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U-VAP: User-specified Visual Appearance Personalization via Decoupled Self Augmentation

You Wu · Kean Liu · Xiaoyue Mi · Fan Tang · Juan Cao · Jintao Li

Arch 4A-E Poster #454
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Wed 19 Jun 5 p.m. PDT — 6:30 p.m. PDT


Concept personalization methods enable large text-to-image models to learn specific subjects (e.g., objects/poses/3D models) and synthesize renditions in new contexts. Given that the image references are highly biased towards visual attributes, state-of-the-art personalization models tend to overfit the whole subject and cannot disentangle visual characteristics in pixel space. In this study, we proposed a more challenging setting, namely fine-grained visual appearance personalization. Different from existing methods, we allow users to provide a sentence describing the desired attributes. A novel decoupled self-augmentation strategy is proposed to generate target-related and non-target samples to learn user-specified visual attributes. These augmented data allow for refining the model's understanding of the target attribute while mitigating the impact of unrelated attributes. At the inference stage, adjustments are conducted on semantic space through the learned target and non-target embeddings to further enhance the disentanglement of target attributes. Extensive experiments on various kinds of visual attributes with SOTA personalization methods shows the ability of the proposed method to mimic target attributes in novel contexts, thus improving the controllability and flexibility of personalization.

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