Media Input
Add a Media Input and define the device/source.
Make sure that the checkbox Use as ImageProvider is set.
*Use a Viewer view-tab to check and monitor the media input. 
!This method is replaced with the new Camera Calibration Workflows since release 1.1.0 !!!
Add a Media Input and define the device/source.
Make sure that the checkbox Use as ImageProvider is set.
*Use a Viewer view-tab to check and monitor the media input.