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nutonomy / nuscenes-devkit

The devkit of the nuScenes dataset.
https://www.nuScenes.org
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[Help Wanted] Get map elements pose #1103

Closed bjzhb666 closed 3 months ago

bjzhb666 commented 3 months ago

Thanks for your great work. I want to get the pose (global coordinate system) of map elements (e.g., 'road_divider' 'lane_divider' 'ped_crossing' 'contours', etc.). What should I do?

bjzhb666 commented 3 months ago

Oh, I found it in the tutorial. Thanks

bjzhb666 commented 3 months ago

there is One more thing I want to check. Does this pose (in the red box) represent the center line of a lane or the lane line (boundary) of a lane? Thanks image

whyekit-motional commented 3 months ago

@bjzhb666 it should be the center-line of a lane

bjzhb666 commented 3 months ago

Thanks for your response. However, I found some GT center lines are not located at the center of the lane, but at the boundary. Is this caused by the offset mentioned in https://github.com/nutonomy/nuscenes-devkit/issues/144#issuecomment-500073604? Thanks! image

whyekit-motional commented 3 months ago

@bjzhb666 that is possible

bjzhb666 commented 3 months ago

Thanks for your response. We found most center lines are correctly located in the middle of the lane. The image provided above is a special case. image