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- W4283706543 abstract "We show that pre-trained Generative Adversarial Networks (GANs) such as StyleGAN and BigGAN can be used as a latent bank to improve the performance of image super-resolution. While most existing perceptual-oriented approaches attempt to generate realistic outputs through learning with adversarial loss, our method, <b>G</b>enerative <b>L</b>at<b>E</b>nt b<b>AN</b>k (GLEAN), goes beyond existing practices by directly leveraging rich and diverse priors encapsulated in a pre-trained GAN. But unlike prevalent GAN inversion methods that require expensive image-specific optimization at runtime, our approach only needs a single forward pass for restoration. GLEAN can be easily incorporated in a simple encoder-bank-decoder architecture with multi-resolution skip connections. Employing priors from different generative models allows GLEAN to be applied to diverse categories (<i>e.g.</i>, human faces, cats, buildings, and cars). We further present a lightweight version of GLEAN, named LightGLEAN, which retains only the critical components in GLEAN. Notably, LightGLEAN consists of only 21% of parameters and 35% of FLOPs while achieving comparable image quality. We extend our method to different tasks including image colorization and blind image restoration, and extensive experiments show that our proposed models perform favorably in comparison to existing methods. Codes and models are available at <uri>https://github.com/open-mmlab/mmediting</uri>." @default.
- W4283706543 created "2022-06-30" @default.
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- W4283706543 date "2022-01-01" @default.
- W4283706543 modified "2023-10-17" @default.
- W4283706543 title "GLEAN: Generative Latent Bank for Image Super-Resolution and Beyond" @default.
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- W4283706543 doi "https://doi.org/10.1109/tpami.2022.3186715" @default.
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