Operation and Features
3-14 BASLER L304kc
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Keep in mind that the direction of travel of the object will determine how the object’s image passes
the camera’s sensor. If the object passes the camera as shown in Figure 3-12, its image will cross
the blue line first, the red line second and the green line third. If the object passes the camera as
shown in Figure 3-13, its image will cross the green line first, the red line second and the blue line
third. To properly combine the exposures, the camera must know which way the image is crossing
the sensor. The Spatial Correction Direction parameter is used to tell the camera how the image
is crossing the sensor (see Section 3.5.2 for more information).
3.5.2 Spatial Correction Parameters
Two parameters are associated with the spatial correction feature: Spatial Correction Direction
and Spatial Correction Amount.
Spatial Correction Direction
The spatial correction direction parameter tells the camera how the image of the object will pass
the camera’s CCD sensor. There are two cases:
Case 2: When an objective lens is used
with the camera and the object is passing
the camera as shown in Figure 3-13, the
image of the object will pass the green
line in the sensor first. In this case, the
spatial correction direction must be set to
green.
Figure 3-13: Direction = Green
Case 1: When an objective lens is used
with the camera and the object is passing
the camera as shown in Figure 3-12, the
image of the object will pass the blue line
in the sensor first. In this case, the spatial
correction direction must be set to blue.
Figure 3-12: Direction = Blue
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