arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.02075cs.RO
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走向虚实方向性语义把握

Toward Sim-to-Real Directional Semantic Grasping

NVIDIA(英伟达);University of Southern California(南加州大学)

Shariq Iqbal, Jonathan Tremblay, Thang To, Jia Cheng, Erik Leitch, Andy Campbell, Kirby Leung, Duncan McKay, Stan Birchfield

摘要:

我们解决了方向性语义把握的问题,即从一个特定的方向把握一个特定的对象。我们通过双深度Q网络(DDQN)使用深度强化学习来解决这个问题,该网络学习将来自手腕安装的摄像头的下采样RGB输入图像映射到Q值,然后通过交叉熵方法(CEM)将其转换为笛卡尔机器人控制命令。该网络完全基于自定义机器人模拟器生成的模拟数据进行学习,该模拟器对物理现实(接触)和感知质量(高质量渲染)进行建模。使用域随机化来弥合现实差距。该系统是从多个预定义的以对象为中心的取向(诸如从侧面或顶部)端到端(将输入单目RGB图像映射到输出笛卡尔运动命令)抓取对象的示例。我们在模拟和现实世界中显示出有希望的结果,以及面临的一些挑战和未来在这一领域的研究的需要。

英文摘要:

We address the problem of directional semantic grasping, that is, grasping a specific object from a specific direction. We approach the problem using deep reinforcement learning via a double deep Q-network (DDQN) that learns to map downsampled RGB input images from a wrist-mounted camera to Q-values, which are then translated into Cartesian robot control commands via the cross-entropy method (CEM). The network is learned entirely on simulated data generated by a custom robot simulator that models both physical reality (contacts) and perceptual quality (high-quality rendering). The reality gap is bridged using domain randomization. The system is an example of end-to-end (mapping input monocular RGB images to output Cartesian motor commands) grasping of objects from multiple pre-defined object-centric orientations, such as from the side or top. We show promising results in both simulation and the real world, along with some challenges faced and the need for future research in this area.

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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