Teledyne Falcon4 86M User Manual page 63

2D Median
Pixel Rpw
Replacement
Column
Row or Column
Selector
Pixel Value
Replacement
Row or Column
No
Pixel Off
Replacement
Active
Mode
Pixel PixelReplacementClear
Replacement
Clear
FPN Base Defect flatfieldCalibrationFPNBaseDefectCount
Count
FPN Delta Defect flatfieldCalibrationFPNDeltaDefectCount
Count
PRNU Defect flatfieldCalibrationPRNUDefectCount
Count
Dark Row DarkRowSubtractMode
Subtract Mode
Off Off
Disabled Disabled
Falcon4 86M Cameras
The median filter algorithm determines the
median value of the same color pixels in
the immediate surroundings of the pixel in
question. If the median value differs from
the value of the pixel in question by more
than the value entered into the
medianfilterthreshold register, then the
median value replaces the current pixel
value.
If the current pixel is marked as defective,
then the median value replaces the current
value regardless of the calculation.
Determines if the Pixel Replacement Row
or Column Number is for Rows or Columns
(RW)
The column or row which is selected to be
defined as having the median filter active
or not active for the pixels in the column or
row.(RW)
When set to Active the entire row or
column of pixel values are replaced with
the median value. This is an independent
control from the FPN/PRNU defect
threshold. (RW)
Clears all Active rows and columns from
being included in the defect replacement
and sets them to Off.
Reports the number of defect pixels
detected in FPN base calibration.
Reports the number of defect pixels
detected in FPN delta calibration.
Reports the number of defect pixels
detected in PRNU delta calibration.
The dark row subtract function measures
the sensor dark row pixels and forms an
average for each column which is
subtracted, according to selected mode,
from the pixel data. This module corrects
for column based offsets and uses at most
28 of the 32 available sensor dark rows.
(RW)
It should be noted that FPN coefficients
should be calculated and used under the
same Dark Row Subtract Mode.
The black rows are output on image row 0
to 31, followed by the normal image rows
shifted 32 rows. The highest 32 rows of
image are not displayed. The values of
the pixels are not altered by the Dark Row
Subtract Module.
The video data is passed through without
being modified or shifted.
DFNC
Guru
DFNC
Guru
DFNC
Guru
Contents  61