Axial-Relation Guided Fusion State Space Model for Optical-Elevation Sensing Image Segmentation

Fuente: arXiv
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Main Authors: Gao, Feng, Jin, Zhilin, Gan, Yanhai, Dong, Junyu, Du, Qian
Format: Preprint
Published: 2026
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author Gao, Feng
Jin, Zhilin
Gan, Yanhai
Dong, Junyu
Du, Qian
author_facet Gao, Feng
Jin, Zhilin
Gan, Yanhai
Dong, Junyu
Du, Qian
contents Semantic segmentation of multi-source remote sensing images is a fundamental task for Earth observation applications. Existing methods often struggle with insufficient multi-scale context modeling and suboptimal cross-modal feature fusion, limiting their performance in complex high-resolution scenes. To this end, we propose Axial-Relation Guided Fusion Mamba (ARG-Mamba), a state space model-based framework for optical-elevation remote sensing image segmentation. Specifically, we introduce a Multi-Scale State Space Module to capture both fine-grained local details and global contextual dependencies with linear computational complexity. Moreover, an Axial-Relation Guided Fusion Module is designed to explicitly model global cross-modal correlations along horizontal and vertical axes, enabling efficient feature fusion between optical and elevation modalities. Extensive experiments conducted on the ISPRS Vaihingen and Potsdam datasets demonstrate that our ARG-Mamba consistently outperforms state-of-the-art methods while maintaining favorable computational efficiency. The code will be made publicly available at \url{https://github.com/oucailab/ARG-Mamba}.
format Preprint
id arxiv_https___arxiv_org_abs_2605_16768
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Axial-Relation Guided Fusion State Space Model for Optical-Elevation Sensing Image Segmentation
Gao, Feng
Jin, Zhilin
Gan, Yanhai
Dong, Junyu
Du, Qian
Computer Vision and Pattern Recognition
Image and Video Processing
Semantic segmentation of multi-source remote sensing images is a fundamental task for Earth observation applications. Existing methods often struggle with insufficient multi-scale context modeling and suboptimal cross-modal feature fusion, limiting their performance in complex high-resolution scenes. To this end, we propose Axial-Relation Guided Fusion Mamba (ARG-Mamba), a state space model-based framework for optical-elevation remote sensing image segmentation. Specifically, we introduce a Multi-Scale State Space Module to capture both fine-grained local details and global contextual dependencies with linear computational complexity. Moreover, an Axial-Relation Guided Fusion Module is designed to explicitly model global cross-modal correlations along horizontal and vertical axes, enabling efficient feature fusion between optical and elevation modalities. Extensive experiments conducted on the ISPRS Vaihingen and Potsdam datasets demonstrate that our ARG-Mamba consistently outperforms state-of-the-art methods while maintaining favorable computational efficiency. The code will be made publicly available at \url{https://github.com/oucailab/ARG-Mamba}.
title Axial-Relation Guided Fusion State Space Model for Optical-Elevation Sensing Image Segmentation
topic Computer Vision and Pattern Recognition
Image and Video Processing
url https://arxiv.org/abs/2605.16768