TY - JOUR
T1 - Visual-based simultaneous localization and mapping and global positioning system correction for geo-localization of a mobile robot
AU - Berrabah, Sid Ahmed
AU - Sahli, Hichem
AU - Baudoin, Yvan
PY - 2011/12
Y1 - 2011/12
N2 - This paper introduces an approach combining visual-based simultaneous localization and mapping (V-SLAM) and global positioning system (GPS) correction for accurate multi-sensor localization of an outdoor mobile robot in geo-referenced maps. The proposed framework combines two extended Kalman filters (EKF); the first one, referred to as the integration filter, is dedicated to the improvement of the GPS localization based on data from an inertial navigation system and wheels' encoders. The second EKF implements the V-SLAM process. The linear and angular velocities in the dynamic model of the V-SLAM EKF filter are given by the GPS/INS/Encoders integration filter. On the other hand, the output of the V-SLAM EKF filter is used to update the dynamics estimation in the integration filter and therefore the geo-referenced localization. This solution increases the accuracy and the robustness of the positioning during GPS outage and allows SLAM in less featured environments.
AB - This paper introduces an approach combining visual-based simultaneous localization and mapping (V-SLAM) and global positioning system (GPS) correction for accurate multi-sensor localization of an outdoor mobile robot in geo-referenced maps. The proposed framework combines two extended Kalman filters (EKF); the first one, referred to as the integration filter, is dedicated to the improvement of the GPS localization based on data from an inertial navigation system and wheels' encoders. The second EKF implements the V-SLAM process. The linear and angular velocities in the dynamic model of the V-SLAM EKF filter are given by the GPS/INS/Encoders integration filter. On the other hand, the output of the V-SLAM EKF filter is used to update the dynamics estimation in the integration filter and therefore the geo-referenced localization. This solution increases the accuracy and the robustness of the positioning during GPS outage and allows SLAM in less featured environments.
KW - geo-localization
KW - simultaneous localization and mapping
UR - http://www.scopus.com/inward/record.url?scp=81555220153&partnerID=8YFLogxK
U2 - 10.1088/0957-0233/22/12/124003
DO - 10.1088/0957-0233/22/12/124003
M3 - Article
AN - SCOPUS:81555220153
SN - 0957-0233
VL - 22
JO - Measurement Science and Technology
JF - Measurement Science and Technology
IS - 12
M1 - 124003
ER -