InteractionMap: Improving Online Vectorized HDMap Construction with Interaction

• URL: http://arxiv.org/abs/2503.21659v1
• Date: Thu, 27 Mar 2025 16:23:15 GMT
• Title: InteractionMap: Improving Online Vectorized HDMap Construction with Interaction
• Authors: Kuang Wu, Chuan Yang, Zhanbin Li,
• Abstract summary: State-of-the-art map vectorization methods are mainly based on DETR-like framework to generate HD maps in an end-to-end manner.<n>In this paper, we propose InteractionMap, which improves previous map vectorization methods by fully leveraging local-to-global information interaction.
• Score: 0.4551615447454768
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Vectorized high-definition (HD) maps are essential for an autonomous driving system. Recently, state-of-the-art map vectorization methods are mainly based on DETR-like framework to generate HD maps in an end-to-end manner. In this paper, we propose InteractionMap, which improves previous map vectorization methods by fully leveraging local-to-global information interaction in both time and space. Firstly, we explore enhancing DETR-like detectors by explicit position relation prior from point-level to instance-level, since map elements contain strong shape priors. Secondly, we propose a key-frame-based hierarchical temporal fusion module, which interacts temporal information from local to global. Lastly, the separate classification branch and regression branch lead to the problem of misalignment in the output distribution. We interact semantic information with geometric information by introducing a novel geometric-aware classification loss in optimization and a geometric-aware matching cost in label assignment. InteractionMap achieves state-of-the-art performance on both nuScenes and Argoverse2 benchmarks.

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