User`s manual

Standard Features AW00089316000
272 Basler ace GigE
10.9 Vertical Decimation (acA2000-50,
acA2040-25 Only)
The vertical decimation feature (sub-sampling) lets you specify the extent of vertical sub-sampling
of the acquired frame, i.e. you can define rows that you want to be left out from transmission.
The acA2000-50 and acA2040-25 cameras only
support decimation in vertical direction.
Examples
(Blue rows will be transmitted):
If vertical decimation is set to
 1: the complete frame will be transmitted out of the
camera (no sub-sampling is realized); see
Figure 103.
This is valid for mono and color cameras.
 2 for mono cameras: only every second row of the
acquired frame will be transmitted out of the camera
(Figure 104).
 2 for color cameras: only every second pair of rows
of the acquired frame will be transmitted out of the
camera (Figure 105).
By using the vertical decimation feature, you can increase the frame rate of the camera.
Setting Vertical Decimation
You can enable vertical decimation for the acA2500-50 and acA2040-25 cameras by setting the
Vertical Decimation parameter. Setting the parameter’s value to 1 disables vertical decimation.
Fig. 103: Decimation Disabled
Fig. 105: Decimation of 2 (Color Cameras)
Fig. 104: Decimation of 2 (Mono Cameras)