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arXiv · 2411.16175

High-Resolution Be Aware! Improving the Self-Supervised Real-World Super-Resolution

Yuehan Zhang·Angela Yao
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Abstract

Self-supervised learning is crucial for super-resolution because ground-truth images are usually unavailable for real-world settings. Existing methods derive self-supervision from low-resolution images by creating pseudo-pairs or by enforcing a low-resolution reconstruction objective. These methods struggle with insufficient modeling of real-world degradations and the lack of knowledge about high-resolution imagery, resulting in unnatural super-resolved results. This paper strengthens awareness of the high-resolution image to improve the self-supervised real-world super-resolution. We propose a controller to adjust the degradation modeling based on the quality of super-resolution results. We also introduce a novel feature-alignment regularizer that directly constrains the distribution of super-resolved images. Our method finetunes the off-the-shelf SR models for a target real-world domain. Experiments show that it produces natural super-resolved images with state-of-the-art perceptual performance.

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Yuehan Zhang, Angela Yao. 2024-11-25. High-Resolution Be Aware! Improving the Self-Supervised Real-World Super-Resolution. https://arxiv.org/abs/2411.16175

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