Leveraging deepfakes to close the domain gap between real and synthetic images in facial capture pipelines

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Abstract/Contents

Abstract
From a technical standpoint, this thesis presents a framework for personalized appearance and motion capture that utilizes unsupervised deep learning in the form of deepfake technology. Notably, only a minimal amount of person-specific in-the-wild imagery is required to drive these pipelines, as we were able to effectively leverage synthetically created ground truth data during network training. Such personalized facial capture pipelines bypass issues with data diversity and bias that plague large-scale data collection and large pre-trained monolithic models, and has potential benefits beyond appearance/motion capture and retargeting. From a more general standpoint, our methods reliance on only subject-specific in-the-wild data could be leveraged to parametrize and analyze the facial motion present in videos, and be subsequently used to detect frame based video forgery (e.g. as created by deepfakes, ) which is actually the original motivation for this line of research. To paint a more complete picture of this research, I present technical details of our methodology and results, but also provide some more high-level context on deepfake detection, on our initial efforts on this work, and on some brief musings on ``lean AI as an alternative to large networks trained on massive datasets.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2022; ©2022
Publication date 2022; 2022
Issuance monographic
Language English

Creators/Contributors

Author Lin, Peng-Wen
Degree supervisor Fedkiw, Ronald P, 1968-
Thesis advisor Fedkiw, Ronald P, 1968-
Thesis advisor Liu, Cheng-Yun Karen, 1977-
Thesis advisor Yeung, Serena
Degree committee member Liu, Cheng-Yun Karen, 1977-
Degree committee member Yeung, Serena
Associated with Stanford University, Computer Science Department

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Winnie Lin.
Note Submitted to the Computer Science Department.
Thesis Thesis Ph.D. Stanford University 2022.
Location https://purl.stanford.edu/fm636jn5413

Access conditions

Copyright
© 2022 by Peng-Wen Lin
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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