koide3 / hdl_graph_slam

3D LIDAR-based Graph SLAM
BSD 2-Clause "Simplified" License
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Robot model drift away from Keyframe in Outdoor SLAM #134

Closed nyangshawbin closed 4 years ago

nyangshawbin commented 4 years ago

Hi @koide3 ,

Thank you for your work. May i ask why does my robot model drift away from the keyframe as time passes, though it doesnt seem like this issue is affecting the mapping either as shown in the picture below. I am currently using GICP as my registration_method. I have increased the keyframe_delta_time to 20000 as recommended in other issues. drift_error

Thank you in advance!