arXiv:2409.15581cs.ROcs.CV2024-09ICRA被引 2

用视觉数据实现卫星对接口状态估计,支持普通相机与事件相机。

Mixing Data-driven and Geometric Models for Satellite Docking Port State Estimation using an RGB or Event Camera

  • 结合数据驱动预处理与几何模型进行状态估计
  • 事件相机在动态范围和延迟上表现更优
  • 适合需要轻量化视觉系统的空间操作任务

在轨自动化服务有望降低卫星运营成本并减少轨道碎片。为此,本文提出一种基于单目视觉数据(标准RGB或事件相机)的自动化卫星对接口检测与状态估计流程。事件相机的像素独立异步响应光变化,具有高动态范围、低功耗和低延迟等优势。本工作聚焦于卫星无关的操作(仅需对接口几何信息),以近期发布的洛克希德·马丁任务增强对接口(LM-MAP)为目标。通过浅层数据驱动方法预处理输入数据以突出LM-MAP的反射导航特征,并结合基础几何模型完成状态估计,构建了一个轻量且数据高效的独立运行管道,可分别适配RGB或事件相机。我们在包含机械臂模拟目标卫星非控运动的光电准确测试平台上采集数据,验证了该流程的有效性,并对两种模态进行了定量对比。

原文摘要 · Abstract (English)

In-orbit automated servicing is a promising path towards lowering the cost of satellite operations and reducing the amount of orbital debris. For this purpose, we present a pipeline for automated satellite docking port detection and state estimation using monocular vision data from standard RGB sensing or an event camera. Rather than taking snapshots of the environment, an event camera has independent pixels that asynchronously respond to light changes, offering advantages such as high dynamic range, low power consumption and latency, etc. This work focuses on satellite-agnostic operations (only a geometric knowledge of the actual port is required) using the recently released Lockheed Martin Mission Augmentation Port (LM-MAP) as the target. By leveraging shallow data-driven techniques to preprocess the incoming data to highlight the LM-MAP's reflective navigational aids and then using basic geometric models for state estimation, we present a lightweight and data-efficient pipeline that can be used independently with either RGB or event cameras. We demonstrate the soundness of the pipeline and perform a quantitative comparison of the two modalities based on data collected with a photometrically accurate test bench that includes a robotic arm to simulate the target satellite's uncontrolled motion.

卫星对接视觉估计事件相机

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