Adjusting Initial Noise to Mitigate Memorization in Text-to-Image Diffusion Models

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Hauptverfasser: Han, Hyeonggeun, Kim, Sehwan, Joo, Hyungjun, Hong, Sangwoo, Lee, Jungwoo
Format: Preprint
Veröffentlicht: 2025
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author Han, Hyeonggeun
Kim, Sehwan
Joo, Hyungjun
Hong, Sangwoo
Lee, Jungwoo
author_facet Han, Hyeonggeun
Kim, Sehwan
Joo, Hyungjun
Hong, Sangwoo
Lee, Jungwoo
contents Despite their impressive generative capabilities, text-to-image diffusion models often memorize and replicate training data, prompting serious concerns over privacy and copyright. Recent work has attributed this memorization to an attraction basin-a region where applying classifier-free guidance (CFG) steers the denoising trajectory toward memorized outputs-and has proposed deferring CFG application until the denoising trajectory escapes this basin. However, such delays often result in non-memorized images that are poorly aligned with the input prompts, highlighting the need to promote earlier escape so that CFG can be applied sooner in the denoising process. In this work, we show that the initial noise sample plays a crucial role in determining when this escape occurs. We empirically observe that different initial samples lead to varying escape times. Building on this insight, we propose two mitigation strategies that adjust the initial noise-either collectively or individually-to find and utilize initial samples that encourage earlier basin escape. These approaches significantly reduce memorization while preserving image-text alignment.
format Preprint
id arxiv_https___arxiv_org_abs_2510_08625
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Adjusting Initial Noise to Mitigate Memorization in Text-to-Image Diffusion Models
Han, Hyeonggeun
Kim, Sehwan
Joo, Hyungjun
Hong, Sangwoo
Lee, Jungwoo
Computer Vision and Pattern Recognition
Despite their impressive generative capabilities, text-to-image diffusion models often memorize and replicate training data, prompting serious concerns over privacy and copyright. Recent work has attributed this memorization to an attraction basin-a region where applying classifier-free guidance (CFG) steers the denoising trajectory toward memorized outputs-and has proposed deferring CFG application until the denoising trajectory escapes this basin. However, such delays often result in non-memorized images that are poorly aligned with the input prompts, highlighting the need to promote earlier escape so that CFG can be applied sooner in the denoising process. In this work, we show that the initial noise sample plays a crucial role in determining when this escape occurs. We empirically observe that different initial samples lead to varying escape times. Building on this insight, we propose two mitigation strategies that adjust the initial noise-either collectively or individually-to find and utilize initial samples that encourage earlier basin escape. These approaches significantly reduce memorization while preserving image-text alignment.
title Adjusting Initial Noise to Mitigate Memorization in Text-to-Image Diffusion Models
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2510.08625