Journal of System Simulation ›› 2026, Vol. 38 ›› Issue (5): 1303-1319.doi: 10.16182/j.issn1004731x.joss.25-0591

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Detection Method for 3D Lanes Based on Graph Relationship Optimization Integrating Point and Lane Features

Jiang Yanji1,2, Xiao Xingyi1,2, Dong Hao2,3,4, Yu Miao5, Huang Jinshan6, Liu Daqian1, Fei Bowen1   

  1. 1.School of Software, Liaoning Technical University, Huludao 125105, China
    2.OpenSafe Lab, Utcer (Jiangsu) Safety Technology Co. , Ltd, Suzhou 215100, China
    3.Suzhou Automobile Research Institute (Xiangcheng), Tsinghua University, Suzhou 215100, China
    4.School of Automotive Engineering, Suzhou University of Technology, Changshu 215500, China
    5.China FAW Group Research and Development Institute, Changchun 130000, China
    6.Engineering & Technology Department, China FAW Group Co. , Ltd, Changchun 130012, China
  • Received:2025-06-24 Revised:2025-11-11 Online:2026-05-21 Published:2026-05-29
  • Contact: Dong Hao

Abstract:

Under complex road conditions, the thin and elongated structure and small proportion of lanes lead to blurred visual features and insufficient positioning accuracy, which in turn threatens the road safety of autonomous driving. To address these issues, a 3D lane detection method or graph-based point and lane optimization network (GPLNet), based on graph relationship optimization integrating point and lane features, was proposed. Preliminary feature extraction was completed by the backbone network. 3D spatial positional coding with geometric constraints was obtained through a joint query embedding generation module. A graph relationship optimization network was utilized to perform graph relationship calculation and optimization modeling on point- and lane-level features of lanes to enhance the context awareness capability of lanes. Lane prediction and loss function calculation were achieved with a 3D prediction head. Experimental results indicate that the overall performance of the proposed method is superior to existing mainstream 3D lane detection algorithms, and the detection accuracy is higher in low-visibility lane scenarios, which verifies the effectiveness of the method.

Key words: autonomous driving, 3D lane detection, positional coding, query embedding, graph relationship optimization

CLC Number: