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High-Fidelity Generative Image Compression
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We extensively study how to combine Generative Adversarial Networks and learned compression to obtain a state-of-the-art generative lossy compression system. In particular, we investigate normalization layers, generator and discriminator architectures, training strategies, as well as perceptual losses. In contrast to previous work, i) we obtain visually pleasing reconstructions that are perceptually similar to the input, ii) we operate in a broad range of bitrates, and iii) our approach can be applied to high-resolution images. We bridge the gap between rate-distortion-perception theory and practice by evaluating our approach both quantitatively with various perceptual metrics, and with a user study. The study shows that our method is preferred to previous approaches even if they use more than 2x the bitrate.
Forward citations
Cited by 3 Pith papers
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Exploring Autoregressive Vision Foundation Models for Image Compression
Pretrained autoregressive vision foundation models can be repurposed directly as image entropy coders, delivering competitive perceptual quality at very low bitrates with no fine-tuning.
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Fast Training-free Perceptual Image Compression
A noise-then-denoise decoder with a pre-trained diffusion model turns any existing codec into a fast, training-free perceptual codec with a KL-divergence guarantee and 0.1-10s decoding.
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