Evaluation of an Audio-Video Multimodal Deepfake Dataset using Unimodal and Multimodal Detectors

• URL: http://arxiv.org/abs/2109.02993v1
• Date: Tue, 7 Sep 2021 11:00:20 GMT
• Title: Evaluation of an Audio-Video Multimodal Deepfake Dataset using Unimodal and Multimodal Detectors
• Authors: Hasam Khalid and Minha Kim and Shahroz Tariq and Simon S. Woo
• Abstract summary: Deepfakes can cause security and privacy issues. New domain of cloning human voices using deep-learning technologies is also emerging. To develop a good deepfake detector, we need a detector that can detect deepfakes of multiple modalities.
• Score: 18.862258543488355
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Significant advancements made in the generation of deepfakes have caused security and privacy issues. Attackers can easily impersonate a person's identity in an image by replacing his face with the target person's face. Moreover, a new domain of cloning human voices using deep-learning technologies is also emerging. Now, an attacker can generate realistic cloned voices of humans using only a few seconds of audio of the target person. With the emerging threat of potential harm deepfakes can cause, researchers have proposed deepfake detection methods. However, they only focus on detecting a single modality, i.e., either video or audio. On the other hand, to develop a good deepfake detector that can cope with the recent advancements in deepfake generation, we need to have a detector that can detect deepfakes of multiple modalities, i.e., videos and audios. To build such a detector, we need a dataset that contains video and respective audio deepfakes. We were able to find a most recent deepfake dataset, Audio-Video Multimodal Deepfake Detection Dataset (FakeAVCeleb), that contains not only deepfake videos but synthesized fake audios as well. We used this multimodal deepfake dataset and performed detailed baseline experiments using state-of-the-art unimodal, ensemble-based, and multimodal detection methods to evaluate it. We conclude through detailed experimentation that unimodals, addressing only a single modality, video or audio, do not perform well compared to ensemble-based methods. Whereas purely multimodal-based baselines provide the worst performance.

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