User Manual
Wildcat
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Date:
XF-104_03/20-12-2012
Page 39 of 58
7 Calibration
The settings and specifications described below may change without notice.
A calibration is only valid for the camera settings it has been generated with.
Clearing or overwriting existing calibrations stored in camera memory is
irreversible.
Default calibrations
The camera is by default delivered with the following calibration files. They can be found in
the USB stick which is delivered with the camera and in the memory slots on-board the
camera.
NUC
slot
Type
Calibration pack name
Gain
Exposure
time
0
NUC
XC-(
<date>
)-HG-500us-
<serial>
High
500 µs
1
NUC
XC-(
<date>
)-HG-5000us-
<serial>
High
5000 µs
2
NUC
XC-(
<date>
)-LG-500us-
<serial>
Low
500 µs
3
NUC
XC-(
<date>
)-LG-5000us-
<serial>
Low
5000 µs
Two types of calibration exist:
•
NUC or Non-Uniformity Correction is the default calibration type.
o
This calibration type is only valid for a single integration time.
o
This calibration type consists of a gain value and an offset value for each
pixel.
o
This calibration supports dynamic range clipping.
o
This calibration type corrects Fixed Pattern Noise (FPN) and Photo-
Response Non-Uniformity (PRNU).
o
Defective pixels may be marked as bad pixels and will be replaced in the
corrected image by a value based on surrounding pixels.
•
TrueNUC:
o
This calibration type is valid for a range of integration times instead of a
single value.
o
This calibration type has all the other properties of a NUC.
The Wildcat camera supports only NUC calibrations in its on-board calibration slots.
TrueNUC calibrations can be applied in software.
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