The Sub-path Linear Approximation Model (SLAM) accelerates diffusion models while maintaining high-quality image generation by treating the PF-ODE trajectory as a series of sub-paths and using sub-path linear ODEs to form a progressive and continuous error estimation along each sub-path.
FRDiff leverages the temporal redundancy inherent in diffusion models to significantly reduce computation overhead while maintaining output quality through feature reuse, score mixing, and automated hyperparameter tuning.