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Addressing Pose Uncertainty in Manipulation Planning Using Task Space Regions

机译:解决使用任务空间区域操纵计划的构成不确定性

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We present an efficient approach to generating paths for a robotic manipulator that are collision-free and guaranteed to meet task specifications despite pose uncertainty. We first describe how to use Task Space Regions (TSRs) to specify grasping and object placement tasks for a manipulator. We then show how to modify a set of TSRs for a certain task to take into account pose uncertainty. A key advantage of this approach is that if the pose uncertainty is too great to accomplish a certain task, we can quickly reject that task without invoking a planner. If the task is not rejected we run the IKBiRRT planner, which trades-off exploring the robot's C-space with sampling from TSRs to compute a path. Finally, we show several examples of a 7-DOF WAM arm planning paths in a cluttered kitchen environment where the poses of all objects are uncertain.
机译:我们提出了一种有效的方法,可以为机器人操纵器产生碰撞的路径,并且尽管存在不确定性,但尽管姿势不确定,以满足任务规范。我们首先介绍如何使用任务空间区域(TSRS)来指定机械手的掌握和对象放置任务。然后,我们展示了如何修改一组TSR,以便某项任务以考虑构成不确定性。这种方法的一个关键优势是,如果构成不确定性太大而无法完成某项任务,我们可以在不调用策划者的情况下快速拒绝该任务。如果任务未被拒绝,我们运行IKBirrt Planner,它会使用从TSRS进行采样来计算机器人的C-S空间来计算路径。最后,我们展示了一个杂乱的厨房环境中的7-DOF WAM ARM规划路径的几个例子,所有物体的姿势都不确定。

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