Bulletin of Surveying and Mapping ›› 2026, Vol. 0 ›› Issue (5): 103-109.doi: 10.13474/j.cnki.11-2246.2026.0517

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A semantic segmentation method for urban remote sensing images based on visual state space models

CHEN Chong1, YANG Yang2   

  1. 1. Hunan Construction Technical College, Changsha 410015, China;
    2. Shanxi Institute of Surveying and Mapping Geographic Information, Taiyuan 030001, China
  • Received:2025-12-26 Published:2026-06-09

Abstract: [Purposes] To address the problems of large-scale variation,blurred boundaries,and category confusion in complex urban remote sensing images,a semantic segmentation method based on visual state space models is proposed.[Methods] A dual-branch collaborative encoder is designed to integrate global contextual information and local multi-scale features,and a cross-branch collaboration mechanism is introduced for dynamic feature interaction.A state space-driven progressive decoding strategy is employed to restore high-resolution semantic representations.[Findings] Experiments on typical urban remote sensing images of Changsha show that the proposed method achieves an overall accuracy (OA)of 91.04%,a mean intersection over union (mIoU)of 73.46%,and a mean F1-score (mF1)of 84.18%,outperforming RS3Mamba by 0.93,1.08,and 0.91 percentage points,respectively.More stable performance is observed for structural classes such as roads and buildings.[Conclusions] The results demonstrate that the proposed method effectively improves segmentation accuracy and robustness in complex urban scenes,providing a feasible technical approach for fine interpretation of high-resolution remote sensing images.

Key words: remote sensing image, semantic segmentation, visual state space model, urban scene, deep learning

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