Vision Sensor SBSI/SBSC-EN, 8062650 - 1607b - 13/09/2016
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Vision Sensor Manual
Fig. 127: Rotational direction of "Angle 180"
Fig. 128: Rotational direction of "Angle 360"
4.6.3.8.4.1 Detector BLOB, tab Features, Face up / Face down
“Face up/down, area” and “Face up/down, contour” assess the symmetry of the blob with respect to an
axis determined by the center and the orientation of the blob. If a blob is fully symmetric with respect to
this line the result value will be 0 otherwise it will deviate from 0. The sign of the value indicates whether
the side to the left or right is “stronger”.
“Face up/down, area”and “Face up/down, contour” can be used e.g. for discrimination of object pose as
necessary in pick-and-place applications or with vibratory feeders.
Fig. 129: Face up / Face down, area or contour
The left image displays the demonstration object on one side. The thresholds are choosen in a way that
this side is considered OK. The image displayed in the middle shows the same object flipped with its face
down. It is considered not OK. The right image displays both objects in the image.
Summary of Contents for SBSC-EN
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