OPERATING AND USER MANUAL Q-12 CoaXPress series
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Adimec
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7.15.5 DF_RestoreFactory
| WO | E |
Command
Restore the correction to the factory calibration status. Only the factory set
in the selected operating condition will be loaded (
SensorBitDepth
in
combination with the selected
ProgrammableGainAmplifier
).
7.15.6 DF_SaveAsFactoryDefault
| WO | G |
Command
Not accessible by the user.
7.15.7 DF_IsUserCalibration
| RO | E |
True
The user calibrated correction is active.
False
The factory calibrated correction is active.
This feature is automatically updated if any of the following features is changed:
BF_Calibrate, BF_RestoreFactory, BF_SaveAsFactoryDefault
7.16 Bright field
The bright field calibration measures and compensates for the pixel response non-uniformities (PRNU) between
columns. This correction is factory calibrated but can be re-calibrated in the field.
It is important that the full image sensor resolution (4096x3072 pixels) is illuminated with a uniform scene
because the calibration is always performed on the full resolution.
If the
ExposureMode
is configured to
Timed
the camera uses the internal timing generator to acquire images.
The exposure time is adjusted to accomplish the configured video level in the
BF_CalibrationVideoLevel
feature.
If the
BF_AutoLevelAdjust
is disabled the user should adjust the
ExposureTime
or illumination to achieve a
usable calibration scene.
It is recommended to adjust the video level to 50-70% of the full scale in case of a bright field calibration. In case
of a color camera, the color plane with the highest video level is adjusted to the configured set point. It is also
important to use a white light source such that all color planes are illuminated sufficient.
During calibration the scene should be continuously illuminated or the light source should be synchronized with
the flash strobe output.
If the
ExposureMode
is configured to
TriggerWidth
,
SyncControlMode
or
TimedTriggerControl
the video level
could not be automatically adjusted, the user is in this case responsible for the adjustment of the illumination or
exposure time.
After execution of the bright field calibration the calibration set is stored automatically in non-volatile memory.
Eight separate correction sets have to be stored for each
ProgrammableGainAmplifier
step (4 in total) in both
SensorBitDepth
modes. The calibration is only performed for the active configuration.
7.16.1 BF_ColumnGainCorrection
| RW | E |
True
Enable the bright field column gain correction.
False
Disable the bright field column gain correction.