Main web page of our group : http://3s.whu.edu.cn/ybs/index.htm
Mechanical structure design of the WHU-Helmet. (a) Head-mounted system. (b) Head-mounted system with a reference FOG (Fiber Optic Gyro) IMU.
Coordinate systems involved in the Helmet system.
If you need GT files, please send us a E-mail with your organization information to (kafeiyin00@gmail.com).
we provide the extrinsic parameters for LiDAR-IMU,LiDAR-camera, and camera intrinsic parameters in the calibration folder.
The extrinsic parameters of LiDAR-IMU are calculated using the AFLI-Calib
Weitong Wu, Jianping Li, Chi Chen, Bisheng Yang,et al.,2023. AFLI-Calib: Robust LiDAR-IMU extrinsic self-calibration based on adaptive frame length LiDAR odometry. ISPRS Jouranl of Photogrammetry and Remote Sensing.199,157-181.https://doi.org/10.1016/j.isprsjprs.2023.04.004.
We provide the rosbag (link) for running. Before you play the bag, use the rosbag_edit.cpp to preprocess the data.
rosrun your_package_name rosbag_edit_node $input_rosbag_path $output_rosbag_path
Example for running [fast-lio2] (https://github.com/hku-mars/FAST_LIO)
In the config_file folder, We provide the config file for running fast-lio2. You can easily use it for running.
We use evo to evaluate results with four metrics:
- APE_Trans(m): Absolute pose error about translation.
- APE_Angle(deg): Absolute pose error about angle.
- RPE_Trans(m/frame): Relative pose error about translation.
- RPE_Angle(deg/frame): Relative pose error about angle.
We test our dataset using Fast_lio, LIO_Livox , LOAM_Livox and MULLS. The following are results: