Preserve Your Own Correlation: A Noise Prior for Video Diffusion Models

• URL: http://arxiv.org/abs/2305.10474v3
• Date: Tue, 26 Mar 2024 01:11:52 GMT
• Title: Preserve Your Own Correlation: A Noise Prior for Video Diffusion Models
• Authors: Songwei Ge, Seungjun Nah, Guilin Liu, Tyler Poon, Andrew Tao, Bryan Catanzaro, David Jacobs, Jia-Bin Huang, Ming-Yu Liu, Yogesh Balaji,
• Abstract summary: Off-the-shelf billion-scale datasets for image generation are available, but collecting similar video data of the same scale is still challenging. In this work, we explore finetuning a pretrained image diffusion model with video data as a practical solution for the video synthesis task. Our model, Preserve Your Own Correlation (PYoCo), attains SOTA zero-shot text-to-video results on the UCF-101 and MSR-VTT benchmarks.
• Score: 52.93036326078229
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Despite tremendous progress in generating high-quality images using diffusion models, synthesizing a sequence of animated frames that are both photorealistic and temporally coherent is still in its infancy. While off-the-shelf billion-scale datasets for image generation are available, collecting similar video data of the same scale is still challenging. Also, training a video diffusion model is computationally much more expensive than its image counterpart. In this work, we explore finetuning a pretrained image diffusion model with video data as a practical solution for the video synthesis task. We find that naively extending the image noise prior to video noise prior in video diffusion leads to sub-optimal performance. Our carefully designed video noise prior leads to substantially better performance. Extensive experimental validation shows that our model, Preserve Your Own Correlation (PYoCo), attains SOTA zero-shot text-to-video results on the UCF-101 and MSR-VTT benchmarks. It also achieves SOTA video generation quality on the small-scale UCF-101 benchmark with a $10\times$ smaller model using significantly less computation than the prior art.

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