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Patternless Adversarial Attacks on Video Recognition Networks

2020-02-12 17:58:12
Itay Naeh, Roi Pony, Shie Mannor

Abstract

Deep neural networks for classification of videos, just like image classification networks, may be subjected to adversarial manipulation. The main difference between image classifiers and video classifiers is that the latter usually use temporal information contained within the video in the form of optical flow or implicitly by various differences between adjacent frames. In this work we present a manipulation scheme for fooling video classifiers by introducing a spatial patternless temporal perturbation that is practically unnoticed by human observers and undetectable by leading image adversarial pattern detection algorithms. After demonstrating the manipulation of action classification of single videos, we generalize the procedure to make adversarial patterns with temporal invariance that generalizes across different classes for both targeted and untargeted attacks.

Abstract (translated)

URL

https://arxiv.org/abs/2002.05123

PDF

https://arxiv.org/pdf/2002.05123.pdf


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