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2014-06-14 13:58:07 -0500 asked a question Comparison between two maps


I used Openratslam to generate the trajectory of a car and i want to compare it with the ground truth generated by an IMU/GPS. Could you help me in comparing the semi metric topological map generated by ratslam with the metric map generated by the gps? is there a way to evaluate the precision of the map generated by Openratslam?

Any suggestion will be helpful

Thank you


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2014-05-01 01:42:54 -0500 asked a question Visual SLAM Challenges


Could anyone help me in choosing a subject for my master thesis in Visual Slam..what are the current challenges in visual slam? i read about several methods (slam based on filters,slam based on sfm and bundle adjustment, biologically inspired slam...) and i realised that there is indeed a big advancement in this field so i wanna ask if there still some challenges in visual slam that could present a problem for my thesis.. Any suggestion will be highly appreciated

Thank you

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2014-03-05 23:12:04 -0500 asked a question Real-time localization with vision only SLAM

Hi, I am working on the implementation in an embedded system of a vision only SLAM algorithm. I have then to pick an algorithm ensuring efficiency and precison. I read about algorithms (EKF SLAM, FASTSLAM, GraphSLAM..) and i found that the literature contains so many approaches..For the EKF version, I found the approach of Davidson implementating a real-time EKF vision only SLAM..I wanna ask if there are approaches of graphslam or fastslam using only cameras (no odometry) and ensuring a real-time localization of a robot? Thank you for your help.