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相关论文: Two-Stream AMTnet for Action Detection

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We present a novel unsupervised deep learning framework for anomalous event detection in complex video scenes. While most existing works merely use hand-crafted appearance and motion features, we propose Appearance and Motion DeepNet (AMDN)…

计算机视觉与模式识别 · 计算机科学 2015-10-07 Dan Xu , Elisa Ricci , Yan Yan , Jingkuan Song , Nicu Sebe

Student engagement is crucial for improving learning outcomes in group activities. Highly engaged students perform better both individually and contribute to overall group success. However, most existing automated engagement recognition…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Saniah Kayenat Chowdhury , Muhammad E. H. Chowdhury

Fluid motion can be considered as a point cloud transformation when using the SPH method. Compared to traditional numerical analysis methods, using machine learning techniques to learn physics simulations can achieve near-accurate results,…

计算机视觉与模式识别 · 计算机科学 2024-04-19 Yu Chen , Shuai Zheng , Menglong Jin , Yan Chang , Nianyi Wang

The deep two-stream architecture exhibited excellent performance on video based action recognition. The most computationally expensive step in this approach comes from the calculation of optical flow which prevents it to be real-time. This…

计算机视觉与模式识别 · 计算机科学 2016-04-27 Bowen Zhang , Limin Wang , Zhe Wang , Yu Qiao , Hanli Wang

Streaming perception is a critical task in autonomous driving that requires balancing the latency and accuracy of the autopilot system. However, current methods for streaming perception are limited as they only rely on the current and…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Chenyang Li , Zhi-Qi Cheng , Jun-Yan He , Pengyu Li , Bin Luo , Hanyuan Chen , Yifeng Geng , Jin-Peng Lan , Xuansong Xie

We present a deep-learning framework for real-time multiple spatio-temporal (S/T) action localisation, classification and early prediction. Current state-of-the-art approaches work offline and are too slow to be useful in real- world…

计算机视觉与模式识别 · 计算机科学 2017-08-25 Gurkirt Singh , Suman Saha , Michael Sapienza , Philip Torr , Fabio Cuzzolin

With the rapid development of deep learning algorithms, action recognition in video has achieved many important research results. One issue in action recognition, Zero-Shot Action Recognition (ZSAR), has recently attracted considerable…

计算机视觉与模式识别 · 计算机科学 2020-04-24 Dong Cao , Lisha Xu , HaiBo Chen

This paper proposes a two-stream flow-guided convolutional attention networks for action recognition in videos. The central idea is that optical flows, when properly compensated for the camera motion, can be used to guide attention to the…

计算机视觉与模式识别 · 计算机科学 2017-08-31 An Tran , Loong-Fah Cheong

Video generation is an inherently challenging task, as it requires modeling realistic temporal dynamics as well as spatial content. Existing methods entangle the two intrinsically different tasks of motion and content creation in a single…

计算机视觉与模式识别 · 计算机科学 2020-01-13 Ximeng Sun , Huijuan Xu , Kate Saenko

State-of-the-art methods for video action recognition commonly use an ensemble of two networks: the spatial stream, which takes RGB frames as input, and the temporal stream, which takes optical flow as input. In recent work, both of these…

计算机视觉与模式识别 · 计算机科学 2019-02-07 Jonathan C. Stroud , David A. Ross , Chen Sun , Jia Deng , Rahul Sukthankar

Though action recognition in videos has achieved great success recently, it remains a challenging task due to the massive computational cost. Designing lightweight networks is a possible solution, but it may degrade the recognition…

计算机视觉与模式识别 · 计算机科学 2020-02-11 Wenhao Wu , Dongliang He , Xiao Tan , Shifeng Chen , Yi Yang , Shilei Wen

In this thesis, we focus on video action understanding problems from an online and real-time processing point of view. We start with the conversion of the traditional offline spatiotemporal action detection pipeline into an online…

计算机视觉与模式识别 · 计算机科学 2020-09-01 Gurkirt Singh

Most video restoration networks are slow, have high computational load, and can't be used for real-time video enhancement. In this work, we design an efficient and fast framework to perform real-time video enhancement for practical…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Jeya Maria Jose Valanarasu , Rahul Garg , Andeep Toor , Xin Tong , Weijuan Xi , Andreas Lugmayr , Vishal M. Patel , Anne Menini

The video and action classification have extremely evolved by deep neural networks specially with two stream CNN using RGB and optical flow as inputs and they present outstanding performance in terms of video analysis. One of the…

计算机视觉与模式识别 · 计算机科学 2016-09-05 Ali Diba , Ali Mohammad Pazandeh , Luc Van Gool

Radar gait recognition is robust to light variations and less infringement on privacy. Previous studies often utilize either spectrograms or cadence velocity diagrams. While the former shows the time-frequency patterns, the latter encodes…

计算机视觉与模式识别 · 计算机科学 2021-11-25 Shiliang Chen , Wentao He , Jianfeng Ren , Xudong Jiang

Human action or activity recognition in videos is a fundamental task in computer vision with applications in surveillance and monitoring, self-driving cars, sports analytics, human-robot interaction and many more. Traditional supervised…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Sharana Dharshikgan Suresh Dass , Hrishav Bakul Barua , Ganesh Krishnasamy , Raveendran Paramesran , Raphael C. -W. Phan

Currently, spatiotemporal features are embraced by most deep learning approaches for human action detection in videos, however, they neglect the important features in frequency domain. In this work, we propose an end-to-end network that…

计算机视觉与模式识别 · 计算机科学 2021-03-09 Changhai Li , Huawei Chen , Jingqing Lu , Yang Huang , Yingying Liu

Temporal modeling still remains challenging for action recognition in videos. To mitigate this issue, this paper presents a new video architecture, termed as Temporal Difference Network (TDN), with a focus on capturing multi-scale temporal…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Limin Wang , Zhan Tong , Bin Ji , Gangshan Wu

Temporal action recognition always depends on temporal action proposal generation to hypothesize actions and algorithms usually need to process very long video sequences and output the starting and ending times of each potential action in…

计算机视觉与模式识别 · 计算机科学 2022-03-21 Tian Wang , Shiye Lei , Youyou Jiang , Choi Chang , Hichem Snoussi , Guangcun Shan

Spatial and temporal stream model has gained great success in video action recognition. Most existing works pay more attention to designing effective features fusion methods, which train the two-stream model in a separate way. However, it's…

计算机视觉与模式识别 · 计算机科学 2019-08-28 Jingran Zhang , Fumin Shen , Xing Xu , Heng Tao Shen