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This paper presents a new framework for human action recognition from a 3D skeleton sequence. Previous studies do not fully utilize the temporal relationships between video segments in a human action. Some studies successfully used very…

Computer Vision and Pattern Recognition · Computer Science 2018-08-21 Thao Minh Le , Nakamasa Inoue , Koichi Shinoda

Recognizing human actions based on videos has became one of the most popular areas of research in computer vision in recent years. This area has many applications such as surveillance, robotics, health care, video search and human-computer…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Aytekin Nebisoy , Saber Malekzadeh

Most video based action recognition approaches create the video-level representation by temporally pooling the features extracted at each frame. The pooling methods that they adopt, however, usually completely or partially neglect the…

Computer Vision and Pattern Recognition · Computer Science 2016-02-02 Peng Wang , Lingqiao Liu , Chunhua Shen , Heng Tao Shen

The current paper proposes a novel neural network model for recognizing visually perceived human actions. The proposed multiple spatio-temporal scales recurrent neural network (MSTRNN) model is derived by introducing multiple timescale…

Computer Vision and Pattern Recognition · Computer Science 2017-02-23 Haanvid Lee , Minju Jung , Jun Tani

Recognizing facial expressions from static images or video sequences is a widely studied but still challenging problem. The recent progresses obtained by deep neural architectures, or by ensembles of heterogeneous models, have shown that…

Computer Vision and Pattern Recognition · Computer Science 2018-10-25 Lisa Graziani , Stefano Melacci , Marco Gori

Most action recognition models today are highly parameterized, and evaluated on datasets with appearance-wise distinct classes. It has also been shown that 2D Convolutional Neural Networks (CNNs) tend to be biased toward texture rather than…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Sofia Broomé , Ernest Pokropek , Boyu Li , Hedvig Kjellström

Human actions in videos are 3D signals. However, there are a few methods available for multiple human action recognition. For long videos, it's difficult to search within a video for a specific action and/or person. For that, this paper…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Noor Almaadeed , Omar Elharrouss , Somaya Al-Maadeed , Ahmed Bouridane , Azeddine Beghdadi

Anticipating human actions is an important task that needs to be addressed for the development of reliable intelligent agents, such as self-driving cars or robot assistants. While the ability to make future predictions with high accuracy is…

Computer Vision and Pattern Recognition · Computer Science 2021-07-21 Olga Zatsarynna , Yazan Abu Farha , Juergen Gall

The dominant paradigm for video-based action segmentation is composed of two steps: first, for each frame, compute low-level features using Dense Trajectories or a Convolutional Neural Network that encode spatiotemporal information locally,…

Computer Vision and Pattern Recognition · Computer Science 2016-08-31 Colin Lea , Rene Vidal , Austin Reiter , Gregory D. Hager

As research on action recognition matures, the focus is shifting away from categorizing basic task-oriented actions using hand-segmented video datasets to understanding complex goal-oriented daily human activities in real-world settings.…

Computer Vision and Pattern Recognition · Computer Science 2016-03-18 Hilde Kuehne , Juergen Gall , Thomas Serre

Classifying videos according to content semantics is an important problem with a wide range of applications. In this paper, we propose a hybrid deep learning framework for video classification, which is able to model static spatial…

Computer Vision and Pattern Recognition · Computer Science 2015-04-08 Zuxuan Wu , Xi Wang , Yu-Gang Jiang , Hao Ye , Xiangyang Xue

Motivated by the previous success of Two-Dimensional Convolutional Neural Network (2D CNN) on image recognition, researchers endeavor to leverage it to characterize videos. However, one limitation of applying 2D CNN to analyze videos is…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Junwu Weng , Donghao Luo , Yabiao Wang , Ying Tai , Chengjie Wang , Jilin Li , Feiyue Huang , Xudong Jiang , Junsong Yuan

We propose an approach for forecasting video of complex human activity involving multiple people. Direct pixel-level prediction is too simple to handle the appearance variability in complex activities. Hence, we develop novel intermediate…

Computer Vision and Pattern Recognition · Computer Science 2017-12-07 Mengyao Zhai , Jiacheng Chen , Ruizhi Deng , Lei Chen , Ligeng Zhu , Greg Mori

It remains a challenge to efficiently extract spatialtemporal information from skeleton sequences for 3D human action recognition. Although most recent action recognition methods are based on Recurrent Neural Networks which present…

Computer Vision and Pattern Recognition · Computer Science 2017-06-08 Hong Liu , Juanhui Tu , Mengyuan Liu

The task of action recognition or action detection involves analyzing videos and determining what action or motion is being performed. The primary subject of these videos are predominantly humans performing some action. However, this…

Computer Vision and Pattern Recognition · Computer Science 2019-01-29 Amlaan Bhoi

This paper presents a novel method to involve both spatial and temporal features for semantic video segmentation. Current work on convolutional neural networks(CNNs) has shown that CNNs provide advanced spatial features supporting a very…

Computer Vision and Pattern Recognition · Computer Science 2016-09-05 Mohsen Fayyaz , Mohammad Hajizadeh Saffar , Mohammad Sabokrou , Mahmood Fathy , Reinhard Klette , Fay Huang

In this paper, we address the challenging problem of action recognition, using event-based cameras. To recognise most gestural actions, often higher temporal precision is required for sampling visual information. Actions are defined by…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Rohan Ghosh , Anupam Gupta , Andrei Nakagawa , Alcimar Soares , Nitish Thakor

Early action recognition (action prediction) from limited preliminary observations plays a critical role for streaming vision systems that demand real-time inference, as video actions often possess elongated temporal spans which cause…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 He Zhao , Richard P. Wildes

Online action recognition is an important task for human centered intelligent services, which is still difficult to achieve due to the varieties and uncertainties of spatial and temporal scales of human actions. In this paper, we propose…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Guoliang Liu , Qinghui Zhang , Yichao Cao , Junwei Li , Hao Wu , Guohui Tian

Developing a technique for the automatic analysis of surveillance videos in order to identify the presence of violence is of broad interest. In this work, we propose a deep neural network for the purpose of recognizing violent videos. A…

Computer Vision and Pattern Recognition · Computer Science 2017-09-20 Swathikiran Sudhakaran , Oswald Lanz
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