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arXiv 2402.14780cs.CV
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Customize-A-Video:文本到视频扩散模型的单样本运动定制

Customize-A-Video: One-Shot Motion Customization of Text-to-Video Diffusion Models

University of Maryland, College Park(马里兰大学帕克分校);Adobe Research(奥多比研究院);Yonsei University(延世大学)

Yixuan Ren, Yang Zhou, Jimei Yang, Jing Shi, Difan Liu, Feng Liu, Mingi Kwon, Abhinav Shrivastava

AI总结:

针对单样本视频运动定制问题,提出Customize-A-Video框架,利用时间注意力层的LoRA建模参考视频运动,并通过外观吸收器解耦时空信息,实现即插即用的定制视频生成与编辑。

摘要:

图像定制在文本到图像(T2I)扩散模型中已被广泛研究,带来了令人瞩目的成果与应用。随着文本到视频(T2V)扩散模型的出现,其时间维度的对应物——运动定制,尚未得到充分研究。为应对单样本视频运动定制的挑战,我们提出了Customize-A-Video,它从单一参考视频中建模运动,并将其适配到具有空间和时间多样性的新主体与场景中。该方法在时间注意力层上利用低秩适应(LoRA),为特定运动定制预训练的T2V扩散模型。为了在训练过程中解耦空间与时间信息,我们引入了外观吸收器(appearance absorbers)的新概念,在运动学习之前将参考视频的原始外观剥离。所提出的模块在分阶段流水线中训练,并以即插即用的方式进行推断,从而能够轻松扩展到各种下游任务,如定制视频生成与编辑、视频外观定制以及多运动组合。我们的项目页面可在 https://customize-a-video.github.io 找到。

英文摘要:

Image customization has been extensively studied in text-to-image (T2I) diffusion models, leading to impressive outcomes and applications. With the emergence of text-to-video (T2V) diffusion models, its temporal counterpart, motion customization, has not yet been well investigated. To address the challenge of one-shot video motion customization, we propose Customize-A-Video that models the motion from a single reference video and adapts it to new subjects and scenes with both spatial and temporal varieties. It leverages low-rank adaptation (LoRA) on temporal attention layers to tailor the pre-trained T2V diffusion model for specific motion modeling. To disentangle the spatial and temporal information during training, we introduce a novel concept of appearance absorbers that detach the original appearance from the reference video prior to motion learning. The proposed modules are trained in a staged pipeline and inferred in a plug-and-play fashion, enabling easy extensions to various downstream tasks such as custom video generation and editing, video appearance customization and multiple motion combination. Our project page can be found at https://customize-a-video.github.io.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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