AW00011916000 Standard Features
Basler scout GigE 277
Reduced Resolution
Using binning effectively reduces the resolution of the camera’s imaging sensor. For example, the
sensor in the scA780-54gm camera normally has a resolution of 782 (H) x 582 (V). If you set this
camera to use horizontal binning by 3 and vertical binning by 3, the effective resolution of the sensor
is reduced to 260 (H) by 194 (V). (Note that the 782 pixel horizontal dimension of the sensor was
not evenly divisible by 3, so we rounded down to the nearest whole number.)
Possible Image Distortion
Objects will only appear undistorted in the image if the numers of binned lines and columns are
equal. With all other combinations, the imaged objects will appear distorted. If, for example, vertical
binning by 2 is combined with horizontal binning by 4 the widths of the imaged objects will appear
shrunk by a factor of 2 compared to the heights.
If you want to preserve the aspect ratios of imaged objects when using binning you must use vertical
and horizontal binning where equal numbers of lines and columns are binned, e.g. vertical binning
by 3 combined with horizontal binning by 3.
Binning’s Effect on AOI Settings
When you have the camera set to use binning, keep in mind that the settings for your area of interest
(AOI) will refer to the binned lines and columns in the sensor and not to the physical lines in the
sensor as they normally would. Another way to think of this is by using the concept of a "virtual sen-
sor." For example, assume that you are using a scA780-54gm camera set for 3 by 3 binning as de-
scribed above. In this case, you would act as if you were actually working with a 260 column by 194
line sensor when setting your AOI parameters. The maximum AOI width would be 260 and the max-
imum AOI height would be 194. When you set the X Offset and the Width for the AOI, you will be
setting these values in terms of virtual sensor columns. And when you set the Y Offset and the
Height for the AOI, you will be setting these values in terms of virtual sensor lines.
For more information about the area of interest (AOI) feature, see Section 12.4 on page 238.
Binning’s Effect on the Sensor Readout and Frame Rate Formulas
In several areas of the manual, formulas appear for sensor readout time and for calculating the
maximum frame rate. In several of these formulas, you must enter the current height of the area of
interest (AOI). If you are not using binning, you would enter the height of the AOI in physical sensor
lines. If binning is enabled, however, you must use the concept of a "virtual" sensor as described
above and the height of the AOI that you use in the formulas would be in terms of virtual sensor
lines.
The affected formulas appear on page 166, page 168 and.
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