Specifications

a special value to parameter A, the recording of a low (dark) reference image
can be started now, or when assigning to parameter B the recording of a high
(light) reference image.
Example
New recording of a low reference image of the two-point correction within
actual correction memory page S.
>A=FF[CR]
In this case, the special parameter value FF is not a file number, but starts an
integration of 64 single images and transfers the result into the correction stor-
age. The initially adjusted file number remains unchanged.
After acquisition of new reference images, the set values J (or K) should be
adjusted to the mean value of the corresponding reference image to reduce a
gain or offset leap when switching between different correction data sets.
In order to stop the influence on the correction result of each other reference
image following the new recording of only a single reference image, the two
point correction can be operated via E=4 or E=5 as a simple one-point cor-
rection (background correction).
The newly recorded reference images are kept within the volatile correction
data storage (SDRAM) and will be lost when switching off the camera.
Background correction (U, M)
The module background correction is closely related to the module integrator
/ image store at the beginning of the processing chain (H). It also compre-
hends an image integration function. Additionally it can subtract its current
correction data image (H/U) from the incoming image and add the offset M.
Thus a fixed pattern noise reduction or difference image calculation is possible.
GigE Feature Name Feature Visibility Description
TPC_SetValue_LowRef Expert Define the set value for the low
reference image of the two-point
correction.
(J=<value> command)
TPC_SetValue_HighRef Expert Define the set value for the high
reference image of the two-point
correction.
(K=<value> command)
TPC_FirstImage_LowRef Expert File number of the first low
reference image of the two-point
correction.
(A=<value> command)
TPC_FirstImage_HighRef Expert File number of the first high
reference image of the two-point
correction.
(B=<value> command)
Table 35: GigE feature: TwoPointCorrection (TPC)