(2018.08.17 16:00pm N202)Chee Yap:Soft Resolution-Exact Path Planning in Robotics: Theory and Practice
Time：2018-08-15 Source：KLMM
Title： Soft Resolution-Exact Path Planning in Robotics: Theory and Practice
Speaker： Chee Yap,( Courant Institute, NYU)
Time&Venue： 2018.08.17 16:00pm N202
Abstract:： Path planning is a fundamental problem in robotics. We design path planners based on three foundations:
(1) The notion of ``resolution-exact'' planners.
(2) Use of ``soft predicates'' to achieve resolution-exactness.
(3) A feature-based technique for constructing soft predicates.
We formulate an algorithmic framework called ``Soft Subdivision Search'' (SSS) that incorporates these foundation. There are many parallels between our framework and the well-known Probabilistic Roadmap (PRM) framework.
Both frameworks lead to algorithms that are
* practical
* easy to implement
* flexible and extensible
* with adaptive and local complexity
But compared to PRM and previous resolution work, SSS confers strong theoretical guarantees, including halting.
In a series of papers starting in 2013, we demonstrated the power of these ideas by producing planners for plane robots with 2, 3 and 4 degrees of freedom (DOFs) that outperform the state-of-art planars based on sampling. Most recently, we produced planners for two spatial robots (rod and ring) with 5 DOFs that are competitive with state-of-art planners. We unify these by an general axiomatic theory that include subdivision in non-Euclidean configuration spaces, Joint work with Y.-J.Chiang, B.Curto, J.-M.Lien, Z.Luo, J.P.Ryan, C.Wang, B.Zhou.
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