arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2408.03225cs.CV
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基于线的事件相机六自由度物体姿态估计与跟踪

Line-based 6-DoF Object Pose Estimation and Tracking With an Event Camera

College of Aerospace Science and Engineering, National University of Defense Technology(国防科技大学航天科学与工程学院);ShanghaiTech University(上海科技大学)

Zibin Liu, Banglei Guan, Yang Shang, Qifeng Yu, Laurent Kneip

AI总结:

本文提出一种基于事件相机和线特征的六自由度物体姿态估计与跟踪方法,通过分支定界初始化、事件-线匹配和鲁棒距离优化实现高动态场景下的精确跟踪,并构建了事件运动物体数据集验证其性能。

摘要:

物体姿态估计与跟踪是三维视觉中的基础应用。事件相机具有高动态范围、低延迟和对运动模糊的强鲁棒性等显著特性,使其能够应对高动态范围场景或高速运动等挑战性情况。这些特性使事件相机成为标准相机在物体姿态估计方面的理想补充。本文提出了一种基于线的事件相机鲁棒姿态估计与跟踪方法,适用于平面或非平面物体。首先,我们直接从事件中提取物体线,然后使用全局最优的分支定界方法提供初始姿态,其中二维-三维线对应关系事先未知。随后,我们利用事件-线匹配建立二维事件与三维模型之间的对应关系。此外,通过最小化事件-线距离对物体姿态进行优化并持续跟踪。事件根据这些距离被赋予不同权重,并采用鲁棒估计算法。为评估所提方法在物体姿态估计与跟踪中的精度,我们设计并建立了一个基于事件的运动物体数据集。与最先进方法相比,我们的方法在合成实验和所提出的数据集上均验证了其鲁棒性和准确性。源代码可在 https://github.com/Zibin6/LOPET 获取。

英文摘要:

Pose estimation and tracking of objects is a fundamental application in 3D vision. Event cameras possess remarkable attributes such as high dynamic range, low latency, and resilience against motion blur, which enables them to address challenging high dynamic range scenes or high-speed motion. These features make event cameras an ideal complement over standard cameras for object pose estimation. In this work, we propose a line-based robust pose estimation and tracking method for planar or non-planar objects using an event camera. Firstly, we extract object lines directly from events, then provide an initial pose using a globally-optimal Branch-and-Bound approach, where 2D-3D line correspondences are not known in advance. Subsequently, we utilize event-line matching to establish correspondences between 2D events and 3D models. Furthermore, object poses are refined and continuously tracked by minimizing event-line distances. Events are assigned different weights based on these distances, employing robust estimation algorithms. To evaluate the precision of the proposed methods in object pose estimation and tracking, we have devised and established an event-based moving object dataset. Compared against state-of-the-art methods, the robustness and accuracy of our methods have been validated both on synthetic experiments and the proposed dataset. The source code is available at https://github.com/Zibin6/LOPET.

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。

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