Improving Diffusion Model Efficiency Through Patching
2022-07-09Code Available1· sign in to hype
Troy Luhman, Eric Luhman
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- github.com/ericl122333/patchdiffusion-pytorchOfficialIn paperpytorch★ 114
- github.com/ericl122333/patchdiffusion-tfOfficialIn papertf★ 0
- github.com/deepxuan/dn-dppytorch★ 75
Abstract
Diffusion models are a powerful class of generative models that iteratively denoise samples to produce data. While many works have focused on the number of iterations in this sampling procedure, few have focused on the cost of each iteration. We find that adding a simple ViT-style patching transformation can considerably reduce a diffusion model's sampling time and memory usage. We justify our approach both through an analysis of the diffusion model objective, and through empirical experiments on LSUN Church, ImageNet 256, and FFHQ 1024. We provide implementations in Tensorflow and Pytorch.