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Apr, 2024
基于双层引导扩散模型的零样本医学成像逆问题
Bi-level Guided Diffusion Models for Zero-Shot Medical Imaging Inverse Problems
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Hossein Askari, Fred Roosta, Hongfu Sun
TL;DR
通过双层引导策略有效地引导初始无条件预测,并通过外层近端优化目标加强测量一致性,BGDM相对于基线方法在生成高保真医学图像方面更加有效和高效,显著减少了严重退化情况下的幻觉性伪影。
Abstract
In the realm of medical imaging,
inverse problems
aim to infer high-quality images from incomplete, noisy measurements, with the objective of minimizing expenses and risks to patients in clinical settings. The
diffusion
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