeng Yuan , Bing Li , Ying Deng , Weiming Hu

Action recognition is a key algorithmic part of emerging on-the-edge smart video surveillance and security systems. Skeleton-based action recognition is an attractive approach which, instead of using RGB pixel data, relies on human pose…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Justin Sanchez , Christopher Neff , Hamed Tabkhi

Recent graph convolutional neural networks (GCNs) have shown high performance in the field of human action recognition by using human skeleton poses. However, it fails to detect human-object interaction cases successfully due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Hesham M. Shehata , Mohammad Abdolrahmani

We propose a novel skeleton-based representation for 3D action recognition in videos using Deep Convolutional Neural Networks (D-CNNs). Two key issues have been addressed: First, how to construct a robust representation that easily captures…

Computer Vision and Pattern Recognition · Computer Science 2018-07-19 Huy Hieu Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

In human pose estimation methods based on graph convolutional architectures, the human skeleton is usually modeled as an undirected graph whose nodes are body joints and edges are connections between neighboring joints. However, most of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Tanvir Hassan , A. Ben Hamza

Automatic human action recognition is indispensable for almost artificial intelligent systems such as video surveillance, human-computer interfaces, video retrieval, etc. Despite a lot of progress, recognizing actions in an unknown video is…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Huy-Hieu Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

The computer vision community is currently focusing on solving action recognition problems in real videos, which contain thousands of samples with many challenges. In this process, Deep Convolutional Neural Networks (D-CNNs) have played a…

Computer Vision and Pattern Recognition · Computer Science 2018-03-22 Huy-Hieu Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

Skeleton sequences are lightweight and compact, and thus are ideal candidates for action recognition on edge devices. Recent skeleton-based action recognition methods extract features from 3D joint coordinates as spatial-temporal cues,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Zhenyue Qin , Yang Liu , Pan Ji , Dongwoo Kim , Lei Wang , Bob McKay , Saeed Anwar , Tom Gedeon

Human skeletons and RGB sequences are both widely-adopted input modalities for human action recognition. However, skeletons lack appearance features and color data suffer large amount of irrelevant depiction. To address this, we introduce…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Runwei Ding , Yuhang Wen , Jinfu Liu , Nan Dai , Fanyang Meng , Mengyuan Liu

Graph convolutional networks (GCNs) aim at extending deep learning to arbitrary irregular domains, namely graphs. Their success is highly dependent on how the topology of input graphs is defined and most of the existing GCN architectures…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Hichem Sahbi

Graph Convolutional Networks (GCNs) have attracted increasing interests for the task of skeleton-based action recognition. The key lies in the design of the graph structure, which encodes skeleton topology information. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2020-07-30 Fanfan Ye , Shiliang Pu , Qiaoyong Zhong , Chao Li , Di Xie , Huiming Tang

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