Title:
Square Root SAM: Simultaneous Localization and Mapping via Square Mapping Root Information Smoothing

dc.contributor.author Dellaert, Frank
dc.contributor.author Kaess, Michael
dc.contributor.corporatename Georgia Institute of Technology. Center for Robotics and Intelligent Machines
dc.contributor.corporatename Georgia Institute of Technology. College of Computing
dc.date.accessioned 2011-04-21T18:32:48Z
dc.date.available 2011-04-21T18:32:48Z
dc.date.issued 2005-06
dc.description Presented at the 2005 Robotics: Science and Systems Conference I (RSS), 8-11 June 2005, Cambridge, MA. en_US
dc.description.abstract Solving the SLAM (simultaneous localization and mapping) problem is one way to enable a robot to explore, map, and navigate in a previously unknown environment. Smoothing approaches have been investigated as a viable alternative to extended Kalman filter (EKF)- based solutions to the problem. In particular, approaches have been looked at that factorize either the associated information matrix or the measurement Jacobian into square root form. Such techniques have several significant advantages over the EKF: they are faster yet exact; they can be used in either batch or incremental mode; are better equipped to deal with non-linear process and measurement models; and yield the entire robot trajectory, at lower cost for a large class of SLAM problems. In addition, in an indirect but dramatic way, column ordering heuristics automatically exploit the locality inherent in the geographic nature of the SLAM problem. This paper presents the theory underlying these methods, along with an interpretation of factorization in terms of the graphical model associated with the SLAM problem. Both simulation results and actual SLAM experiments in large-scale environments are presented that underscore the potential of these methods as an alternative to EKF-based approaches. en_US
dc.identifier.citation Dellaert, F. & Kaess, M. (2005). “Square Root SAM: Simultaneous Localization and Mapping via Square Root Information Smoothing”. Proceedings of the 2005 Robotics: Science and Systems Conference I (RSS), 8-11 June 2005. Online. en_US
dc.identifier.uri http://hdl.handle.net/1853/38669
dc.language.iso en en_US
dc.publisher Georgia Institute of Technology en_US
dc.publisher.original MIT Press
dc.subject Graphical models en_US
dc.subject Mobile robots en_US
dc.subject SLAM en_US
dc.title Square Root SAM: Simultaneous Localization and Mapping via Square Mapping Root Information Smoothing en_US
dc.type Text
dc.type.genre Proceedings
dspace.entity.type Publication
local.contributor.author Dellaert, Frank
local.contributor.corporatename Institute for Robotics and Intelligent Machines (IRIM)
relation.isAuthorOfPublication dac80074-d9d8-4358-b6eb-397d95bdc868
relation.isOrgUnitOfPublication 66259949-abfd-45c2-9dcc-5a6f2c013bcf
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