Troubleshooting calibration

• Symptoms

• The calibration is inexact, i.e. too few points or large residuals.

• Resolutions

  • Check that the Exact wand length on the Calibration page in the Project options dialog are correct.

  • Check that all cameras can see the L-shaped reference structure.

    This does not apply to an extended calibration.

  • Check that the calibration wand has not been moved too fast.

  • Check that the calibration wand has been moved inside the calibration volume during the calibration, i.e. check that there is at least 500 points used for each camera in the Calibration results dialog.

    If the wand is larger than the calibration volume, change to a smaller wand calibration kit.

  • Check that the camera positioning is OK, see chapter Camera positioning.

 

• Symptoms

• The field of view of the cameras is too small.

• Resolutions

  • Move the cameras out from the measurement volume.

  • Change to a wider lens option.

 

• Symptoms

• The camera result of a camera says Unused camera.

• Resolutions

  • The camera is deactivated on the Linearization page in the Project options dialog. Activate the camera and perform the calibration again or reprocess the calibration, see chapter Recalibration.