arXiv:2504.18870cs.CVcs.RO2025-04

解决复杂环境下大小货车车厢的精准自动定位问题

WLTCL: Wide Field-of-View 3-D LiDAR Truck Compartment Automatic Localization System

  • 用大视场3D LiDAR获取高密度点云,结合停车区约束分割车辆点云
  • 基于车厢几何特征精确定位角点,实现堆叠空间规划
  • 在复杂场景下定位准确且计算资源消耗低,适合物流自动化

作为物流自动化的重要组成部分,自动装载系统已成为提升作业效率与安全性的关键技术。精确的卡车货厢自动定位是自动装载的第一步。然而,现有方法难以适应不同尺寸的货厢,缺乏LiDAR与移动机械臂的统一坐标系,且在杂乱环境中可靠性不足。为此,本研究聚焦于在复杂场景中对大型、中型和小型围栏式卡车货厢的关键点实现精确自动定位。提出一种创新的宽视场3D LiDAR货厢自动定位系统。针对不同尺寸车辆,该系统利用LiDAR生成大范围视场内的高密度点云。通过引入停车区域约束,改进了点云分割方法,更有效地提取场景中的车辆点云。车厢关键点定位算法利用车厢几何特征,准确识别角点,提供可堆叠的空间区域。在自建数据集和公开数据集上的大量实验表明,该系统具备可靠的定位精度和更低的计算资源消耗,已在相关领域实现应用推广。

原文摘要 · Abstract (English)

As an essential component of logistics automation, the automated loading system is becoming a critical technology for enhancing operational efficiency and safety. Precise automatic positioning of the truck compartment, which serves as the loading area, is the primary step in automated loading. However, existing methods have difficulty adapting to truck compartments of various sizes, do not establish a unified coordinate system for LiDAR and mobile manipulators, and often exhibit reliability issues in cluttered environments. To address these limitations, our study focuses on achieving precise automatic positioning of key points in large, medium, and small fence-style truck compartments in cluttered scenarios. We propose an innovative wide field-of-view 3-D LiDAR vehicle compartment automatic localization system. For vehicles of various sizes, this system leverages the LiDAR to generate high-density point clouds within an extensive field-of-view range. By incorporating parking area constraints, our vehicle point cloud segmentation method more effectively segments vehicle point clouds within the scene. Our compartment key point positioning algorithm utilizes the geometric features of the compartments to accurately locate the corner points, providing stackable spatial regions. Extensive experiments on our collected data and public datasets demonstrate that this system offers reliable positioning accuracy and reduced computational resource consumption, leading to its application and promotion in relevant fields.

自动驾驶激光雷达定位系统物流自动化

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