Acta Geodaetica et Cartographica Sinica ›› 2022, Vol. 51 ›› Issue (5): 668-676.doi: 10.11947/j.AGCS.2022.20200540

• Photogrammetry and Remote Sensing • Previous Articles     Next Articles

Remote sensing image change detection fusion method integrating multi-scale feature attention

LIANG Zheheng, LI Xiao, DENG Peng, SHENG Sen, JIANG Fuquan   

  1. South Digital Technology Company, Guangzhou 510665, China
  • Received:2020-11-06 Revised:2021-10-31 Online:2022-05-20 Published:2022-05-28

Abstract: Deep learning technology has become the mainstream method of remote sensing image change detection research. Existing change detection methods based on deep learning mainly obtain the change characteristics of a single scale. In the real scene, the scale of the change area is diverse. Therefore, we propose a change detection method of multi-scale feature attention fusion, which solves the multi-scale problem of change detection by focusing on multi-scale fusion strategy. We take advantage of the multi-scale characteristics of the feature pyramid network, the purpose is to enable the network to learn change features in different scales; meanwhile, in order to improve receptive field of network and exploit global information, atrous convolutional spatial pyramid module is introduced at the end of the feature extraction network; In addition, when different change features are fused, the change feature fusion module is used to control information flow to reduce the difference in feature fusion; Finally, the gating mechanism is utilized to perform weighted summation of the change feature maps predicted by different scales, and a high precision change feature map is generated. The proposed method can not only obtain multi-scale change features, but also use global information and precise spatial details to improve the spatial accuracy of the predicted feature maps. Experimental results show that our method has achieved competitive results on the change detection benchmark datasets CDD and LEVIR-CD, and the recall rate has increased by 6.58% and 5.26%, respectively.

Key words: change detection, feature pyramid network, multi-scale feature, attention fusion, gating mechanism

CLC Number: