AnF-DiffPET is a CT-conditioned diffusion framework for low-dose PET denoising incorporating anatomical-frequency guidance, multi-scale cross-transformer reconstruction, and frequency-contrastive hard mining, showing gains over prior CNN, GAN, transformer, and diffusion methods on four datasets.
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AnF-DiffPET: Anatomy- and Frequency-Guided Diffusion for PET/CT Denoising
AnF-DiffPET is a CT-conditioned diffusion framework for low-dose PET denoising incorporating anatomical-frequency guidance, multi-scale cross-transformer reconstruction, and frequency-contrastive hard mining, showing gains over prior CNN, GAN, transformer, and diffusion methods on four datasets.