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arXiv 1706.04652cs.ROcs.AI
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使用模拟深度图像学习用于真实世界机器人抓取的视觉控制器

Learning a visuomotor controller for real world robotic grasping using simulated depth images

Northeastern University(东北大学);Boston University(波士顿大学)

Ulrich Viereck, Andreas ten Pas, Kate Saenko, Robert Platt

摘要:

我们希望建造在非结构化现实世界应用中有用的机器人,例如在家庭中工作。特别是抓握是这一领域的一项重要技能,但它仍然是一个挑战。关键障碍之一是处理被抓取物体的意外变化或运动以及机器人中的运动噪声或其他错误。本文提出了一种方法来学习一个闭环控制器的机器人抓持,动态引导夹持器的对象。我们使用一个手腕上安装的传感器来获取深度图像在前面的抓地力和训练的卷积神经网络学习的距离函数,以真正掌握配置的图像。训练传感器数据是在模拟中生成的,这是以前使用真实机器人经验的工作的一个主要优势,因为获得真实机器人经验的成本很高。尽管在模拟中进行了训练,但我们的方法在真实的噪声传感器图像上效果良好。我们比较我们的控制器在模拟和真实的机器人实验中的一个强大的基线把握姿势检测,并发现我们的方法显着优于基线的运动噪声,感知误差和干扰的对象在把握过程中的存在。

英文摘要:

We want to build robots that are useful in unstructured real world applications, such as doing work in the household. Grasping in particular is an important skill in this domain, yet it remains a challenge. One of the key hurdles is handling unexpected changes or motion in the objects being grasped and kinematic noise or other errors in the robot. This paper proposes an approach to learning a closed-loop controller for robotic grasping that dynamically guides the gripper to the object. We use a wrist-mounted sensor to acquire depth images in front of the gripper and train a convolutional neural network to learn a distance function to true grasps for grasp configurations over an image. The training sensor data is generated in simulation, a major advantage over previous work that uses real robot experience, which is costly to obtain. Despite being trained in simulation, our approach works well on real noisy sensor images. We compare our controller in simulated and real robot experiments to a strong baseline for grasp pose detection, and find that our approach significantly outperforms the baseline in the presence of kinematic noise, perceptual errors and disturbances of the object during grasping.

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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