Binning - Basler A101f User Manual

3.7 Binning

Binning increases the camera's sensitivity to light by summing the charges from adjacent pixels
into one pixel. There are three types of binning available: horizontal binning, vertical binning and
full binning.
With horizontal binning, pairs of adjacent pixels in each line are summed (see Figure 3-11). With
vertical binning, pairs of adjacent pixels from two lines are summed. Full binning is a combination
of horizontal and vertical binning in which four adjacent pixels are summed.
When horizontal binning is active, image resolution decreases to 650 pixels (H) by 1030 pixels
(V). When vertical binning is active, resolution decreases to 1300 (H) by 515 (V). With full binning,
resolution decreases to 650 (H) by 515 (V).
Horizontal binning is enabled by setting the CUR_V_FORMAT control register to 7 and the
CUR_V_MODE control register to 1. Vertical binning is enabled by setting the CUR_V_FORMAT
control register to 7 and the CUR_V_MODE control register to 2. Full binning is enabled by setting
the CUR_V_FORMAT control register to 7 and the CUR_V_MODE control register to 3.
Charges from adjacent
pixels in each line
are summed and reported
out as a single pixel.
Horizontal
Binning
Figure 3-11: Binning
Binning is only available on the A101
Using horizontal or vertical binning generally increases the camera's sensitivity by
up to two times normal. Full binning increases sensitivity up to four times normal. Af-
ter switching on binning, the image might look overexposed. Reduce the lens aper-
ture, light intensity, or exposure in this case.
With horizontal binning active, frame grabbers often require the information that the
horizontal resolution is 650. With vertical binning active, they often require the infor-
mation that the vertical resolution is 515. With full binning active, they often require
the information that the horizontal resolution is 650 and the vertical resolution is 515.
With vertical or full binning active (horizontal binning has no effect), the maximum
allowed frame rate increases to 22.89 frames/sec.
f
BASLER A101
DRAFT
Charges from adjacent
pixels in two lines
are summed and reported
out as a single pixel.
Vertical
Binning
monochrome camera.
f
Operation and Features
Charges from groups
of four pixels are
summed and reported
out as a single pixel.
Full
Binning
3-13