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Vision Sensor SBSI/SBSC-EN, 8062650 - 1607b - 13/09/2016
Vision Sensor Manual
Errors caused by tilt angle against perpendicular view to the measurement plane or by lens distortion are
not corrected using this method. World coordinates are not absolute. The coordinate values refer to the
principal point in left, upper corner or the field of view.
Next topic:
Calibration, Point pair list (Page 67)
Fig. 53: Calibration method, "Scaling"
Example:
Determination of distance between two objects in mm.
Parameter Scaling
Parameter
Function
Distance image
Distance in image in pixel (px), by graphical or numerical input
Distance world
Corresponding distance in world by numerical input (in previously selected
unit, e.g. mm)
Scaling factor
From above mentioned settings "Distance image" and "Distance world"
resulting scaling factor e.g.. [x] px/mm or. [y] mm/px
Punkt testen
Test point ( graphically or values
input ) is for the user to check calibration
of known points / dimensions around the image to confirm satisfactory
setting of the scaling factor.
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