Uncovering the Text Embedding in Text-to-Image Diffusion Models

• URL: http://arxiv.org/abs/2404.01154v1
• Date: Mon, 1 Apr 2024 14:59:13 GMT
• Title: Uncovering the Text Embedding in Text-to-Image Diffusion Models
• Authors: Hu Yu, Hao Luo, Fan Wang, Feng Zhao,
• Abstract summary: Text embedding, as the pivotal intermediary between text and images, remains relatively underexplored. We identify two critical insights regarding the importance of per-word embedding and their contextual correlations within text embedding. We find that text embedding inherently possesses diverse semantic potentials, and further reveal this property through the lens of singular value decomposition.
• Score: 17.108496821429494
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The correspondence between input text and the generated image exhibits opacity, wherein minor textual modifications can induce substantial deviations in the generated image. While, text embedding, as the pivotal intermediary between text and images, remains relatively underexplored. In this paper, we address this research gap by delving into the text embedding space, unleashing its capacity for controllable image editing and explicable semantic direction attributes within a learning-free framework. Specifically, we identify two critical insights regarding the importance of per-word embedding and their contextual correlations within text embedding, providing instructive principles for learning-free image editing. Additionally, we find that text embedding inherently possesses diverse semantic potentials, and further reveal this property through the lens of singular value decomposition (SVD). These uncovered properties offer practical utility for image editing and semantic discovery. More importantly, we expect the in-depth analyses and findings of the text embedding can enhance the understanding of text-to-image diffusion models.

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