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arXiv · 2503.17794

Progressive Prompt Detailing for Improved Alignment in Text-to-Image Generative Models

Ketan Suhaas Saichandran·Xavier Thomas·Prakhar Kaushik·Deepti Ghadiyaram
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Abstract

Text-to-image generative models often struggle with long prompts detailing complex scenes, diverse objects with distinct visual characteristics and spatial relationships. In this work, we propose SCoPE (Scheduled interpolation of Coarse-to-fine Prompt Embeddings), a training-free method to improve text-to-image alignment by progressively refining the input prompt in a coarse-to-fine-grained manner. Given a detailed input prompt, we first decompose it into multiple sub-prompts which evolve from describing broad scene layout to highly intricate details. During inference, we interpolate between these sub-prompts and thus progressively introduce finer-grained details into the generated image. Our training-free plug-and-play approach significantly enhances prompt alignment, achieves an average improvement of more than +8 in Visual Question Answering (VQA) scores over the Stable Diffusion baselines on 83% of the prompts from the GenAI-Bench dataset.

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Ketan Suhaas Saichandran, Xavier Thomas, Prakhar Kaushik, Deepti Ghadiyaram. 2025-03-22. Progressive Prompt Detailing for Improved Alignment in Text-to-Image Generative Models. https://arxiv.org/abs/2503.17794

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