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heethesh / lidar_camera_calibration

Light-weight camera LiDAR calibration package for ROS using OpenCV and PCL (PnP + LM optimization)
BSD 3-Clause "New" or "Revised" License
536 stars 118 forks source link

solve error #6

Closed crankler closed 4 years ago

crankler commented 4 years ago

Hi, when I have choosen the corner points in image and lidar data, the error shown as follow:

... File "/home/../catkin_test/src/lidar_camera_calibration/scripts/calibrate_camera_lidar.py", line 320, in calibrate assert(points2D.shape[0] == points3D.shape[0]) AssertionError

Then I print the data:

... points2D.shape[0]: 32 points3D.shape[0]: 43

Can you tell me how to rectity this problem? thank yuo!

heethesh commented 4 years ago

Deleting the .npy files where the point are stored will reset the counts

kubs0ne commented 3 years ago

Hi, I had the same error, and deleted the files as you said, but now I have a different error:

IOError: [Errno 2] No such file or directory: '/home/kuba/catkin_ws/src/lidar_camera_calibration/calibration_data/lidar_camera_calibration/img_corners.npy'

Which indicates that the initial npy files are needed. Do you have any further suggestions of what could I do?

Regards

heethesh commented 3 years ago

did you delete the file when the calibration program was still running? if you deleted the file and did not pick any correspondences for calibration, that is when this error might arise

kubs0ne commented 3 years ago

No, actually I didn't do it so it is strange. I downloaded the repo again and I have the same 2 errors, however I select 5 points, just like you in the youtube film.