Specifications

Integration of 32 images simultaneously to the output of the actual integration
image (a=2, b=6) => abbba = 11100 [binary] = 0x1A. After that, reactivate the
background correction.
Command sequence
>U=1A[CR]
...wait for at least 34 image cycles (32 + 2 frames jitter buffer, 0.85 seconds at
40 images / second) or poll the state of bit group c with Y=1...
>U=1[CR]
The parameter M defines the offset value that is added to each pixel if the
background correction is activated. By default, M is automatically set to the
mean value of the background image, provided that the background image
acquisition is done with the automatic calibration function (k).
In this way it is possible to preserve the constant component of the image irre-
spective of the background correction’s activation state. Integrating a new
background correction image with the command U does not modify M. Only
the 12 most significant bits of this 16-bit value are relevant.
The following table reveals the bit order:
Example
Set the background correction offset to 291 = 0x123
>M=1230[CR]
Bad pixel correction (C, F)
The configuration of the bad pixel correction is executed ex factory, therefore
no access by the user is necessary.
Bit position 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Value (12-bit)
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
----
a0
Table 37: U and M: bit usage
GigE Feature Name Feature Visibility Description
BGC_OperationMode Expert Operation mode of the
background correction.
(U=<value> command)
While reading this feature the
MSB shows the state of the
integration process.
(0=Idle, 1=Busy)
BGC_OffsetValue Expert Offset value for the background
correction.
(M=<value> command)
Table 38: GigE feature: BackgroundCorrection (BGC)