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Recently, video-based action recognition methods using convolutional neural networks (CNNs) achieve remarkable recognition performance. However, there is still lack of understanding about the generalization mechanism of action recognition…

Computer Vision and Pattern Recognition · Computer Science 2023-12-08 Jaehui Hwang , Huan Zhang , Jun-Ho Choi , Cho-Jui Hsieh , Jong-Seok Lee

Research in human action recognition has accelerated significantly since the introduction of powerful machine learning tools such as Convolutional Neural Networks (CNNs). However, effective and efficient methods for incorporation of…

Computer Vision and Pattern Recognition · Computer Science 2018-03-21 Jinliang Zang , Le Wang , Ziyi Liu , Qilin Zhang , Zhenxing Niu , Gang Hua , Nanning Zheng

Motivated by our observation that motion information is the key to good anomaly detection performance in video, we propose a temporal augmented network to learn a motion-aware feature. This feature alone can achieve competitive performance…

Computer Vision and Pattern Recognition · Computer Science 2019-07-25 Yi Zhu , Shawn Newsam

Typical human actions last several seconds and exhibit characteristic spatio-temporal structure. Recent methods attempt to capture this structure and learn action representations with convolutional neural networks. Such representations,…

Computer Vision and Pattern Recognition · Computer Science 2017-06-05 Gül Varol , Ivan Laptev , Cordelia Schmid

Action recognition is currently one of the top-challenging research fields in computer vision. Convolutional Neural Networks (CNNs) have significantly boosted its performance but rely on fixed-size spatio-temporal windows of analysis,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-27 Alejandro López-Cifuentes , Marcos Escudero-Viñolo , Jesús Bescós

Psychological studies have found that human visual tracking system involves learning, memory, and planning. Despite recent successes, not many works have focused on memory and planning in deep learning based tracking. We are thus interested…

Computer Vision and Pattern Recognition · Computer Science 2019-08-09 Zhenmei Shi , Haoyang Fang , Yu-Wing Tai , Chi-Keung Tang

There is significant progress in recognizing traditional human activities from videos focusing on highly distinctive actions involving discriminative body movements, body-object and/or human-human interactions. Driver's activities are…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Zachary Wharton , Ardhendu Behera , Yonghuai Liu , Nik Bessis

We consider the task of dimensional emotion recognition on video data using deep learning. While several previous methods have shown the benefits of training temporal neural network models such as recurrent neural networks (RNNs) on…

Computer Vision and Pattern Recognition · Computer Science 2017-01-11 Pooya Khorrami , Tom Le Paine , Kevin Brady , Charlie Dagli , Thomas S. Huang

Human action recognition is an important task in computer vision. Extracting discriminative spatial and temporal features to model the spatial and temporal evolutions of different actions plays a key role in accomplishing this task. In this…

Computer Vision and Pattern Recognition · Computer Science 2016-11-21 Sijie Song , Cuiling Lan , Junliang Xing , Wenjun Zeng , Jiaying Liu

The discriminative power of modern deep learning models for 3D human action recognition is growing ever so potent. In conjunction with the recent resurgence of 3D human action representation with 3D skeletons, the quality and the pace of…

Computer Vision and Pattern Recognition · Computer Science 2017-04-18 Tae Soo Kim , Austin Reiter

Human action recognition has become an important research focus in computer vision due to the wide range of applications where it is used. 3D Resnet-based CNN models, particularly MC3, R3D, and R(2+1)D, have different convolutional filters…

Computer Vision and Pattern Recognition · Computer Science 2026-01-19 Mohammad Rasras , Iuliana Marin , Serban Radu , Irina Mocanu

In this paper, we newly introduce the concept of temporal attention filters, and describe how they can be used for human activity recognition from videos. Many high-level activities are often composed of multiple temporal parts (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2016-12-28 AJ Piergiovanni , Chenyou Fan , Michael S. Ryoo

Recent learning-based image classification and speech recognition approaches make extensive use of attention mechanisms to achieve state-of-the-art recognition power, which demonstrates the effectiveness of attention mechanisms. Motivated…

Signal Processing · Electrical Eng. & Systems 2022-01-12 Shangao Lin , Yuan Zeng , Yi Gong

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

Human action recognition remains an important yet challenging task. This work proposes a novel action recognition system. It uses a novel Multiple View Region Adaptive Multi-resolution in time Depth Motion Map (MV-RAMDMM) formulation…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Mahmoud Al-Faris , John P. Chiverton , Yanyan Yang , David L. Ndzi

Deep convolutional networks have achieved great success for image recognition. However, for action recognition in videos, their advantage over traditional methods is not so evident. We present a general and flexible video-level framework…

Computer Vision and Pattern Recognition · Computer Science 2017-05-09 Limin Wang , Yuanjun Xiong , Zhe Wang , Yu Qiao , Dahua Lin , Xiaoou Tang , Luc Van Gool

Typical neural networks with external memory do not effectively separate capacity for episodic and working memory as is required for reasoning in humans. Applying knowledge gained from psychological studies, we designed a new model called…

Machine Learning · Computer Science 2018-10-01 T. S. Jayram , Younes Bouhadjar , Ryan L. McAvoy , Tomasz Kornuta , Alexis Asseman , Kamil Rocki , Ahmet S. Ozcan

Action recognition is a fundamental problem in computer vision with a lot of potential applications such as video surveillance, human computer interaction, and robot learning. Given pre-segmented videos, the task is to recognize actions…

Computer Vision and Pattern Recognition · Computer Science 2017-06-28 Ahsan Iqbal , Alexander Richard , Hilde Kuehne , Juergen Gall

We introduce a novel self-supervised learning approach to learn representations of videos that are responsive to changes in the motion dynamics. Our representations can be learned from data without human annotation and provide a substantial…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Simon Jenni , Givi Meishvili , Paolo Favaro

We propose a soft attention based model for the task of action recognition in videos. We use multi-layered Recurrent Neural Networks (RNNs) with Long Short-Term Memory (LSTM) units which are deep both spatially and temporally. Our model…

Machine Learning · Computer Science 2016-02-16 Shikhar Sharma , Ryan Kiros , Ruslan Salakhutdinov