User's Manual

38
6. Calibration
After checking the items on the previous pages, if an error still occurs during calibration, it is possible that the quality
of the image photo
graphed by the web camera is insufcient and cannot be recognized.
Please pay attention to the points described below and make adjustments of the photographic image using the
camera
setup screen or the utility of the web camera, then try the calibration.
• Setupandadjustthecamerasothatthebackgroundofthescreen(e.g.,walls,etc.)doesnotenterthephotographicrangeof
the camera.
When there is a difference in brightness between the screen and the background, an error may occur during calibration.
Camera Adjustment Examples
Aim at the right image and adjust the camera so that the difference in
bri
ghtness between the test image and the screen becomes distinct.
[Camera Preview Screen]
Completion of calibration may not be possible in situations such as the following.
Photographic Screen is too Bright
Extraneous Light Enters the
Photographic Range
The Contour of the Projected Image Falls
Outside of the Photographic Range
Adjust the gain and the exposure. Adjust the installation position so
that ex
traneous light does not enter
the photo
graphic range.
Ad
just the installation position of
the camera
so that the contour of
the pro
jection image ts into the
photo
graphic range.