Semantic Contextualization of Face Forgery: A New Definition, Dataset, and Detection Method

• URL: http://arxiv.org/abs/2405.08487v1
• Date: Tue, 14 May 2024 10:24:19 GMT
• Title: Semantic Contextualization of Face Forgery: A New Definition, Dataset, and Detection Method
• Authors: Mian Zou, Baosheng Yu, Yibing Zhan, Siwei Lyu, Kede Ma,
• Abstract summary: We put face forgery in a semantic context and define that computational methods that alter semantic face attributes are sources of face forgery. We construct a large face forgery image dataset, where each image is associated with a set of labels organized in a hierarchical graph. We propose a semantics-oriented face forgery detection method that captures label relations and prioritizes the primary task.
• Score: 77.65459419417533
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In recent years, deep learning has greatly streamlined the process of generating realistic fake face images. Aware of the dangers, researchers have developed various tools to spot these counterfeits. Yet none asked the fundamental question: What digital manipulations make a real photographic face image fake, while others do not? In this paper, we put face forgery in a semantic context and define that computational methods that alter semantic face attributes to exceed human discrimination thresholds are sources of face forgery. Guided by our new definition, we construct a large face forgery image dataset, where each image is associated with a set of labels organized in a hierarchical graph. Our dataset enables two new testing protocols to probe the generalization of face forgery detectors. Moreover, we propose a semantics-oriented face forgery detection method that captures label relations and prioritizes the primary task (\ie, real or fake face detection). We show that the proposed dataset successfully exposes the weaknesses of current detectors as the test set and consistently improves their generalizability as the training set. Additionally, we demonstrate the superiority of our semantics-oriented method over traditional binary and multi-class classification-based detectors.

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