Parameter Setting
Thermal Imaging Integrated Network Camera
User Manual
60
Issue V1.1
（
2022-05-21
）
Table 6-2 lists the parameters on the FFC control interface.
Table 6-2
Parameters on the FFC control interface
Parameter
Description
Setting
FFC Mode
The internal of the thermal imaging camera may
comprise the mechanical action correction
mechanism that can periodically improve the
image quality. This component is called flat field
correction (FFC). When controlling the FFC, the
FFC shields the sensor array, so that each portion
of the sensor can collect uniform temperature
fields (flat field). By means of FFC, the camera
can update the correction coefficients to output
more uniform images. Throughout the FFC
process, the video image is frozen for two
seconds and a static-frame image is displayed.
After the FFC is complete, the image is
automatically recovered. Repeated FFC
operations can prevent the grainy and image
degradation problems. The FFC is especially
important when the temperature of the camera
changes. For example, after the camera is
powered on or the ambient temperature is
changed, you should immediately perform the
FFC.
Auto
: In the Automatic FFC mode, the camera
performs FFC whenever its temperature changes
by a specified amount or at the end of a specified
period of time (whichever comes first). When this
mode is selected, the FFC interval (minutes)
ranges from 5 to 255 minutes. The temperature
change of the camera is based on the temperatures
collected by the internal temperature probe. The
temperature of the camera sharply changes when
the camera is powered on. The FFC is relatively
frequent, which is normal.
Manual
: In the manual FFC mode, the camera
does not automatically perform the FFC based on
the temperature change or the specified period.
You can press the Do FFC button to select the
manual FFC mode. When you feel that the image
is obviously degraded but the automatic FFC is
not performed, you can use the manual FFC
function to check whether the image quality can
be improved.
[How to set]
Select from the
drop-down list
box.
[Default value]
Auto
