Binning - GigE VA Series User Manual

9.2

Binning

Binning has the effects of increasing the level value and decreasing resolution by summing the values of the
adjacent pixels and sending them as one pixel.
The XML parameters related to Binning are as follows.
XML Parameters
ImageFormatControl
For example, if you set 2 × 2 binning as shown in the figure below, four pixels will be summed into one pixel.
Then, the effective maximum resolution of the sensor is reduced to 1/2. The Width Max and Height Max
parameters, indicating the maximum allowed resolution of the image with the current camera settings, will be
updated depending on the binning settings. And also, the Width, Height, Offset X and Offset Y parameters will
be updated depending on the binning settings. You can verify the current resolution through the Width and
Height parameters.
Since vertical binning is processed in the internal register of CCD, the frame rate will be increased and SNR will
be improved because the number of the readout process is reduced. However, the horizontal binning does not
affect the frame rate and SNR because it is processed in the FPGA. The brightness will be increased about four
times because four pixels are summed as one.
×1, ×2, ×3,
BinningHorizontal
×4, ×8
×1, ×2, ×3,
BinningVertical
×4, ×8
Table 9.3 XML Parameters related to Binning
Figure 9.3 Binning
50 of 94
Value
Number of horizontal pixels to combine
together
Number of vertical pixels to combine together
VA GigE series
Description
RA14-131-003