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Communication Dans Un Congrès Année : 2021

Spatio-Temporal Convolutional Autoencoders for Perimeter Intrusion Detection

Quentin Barthélemy
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Sarah Bertrand
Laure Tougne

Résumé

In the video surveillance context, a perimeter intrusion detection system (PIDS) aims to detect the presence of an intrusion in a secured perimeter. Existing camera based approaches relies on hand crafted rules, image based classification and supervised learning. In a real world intrusion detection system, we need to learn spatio-temporalfeatures unsupervisely (as annotated data are very difficult to obtain) and use these features to detect intrusions. To tackle this problem, we propose to use a 3D convolutional autoencoder. It is inspired from the DeepFall paper where they use it for an unsupervised fall detection task. In this paper, we reproduce their results on the fall detection task and further extend this model to detect intrusions in a perimeter intrusion dataset. We also provide an extended evaluation scheme which helps to draw essential insights from the results. Our results show that we correctly reproduce the results of fall detection task and furthermore our model shows competitive performance in perimeter intrusion detection task. To our knowledge, it is the first time when a PIDS is made in a fully unsupervised manner while jointly learning the spatio-temporal features from a video-stream.
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Dates et versions

hal-03145398 , version 1 (18-02-2021)

Identifiants

Citer

Devashish Lohani, Carlos F Crispim-Junior, Quentin Barthélemy, Sarah Bertrand, Lionel Robinault, et al.. Spatio-Temporal Convolutional Autoencoders for Perimeter Intrusion Detection. Reproducible Research in Pattern Recognition (RRPR) (workshop of the 25th International Conference on Pattern Recognition), Jan 2021, Milan (virtual), Italy. ⟨10.1007/978-3-030-76423-4_4⟩. ⟨hal-03145398⟩
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