The point cloud is unable to detect the checkerboard

[Levi-zhan]

Hello, my lidar is a 32 wire one. I manually provided the ROI of a lidar checkerboard board, but the checkerboard still cannot be detected using the regio_growning_kernel function. Is it because the lidar point cloud is too sparse? May I ask if it is possible to achieve calibration board detection by modifying some configuration parameter classes purchased in YAML? I don't quite understand this part of the principle.tankes

This is a picture of my lidar checkerboard board