通过追踪历史轨迹构建全局高精地图,提升感知一致性与稳定性。
HisTrackMap: Global Vectorized High-Definition Map Construction via History Map Tracking
- 基于历史轨迹的实例级栅格化表示,精细保存地图元素过往信息。
- 引入地图轨迹先验融合模块,显著改善时序连续性与平滑性。
- 提出全局视角评估指标,填补对地图几何感知质量的量化空白。
高精地图是自动驾驶系统的核心组件,提供丰富的环境信息;然而,现有方法主要依赖查询式检测框架直接建模地图元素或隐式传递查询,难以维持一致的时序感知结果,严重影响真实场景下自动驾驶与地图数据采集系统的稳定性和可靠性。为此,本文提出一种端到端的全局地图构建跟踪框架,通过时空追踪地图元素的历史轨迹解决该问题。首先,设计实例级历史栅格化地图表示,显式存储先前感知结果,实现对不同全局实例历史信息的细粒度控制。其次,在跟踪框架中引入地图-轨迹先验融合模块,利用已追踪实例的历史先验提升时序平滑性与连续性。第三,提出全局视角度量标准,用于评估高精地图中时序几何构造的质量,弥补当前缺乏对全局几何感知结果的评估手段。在nuScenes和Argoverse2数据集上的大量实验表明,所提方法在单帧与时序指标上均优于当前最先进(SOTA)方法。项目页面:https://yj772881654.github.io/HisTrackMap。
原文摘要 · Abstract (English)
As an essential component of autonomous driving systems, high-definition (HD) maps provide rich and precise environmental information for auto-driving scenarios; however, existing methods, which primarily rely on query-based detection frameworks to directly model map elements or implicitly propagate queries over time, often struggle to maintain consistent temporal perception outcomes. These inconsistencies pose significant challenges to the stability and reliability of real-world autonomous driving and map data collection systems. To address this limitation, we propose a novel end-to-end tracking framework for global map construction by temporally tracking map elements' historical trajectories. Firstly, instance-level historical rasterization map representation is designed to explicitly store previous perception results, which can control and maintain different global instances' history information in a fine-grained way. Secondly, we introduce a Map-Trajectory Prior Fusion module within this tracking framework, leveraging historical priors for tracked instances to improve temporal smoothness and continuity. Thirdly, we propose a global perspective metric to evaluate the quality of temporal geometry construction in HD maps, filling the gap in current metrics for assessing global geometric perception results. Substantial experiments on the nuScenes and Argoverse2 datasets demonstrate that the proposed method outperforms state-of-the-art (SOTA) methods in both single-frame and temporal metrics. The project page is available at: https://yj772881654.github.io/HisTrackMap.
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