ALLIED Vision Technologies Pearleye P-030 LWIR - Manual (Page 40)

Basic parameters and commands
Pearleye Technical Manual V2.3.0
40
Automatic calibration (k)
Beside the manual selection of data sets with parameter S also an automatic
calibration (one-time or timer controlled repeating) can be carried out. The
automatic process tries to determine the best data set
S and activates it.
Pearleye P-007 LWIR / Pearleye P-030 LWIR models additionally employ the
electromechanical shutter to acquire a temporary background correction
image.
Criterion for the data set selection is a statistics value which is correlating with
the fixed pattern noise, being visible within the image. For the determination
of this statistics value an image is recorded and stored by means of the first
Integrator / Image Memory module in the chain. This acquired image is tested in
succession with each correction set being available in the memory by
determining the statistics value of the corrected data. Finally that memory page
S becomes activated, which is showing the best results for the statistics value.
Depending on the number of available data sets the automatic data set selec-
tion can take some seconds. During the data set selection the image output is
stopped by suppression of the FVAL signal. According to each image content,
under the same conditions diverse correction sets can be chosen if they are very
similar to one another. But generally the data set which is optimum for the
actual image content is activated.
Avoid triggering the camera while the calibration is in progress. Depending on
the camera model and current
j parameter configuration, the actions accom-
plished by the k command and its output at the serial interface may vary.
Example
Start an automatic calibration process
>
k=0[CR]
S=0A
M=87C8
>
GigE feature name (CameraSpecialFeatures) Feature Visibility Description
CorrectionDataSet Beginner Number of the correction data
set to activate.
(S=<value> command)
Table 10: GigE feature: CorrectionDataSet
Note

For more information on the corresponding commands see
Chapter
Command reference on page 65.