The calibration process at this step is to detect the location of the display. All 36 dots need to be marked as green. If more or less points are detected, the calibration will fail. Please read the solutions to the common problems below.
Calibration failed because there is not enough contrast. Either adjust the room lighting or adjust the brightness of the projector.
Cannot See the Entire Display
The entire display is not within the preview window. The image on the right shows an example of what the camera sees. Notice that the corner of the display does not fit within the preview window.
Too many objects are detected.
Other objects near the display are detected wrongly as part of the display. The green dots indicates the objects that got detected. Look around the display and find those objects and remove them from the scene or cover them up if possible.