ImplicitDeepfake: Plausible Face-Swapping through Implicit Deepfake Generation using NeRF and Gaussian Splatting

• URL: http://arxiv.org/abs/2402.06390v1
• Date: Fri, 9 Feb 2024 13:11:57 GMT
• Title: ImplicitDeepfake: Plausible Face-Swapping through Implicit Deepfake Generation using NeRF and Gaussian Splatting
• Authors: Georgii Stanishevskii, Jakub Steczkiewicz, Tomasz Szczepanik, S{\l}awomir Tadeja, Jacek Tabor, Przemys{\l}aw Spurek
• Abstract summary: We show how to combine NeRFs and GS to produce plausible 3D deepfake-based avatars. Deepfake can offer a next-generation solution for avatar creation and gaming when of desirable quality.
• Score: 10.991274404360194
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Numerous emerging deep-learning techniques have had a substantial impact on computer graphics. Among the most promising breakthroughs are the recent rise of Neural Radiance Fields (NeRFs) and Gaussian Splatting (GS). NeRFs encode the object's shape and color in neural network weights using a handful of images with known camera positions to generate novel views. In contrast, GS provides accelerated training and inference without a decrease in rendering quality by encoding the object's characteristics in a collection of Gaussian distributions. These two techniques have found many use cases in spatial computing and other domains. On the other hand, the emergence of deepfake methods has sparked considerable controversy. Such techniques can have a form of artificial intelligence-generated videos that closely mimic authentic footage. Using generative models, they can modify facial features, enabling the creation of altered identities or facial expressions that exhibit a remarkably realistic appearance to a real person. Despite these controversies, deepfake can offer a next-generation solution for avatar creation and gaming when of desirable quality. To that end, we show how to combine all these emerging technologies to obtain a more plausible outcome. Our ImplicitDeepfake1 uses the classical deepfake algorithm to modify all training images separately and then train NeRF and GS on modified faces. Such relatively simple strategies can produce plausible 3D deepfake-based avatars.

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