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Training Generative Image Super-Resolution Models by Wavelet-Domain Losses Enables Better Control of Artifacts
March 1, 2024, 5:47 a.m. | Cansu Korkmaz, A. Murat Tekalp, Zafer Dogan
cs.CV updates on arXiv.org arxiv.org
Abstract: Super-resolution (SR) is an ill-posed inverse problem, where the size of the set of feasible solutions that are consistent with a given low-resolution image is very large. Many algorithms have been proposed to find a "good" solution among the feasible solutions that strike a balance between fidelity and perceptual quality. Unfortunately, all known methods generate artifacts and hallucinations while trying to reconstruct high-frequency (HF) image details. A fundamental question is: Can a model learn to …
abstract algorithms arxiv consistent control cs.cv domain eess.iv generative good image losses low set solution solutions training type wavelet
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