LegoPET is a diffusion model conditioned on hierarchical features from a learned U-Net, improving sinogram-to-PET reconstruction metrics on simulated brain data.
Contrastive diffusion model with auxiliary guidance for coarse-to-fine pet reconstruction
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LegoPET: Hierarchical Feature Guided Conditional Diffusion for PET Image Reconstruction
LegoPET is a diffusion model conditioned on hierarchical features from a learned U-Net, improving sinogram-to-PET reconstruction metrics on simulated brain data.