DiffLoRA: Generating Personalized Low-Rank Adaptation Weights with Diffusion

Fuente: arXiv
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Autores principales: Wu, Yujia, Shi, Yiming, Wei, Jiwei, Sun, Chengwei, Yang, Yang, Shen, Heng Tao
Formato: Preprint
Publicado: 2024
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author Wu, Yujia
Shi, Yiming
Wei, Jiwei
Sun, Chengwei
Yang, Yang
Shen, Heng Tao
author_facet Wu, Yujia
Shi, Yiming
Wei, Jiwei
Sun, Chengwei
Yang, Yang
Shen, Heng Tao
contents Personalized text-to-image generation has gained significant attention for its capability to generate high-fidelity portraits of specific identities conditioned on user-defined prompts. Existing methods typically involve test-time fine-tuning or incorporating an additional pre-trained branch. However, these approaches struggle to simultaneously address efficiency, identity fidelity, and the preservation of the model's original generative capabilities. In this paper, we propose DiffLoRA, an efficient method that leverages the diffusion model as a hypernetwork to predict personalized Low-Rank Adaptation (LoRA) weights based on the reference images. By incorporating these LoRA weights into the off-the-shelf text-to-image model, DiffLoRA enables zero-shot personalization during inference, eliminating the need for post-processing optimization. Moreover, we introduce a novel identity-oriented LoRA weights construction pipeline to facilitate the training process of DiffLoRA. The dataset generated through this pipeline enables DiffLoRA to produce consistently high-quality LoRA weights. Notably, the distinctive properties of the diffusion model enhance the generation of superior weights by employing probabilistic modeling to capture intricate structural patterns and thoroughly explore the weight space. Comprehensive experimental results demonstrate that DiffLoRA outperforms existing personalization approaches across multiple benchmarks, achieving both time efficiency and maintaining identity fidelity throughout the personalization process.
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id arxiv_https___arxiv_org_abs_2408_06740
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle DiffLoRA: Generating Personalized Low-Rank Adaptation Weights with Diffusion
Wu, Yujia
Shi, Yiming
Wei, Jiwei
Sun, Chengwei
Yang, Yang
Shen, Heng Tao
Computer Vision and Pattern Recognition
Artificial Intelligence
Personalized text-to-image generation has gained significant attention for its capability to generate high-fidelity portraits of specific identities conditioned on user-defined prompts. Existing methods typically involve test-time fine-tuning or incorporating an additional pre-trained branch. However, these approaches struggle to simultaneously address efficiency, identity fidelity, and the preservation of the model's original generative capabilities. In this paper, we propose DiffLoRA, an efficient method that leverages the diffusion model as a hypernetwork to predict personalized Low-Rank Adaptation (LoRA) weights based on the reference images. By incorporating these LoRA weights into the off-the-shelf text-to-image model, DiffLoRA enables zero-shot personalization during inference, eliminating the need for post-processing optimization. Moreover, we introduce a novel identity-oriented LoRA weights construction pipeline to facilitate the training process of DiffLoRA. The dataset generated through this pipeline enables DiffLoRA to produce consistently high-quality LoRA weights. Notably, the distinctive properties of the diffusion model enhance the generation of superior weights by employing probabilistic modeling to capture intricate structural patterns and thoroughly explore the weight space. Comprehensive experimental results demonstrate that DiffLoRA outperforms existing personalization approaches across multiple benchmarks, achieving both time efficiency and maintaining identity fidelity throughout the personalization process.
title DiffLoRA: Generating Personalized Low-Rank Adaptation Weights with Diffusion
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2408.06740