SketchFlex: Facilitating Spatial-Semantic Coherence in Text-to-Image Generation with Region-Based Sketches

• URL: http://arxiv.org/abs/2502.07556v1
• Date: Tue, 11 Feb 2025 13:48:11 GMT
• Title: SketchFlex: Facilitating Spatial-Semantic Coherence in Text-to-Image Generation with Region-Based Sketches
• Authors: Haichuan Lin, Yilin Ye, Jiazhi Xia, Wei Zeng,
• Abstract summary: SketchFlex is an interactive system designed to improve the flexibility of spatially conditioned image generation. It infers user prompts with rational descriptions within a semantic space enriched by crowd-sourced object attributes and relationships. It refines users' rough sketches into canny-based shape anchors, ensuring the generation quality and alignment of user intentions.
• Score: 4.55322003438174
• License:
• Abstract: Text-to-image models can generate visually appealing images from text descriptions. Efforts have been devoted to improving model controls with prompt tuning and spatial conditioning. However, our formative study highlights the challenges for non-expert users in crafting appropriate prompts and specifying fine-grained spatial conditions (e.g., depth or canny references) to generate semantically cohesive images, especially when multiple objects are involved. In response, we introduce SketchFlex, an interactive system designed to improve the flexibility of spatially conditioned image generation using rough region sketches. The system automatically infers user prompts with rational descriptions within a semantic space enriched by crowd-sourced object attributes and relationships. Additionally, SketchFlex refines users' rough sketches into canny-based shape anchors, ensuring the generation quality and alignment of user intentions. Experimental results demonstrate that SketchFlex achieves more cohesive image generations than end-to-end models, meanwhile significantly reducing cognitive load and better matching user intentions compared to region-based generation baseline.

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