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Efficient Conditional Diffusion Model with Probability Flow Sampling for Image Super-resolution
April 17, 2024, 4:43 a.m. | Yutao Yuan, Chun Yuan
cs.LG updates on arXiv.org arxiv.org
Abstract: Image super-resolution is a fundamentally ill-posed problem because multiple valid high-resolution images exist for one low-resolution image. Super-resolution methods based on diffusion probabilistic models can deal with the ill-posed nature by learning the distribution of high-resolution images conditioned on low-resolution images, avoiding the problem of blurry images in PSNR-oriented methods. However, existing diffusion-based super-resolution methods have high time consumption with the use of iterative sampling, while the quality and consistency of generated images are less …
arxiv cs.cv cs.lg diffusion diffusion model flow image probability resolution sampling type
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