Weakly Supervised Video Anomaly Detection Based on 3D Convolution and LSTM
Weakly supervised video anomaly detection is a recent focus of computer vision research thanks to the availability of large-scale weakly supervised video datasets. However, most existing research works are limited to the frame-level classification with emphasis on finding the presence of specific ob...
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MDPI AG
2021
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oai:doaj.org-article:31e1f7c399464ec2869fff31068995ca2021-11-25T18:57:00ZWeakly Supervised Video Anomaly Detection Based on 3D Convolution and LSTM10.3390/s212275081424-8220https://doaj.org/article/31e1f7c399464ec2869fff31068995ca2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/22/7508https://doaj.org/toc/1424-8220Weakly supervised video anomaly detection is a recent focus of computer vision research thanks to the availability of large-scale weakly supervised video datasets. However, most existing research works are limited to the frame-level classification with emphasis on finding the presence of specific objects or activities. In this article, a new neural network architecture is proposed to efficiently extract the prominent features for detecting whether a video contains anomalies. A video is treated as an integral input and the detection follows the procedure of video-label assignment. The extraction of spatial and temporal features is carried out by three-dimensional convolutions, and then their relationship is further modeled using an LSTM network. The concise structure of the proposed method enables high computational efficiency, and extensive experiments demonstrate its effectiveness.Zhen MaJosé J. M. MachadoJoão Manuel R. S. TavaresMDPI AGarticlevideo anomaly detectionthree-dimensional convolutionLSTMweakly supervisedspatial-temporal featuresmax-poolingChemical technologyTP1-1185ENSensors, Vol 21, Iss 7508, p 7508 (2021) |
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video anomaly detection three-dimensional convolution LSTM weakly supervised spatial-temporal features max-pooling Chemical technology TP1-1185 |
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video anomaly detection three-dimensional convolution LSTM weakly supervised spatial-temporal features max-pooling Chemical technology TP1-1185 Zhen Ma José J. M. Machado João Manuel R. S. Tavares Weakly Supervised Video Anomaly Detection Based on 3D Convolution and LSTM |
description |
Weakly supervised video anomaly detection is a recent focus of computer vision research thanks to the availability of large-scale weakly supervised video datasets. However, most existing research works are limited to the frame-level classification with emphasis on finding the presence of specific objects or activities. In this article, a new neural network architecture is proposed to efficiently extract the prominent features for detecting whether a video contains anomalies. A video is treated as an integral input and the detection follows the procedure of video-label assignment. The extraction of spatial and temporal features is carried out by three-dimensional convolutions, and then their relationship is further modeled using an LSTM network. The concise structure of the proposed method enables high computational efficiency, and extensive experiments demonstrate its effectiveness. |
format |
article |
author |
Zhen Ma José J. M. Machado João Manuel R. S. Tavares |
author_facet |
Zhen Ma José J. M. Machado João Manuel R. S. Tavares |
author_sort |
Zhen Ma |
title |
Weakly Supervised Video Anomaly Detection Based on 3D Convolution and LSTM |
title_short |
Weakly Supervised Video Anomaly Detection Based on 3D Convolution and LSTM |
title_full |
Weakly Supervised Video Anomaly Detection Based on 3D Convolution and LSTM |
title_fullStr |
Weakly Supervised Video Anomaly Detection Based on 3D Convolution and LSTM |
title_full_unstemmed |
Weakly Supervised Video Anomaly Detection Based on 3D Convolution and LSTM |
title_sort |
weakly supervised video anomaly detection based on 3d convolution and lstm |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/31e1f7c399464ec2869fff31068995ca |
work_keys_str_mv |
AT zhenma weaklysupervisedvideoanomalydetectionbasedon3dconvolutionandlstm AT josejmmachado weaklysupervisedvideoanomalydetectionbasedon3dconvolutionandlstm AT joaomanuelrstavares weaklysupervisedvideoanomalydetectionbasedon3dconvolutionandlstm |
_version_ |
1718410514249285632 |