ALLIED Vision Technologies Goldeye P-032 SWIR User Manual
Page 68
Goldeye Technical Manual V2.5.0
68
The parameters
A and B define both files out of which the reference images
for the two-point correction data are loaded. If various correction data sets are
available, each of the reference images in the file system is stored in a closed
sequence of file numbers. The loading process following the camera start
begins at the first cold (low) reference image
A. Then the loading process con-
tinues with the accompanying warm (high) reference image
B.
In the following step an attempt is made to load the file numbers
A+1, then
B+1, and so on. This process continues as long as one file number is missing
within the file system or the maximum number of correction sets (actually 32)
is achieved.
If, during operation, the value of
A or B is new adjusted, this change causes
the immediate data load out of this file. Different to the automatic loading pro-
cedure following the switch-on of the camera, the data are exclusively copied
within the memory page
S therefore being activated (see Chapter
After the non-volatile storage (
X=1) and a restart of the camera, all file num-
bers following
A and B are loaded into the correction data memory as men-
tioned above. For an optimum image quality, consider that the parameters
A
and
B will always specify a pair of two mating reference images, even though
these parameters are alterable separately.
Figure 23: Schematic process of two-point correction
Load process
Low light level reference image
A
Low light level ref. set value
J
Correction
data
0x ??????
...
...
Correction
data
0x ??????
0
0
n
n
High light level reference image
B
High light level ref. set value
K
Correction
data
0x ??????
...
...
Correction
data
0x ??????
0
0
n
n