PET-Adapter adapts phantom-pretrained generative models for superior full-angle and limited-angle PET reconstruction at test time via layer-wise low-rank anatomical conditioning and OSEM warm-starting that cuts diffusion steps from 50 to 2.
Physics in Medicine & Biology69(15), 155019 (2024)
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PET-Adapter: Test-Time Domain Adaptation for Full and Limited-Angle PET Image Reconstruction
PET-Adapter adapts phantom-pretrained generative models for superior full-angle and limited-angle PET reconstruction at test time via layer-wise low-rank anatomical conditioning and OSEM warm-starting that cuts diffusion steps from 50 to 2.