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DiffiT: Diffusion Vision Transformers for Image Generation

Official PyTorch implementation of DiffiT: Diffusion Vision Transformers for Image Generation.

Code and pretrained DiffiT models will be released soon !

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DiffiT achieves a new SOTA FID score of 1.73 on ImageNet-256 dataset !

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In addition, DiffiT sets a new SOTA FID score of 2.22 on FFHQ-64 dataset !

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We introduce a new Time-dependent Multihead Self-Attention (TMSA) mechanism that jointly learns spatial and temporal dependencies and allows for attention conditioning with finegrained control.

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Benchmarks

Latent Space

ImageNet-256

ModelDatasetResolutionFID-50KInception Score
Latent DiffiTImageNet256x2561.73276.49

ImageNet-512

ModelDatasetResolutionFID-50KInception Score
Latent DiffiTImageNet512x5122.67252.12

Image Space

ModelDatasetResolutionFID-50K
DiffiTCIFAR-1032x321.95
DiffiTFFHQ-6464x642.22

Citation

@article{hatamizadeh2023diffit,
  title={Diffit: Diffusion vision transformers for image generation},
  author={Hatamizadeh, Ali and Song, Jiaming and Liu, Guilin and Kautz, Jan and Vahdat, Arash},
  journal={arXiv preprint arXiv:2312.02139},
  year={2023}
}

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