Fast Prompt Alignment for Text-to-Image Generation

• URL: http://arxiv.org/abs/2412.08639v1
• Date: Wed, 11 Dec 2024 18:58:41 GMT
• Title: Fast Prompt Alignment for Text-to-Image Generation
• Authors: Khalil Mrini, Hanlin Lu, Linjie Yang, Weilin Huang, Heng Wang,
• Abstract summary: This paper introduces Fast Prompt Alignment (FPA), a prompt optimization framework that leverages a one-pass approach. FPA uses large language models (LLMs) for single-iteration prompt paraphrasing, followed by fine-tuning or in-context learning with optimized prompts. FPA achieves competitive text-image alignment scores at a fraction of the processing time.
• Score: 28.66112701912297
• License:
• Abstract: Text-to-image generation has advanced rapidly, yet aligning complex textual prompts with generated visuals remains challenging, especially with intricate object relationships and fine-grained details. This paper introduces Fast Prompt Alignment (FPA), a prompt optimization framework that leverages a one-pass approach, enhancing text-to-image alignment efficiency without the iterative overhead typical of current methods like OPT2I. FPA uses large language models (LLMs) for single-iteration prompt paraphrasing, followed by fine-tuning or in-context learning with optimized prompts to enable real-time inference, reducing computational demands while preserving alignment fidelity. Extensive evaluations on the COCO Captions and PartiPrompts datasets demonstrate that FPA achieves competitive text-image alignment scores at a fraction of the processing time, as validated through both automated metrics (TIFA, VQA) and human evaluation. A human study with expert annotators further reveals a strong correlation between human alignment judgments and automated scores, underscoring the robustness of FPA's improvements. The proposed method showcases a scalable, efficient alternative to iterative prompt optimization, enabling broader applicability in real-time, high-demand settings. The codebase is provided to facilitate further research: https://github.com/tiktok/fast_prompt_alignment

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