首个针对水下机器人定位的追踪算法基准测试,提升自主控制精度。
Benchmarking Online Object Trackers for Underwater Robot Position Locking Applications
- 构建统一框架对比7种机器学习追踪算法在水下场景表现。
- 实测验证各算法在光照、浑浊度等干扰下的稳定性和误差率。
- 开源水下数据集,助力未来水下视觉导航研究。
自主控制遥控水下航行器(ROV)的位置对水下工程应用至关重要,如工业结构的检测与维护。由于水下环境存在光照变化、浑浊度高、镜头畸变(气泡导致)及洋流扰动等问题,基于视觉的水下导航与控制面临巨大挑战。本文首次系统性地对超过七种基于机器学习的一次性目标追踪算法进行统一基准测试,用于实现视觉定位锁定。所提系统通过分析目标物体前方图像,利用不同追踪算法输出结果自动校正ROV位置以应对外部干扰。我们在室内水池中使用BlueROV2平台进行了大量真实实验,清晰展示了各追踪方法的优劣。为缓解水下ROV数据稀缺问题,我们公开了采集的数据集,以促进后续研究。
原文摘要 · Abstract (English)
Autonomously controlling the position of Remotely Operated underwater Vehicles (ROVs) is of crucial importance for a wide range of underwater engineering applications, such as in the inspection and maintenance of underwater industrial structures. Consequently, studying vision-based underwater robot navigation and control has recently gained increasing attention to counter the numerous challenges faced in underwater conditions, such as lighting variability, turbidity, camera image distortions (due to bubbles), and ROV positional disturbances (due to underwater currents). In this paper, we propose (to the best of our knowledge) a first rigorous unified benchmarking of more than seven Machine Learning (ML)-based one-shot object tracking algorithms for vision-based position locking of ROV platforms. We propose a position-locking system that processes images of an object of interest in front of which the ROV must be kept stable. Then, our proposed system uses the output result of different object tracking algorithms to automatically correct the position of the ROV against external disturbances. We conducted numerous real-world experiments using a BlueROV2 platform within an indoor pool and provided clear demonstrations of the strengths and weaknesses of each tracking approach. Finally, to help alleviate the scarcity of underwater ROV data, we release our acquired data base as open-source with the hope of benefiting future research.
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