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arXiv 2401.01827cs.CV

Moonshot:迈向基于多模态条件的可控视频生成与编辑

Moonshot: Towards Controllable Video Generation and Editing with Multimodal Conditions

Salesforce Research(赛富时研究院);Show Lab, National University of Singapore(新加坡国立大学Show Lab)

David Junhao Zhang, Dongxu Li, Hung Le, Mike Zheng Shou, Caiming Xiong, Doyen Sahoo

AI总结:

提出Moonshot视频生成模型,通过多模态视频块(MVB)同时处理图像和文本输入,并无训练开销地集成ControlNet,显著提升了视频视觉质量与时间一致性,支持多种可控生成与编辑应用。

摘要:

大多数现有的视频扩散模型(VDMs)仅限于文本条件。因此,它们通常缺乏对生成视频的视觉外观和几何结构的控制。本研究提出了Moonshot,一种新的视频生成模型,同时以图像和文本的多模态输入为条件。该模型构建于一个核心模块,称为多模态视频块(MVB),它由用于表示视频特征的传统时空层,以及一个解耦的交叉注意力层组成,后者用于处理图像和文本输入以进行外观条件化。此外,我们精心设计了模型架构,使其能够选择性地与预训练的图像ControlNet模块集成以提供几何视觉条件,而与现有方法不同,无需额外的训练开销。实验表明,凭借通用的多模态条件机制,与现有模型相比,Moonshot在视觉质量和时间一致性上展现出显著提升。此外,该模型可轻松适配于多种生成应用,如个性化视频生成、图像动画和视频编辑,展现了其作为可控视频生成基础架构的潜力。模型将在https://github.com/salesforce/LAVIS上公开。

英文摘要:

Most existing video diffusion models (VDMs) are limited to mere text conditions. Thereby, they are usually lacking in control over visual appearance and geometry structure of the generated videos. This work presents Moonshot, a new video generation model that conditions simultaneously on multimodal inputs of image and text. The model builts upon a core module, called multimodal video block (MVB), which consists of conventional spatialtemporal layers for representing video features, and a decoupled cross-attention layer to address image and text inputs for appearance conditioning. In addition, we carefully design the model architecture such that it can optionally integrate with pre-trained image ControlNet modules for geometry visual conditions, without needing of extra training overhead as opposed to prior methods. Experiments show that with versatile multimodal conditioning mechanisms, Moonshot demonstrates significant improvement on visual quality and temporal consistency compared to existing models. In addition, the model can be easily repurposed for a variety of generative applications, such as personalized video generation, image animation and video editing, unveiling its potential to serve as a fundamental architecture for controllable video generation. Models will be made public on https://github.com/salesforce/LAVIS.

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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