DMFNet: Dual-Backbone Multiscale Fusion Network for Urban Scene Classification

• URL: http://arxiv.org/abs/2607.16338v1
• Date: Thu, 16 Jul 2026 10:31:32 GMT
• Title: DMFNet: Dual-Backbone Multiscale Fusion Network for Urban Scene Classification
• Abstract summary: DMFNet is a dual-backbone multiscale feature fusion framework with residual feature propagation and spatial attention for remote sensing scene classification.<n> Experiments conducted on the benchmark AID dataset demonstrate that the DMFNet achieves an average accuracy of 97.46% $pm$ 0.14%.
• Score: 1.529342790344802
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This article presents DMFNet, a dual-backbone multiscale feature fusion framework with residual feature propagation and spatial attention for remote sensing scene classification. Existing approaches often face challenges in effectively capturing multiscale feature interactions and learning robust feature representations from complex aerial scenes with high intra-class variability and inter-class similarity. To address these limitations, the proposed framework employs two pretrained backbone networks to extract diverse hierarchical feature representations. A multiscale feature fusion mechanism with residual feature propagation is introduced to enhance feature interaction across multiple resolution levels. In addition, a spatial attention module is introduced to emphasize informative spatial regions in multi-object scenes. Further, a two-stage training strategy consisting of backbone freezing followed by selective fine-tuning is adopted to ensure stable optimization and improved generalization. Experiments conducted on the benchmark AID dataset demonstrate that the DMFNet achieves an average accuracy of 97.46\% $\pm$ 0.14\%. Ablative analysis further show the importance of various components in unison.

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