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4-DoF Tracking for Robot Fine Manipulation Tasks

机译:用于机器人精细操作任务的4-DoF跟踪

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摘要

This paper presents two visual trackers from the different paradigms oflearning and registration based tracking and evaluates their application inimage based visual servoing. They can track object motion with four degrees offreedom (DoF) which, as we will show here, is sufficient for many finemanipulation tasks. One of these trackers is a newly developed learning basedtracker that relies on learning discriminative correlation filters while theother is a refinement of a recent 8 DoF RANSAC based tracker adapted with a newappearance model for tracking 4 DoF motion. Both trackers are shown to provide superior performance to several state ofthe art trackers on an existing dataset for manipulation tasks. Further, a newdataset with challenging sequences for fine manipulation tasks captured fromrobot mounted eye-in-hand (EIH) cameras is also presented. These sequences havea variety of challenges encountered during real tasks including jittery cameramovement, motion blur, drastic scale changes and partial occlusions.Quantitative and qualitative results on these sequences are used to show thatthese two trackers are robust to failures while providing high precision thatmakes them suitable for such fine manipulation tasks.
机译:本文介绍了两种基于学习和注册的跟踪范式的视觉跟踪器,并评估了它们在基于图像的视觉伺服中的应用。它们可以以四个自由度(DoF)跟踪对象运动,正如我们将在此处显示的那样,这足以完成许多精细操作任务。这些跟踪器中的一个是新开发的基于学习的跟踪器,它依赖于学习判别相关滤波器,而另一个则是对最近基于8 DoF RANSAC的跟踪器的改进,该跟踪器具有用于跟踪4 DoF运动的新外观模型。两种追踪器均显示出比现有数据集上用于操作任务的多个最新追踪器更好的性能。此外,还提出了具有挑战性序列的新数据集,用于从安装在机器人上的手眼(EIH)摄像机捕获的精细操作任务。这些序列在实际任务中遇到各种挑战,包括抖动的相机运动,运动模糊,急剧的尺度变化和部分遮挡。这些序列的定量和定性结果用于表明这两个跟踪器对故障具有鲁棒性,同时提供了使其适合于故障的高精度这样的精细操作任务。

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