Stereo Event-based, 6-DOF Pose Tracking for Uncooperative Spacecraft

• URL: http://arxiv.org/abs/2503.12732v1
• Date: Mon, 17 Mar 2025 01:51:00 GMT
• Title: Stereo Event-based, 6-DOF Pose Tracking for Uncooperative Spacecraft
• Authors: Zibin Liu, Banglei Guan, Yang Shang, Yifei Bian, Pengju Sun, Qifeng Yu,
• Abstract summary: Event cameras possess numerous advantages, such as high dynamic range, high temporal resolution, and low power consumption.<n>We propose a line-based pose tracking method for uncooperative spacecraft utilizing a stereo event camera.
• Score: 6.1580246529916725
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Pose tracking of uncooperative spacecraft is an essential technology for space exploration and on-orbit servicing, which remains an open problem. Event cameras possess numerous advantages, such as high dynamic range, high temporal resolution, and low power consumption. These attributes hold the promise of overcoming challenges encountered by conventional cameras, including motion blur and extreme illumination, among others. To address the standard on-orbit observation missions, we propose a line-based pose tracking method for uncooperative spacecraft utilizing a stereo event camera. To begin with, we estimate the wireframe model of uncooperative spacecraft, leveraging the spatio-temporal consistency of stereo event streams for line-based reconstruction. Then, we develop an effective strategy to establish correspondences between events and projected lines of uncooperative spacecraft. Using these correspondences, we formulate the pose tracking as a continuous optimization process over 6-DOF motion parameters, achieved by minimizing event-line distances. Moreover, we construct a stereo event-based uncooperative spacecraft motion dataset, encompassing both simulated and real events. The proposed method is quantitatively evaluated through experiments conducted on our self-collected dataset, demonstrating an improvement in terms of effectiveness and accuracy over competing methods. The code will be open-sourced at https://github.com/Zibin6/SE6PT.

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