TopoStreamer: Temporal Lane Segment Topology Reasoning in Autonomous Driving

• URL: http://arxiv.org/abs/2507.00709v2
• Date: Sun, 20 Jul 2025 08:35:35 GMT
• Title: TopoStreamer: Temporal Lane Segment Topology Reasoning in Autonomous Driving
• Authors: Yiming Yang, Yueru Luo, Bingkun He, Hongbin Lin, Suzhong Fu, Chao Zheng, Zhipeng Cao, Erlong Li, Chao Yan, Shuguang Cui, Zhen Li,
• Abstract summary: TopoStreamer is an end-to-end temporal perception model for lane segment topology reasoning.<n>TopoStreamer introduces three key improvements: streaming attribute constraints, dynamic lane boundary positional encoding, and lane segment denoising.<n>On the Open-Lane-V2 dataset, TopoStreamer demonstrates significant improvements over state-of-the-art methods.
• Score: 52.25176274203747
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Lane segment topology reasoning constructs a comprehensive road network by capturing the topological relationships between lane segments and their semantic types. This enables end-to-end autonomous driving systems to perform road-dependent maneuvers such as turning and lane changing. However, the limitations in consistent positional embedding and temporal multiple attribute learning in existing methods hinder accurate roadnet reconstruction. To address these issues, we propose TopoStreamer, an end-to-end temporal perception model for lane segment topology reasoning. Specifically, TopoStreamer introduces three key improvements: streaming attribute constraints, dynamic lane boundary positional encoding, and lane segment denoising. The streaming attribute constraints enforce temporal consistency in both centerline and boundary coordinates, along with their classifications. Meanwhile, dynamic lane boundary positional encoding enhances the learning of up-to-date positional information within queries, while lane segment denoising helps capture diverse lane segment patterns, ultimately improving model performance. Additionally, we assess the accuracy of existing models using a lane boundary classification metric, which serves as a crucial measure for lane-changing scenarios in autonomous driving. On the OpenLane-V2 dataset, TopoStreamer demonstrates significant improvements over state-of-the-art methods, achieving substantial performance gains of +3.0% mAP in lane segment perception and +1.7% OLS in centerline perception tasks.

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