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Most current action recognition methods heavily rely on appearance information by taking an RGB sequence of entire image regions as input. While being effective in exploiting contextual information around humans, e.g., human appearance and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-16 Gyeongsik Moon , Heeseung Kwon , Kyoung Mu Lee , Minsu Cho

We propose a method for representing motion information for video classification and retrieval. We improve upon local descriptor based methods that have been among the most popular and successful models for representing videos. The desired…

Computer Vision and Pattern Recognition · Computer Science 2015-02-17 Zhenzhong Lan , Xuanchong Li , Ming Lin , Alexander G. Hauptmann

Self-attention based Transformer models have demonstrated impressive results for image classification and object detection, and more recently for video understanding. Inspired by this success, we investigate the application of Transformer…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Chenlin Zhang , Jianxin Wu , Yin Li

Action detection aims to localize the starting and ending points of action instances in untrimmed videos, and predict the classes of those instances. In this paper, we make the observation that the outputs of the action detection task can…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Lin Geng Foo , Tianjiao Li , Hossein Rahmani , Jun Liu

This thesis focuses on video understanding for human action and interaction recognition. We start by identifying the main challenges related to action recognition from videos and review how they have been addressed by current methods. Based…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Alexandros Stergiou

Vision based human motion recognition has fascinated many researchers due to its critical challenges and a variety of applications. The applications range from simple gesture recognition to complicated behaviour understanding in…

Computer Vision and Pattern Recognition · Computer Science 2016-08-25 Geetanjali Vinayak Kale , Varsha Hemant Patil

Zero-Shot Action Recognition has attracted attention in the last years and many approaches have been proposed for recognition of objects, events and actions in images and videos. There is a demand for methods that can classify instances…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Valter Estevam , Helio Pedrini , David Menotti

In this paper we address the problem of motion event detection in athlete recordings from individual sports. In contrast to recent end-to-end approaches, we propose to use 2D human pose sequences as an intermediate representation that…

Computer Vision and Pattern Recognition · Computer Science 2020-04-23 Moritz Einfalt , Rainer Lienhart

This paper summarizes the recent progress in human motion analysis and its applications. In the beginning, we reviewed the motion capture systems and the representation model of human's motion data. Next, we sketched the advanced human…

Computer Vision and Pattern Recognition · Computer Science 2016-08-24 Qifei Wang

Human motion video generation has garnered significant research interest due to its broad applications, enabling innovations such as photorealistic singing heads or dynamic avatars that seamlessly dance to music. However, existing surveys…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Haiwei Xue , Xiangyang Luo , Zhanghao Hu , Xin Zhang , Xunzhi Xiang , Yuqin Dai , Jianzhuang Liu , Zhensong Zhang , Minglei Li , Jian Yang , Fei Ma , Zhiyong Wu , Changpeng Yang , Zonghong Dai , Fei Richard Yu

Understanding human behavior and activity facilitates advancement of numerous real-world applications, and is critical for video analysis. Despite the progress of action recognition algorithms in trimmed videos, the majority of real-world…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Elahe Vahdani , Yingli Tian

Recognizing human activities in videos is challenging due to the spatio-temporal complexity and context-dependence of human interactions. Prior studies often rely on single input modalities, such as RGB or skeletal data, limiting their…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Tuyen Tran , Thao Minh Le , Hung Tran , Truyen Tran

Hand kinematics can be measured in Human-Computer Interaction (HCI) with the intention to predict the user's intention in a reach-to-grasp action. Using multiple hand sensors, multivariate time series data are being captured. Given a number…

Machine Learning · Computer Science 2025-02-10 Reyhaneh Sabbagh Gol , Dimitar Valkov , Lars Linsen

Current video/action understanding systems have demonstrated impressive performance on large recognition tasks. However, they might be limiting themselves to learning to recognize spatiotemporal patterns, rather than attempting to…

Computer Vision and Pattern Recognition · Computer Science 2021-02-16 Paritosh Parmar , Brendan Morris

Traditional human activity recognition (HAR) based on time series adopts sliding window analysis method. This method faces the multi-class window problem which mistakenly labels different classes of sampling points within a window as a…

Machine Learning · Computer Science 2018-09-24 Yong Zhang , Yu Zhang , Zhao Zhang , Jie Bao , Yunpeng Song

Classification between different activities in an indoor environment using wireless signals is an emerging technology for various applications, including intrusion detection, patient care, and smart home. Researchers have shown different…

Information Theory · Computer Science 2021-02-10 B. R. Manoj , Guoda Tian , Sara Gunnarsson , Fredrik Tufvesson , Erik G. Larsson

Human Action Recognition (HAR) aims to understand human behavior and assign a label to each action. It has a wide range of applications, and therefore has been attracting increasing attention in the field of computer vision. Human actions…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Zehua Sun , Qiuhong Ke , Hossein Rahmani , Mohammed Bennamoun , Gang Wang , Jun Liu

Human Action Recognition (HAR) is a challenging domain in computer vision, involving recognizing complex patterns by analyzing the spatiotemporal dynamics of individuals' movements in videos. These patterns arise in sequential data, such as…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 Ali K. AlShami , Ryan Rabinowitz , Khang Lam , Yousra Shleibik , Melkamu Mersha , Terrance Boult , Jugal Kalita

Video-based visual relation detection tasks, such as video scene graph generation, play important roles in fine-grained video understanding. However, current video visual relation detection datasets have two main limitations that hinder the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Tao Wu , Runyu He , Gangshan Wu , Limin Wang

The paper provides a survey of the development of machine-learning techniques for video analysis. The survey provides a summary of the most popular deep learning methods used for human activity recognition. We discuss how popular…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Marios S. Pattichis , Venkatesh Jatla , Alvaro E. Ullao Cerna