4-8
Positional Deviation Measurement
4
4. On the settings for the gray scale search conditions (page 4-3), register the object by surrounding
it with a square window, regardless of the shape of the object to be measured.
[Example]
- When triggered to store the reference image, the system will store various views of the object in
memory by rotating the image, 10 degrees at a time.
[When the angle range is set to
±
360˚]
5. Specify a search area that is large enough to include various positional deviations of the object.
6. When starting the measurement, the system will execute a gray scale search of the captured
image based on the stored reference images, which were created by rotating the basic image, 10
degrees at a time in step 3 above.
Note: When "NO" is selected for the "DTECT ANGL" (rotation angle detection) in the previous page
after registering the reference image, a "Reference image condition mismatch" error will occur
when executing the measurement.
Image to register
10
°
0
°
20
°
-170
°
180
°
-10
°
Reference image
. . .
. .
Reference image area
Search area
10
20
30
40
50
60
70
Captured
image
Degree of match
Define the position using the curve interpolation.
Rotation
angle
Degree of match curve
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