Who is driving this deepfake? Beyond Deepfake Detection with Driver Identification
Résumé
The rapid advancement of deepfake technology has raised significant concerns about the authenticity of digital media and its potential misuse. While much progress has been made in developing methods to detect whether a video is fake or not, a critical question remains: Can we go one step further? What additional information can be derived once a deepfake is identified? Beyond merely flagging manipulated content, understanding the source of the manipulation holds significant value for forensics and investigation. This paper addresses one aspect of this challenge by demonstrating how to recover information from the driving video, i.e., the input video guiding the deepfake generation, to identify the person acting in the driving video (suspected driver). By learning facial expressions and movements unique to a suspected driver, we can identify which deepfake has been generated using videos of the suspected driver in a pool of deepfakes. While the current limitation of this work implies having a large quantity of data concerning your suspected identity, this work proves the feasibility of deducing information on driving videos directly from the deepfakes. Code available at: https://github.com/Thiresias/BRT-driver-identification
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