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UniHDA:用于多模态混合域自适应的统一且多功能的框架

UniHDA: A Unified and Versatile Framework for Multi-Modal Hybrid Domain Adaptation

Zhejiang University(浙江大学);Fabu Inc.(发步公司);Ningbo Port(宁波港)

Hengjia Li, Yang Liu, Yuqi Lin, Zhanwei Zhang, Yibo Zhao, weihang Pan, Tu Zheng, Zheng Yang, Yuchun Jiang, Boxi Wu, Deng Cai

AI总结:

本文提出UniHDA框架,利用CLIP编码器统一多模态参考并线性插值方向向量,实现多目标域混合自适应,并通过跨域空间结构损失保持源域一致性,适用于多种生成器。

摘要:

近年来,生成式域自适应取得了显著进展,使我们能够将预训练的生成器适应到新的目标域。然而,现有方法仅将生成器适应到单一目标域,并且局限于单一模态,要么是文本驱动的,要么是图像驱动的。此外,它们无法与源域保持良好的一致性,这阻碍了多样性的继承。在本文中,我们提出了UniHDA,一个用于生成式混合域自适应的统一且多功能的框架,该框架支持来自多个域的多模态参考。我们使用CLIP编码器将多模态参考投影到一个统一的嵌入空间,然后线性插值来自多个目标域的方向向量以实现混合域自适应。为了确保与源域的一致性,我们提出了一种新颖的跨域空间结构(CSS)损失,该损失保持源生成器和目标生成器之间的详细空间结构信息。实验表明,适应后的生成器能够合成具有各种属性组合的真实图像。此外,我们的框架是生成器无关的,并且适用于多种生成器,例如StyleGAN、EG3D和扩散模型。

英文摘要:

Recently, generative domain adaptation has achieved remarkable progress, enabling us to adapt a pre-trained generator to a new target domain. However, existing methods simply adapt the generator to a single target domain and are limited to a single modality, either text-driven or image-driven. Moreover, they cannot maintain well consistency with the source domain, which impedes the inheritance of the diversity. In this paper, we propose UniHDA, a \textbf{unified} and \textbf{versatile} framework for generative hybrid domain adaptation with multi-modal references from multiple domains. We use CLIP encoder to project multi-modal references into a unified embedding space and then linearly interpolate the direction vectors from multiple target domains to achieve hybrid domain adaptation. To ensure \textbf{consistency} with the source domain, we propose a novel cross-domain spatial structure (CSS) loss that maintains detailed spatial structure information between source and target generator. Experiments show that the adapted generator can synthesise realistic images with various attribute compositions. Additionally, our framework is generator-agnostic and versatile to multiple generators, e.g., StyleGAN, EG3D, and Diffusion Models.

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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