Bird-SR outperforms prior super-resolution methods on real images by guiding diffusion trajectories with bidirectional rewards, early structure optimization on synthetic pairs, and later perceptual rewards with dynamic balancing.
Ntire 2017 challenge on single image super-resolution: Dataset and study
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Bird-SR: Bidirectional Reward-Guided Diffusion for Real-World Image Super-Resolution
Bird-SR outperforms prior super-resolution methods on real images by guiding diffusion trajectories with bidirectional rewards, early structure optimization on synthetic pairs, and later perceptual rewards with dynamic balancing.