Skip to yearly menu bar Skip to main content


Poster

Training-free Composite Scene Generation for Layout-to-Image Synthesis

Jiaqi Liu · Tao Huang · Chang Xu

Strong blind review: This paper was not made available on public preprint services during the review process Strong Double Blind
[ ]
Thu 3 Oct 1:30 a.m. PDT — 3:30 a.m. PDT

Abstract:

Recent breakthroughs in text-to-image diffusion models have significantly advanced the generation of high-fidelity, photo-realistic images from textual descriptions. Yet, these models often struggle with interpreting spatial arrangements from text, hindering their ability to produce images with precise spatial configurations. To bridge this gap, layout-to-image generation has emerged as a promising direction. However, training-based approaches are limited by the need for extensively annotated datasets, leading to high data acquisition costs and a constrained conceptual scope. Conversely, training-free methods face challenges in accurately locating and generating semantically similar objects within complex compositions. This paper introduces a novel training-free approach designed to overcome adversarial semantic intersections during the diffusion conditioning phase. By refining intra-token loss with selective sampling and enhancing the diffusion process with attention redistribution, we propose two innovative constraints: 1) an inter-token constraint that resolves token conflicts to ensure accurate concept synthesis; and 2) a self-attention constraint that improves pixel-to-pixel relationships, enhancing the fidelity and complexity of generated images. Our evaluations confirm the effectiveness of leveraging layout information for guiding the diffusion process, generating content-rich images with enhanced fidelity and complexity.

Live content is unavailable. Log in and register to view live content