1. Calibration List Page:
Click on ‘New camera intrinsic calibration’ to start the intrinsic calibration.
This page also lists all saved calibrations and filters to view them.
2. Start Page:
Start the process by clicking on ‘Get started'.
Add the camera name and select the camera model for which the intrinsic calibration has to be done.
3. Add images:
Upload the images along with the checkerboard in its frame of view.
4. Checkerboard configuration:
Add the checkerboard corners in the configuration displayed on the right side of the page.
The horizontal corners are the count of inner corners in the horizontal direction.
Similarly, vertical corners are the count of inner corners in the vertical direction.
For the image shown below the checkerboard has 7 horizontal and 9 vertical corners.
Once the config is set, the ‘run calibration’ button is enabled.
5. Run calibration:
On clicking on ‘Run calibration’ the intrinsic parameters are calibrated.
6. Verify Results:
One can verify the calibration results by using the reprojection error. It is the mean error of all the reprojected points.
Also, the results can be visually verified by checking the undistorted image.
The side by side view can be used to check both the distorted and undistorted image at the same time.
7. Checkerboard Coverage:
Checkerboard coverage shows the amount of area that is covered by the checkerboard corners from all the images uploaded.
Higher coverage results in higher calibration accuracy.
8. Save to profile: Camera Intrinsic parameters can be saved to profile can be saved using this button