Aug 2026
Count-aware diffusion with autoregressive inference for low-count PET reconstruction enhancement.
Low-count positron emission tomography (PET) reduces injected activity or acquisition time, but fewer detected coincidence events compromise image quality and quantitative reliability. Existing diffusion-based PET enhancement methods commonly use generic, count-agnostic Gaussian schedules that do not explicitly represe...
Yunlong Gao, Xingyu Xie, Hong-mei Tang et al.
· Medical Image Analysis · 0 citations