Sensor Calibration: Sensor calibration is an integral part of any robotics project. Through calibration, we get the extrinsic parameters of those sensors with respect to each other, for example, the XYZ (translation) and roll, pitch, and yaw (orientation) of one sensor with respect to another one. Thus, we can transform data from one coordinate system to another one like a detected object is 10m away from the lidar and 8m from the car coordinate frame.  More details are coming soon

LiDAR to base_link calibration: https://github.com/zillur-av/CalibrationTools/blob/tier4/universe/sensor/docs/how_to_extrinsic_ground_plane.md

LiDAR to LiDAR calibration: https://github.com/PJLab-ADG/SensorsCalibration/tree/master/lidar2lidar