Inspecting With The Shape Search Ii Inspection Item; Shape Search Ii Inspection Item; Setup Procedure For The Shape Search Ii Inspection Item - Omron FQ2-S/CH Series User Manual

4-9 Inspecting with the Shape Search II Inspection Item

FQ2-S1 FQ2-S2

Shape Search II Inspection Item

This inspection item is used to search for the portion of the input image that most closely resembles an image
pattern that is called a model. The model is registered in advance based on a characteristic feature of the
measurement object. You can output the correlation, which tells how closely the portion of the image matches
the model. You can also output the position of the measurement object and the angle of the measurement
object. For the normal Search inspection item, a model that concentrates on the color and brightness of the
image pattern is used, but in the Shape Search II, a model that concentrates on the outline information is used.
This inspection item enables robust, high-speed, high-precision detection of models even when lighting is
reflected from the workpieces, when the shapes of the workpieces are inconsistent, when the orientation of the
workpieces change, when noise is superimposed, when part of the image is blocked, or when there are other
fluctuations in the environment.
Sample Settings
Search region (region to
search for the model)

Setup Procedure for the Shape Search II Inspection Item

Step 1 Selecting the Inspection Item
− [Inspection]
[Inspect]
1
Press an unused inspection item number and press
[Add item.].
2
Press [Shape Search II].
Registering inspection items: p. 104
Note
Drag the arrow
156

Inspecting with the Shape Search II Inspection Item

FQ2-S3 FQ2-S4
Model
(desired image pattern)
+
at the bottom of the menu upward to display all of the inspection items.
Sample Measurement
Search for sections that are similar to the model.
OK NG
FQ2-S/CH User's Manual