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arXiv 2212.04488cs.CVcs.GRcs.LG
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文本到图像扩散模型的多概念定制

Multi-Concept Customization of Text-to-Image Diffusion

Carnegie Mellon University(卡内基梅隆大学);Tsinghua University(清华大学);Adobe Research(奥多比研究院)

Nupur Kumari, Bingliang Zhang, Richard Zhang, Eli Shechtman, Jun-Yan Zhu

AI总结:

本文提出Custom Diffusion方法,通过仅优化少量条件参数实现快速多概念定制,支持联合训练或合并模型,高效生成新概念组合。

摘要:

虽然生成模型能够从大规模数据库中学习概念并生成高质量的图像,但用户通常希望合成自己特定概念(例如,他们的家庭、宠物或物品)的实例。我们能否教会模型在给定少量示例的情况下快速获取新概念?此外,我们能否将多个新概念组合在一起?我们提出了Custom Diffusion,一种用于增强现有文本到图像模型的高效方法。我们发现,仅优化文本到图像条件机制中的少量参数,就足以表示新概念,同时实现快速调优(约6分钟)。此外,我们可以联合训练多个概念,或通过闭式约束优化将多个微调模型合并为一个。我们的微调模型能够生成多个新概念的变体,并将它们无缝地组合到新颖场景中的现有概念中。在定性和定量评估中,我们的方法在多个基线和同期工作中表现优于或持平,同时具有内存和计算效率。

英文摘要:

While generative models produce high-quality images of concepts learned from a large-scale database, a user often wishes to synthesize instantiations of their own concepts (for example, their family, pets, or items). Can we teach a model to quickly acquire a new concept, given a few examples? Furthermore, can we compose multiple new concepts together? We propose Custom Diffusion, an efficient method for augmenting existing text-to-image models. We find that only optimizing a few parameters in the text-to-image conditioning mechanism is sufficiently powerful to represent new concepts while enabling fast tuning (~6 minutes). Additionally, we can jointly train for multiple concepts or combine multiple fine-tuned models into one via closed-form constrained optimization. Our fine-tuned model generates variations of multiple new concepts and seamlessly composes them with existing concepts in novel settings. Our method outperforms or performs on par with several baselines and concurrent works in both qualitative and quantitative evaluations while being memory and computationally efficient.

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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