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- W4320199890 abstract "Recent GAN inversion models focus on preserving image-specific details through various methods, e.g., generator tuning or feature mixing. While those are helpful for preserving details compared to a naiive low-rate latent inversion, they still fail to maintain high-frequency features precisely. In this paper, we point out that the existing GAN inversion models have inherent limitations in both structural and training aspects, which preclude the delicate reconstruction of high-frequency features. Especially, we prove that the widely-used loss term in GAN inversion, i.e., L2, is biased to reconstruct low-frequency features mainly. To overcome this problem, we propose a novel GAN inversion model, coined WaGI, which enables to handle high-frequency features explicitly, by using a novel wavelet-based loss term and a newly proposed wavelet fusion scheme. To the best of our knowledge, WaGI is the first attempt to interpret GAN inversion in the frequency domain. We demonstrate that WaGI shows outstanding results on both inversion and editing, compared to the existing state-of-the-art GAN inversion models. Especially, WaGI robustly preserves high-frequency features of images even in the editing scenario. We will release our code with the pre-trained model after the review." @default.
- W4320199890 created "2023-02-13" @default.
- W4320199890 creator A5031148632 @default.
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- W4320199890 date "2022-10-18" @default.
- W4320199890 modified "2023-09-23" @default.
- W4320199890 title "WaGI : Wavelet-based GAN Inversion for Preserving High-frequency Image Details" @default.
- W4320199890 doi "https://doi.org/10.48550/arxiv.2210.09655" @default.
- W4320199890 hasPublicationYear "2022" @default.
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