Integrated task and motion planning in belief space
Open Access
- 15 July 2013
- journal article
- Published by SAGE Publications in The International Journal of Robotics Research
- Vol. 32 (9-10), 1194-1227
- https://doi.org/10.1177/0278364913484072
Abstract
We describe an integrated strategy for planning, perception, state estimation and action in complex mobile manipulation domains based on planning in the belief space of probability distributions over states using hierarchical goal regression (pre-image back-chaining). We develop a vocabulary of logical expressions that describe sets of belief states, which are goals and subgoals in the planning process. We show that a relatively small set of symbolic operators can give rise to task-oriented perception in support of the manipulation goals. An implementation of this method is demonstrated in simulation and on a real PR2 robot, showing robust, flexible solution of mobile manipulation problems with multiple objects and substantial uncertainty.Keywords
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