Falcon™ 4
-CLHS Series
Operational Reference
•
35
Performing an FPN Setup via Sapera CamExpert
The Sapera LT CamExpert tool provides an easy GUI based method for a user to perform a FPN
Calibration. For FPN calibration the camera must acquire a suitable dark image.
FPN Correction
In general, factory FPN correction is sufficient for most applications. However, if a new FPN
correction is required a user set FPN correction can be applied.
Important:
Before calibration, the Falcon4 should be powered on long enough to
achieve its nominal temperature (a minimum of 30 minutes). A low ambient
temperature may increase the time required for the camera to reach a stable
internal temperature.
Important:
During calibration, no other Falcon4 features should be accessed or
modified.
Calibration via CamExpert or via a User Application:
Exposure and frame
rates used during a Flat Field Calibration should be similar to the exposure settings
used in the camera application.
To perform FPN Correction
:
Step 1.
Cover the lens (place the sensor in dark).
Step 2.
Set the FPN Correction Mode to Off and check the histogram.
Using CamExpert, click
Grab
and then
Statistics
.
In the Statistics dialog, use the
Selected view
drop-down list to select Histogram.
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