Basler Vision Technologies Sprint Series, User Manual

Page: 59 / 236

Line Acquisition Modes
Basler sprint Mono Cameras 49
3.4 Vertical Binning Acquisition Mode
When the vertical binning acquisition mode is active, each time a line acquisition is triggered, the
camera will expose both line A and line B. When acquisition is complete (i.e., exposure is finished),
the pixel values from line A will be added to the pixel values from B in the following manner:
„
The value for pixel 1 in line A will be added to the value for pixel 1 in line B
„
The value for pixel 2 in line A will be added to the value for pixel 2 in line B
„
The value for pixel 3 in line A will be added to the value for pixel 3 in line B
„
And so on
The summed values for each pair of pixels will be transmitted from the camera as though they were
from a single pixel.
Vertical binning can be useful if you are capturing images in low light conditions and you want to get
an increased response from the camera. Using vertical binning will result in approximately double
the response of single line acquisition.
Figure 20 illustrates vertical binning.
Fig. 20: Vertical Binning
The physical pixels in each line of the sensor are 10 µm (H) x 10 µm (V). So when you use vertical
binning, you get the same effect as using a single line sensor that has 10 µm (H) x 20 µm (V) pixels.
Some users may find the effective 10 µm x 20 µm pixel size to be objectionable because the
effective pixel is no longer square. Note that if you use the vertical binning acquisition mode
together with the camera’s horizontal binning feature, the effective pixel size will become 20 µm (H)
x 20 µm (V). In this situation, you will get a response that is approximately four times higher than
normal, and you will have a square pixel size.
For more information about the horizontal binning feature, see Section 3.8 on page 59 .
Line B
Line A
= Pixels Summed and
Transmitted as
a Single Value