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Contributing Data to Deepfake Detection Research
Tuesday, September 24, 2019
Posted by Nick Dufour, Google Research and Andrew Gully, Jigsaw
Deep learning has given rise to technologies that would have been thought impossible only a handful of years ago. Modern generative models are one example of these, capable of synthesizing hyperrealistic images, speech, music, and even video. These models have found use in a wide variety of applications, including making the world
more accessible through text-to-speech
, and helping
generate training data for medical imaging
.
Like any transformative technology, this has created new challenges. So-called "
deepfakes
"—produced by deep generative models that can manipulate video and audio clips—are one of these. Since their first appearance in late 2017, many open-source deepfake generation methods have emerged, leading to a growing number of synthesized media clips. While many are likely intended to be humorous, others could be harmful to individuals and society.
Google considers these issues seriously. As we published in our
AI Principles
last year, we are committed to developing AI best practices to mitigate the potential for harm and abuse. Last January, we announced our release of a
dataset of synthetic speech
in support of an
international challenge
to develop high-performance fake audio detectors. The dataset was downloaded by more than 150 research and industry organizations as part of the challenge, and is now freely available to the public.
Today, in collaboration with
Jigsaw
, we're announcing the release of a large dataset of visual deepfakes we've produced that has been incorporated into the Technical University of Munich and the University Federico II of Naples’ new
FaceForensics benchmark
, an effort that Google co-sponsors. The incorporation of these data into the FaceForensics video benchmark is in partnership with leading researchers, including
Prof. Matthias Niessner
,
Prof. Luisa Verdoliva
and the
FaceForensics team
.
You can download the data on the
FaceForensics github page
.
A sample of videos from Google’s contribution to the FaceForensics benchmark. To generate these, pairs of actors were selected randomly and deep neural networks swapped the face of one actor onto the head of another.
To make this dataset, over the past year we worked with paid and consenting actors to record hundreds of videos. Using publicly available deepfake generation methods, we then created thousands of deepfakes from these videos. The resulting videos, real and fake, comprise our contribution, which we created to directly support deepfake detection efforts. As part of the FaceForensics benchmark, this dataset is now available, free to the research community, for use in developing synthetic video detection methods.
Actors were filmed in a variety of scenes. Some of these actors are pictured here (top) with an example deepfake (bottom), which can be a subtle or drastic change, depending on the other actor used to create them.
Since the field is moving quickly, we'll add to this dataset as deepfake technology evolves over time, and we’ll continue to work with partners in this space. We firmly believe in supporting a thriving research community around mitigating potential harms from misuses of synthetic media, and today's release of our deepfake dataset in the FaceForensics benchmark is an important step in that direction.
Acknowledgements
Special thanks to all our team members and collaborators who work on this project with us: Daisy Stanton, Per Karlsson, Alexey Vorobyov, Thomas Leung, Jeremiah "Spudde" Childs, Avneesh Sud, Christoph Bregler, Andreas Roessler, Davide Cozzolino, Justus Thies, Luisa Verdoliva, Matthias Niessner, and the hard-working actors and film crew who helped make this dataset possible.
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