"Improved Vector Quantized Diffusion Models. (arXiv:2205.16007v2 [cs.CV] UPDATED)" — Two techniques to improve the sample quality of VQ-Diffusion. 1) Explore classifier-free guidance sampling for discrete denoising diffusion models to propose a more general and effective implementation of classifier-free guidance. 2) Use a high-quality inference strategy to alleviate the joint distribution issue in VQ-Diffusion.

Paper: http://arxiv.org/abs/2205.16007
Code: https://github.com/microsoft/vq-diffusion
Demos: https://huggingface.co/spaces/patrickvonplaten/vq-vs-stable-diffusion
https://huggingface.co/spaces/williamberman/vq-diffusion

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