MCTNet: A Multi-Scale CNN-Transformer Network for Change Detection in Optical Remote Sensing Images

• URL: http://arxiv.org/abs/2210.07601v3
• Date: Sat, 29 Jul 2023 03:13:05 GMT
• Title: MCTNet: A Multi-Scale CNN-Transformer Network for Change Detection in Optical Remote Sensing Images
• Authors: Weiming Li, Lihui Xue, Xueqian Wang, and Gang Li
• Abstract summary: We propose a hybrid network based on multi-scale CNN-transformer structure, termed MCTNet. We show that our MCTNet achieves better detection performance than existing state-of-the-art CD methods.
• Score: 7.764449276074902
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: For the task of change detection (CD) in remote sensing images, deep convolution neural networks (CNNs)-based methods have recently aggregated transformer modules to improve the capability of global feature extraction. However, they suffer degraded CD performance on small changed areas due to the simple single-scale integration of deep CNNs and transformer modules. To address this issue, we propose a hybrid network based on multi-scale CNN-transformer structure, termed MCTNet, where the multi-scale global and local information are exploited to enhance the robustness of the CD performance on changed areas with different sizes. Especially, we design the ConvTrans block to adaptively aggregate global features from transformer modules and local features from CNN layers, which provides abundant global-local features with different scales. Experimental results demonstrate that our MCTNet achieves better detection performance than existing state-of-the-art CD methods.

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