CultureCLIP: Empowering CLIP with Cultural Awareness through Synthetic Images and Contextualized Captions

• URL: http://arxiv.org/abs/2507.06210v2
• Date: Wed, 16 Jul 2025 07:01:50 GMT
• Title: CultureCLIP: Empowering CLIP with Cultural Awareness through Synthetic Images and Contextualized Captions
• Authors: Yuchen Huang, Zhiyuan Fan, Zhitao He, Sandeep Polisetty, Wenyan Li, Yi R. Fung,
• Abstract summary: Pretrained vision-language models (VLMs) excel in general multimodal comprehension but often struggle to capture nuanced, context-dependent visual cues.<n>We design a data curation pipeline leveraging open-sourced VLMs and text-to-image models to construct CulTwin, a synthetic cultural dataset.<n>Then, we fine-tune CLIP on CulTwin to develop CultureCLIP, which aligns cultural concepts with contextually enhanced captions and synthetic images.
• Score: 4.149285362505653
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Pretrained vision-language models (VLMs) such as CLIP excel in general multimodal comprehension but often struggle to capture nuanced, context-dependent visual cues. This makes it difficult to distinguish between similar-looking concepts with potentially different cultural meanings. Such deficiencies are mainly due to a limited amount of high-quality cultural data, contextual information, and the lack of negative examples that highlight subtle differences. To mitigate this, we design a data curation pipeline leveraging open-sourced VLMs and text-to-image models to construct CulTwin, a synthetic cultural dataset. This dataset consists of paired concept-caption-image triplets, where concepts visually resemble each other but are culturally different. Then, we fine-tune CLIP on CulTwin to develop CultureCLIP, which aligns cultural concepts with contextually enhanced captions and synthetic images through tailored contrastive learning. Experiments on culture-specific benchmarks show that CultureCLIP outperforms the base CLIP, achieving up to a notable 5.49% improvement in fine-grained concept recognition on certain tasks while preserving CLIP's original generalization ability, validating the effectiveness of our data synthesis and VLM backbone training paradigm in capturing subtle cultural distinctions.

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