Fig. 2: Schematic for the forward and reverse diffusion process.
From: Probing the limits and capabilities of diffusion models for the anatomic editing of digital twins

The decoded cardiac label maps for several intermediately noised latent representations zσ. During training, a neural denoiser learns to approximate the incremental reverse process at each noise level σ. During sampling, the network is recursively applied to produce de-novo cardiac label maps.