Remote Sensing for Natural Resources >
Landslide detection in complex environments based on dual feature fusion
Received date: 2024-07-31
Revised date: 2024-10-23
Online published: 2026-06-03
Landslide disasters are frequent and widespread in southwestern China. The accurate identification and mapping of landslides using remote sensing imagery are of great significance for disaster prevention and mitigation. However,in complex environments,traditional remote sensing detection methods are often prone to misidentification due to background noise in the imagery. This paper proposed a dual-fusion landslide detection network (DLDNet) to improve landslide detection accuracy under challenging conditions. First,based on existing landslide samples,landslide simulation was conducted in complex environments using data augmentation techniques. Second,the ConvNeXt was adopted as the feature extraction backbone of DLDNet to capture more complex landslide features. Then,an attention module enhanced with deformable convolution was introduced to better focus on landslide-related information. Finally,a dual-fusion feature pyramid network (DFPN) was designed to thoroughly integrate feature information across different scales and receptive fields. The experimental results show that the proposed DLDNet achieved average precision (AP) scores of 56.9% for bounding box detection and 52.5% for segmentation,10.4 and 10.7 percentage points higher than those of the baseline model (Mask R-CNN). Compared with other landslide detection models,the DLDNet demonstrates higher detection accuracy and a lower false alarm rate. The method,characterized by accurate landslide detection in complex environments,can support rapid landslide identification and emergency response.
FANG Liuyang , YANG Changhao , SHU Dong , YANG Xuekun , CHEN Xingtong , JIA Zhiwen . Landslide detection in complex environments based on dual feature fusion[J]. Remote Sensing for Natural Resources, 2025 , 37(5) : 91 -100 . DOI: 10.6046/zrzyyg.2024259
表1 DFPN消融实验结果Tab.1 Ablation experiments results of DFPN (%) |
| 序号 | 双重 融合 | CEM | 边界框精度 | 分割精度 | ||||
|---|---|---|---|---|---|---|---|---|
| AP | AP50 | AP75 | AP | AP50 | AP75 | |||
| 实验1 | × | × | 46.5 | 83.2 | 52.3 | 41.8 | 81.4 | 42.5 |
| 实验2 | √ | × | 48.2 | 86.2 | 52.9 | 42.8 | 81.7 | 43.9 |
| 实验3 | √ | √ | 48.5 | 86.8 | 54.3 | 43.2 | 81.8 | 44.3 |
表2 DLDNet消融实验精度Tab.2 Ablation experiments results of DLDNet (%) |
| 序号 | ConvNeXt | DFPN | CBAM | DCN | 边界框精度 | 分割精度 | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| AP | AP50 | AP75 | AP | AP50 | AP75 | |||||
| 实验1 | × | × | × | × | 46.5 | 83.2 | 52.3 | 41.8 | 81.4 | 42.5 |
| 实验4 | √ | × | × | × | 54.6 | 90.2 | 62.8 | 49.7 | 89.4 | 53.0 |
| 实验5 | √ | √ | × | × | 55.8 | 90.7 | 64.9 | 50.5 | 90.1 | 54.5 |
| 实验6 | √ | √ | √ | × | 56.2 | 91.0 | 65.1 | 51.3 | 90.4 | 55.1 |
| 实验7 | √ | √ | √ | √ | 56.9 | 91.9 | 65.2 | 52.5 | 91.1 | 56.8 |
表3 DLDNet消融试验滑坡检测结果Tab.3 Landslide detection results of DLDNet ablation experiment |
| 序号 | 真实值 | 实验1 | 实验4 | 实验5 | 实验6 | 实验7 |
|---|---|---|---|---|---|---|
| a | ![]() | |||||
| b | ![]() | |||||
| c | ![]() | |||||
| d | ![]() | |||||
| e | ![]() | |||||
表4 不同模型实验结果Tab.4 Experimental results of different models (%) |
| 序号 | 方法 | 主干网络 | 边界框精度 | 分割精度 | ||||
|---|---|---|---|---|---|---|---|---|
| AP | AP50 | AP75 | AP | AP50 | AP75 | |||
| 实验7 | DLDNet | ConvNeXt-T+改进CBAM+DFPN | 56.9 | 91.9 | 65.2 | 52.5 | 91.1 | 56.8 |
| 实验8 | Faster R-CNN | ResNet101+FPN | 46.8 | 85.8 | 49.1 | — | — | — |
| 实验9 | Dynamic R-CNN | ResNet101+FPN | 50.3 | 88.6 | 55.5 | — | — | — |
| 实验10 | Cascade Mask R-CNN | ResNet101+FPN | 50.0 | 86.5 | 55.1 | 44.5 | 83.0 | 45.2 |
| 实验11 | RTMDet | CSPNeXt-T+PAFPN | 56.8 | 91.8 | 64.0 | 51.2 | 89.0 | 54.6 |
表5 不同模型滑坡检测结果Tab.5 Landslide detection results of different models |
| 序号 | 真实值 | 实验7 | 实验8 | 实验9 | 实验10 | 实验11 |
|---|---|---|---|---|---|---|
| a | ![]() | |||||
| b | ![]() | |||||
| c | ![]() | |||||
| d | ![]() | |||||
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