用aruco标记自动标注数据,提升机器人识别鲁棒性
About an Automating Annotation Method for Robot Markers
- 利用aruco内置模块自动获取标记位置与编号,免去人工标注
- 基于自动生成数据训练的yolo模型,在模糊和失焦条件下识别率提升
- 适合需要高效标注、高精度定位的工业自动化场景
由于劳动力短缺,工厂自动化日益重要,自主移动机器人被用于物料运输等任务。机器人定位与物体识别常使用标记,如罗博杯物流联赛(RCLL)中采用的ArUco标记。传统方法依赖OpenCV图像处理检测黑白图案,但在噪声、运动模糊、离焦或光照变化下表现不佳。深度学习虽更具鲁棒性,但需大量标注数据,而标注通常需手动完成,成为数据集构建瓶颈。ArUco标记自带识别模块,可提供ID与位置信息,支持自动标注。本文提出一种基于ArUco检测结果的自动化标注方法,用于训练深度学习模型。采用该方法生成的数据训练的YOLO模型,在不同条件下的实验表明,其识别性能优于传统图像处理技术,尤其在模糊与失焦图像中表现更优。自动标注显著降低人力成本,确保标签一致性。未来将研究置信度阈值与识别性能的关系。
原文摘要 · Abstract (English)
Factory automation has become increasingly important due to labor shortages, leading to the introduction of autonomous mobile robots for tasks such as material transportation. Markers are commonly used for robot self-localization and object identification. In the RoboCup Logistics League (RCLL), ArUco markers are employed both for robot localization and for identifying processing modules. Conventional recognition relies on OpenCV-based image processing, which detects black-and-white marker patterns. However, these methods often fail under noise, motion blur, defocus, or varying illumination conditions. Deep-learning-based recognition offers improved robustness under such conditions, but requires large amounts of annotated data. Annotation must typically be done manually, as the type and position of objects cannot be detected automatically, making dataset preparation a major bottleneck. In contrast, ArUco markers include built-in recognition modules that provide both ID and positional information, enabling automatic annotation. This paper proposes an automated annotation method for training deep-learning models on ArUco marker images. By leveraging marker detection results obtained from the ArUco module, the proposed approach eliminates the need for manual labeling. A YOLO-based model is trained using the automatically annotated dataset, and its performance is evaluated under various conditions. Experimental results demonstrate that the proposed method improves recognition performance compared with conventional image-processing techniques, particularly for images affected by blur or defocus. Automatic annotation also reduces human effort and ensures consistent labeling quality. Future work will investigate the relationship between confidence thresholds and recognition performance.
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