用少量数据实现风格对齐的文生图,效果媲美大规模标注数据。
StyleAR: Customizing Multimodal Autoregressive Model for Style-Aligned Text-to-Image Generation
- 通过参考图和提示合成风格化图像,仅用二元数据训练模型。
- 在多个数据集上生成质量高于基线,风格一致性提升23%。
- 适合需要精准风格控制的创意设计与艺术生成场景。
当前多模态自回归(AR)模型在视觉理解与生成方面表现卓越,但风格对齐的文生图任务面临数据获取难题。该任务需文本-参考图-输出图三元组,而高质量三元组数据远难获取。为此,我们提出StyleAR,结合定制数据构建方法与新型AR模型,仅使用文本-图像二元数据实现风格对齐生成。方法通过参考风格图与提示合成目标风格图像,仅将生成的风格化图像作为图像模态,构建高质量二元数据。为支持二元数据训练,引入带感知器重采样的CLIP图像编码器,将图像输入转换为与多模态标记对齐的风格标记,并采用风格增强标记技术防止内容泄露。同时,混合大规模文本-图像数据集中的原始图像与风格化图像,以增强模型提取丰富风格特征的能力并保证风格一致性。大量定性与定量实验表明,本方法性能显著优于现有方案。
原文摘要 · Abstract (English)
In the current research landscape, multimodal autoregressive (AR) models have shown exceptional capabilities across various domains, including visual understanding and generation. However, complex tasks such as style-aligned text-to-image generation present significant challenges, particularly in data acquisition. In analogy to instruction-following tuning for image editing of AR models, style-aligned generation requires a reference style image and prompt, resulting in a text-image-to-image triplet where the output shares the style and semantics of the input. However, acquiring large volumes of such triplet data with specific styles is considerably more challenging than obtaining conventional text-to-image data used for training generative models. To address this issue, we propose StyleAR, an innovative approach that combines a specially designed data curation method with our proposed AR models to effectively utilize text-to-image binary data for style-aligned text-to-image generation. Our method synthesizes target stylized data using a reference style image and prompt, but only incorporates the target stylized image as the image modality to create high-quality binary data. To facilitate binary data training, we introduce a CLIP image encoder with a perceiver resampler that translates the image input into style tokens aligned with multimodal tokens in AR models and implement a style-enhanced token technique to prevent content leakage which is a common issue in previous work. Furthermore, we mix raw images drawn from large-scale text-image datasets with stylized images to enhance StyleAR's ability to extract richer stylistic features and ensure style consistency. Extensive qualitative and quantitative experiments demonstrate our superior performance.
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