HDDPM adapts DDPMs with a fixed Poisson-based heteroscedastic forward process and dose conditioning to improve quantitative recovery of low-count brain PET images across scanners.
arXiv:2203.08034 (2022)
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HDDPM: Heteroscedastic Denoising Diffusion Probabilistic Model for Quantitative Low-Count Brain PET Recovery
HDDPM adapts DDPMs with a fixed Poisson-based heteroscedastic forward process and dose conditioning to improve quantitative recovery of low-count brain PET images across scanners.