Jichang Yang

Absorbing Quantization Error by Deformable Noise Scheduler for Diffusion Models

Diffusion models deliver state-of-the-art image quality but are expensive to deploy. Post-training quantization (PTQ) can shrink models and speed up inference, yet residual quantization errors distort the diffusion distribution (the timestep-wise marginal over $\vx_t$), degrading sample quality. We …