Panasonic Micro-Imagechecker AX40, User Manual

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6.16 What is Rotation Adjustment?
6.16.1 Overview
Rotation Adjustment is a function to move and rotate a checker to the current position of the object when
the inspection parts move right, left, up and down (in the vertical/horizontal directions) on the screen or
have a slope. This function calculates how many pixels the object moved from the base position in X and
Y directions and moves the object by the moving distance which is called “Adjustment amount”.
Detecting the object
Follow the same steps that were used for detecting the position and angle of an object to detect the
position and angle of the object with a checker.
BINARY EDGE
(Direction:
Horizontal)
GRAY EDGE
(Direction:
Horizontal)
Set two areas to search in the
horizontal direction.
Trigonometric function
calculates the slope of the object
using the coordinates of the two
edges of the object.
BINARY EDGE
(Direction:
vertical),
GRAY EDGE
(Direction:
vertical)
Set two areas to search in the
vertical direction. Trigonometric
function calculates the slope of
the object using the coordinates
of the two edges of the object.
Feature
Extraction:
To detect the rotation angle and
coordinates by setting one area
to detect the gravity and
principal axis angle of the object
(Extraction Image: clusters of
extraction /not extraction pixels,
Extraction Image: clusters of
white or black pixels) within the
area