Binning; Area Of Interest (Aoi) Setup - Dalsa Linea Color CL User Manual

Binning

Binning is the process where the charge on two (or more) adjacent pixels is combined. This
results in increased light sensitivity since there is twice the sensor area to capture photons.
The sensor spatial resolution is reduced but the improved low-light sensitivity plus lower
signal-noise ratio may solve a difficult imaging situation. The user can evaluate the results
of the binning function (factor of 2x) on the camera using CamExpert.
The camera supports horizontal and vertical binning independently. Vertical binning is
performed over multiple acquisition lines within the camera and the virtual frame buffer
height is automatically reduced when binning is enabled. Also note that binning is
performed digitally, therefore there is no increase in acquisition line rate. The following
graphic illustrates binning.
Note: horizontal binning cannot be enabled if the GreenOnly camera mode or RGBG8
camera mode is selected.
Horizontal Binning
by 2
Vertical Binning
by 2
applied to the virtual
frame buffer

Area of Interest (AOI) Setup

The Area of Interest (AOI) feature can be used to reduce the amount of image-data output
from the camera. Use this feature when there are areas in the image that contain unneeded
information.
An example where you would use this feature is in an application that is inspecting several
separated lanes of objects with one camera and the image between the lanes can be
ignored.
The AOI feature allows from one to four specific areas of the pixel line to be specified where
image data will be output. Since the AOI feature reduces the amount of data output, this
has the additional benefit of allowing the cameras to operate at higher EXSYNC rates when
using base, medium, or full camera link modes.
66 
1 2 3 4 4095
1 2 2048
Line
1
Line
1
Line
2
Repeated for each column of
Line
3 pixels for the user defined
Line
2
virtual frame buffer (i.e. Height)
Line
4
Line
1023
Line
512
Line
1024
4096
Repeated for each
acquired line
Appendix A: GenICam Commands