Teledyne Falcon4 86M User Manual page 62

Gain(PRNU) flatfieldCalibrationPRNU
Calibration
Save Calibration flatfieldCalibrationSave
Copy Source flatfieldCoefficientsCopySource
Global Shutter FactoryFlatfield1
Factory Flat Field
Rolling Shutter FactoryFlatfield2
Factory Flat Field
User Flat Field 1 UserFlatfield1
to to
User Flat Field 3 UserFlatfield3
Copy Coefficient flatfieldCoefficientsCopyInCurrent
to Active
Pixel defectivePixelReplacementMode
Replacement
Mode
Off Off
Active Active
Pixel defectivePixelReplacementOffsetThreshol
Replacement d
Offset Threshold
Pixel defectivePixelReplacementGainThreshold
Replacement
Gain Threshold
Pixel defectivePixelReplacementAlgorithm
Replacement
Algorithm
60  Contents
Performs photo response non-uniformity
(PRNU) calibration. (W)
PRNU calibration eliminates the difference
in responsivity between the most and least
sensitive pixel, creating a uniform
response to light. Pixels that fall outside
gain range of 1 to 4 for their color are
marked as defective.
Write when in Calibration Mode
Saves the current flat field coefficients in
the Active Set to the corresponding non-
volatile memory. (W) The color camera
also stores the individual color gains and
system gain. Write when in Calibration
Mode.
Selects the flatfield coefficients set to copy
to the current Active Set. Read-Write when
in Calibration Mode
Factory calibrated flat field for Global
Shutter Mode
Factory calibrated flat field for Rolling
Shutter Mode.
User Flat Field 1 to User Flat Field 3: User
configurable flat field sets
Copies the currently selected by
flatfieldCoeffiecientsCopySource to the
Active Set. Write when in Calibration Mode
Enable or disable pixel replacement. (RW)
If Active: If FPNx,y >
defectivePixelReplacementOffsetThreshol
d OR PRNUx,y >
defectivePixelReplacementGainThreshold,
then
Pixelx,y is replaced using the algorithm
below.
Disable pixel replacement
Enable defective pixel replacement
The FFC base + integration time scaled
delta offset value (FPN) above which the
pixel are deemed hot pixels and replaced.
This value can be adjusted to replace
more or fewer pixels. (RW)
Possible values are:1 to 4096, as float
The FFC gain value (PRNU) above which
the pixel are deemed dead pixels and
replaced. This value can be adjusted to
replace more or fewer pixels.(RW)
Possible values are:1 to 4, as float
Selects the pixel replacement algorithm.
(RO) There is a separate register to
enable/disable Pixel Replacement.
Falcon4 86M Cameras
DFNC
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DFNC
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DFNC
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DFNC
Guru
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