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A two level fuzzy PRM for manipulation planning

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TLDR
An algorithm which extends the probabilistic roadmap (PRM) framework to handle manipulation planning by using a two level approach, a PRM of PRMs, made possible by the introduction of a new kind of roadmap, called the fuzzy roadmap.
Abstract
This paper presents an algorithm which extends the probabilistic roadmap (PRM) framework to handle manipulation planning. This is done by using a two level approach, a PRM of PRMs. The first level builds a manipulation graph, whose nodes represent stable placements of the manipulated objects while the edges represent transfer and transit actions. The actual motion planning for the transfer and transit paths is done by PRM planners at the second level. The approach is made possible by the introduction of a new kind of roadmap, called the fuzzy roadmap. The fuzzy roadmap contains edges which are not verified by a local planner during construction. Instead, each edge is assigned a number which represents the probability that it is feasible. Later, if the edge is part of a solution path, the edge is checked for collisions. The overall effect is that our roadmaps evolve iteratively until they contain a solution. The use of fuzzy roadmaps in both levels of our manipulation planner offers many advantages. At the first level, a fuzzy roadmap represents the manipulation graph and addresses the problem of having probabilistically complete planners at the second level. At the second level, fuzzy roadmaps drastically reduce the number of collision checks. The paper contains experimental results demonstrating the feasibility and efficiency of our scheme.

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Citations
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Efficient Motion Planning for Intuitive Task Execution in Modular Manipulation Systems

TL;DR: This work introduces an instruction paradigm that goes beyond typical programming interfaces and toward a more intuitive interaction style with a robot system to achieve significant performance improvements compared to other state-of-the-art sampling-based planners.
Proceedings ArticleDOI

A general framework for PRM motion planning

TL;DR: A general framework for building and querying probabilistic roadmaps that includes all previous PRM variants as special cases and supports no, complete, or partial node and edge validation and various evaluation schedules for path validation, and enables path customization for variable, adaptive query requirements.
Journal ArticleDOI

Real-time informed path sampling for motion planning search

TL;DR: CALM, the combined adaptive locality model, is presented, along with an algorithm to bias path sampling based on the model’s predictions, which delivers a denser sampling of the free path space per unit time than open-loop sampling techniques.
Dissertation

Sampling-based Motion Planning: Analysis and Path Quality

TL;DR: The Reachability Roadmap Method is introduced which creates small roadmaps for two- and three-dimensional problems which assures low query times, low memory consumption, and the roadmap can be optimized easily and also elaborate on algorithms that successfully decrease path length.
Proceedings ArticleDOI

Pareto-optimal search over configuration space beliefs for anytime motion planning

TL;DR: POMP (Pareto Optimal Motion Planner), an anytime algorithm for geometric path planning on roadmaps, which performs comparably with RRTConnect and LazyPRM for the first feasible path, and BIT* for anytime performance, both in terms of collision checks and total planning time.
References
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Journal ArticleDOI

Probabilistic roadmaps for path planning in high-dimensional configuration spaces

TL;DR: Experimental results show that path planning can be done in a fraction of a second on a contemporary workstation (/spl ap/150 MIPS), after learning for relatively short periods of time (a few dozen seconds).
Proceedings Article

OBPRM: an obstacle-based PRM for 3D workspaces

TL;DR: This paper presents a new class of randomized path planning methods, known as Probabilistic Roadmap Methods (prms), which use randomization to construct a graph of representative paths in C-space whose vertices correspond to collision-free con gurations of the robot.
Proceedings Article

On finding narrow passages with probabilistic roadmap planners

TL;DR: Y@lBEDGF HEIKJ L„DzMPORQSIUT MV@CW2X >A@CBEDGF HeIKJRX\[^]\X,L>z]  ~Uw ’Nw2x  “eUfa3Vx=
Proceedings Article

Two manipulation planning algorithms

TL;DR: This paper addresses the motion planning problem for a robot in presence of movable objects with an overview of a general approach which consists in building a manipulation graph whose connected components characterize the existence of solutions.