Autonomous Exploration and Mapping of Large Spaces
Hierarchical simultaneous localization and mapping is a novel method of combining topological
and feature based mapping strategies. The topological mapping process is used to organize local
feature based methods. The result is an autonomous exploration and mapping strategy that scales
well to large environments and possibly higher dimensions while confronting the issue of
obstacle avoidance. We have obtained successful results of our approach in an area spanning
5000 square meters.
Our Contribution: Hierarchical Atlas Implement a feature-based technique in a topological framework.
EKF
GVG
Kuipers & Byun
Chong & Kleeman
Simhon & Dudek
Bosse & Leonard -"Atlas"
Embedded Topological Atlas
Free Space with Topological Map (GVG) + 2 Edge-maps
Experimental Results
Odometry
Feature-maps tied to meet point locations
Local Edge-Map Example
Region of interest on the sixth floor of Wean Hall