arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.10010cs.ROcs.CVcs.LG
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野外一次性信息机器人视觉搜索

One-Shot Informed Robotic Visual Search in the Wild

University of Toronto(多伦多大学);Vector Institute(向量研究所);McGill University(麦吉尔大学)

Karim Koreitem, Florian Shkurti, Travis Manderson, Wei-Di Chang, Juan Camilo Gamboa Higuera, Gregory Dudek

摘要:

我们认为水下机器人导航的任务,收集科学相关的视频数据的环境监测的目的。目前在非结构化自然环境中执行监测任务的大多数现场机器人通过路径跟踪预先指定的路径点序列进行导航。虽然这种导航方法通常是必要的,但它是有限的,因为机器人没有科学家认为相关的视觉观察的模型。因此,机器人既不能在视觉上搜索特定类型的对象,也不能将其注意力集中在场景中可能比预先指定的路点和视点更相关的部分上。在本文中,我们提出了一种方法,使知情的视觉导航通过学习视觉相似性算子,引导机器人的视觉搜索对部分场景,看起来像一个范例图像,这是由用户作为一个高层次的规格数据汇集。我们提出并评估了一种弱监督视频表示学习方法,该方法在水下领域的相似性任务中优于ImageNet嵌入。我们还展示了部署在知情的视觉导航协作环境监测方案中,在大规模的现场试验,机器人和人类科学家合作搜索相关的视觉内容,这种相似性操作。

英文摘要:

We consider the task of underwater robot navigation for the purpose of collecting scientifically relevant video data for environmental monitoring. The majority of field robots that currently perform monitoring tasks in unstructured natural environments navigate via path-tracking a pre-specified sequence of waypoints. Although this navigation method is often necessary, it is limiting because the robot does not have a model of what the scientist deems to be relevant visual observations. Thus, the robot can neither visually search for particular types of objects, nor focus its attention on parts of the scene that might be more relevant than the pre-specified waypoints and viewpoints. In this paper we propose a method that enables informed visual navigation via a learned visual similarity operator that guides the robot's visual search towards parts of the scene that look like an exemplar image, which is given by the user as a high-level specification for data collection. We propose and evaluate a weakly supervised video representation learning method that outperforms ImageNet embeddings for similarity tasks in the underwater domain. We also demonstrate the deployment of this similarity operator during informed visual navigation in collaborative environmental monitoring scenarios, in large-scale field trials, where the robot and a human scientist collaboratively search for relevant visual content.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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