论文标题
FlowBot3D：学习3D铰接流动以操纵铰接式物体
FlowBot3D: Learning 3D Articulation Flow to Manipulate Articulated Objects
论文作者
论文摘要
我们探索一种新的方法来感知和操纵3D铰接式物体，该物体概括以使机器人能够阐明看不见的物体类别。我们提出了一个基于视觉的系统，该系统学会预测各种铰接物体的各个部分的潜在运动，以指导系统的下游运动计划以表达对象。为了预测对象运动，我们训练一个神经网络，以输出一个密集的向量场，代表点云中点云中点的点运动方向。然后，我们根据此向量领域部署一个分析运动计划者，以实现产生最大发音的政策。我们完全在模拟中训练视觉系统，并演示了系统在模拟和现实世界中概括的对象实例和新颖类别的能力，并将我们的政策部署在没有任何填充的锯耶机器人上。结果表明，我们的系统在模拟和现实世界实验中都可以实现最先进的性能。
We explore a novel method to perceive and manipulate 3D articulated objects that generalizes to enable a robot to articulate unseen classes of objects. We propose a vision-based system that learns to predict the potential motions of the parts of a variety of articulated objects to guide downstream motion planning of the system to articulate the objects. To predict the object motions, we train a neural network to output a dense vector field representing the point-wise motion direction of the points in the point cloud under articulation. We then deploy an analytical motion planner based on this vector field to achieve a policy that yields maximum articulation. We train the vision system entirely in simulation, and we demonstrate the capability of our system to generalize to unseen object instances and novel categories in both simulation and the real world, deploying our policy on a Sawyer robot with no finetuning. Results show that our system achieves state-of-the-art performance in both simulated and real-world experiments.
