Spatial-Frequency Enhanced Mamba for Multi-Modal Image Fusion

Fuente: arXiv
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Autori principali: Sun, Hui, Lv, Long, Zhang, Pingping, Tang, Tongdan, Tian, Feng, Sun, Weibing, Lu, Huchuan
Natura: Preprint
Pubblicazione: 2025
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author Sun, Hui
Lv, Long
Zhang, Pingping
Tang, Tongdan
Tian, Feng
Sun, Weibing
Lu, Huchuan
author_facet Sun, Hui
Lv, Long
Zhang, Pingping
Tang, Tongdan
Tian, Feng
Sun, Weibing
Lu, Huchuan
contents Multi-Modal Image Fusion (MMIF) aims to integrate complementary image information from different modalities to produce informative images. Previous deep learning-based MMIF methods generally adopt Convolutional Neural Networks (CNNs) or Transformers for feature extraction. However, these methods deliver unsatisfactory performances due to the limited receptive field of CNNs and the high computational cost of Transformers. Recently, Mamba has demonstrated a powerful potential for modeling long-range dependencies with linear complexity, providing a promising solution to MMIF. Unfortunately, Mamba lacks full spatial and frequency perceptions, which are very important for MMIF. Moreover, employing Image Reconstruction (IR) as an auxiliary task has been proven beneficial for MMIF. However, a primary challenge is how to leverage IR efficiently and effectively. To address the above issues, we propose a novel framework named Spatial-Frequency Enhanced Mamba Fusion (SFMFusion) for MMIF. More specifically, we first propose a three-branch structure to couple MMIF and IR, which can retain complete contents from source images. Then, we propose the Spatial-Frequency Enhanced Mamba Block (SFMB), which can enhance Mamba in both spatial and frequency domains for comprehensive feature extraction. Finally, we propose the Dynamic Fusion Mamba Block (DFMB), which can be deployed across different branches for dynamic feature fusion. Extensive experiments show that our method achieves better results than most state-of-the-art methods on six MMIF datasets. The source code is available at https://github.com/SunHui1216/SFMFusion.
format Preprint
id arxiv_https___arxiv_org_abs_2511_06593
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Spatial-Frequency Enhanced Mamba for Multi-Modal Image Fusion
Sun, Hui
Lv, Long
Zhang, Pingping
Tang, Tongdan
Tian, Feng
Sun, Weibing
Lu, Huchuan
Computer Vision and Pattern Recognition
Multi-Modal Image Fusion (MMIF) aims to integrate complementary image information from different modalities to produce informative images. Previous deep learning-based MMIF methods generally adopt Convolutional Neural Networks (CNNs) or Transformers for feature extraction. However, these methods deliver unsatisfactory performances due to the limited receptive field of CNNs and the high computational cost of Transformers. Recently, Mamba has demonstrated a powerful potential for modeling long-range dependencies with linear complexity, providing a promising solution to MMIF. Unfortunately, Mamba lacks full spatial and frequency perceptions, which are very important for MMIF. Moreover, employing Image Reconstruction (IR) as an auxiliary task has been proven beneficial for MMIF. However, a primary challenge is how to leverage IR efficiently and effectively. To address the above issues, we propose a novel framework named Spatial-Frequency Enhanced Mamba Fusion (SFMFusion) for MMIF. More specifically, we first propose a three-branch structure to couple MMIF and IR, which can retain complete contents from source images. Then, we propose the Spatial-Frequency Enhanced Mamba Block (SFMB), which can enhance Mamba in both spatial and frequency domains for comprehensive feature extraction. Finally, we propose the Dynamic Fusion Mamba Block (DFMB), which can be deployed across different branches for dynamic feature fusion. Extensive experiments show that our method achieves better results than most state-of-the-art methods on six MMIF datasets. The source code is available at https://github.com/SunHui1216/SFMFusion.
title Spatial-Frequency Enhanced Mamba for Multi-Modal Image Fusion
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2511.06593