Data Collection for LiDAR-LiDAR Calibration
Our current method for lidar-lidar calibration supports both target (single and multiple) and targetless.
This calibration works for LiDARs with an overlapping field of view only. Support for LiDARs with a non-overlapping field of view is coming soon.
- 1.Set up the LiDAR sensors to calibrate on an object or vehicle and ensure they are placed with an overlapping field of view.
- 2.Capture the LiDAR data from the first sensor (could be either of the two) for 5 seconds and export one frame of the LiDAR data at 3 seconds. This is to ensure that the sensor is stable from any shaky movements.
- 3.Repeat step 2 for the second sensor.
- 1.Set up the LiDAR sensors to calibrate on the object or a vehicle and ensure they have an overlapping field of view with their placement.
- 2.Place the calibration target in the overlapping field of view of both the LiDARs.
- 3.Capture the LiDAR data from the first sensor for 5 seconds and export one frame of the captured data from the middle (maybe at 3 seconds duration). This is to ensure the sensor is stable from any shaky moments.
- 4.Repeat step 3 for the second sensor.
Calibration Targets: 3 square or rectangular boards with different sizes ensuring a minimum size of 1mx1m.
- 1.Place the calibration targets in the overlapping field of view of both the LiDARs. Targets can be tilted, placed on the ground, or a stand for the data collection.
- 2.Place the targets parallel to the LiDAR FOVs at an optimal distance of 2-10m, based on the target sizes, LiDARs capture range, and laser channels count.
- 3.Avoid holding the targets or standing close to them to ensure they are captured clearly in the point cloud.
- 4.Capture the data from LiDAR 1 and LiDAR 2.