search

Livox-SDK / livox_camera_lidar_calibration

Calibrate the extrinsic parameters between Livox LiDAR and camera
Other
479 stars 135 forks source link

Not able to acquire the corner coordinates in point cloud using pcl_viewer #31

Open viveksm1997 opened 2 years ago

viveksm1997 commented 2 years ago

Hi, I am trying to extract chessboard corner points from pcd files using pcl viewer, but I'm not able identify the chessboard in the pcl viewer to take the coordinate values. Can anyone give me tips to extract corner points in point cloud using pcl viewer or any other method?, if possible.

I'm badly stuck at this point from many days so that I can not continue further for calibration.

Any help will be greatly appreciated.

Thanks, Vivek SM

BellosC commented 2 years ago

When you run the pcl-viewer command and open a .pcd file:

In you terminal, if you type a number from 1 to 5 and then Ctrl button, then, the pcl-viewer changes the visualisation. Please try number 5 & Ctrl button with that order. It will change the pseudo-colour and perhaps you will be able to see it. At least i was.

I could not see the chessboard at first , but doing this solved my problem.

Good luck.