problem in gt timestamp and bag timestamp

TIERS / tiers-lidars-dataset

Multi-modal multi-lidar dataset

MIT License

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problem in gt timestamp and bag timestamp #7

Closed yuhui-xie closed 2 years ago

yuhui-xie commented 2 years ago

Hi, thanku for u open dataset. When I use Tiers, I found that it seems that the gt timestamp can't be aligned with bag timestamp, the bag I use is indoor02.bag and gt I used is located in here https://github.com/TIERS/tiers-lidars-dataset/blob/main/data/ground_truth/indoor02_optitrack.csv.

gt starts with 1645371291.95999, end with 1645371332.29002 VLP start with 1645463118.1386, end with 1645463160.39853 it seems that There is no overlap between them at all

Qingq-li commented 2 years ago

Hi, thanks for pointing out this error. We have updated the ground truth for the indoor02 sequence.

BTW, the ground truth topic "/vrpn_client_node/*" published by the MOCAP system is also included in rosbag.