arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2209.02207cs.ROcs.AR
收藏

用于LiDAR-Inertial里程计的因子图加速器

Factor Graph Accelerator for LiDAR-Inertial Odometry

Tianjin University(天津大学);PerceptIn(PerceptIn公司);University of Rochester(罗切斯特大学)

Yuhui Hao, Bo Yu, Qiang Liu, Shaoshan Liu, Yuhao Zhu

摘要:

因子图是一个图表示的概率分布函数的因式分解,并已被用于许多自主机器计算任务,如定位,跟踪,规划和控制等,我们正在开发一个架构的目标是使用因子图作为一个共同的抽象大多数,如果不是,所有的自主机器计算任务。如果成功,该架构将提供一个非常简单的接口,将自主机器功能映射到底层计算硬件。作为这种尝试的第一步,本文介绍了我们最近的工作,开发一个因子图加速器的激光雷达惯性里程计(LIO),在许多自主机器,如自动驾驶汽车和移动机器人的一项重要任务。通过将LIO建模为因子图,所提出的加速器不仅支持多传感器融合,如LiDAR、惯性测量单元(IMU)、GPS等,而是以批量或增量模式解决机器人导航的全局优化问题。我们的评估表明,所提出的设计显着提高了自主机器导航系统的实时性能和能源效率。初步的成功表明了将因子图体系结构推广为自治机器计算的公共抽象的潜力,包括跟踪,规划和控制等。

英文摘要:

Factor graph is a graph representing the factorization of a probability distribution function, and has been utilized in many autonomous machine computing tasks, such as localization, tracking, planning and control etc. We are developing an architecture with the goal of using factor graph as a common abstraction for most, if not, all autonomous machine computing tasks. If successful, the architecture would provide a very simple interface of mapping autonomous machine functions to the underlying compute hardware. As a first step of such an attempt, this paper presents our most recent work of developing a factor graph accelerator for LiDAR-Inertial Odometry (LIO), an essential task in many autonomous machines, such as autonomous vehicles and mobile robots. By modeling LIO as a factor graph, the proposed accelerator not only supports multi-sensor fusion such as LiDAR, inertial measurement unit (IMU), GPS, etc., but solves the global optimization problem of robot navigation in batch or incremental modes. Our evaluation demonstrates that the proposed design significantly improves the real-time performance and energy efficiency of autonomous machine navigation systems. The initial success suggests the potential of generalizing the factor graph architecture as a common abstraction for autonomous machine computing, including tracking, planning, and control etc.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑