Denoising diffusion models have emerged as the go-to framework for solving inverse problems in imaging. A critical concern regarding these models is their performance on out-of-distribution (OOD) tasks, which remains an under-explored challenge. Realistic reconstructions inconsistent with the measured data can be generated, hallucinating image features that are uniquely present in the training dataset. To simultaneously enforce data-consistency and leverage data-driven priors, we introduce a novel sampling framework called Steerable Conditional Diffusion. This framework adapts the denoising network specifically to the available measured data. Utilising our proposed method, we achieve substantial enhancements in OOD performance across diverse imaging modalities, advancing the robust deployment of denoising diffusion models in real-world applications.

我们介绍了一种名为可控条件扩散的新型采样框架，它将去噪扩散模型与可用的测量数据相结合，实现了对多样的成像模态下的离群任务的显著改进，推动了去噪扩散模型在实际应用中的鲁棒部署。

图像逆问题中的可导条件扩散对于离域自适应