Acta Geodaetica et Cartographica Sinica ›› 2024, Vol. 53 ›› Issue (11): 2075-2085.doi: 10.11947/j. AGCS.2024.20230582.

• Cartography and Geoinformation • Previous Articles    

Drainage pattern recognition supported by graph Transformer

Huafei YU1,2(), Tianqi QIU3, Zhe ZHOU1,2, Chongya GONG1,2, Tianyuan XIAO1,2, Min YANG1,2, Tinghua AI1,2()   

  1. 1.School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
    2.Key Laboratory of Geographic Information System, Ministry of Education, Wuhan 430079, China
    3.Guangzhou Urban Planning & Design Survey Research Institute Co., Ltd., Guangzhou 510060, China
  • Received:2023-12-20 Published:2024-12-13
  • Contact: Tinghua AI E-mail:huafeiyu@whu.edu.cn;tinghuaai@whu.edu.cn
  • About author:YU Huafei (1993—), male, postdoctor, majors in intelligent processing of map data. E-mail: huafeiyu@whu.edu.cn
  • Supported by:
    The National Natural Science Foundation of China(42401545)

Abstract:

Drainage patterns recognition is essential for analyzing terrain and geomorphology, exploring geological minerals, and transforming river network data across various scales. However, traditional spatial statistical methods based on morphological and geometric features are not robust enough. To overcome this deficiency, graph convolutional methods have emerged as a popular solution. Nevertheless, these methods often focus narrowly on local features, disregarding the crucial global perspective necessary for comprehensive analysis. To address this issue, our study proposes a drainage pattern recognition method supported by graph Transformer. This method incorporates geometric knowledge by constructing river network graph structures using dual graphs. It integrates a GraphSAGE-based local learning module and a Transformer-based global learning module, training the graph Transformer model. Experimental results demonstrate that our method achieves 94% accuracy in accurately recognizing drainage patterns by combining local segment composite features and global river network morphology features. This outperforms the 1st-ChebNet and GraphSAGE methods, presenting a promising approach for intelligent drainage pattern recognition.

Key words: drainage pattern recognition, geometric knowledge, GraphSAGE, Transformer

CLC Number: