Acta Geodaetica et Cartographica Sinica ›› 2024, Vol. 53 ›› Issue (8): 1586-1597.doi: 10.11947/j.AGCS.2024.20230118

• Photogrammetry and Remote Sensing • Previous Articles     Next Articles

Weakly supervised building change detection integrating multi-scale feature fusion and spatial refinement for high resolution remote sensing images

Xin YAN1,2(), Li SHEN1,2(), Junjie PAN1,2, Yanshuai DAI1,2, Jicheng WANG3, Xiaoli ZHENG4, Zhi-lin LI1,2   

  1. 1.State-Province Joint Engineering Laboratory of Spatial Information Technology for High-Speed Railway Safety, Southwest Jiaotong University, Chengdu 611756, China
    2.Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China
    3.Key Laboratory of Ministry of Education on Land Resources Evaluation and Monitoring in Southwest China, Sichuan Normal University, Chengdu 610066, China
    4.Key Laboratory of Investigation, Monitoring, Protection and Utilization for Cultivated Land Resources, MNR, Sichuan Institute of Land Science and Technology (Sichuan Center of Satellite Application Technology), Chengdu 610045, China
  • Received:2023-04-20 Published:2024-09-25
  • Contact: Li SHEN E-mail:yxecho.swjtu@gmail.com;yxecho.swjtu@gmail.com;lishen@swjtu.edu.cn
  • About author:YAN Xin (1995—), male, PhD candidate, majors in remote sensing image information extraction. E-mail: yxecho.swjtu@gmail.com
  • Supported by:
    The National Key Research and Development Program of China(2022YFB3904202);The National Natural Science Foundation of China(42071386);Science and Technology Project from Department of Natural Resources of Sichuan Province(2023JDKY0017-3)

Abstract:

To alleviate the heavy dependence of deep learning methods on large-scale high-cost pixel-level annotations, in this paper, we propose a novel weakly supervised method, named MDF-LSR-Net, for high-resolution remote sensing building change detection. Specifically, the proposed method first designs a multi-scale difference feature aggregation module to make better use of multi-scale difference features to generate change heatmaps. Then, by utilizing the local spatial consistency of the low-level fused difference features, MDF-LSR-Net presents a local spatial refinement module to enhance the integrity and accuracy of change regions in heatmaps. Finally, the change detection model is trained based on the high-quality change heatmaps. Experimental results on publicly available datasets, including WHU and LEVIR, demonstrate that our proposed method can obtain more integral and accurate change heatmaps, leading to significantly improved detection performance of the final change detection model. The final model has achieved over 65% points in IOU and over 79% points in F1 on the WHU dataset.

Key words: high-resolution remote sensing imagery, building change detection, deep learning, weakly supervised learning, multi-scale feature fusion

CLC Number: