Pyrocam IV Operator’s Manual Document No. 50337-001 Rev F 2/21/2017 Page 35
Bad Pixel Correction Procedure
Before beginning a bad pixel correction process, setup the Pyrocam to operate and provide
a reasonably bright source of illumination. Laser beams of the correct wavelength make
good illuminators. It is also necessary to be able to translate the illuminated spot around
the detector array in search of the defective pixels. Don’t forget to Calibrate/Ultracal
the Pyrocam.
Open Utilities
With the Pyrocam operating as described above, click on the Bad Pixel Correction
expansion button to access the bad pixel correction tools as shown below.
Doing this will cause the following events to occur:
The Bad Pixel Correction Dialog window will open.
A live image will appear in the 2D BeamGage display window.
Note that a description of the Bad Pixel Correction tools is described in section 3.2.
Step by Step
STEP 1. Click Start in BeamGage to collect live frames of data and translate the laser
spot around the detector, watching for pixels that appear to meet the bad
pixel criteria.
STEP 2. When a bad pixel is found, click Stop to pause the live image. All of the
previously marked bad pixels will be marked in YELLOW.
STEP 3. Use the mouse to center the cursor on the bad pixel. Observe the horizontal
and vertical profile displays. When properly centered, the defective pixel
should be clearly visible in both of the profiles. Figure C.1 shows an
example of a bad pixel centered in the cursor, with a few more nearby.
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