MiM-DiT: MoE in MoE with Diffusion Transformers for All-in-One Image Restoration

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Hauptverfasser: Kong, Lingshun, Zhang, Jiawei, Duan, Zhengpeng, Wu, Xiaohe, Yang, Yueqi, Wang, Xiaotao, Zou, Dongqing, Lei, Lei, Pan, Jinshan
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Veröffentlicht: 2026
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author Kong, Lingshun
Zhang, Jiawei
Duan, Zhengpeng
Wu, Xiaohe
Yang, Yueqi
Wang, Xiaotao
Zou, Dongqing
Lei, Lei
Pan, Jinshan
author_facet Kong, Lingshun
Zhang, Jiawei
Duan, Zhengpeng
Wu, Xiaohe
Yang, Yueqi
Wang, Xiaotao
Zou, Dongqing
Lei, Lei
Pan, Jinshan
contents All-in-one image restoration is challenging because different degradation types, such as haze, blur, noise, and low-light, impose diverse requirements on restoration strategies, making it difficult for a single model to handle them effectively. In this paper, we propose a unified image restoration framework that integrates a dual-level Mixture-of-Experts (MoE) architecture with a pretrained diffusion model. The framework operates at two levels: the Inter-MoE layer adaptively combines expert groups to handle major degradation types, while the Intra-MoE layer further selects specialized sub-experts to address fine-grained variations within each type. This design enables the model to achieve coarse-grained adaptation across diverse degradation categories while performing fine-grained modulation for specific intra-class variations, ensuring both high specialization in handling complex, real-world corruptions. Extensive experiments demonstrate that the proposed method performs favorably against the state-of-the-art approaches on multiple image restoration task.
format Preprint
id arxiv_https___arxiv_org_abs_2603_02710
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle MiM-DiT: MoE in MoE with Diffusion Transformers for All-in-One Image Restoration
Kong, Lingshun
Zhang, Jiawei
Duan, Zhengpeng
Wu, Xiaohe
Yang, Yueqi
Wang, Xiaotao
Zou, Dongqing
Lei, Lei
Pan, Jinshan
Computer Vision and Pattern Recognition
All-in-one image restoration is challenging because different degradation types, such as haze, blur, noise, and low-light, impose diverse requirements on restoration strategies, making it difficult for a single model to handle them effectively. In this paper, we propose a unified image restoration framework that integrates a dual-level Mixture-of-Experts (MoE) architecture with a pretrained diffusion model. The framework operates at two levels: the Inter-MoE layer adaptively combines expert groups to handle major degradation types, while the Intra-MoE layer further selects specialized sub-experts to address fine-grained variations within each type. This design enables the model to achieve coarse-grained adaptation across diverse degradation categories while performing fine-grained modulation for specific intra-class variations, ensuring both high specialization in handling complex, real-world corruptions. Extensive experiments demonstrate that the proposed method performs favorably against the state-of-the-art approaches on multiple image restoration task.
title MiM-DiT: MoE in MoE with Diffusion Transformers for All-in-One Image Restoration
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2603.02710