arXiv:2410.00769cs.CV2024-10

用深度学习从航拍图自动生成高精地图,准确率超96%。

DeepAerialMapper: Deep Learning-based Semi-automatic HD Map Creation for Highly Automated Vehicles

  • 用神经网络对航拍图进行语义分割,识别车道线和路缘
  • 自动映射车道线与路缘的召回率和精确率均超96%
  • 输出标准格式,适合自动驾驶系统直接使用

高精地图在高度自动化车辆的研发、安全验证与运行中至关重要。高效采集道路段传感器数据并从中获取精准地图是高精地图构建的核心挑战。现有方法如专用测量车和车队众包数据常受限于商业可行性。尽管高分辨率航拍影像成本低廉甚至免费,但将其转化为地图仍需大量人工操作。本文提出一种基于深度学习的半自动高精地图生成方法,通过训练神经网络对航拍图像进行语义分割,提取与高精地图相关的类别信息,再经分层后处理生成可见道路要素的原型地图。地图以Lanelet2格式导出,便于后续扩展与标准工具集成。为训练与评估,我们基于德国城市道路段的公开航拍影像构建了数据集。实验表明,车道线与道路边界的自动映射在召回率与精确率上均超过96%。方法源码已公开于https://github.com/RobertKrajewski/DeepAerialMapper。

原文摘要 · Abstract (English)

High-definition maps (HD maps) play a crucial role in the development, safety validation, and operation of highly automated vehicles. Efficiently collecting up-to-date sensor data from road segments and obtaining accurate maps from these are key challenges in HD map creation. Commonly used methods, such as dedicated measurement vehicles and crowd-sourced data from series vehicles, often face limitations in commercial viability. Although high-resolution aerial imagery offers a cost-effective or even free alternative, it requires significant manual effort and time to transform it into maps. In this paper, we introduce a semi-automatic method for creating HD maps from high-resolution aerial imagery. Our method involves training neural networks to semantically segment aerial images into classes relevant to HD maps. The resulting segmentation is then hierarchically post-processed to generate a prototypical HD map of visible road elements. Exporting the map to the Lanelet2 format allows easy extension for different use cases using standard tools. To train and evaluate our method, we created a dataset using public aerial imagery of urban road segments in Germany. In our evaluation, we achieved an automatic mapping of lane markings and road borders with a recall and precision exceeding 96%. The source code for our method is publicly available at https://github.com/RobertKrajewski/DeepAerialMapper.

高精地图深度学习航拍图像自动驾驶

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