Panasonic MICRO-IMAGECHECKER AX40 User Manual page 109

6.9.2 What is Smart Matching?
Smart Matching
This is a function to detect the location of the registered base image (template) within the search area
(preset area). If the specified number of images is detected by searching, the positions (X/Y coordinate
values), the Rotation Angle and a degree of matching a template (Correspondence) will be output and it
will be judged "OK"; otherwise, it will be judged "NG".
In addition, the function finds an image that matches or resembles the template within the search area
based on the gray value. Searching order is called "Search Sequence". Some of the parameters can be
changed.
Type of Image
Shape of Area
Mask Area
Number of Detected Images
Rotation Angle
Detection Items and Range of
Measurement Results
Subtraction
Subtraction:
Extracts a pixel that exceeds a certain degree of the difference in the gray value when the detected
image overlaps the template. With this feature, you can detect up to 128 of subtraction parts that are
difficult to reflect the correspondence value and judge according to the number of subtraction parts
exceeding a certain size. In addition, you can filter the subtraction parts.
Gray/Differential
Rectangle
Settable up to 16
Up to 64
30°
Detection Count: 0 to 64
Correspondence: 0 to 100
X coordinate values: -511.9 - 1023.9
Y coordinate values: -479.9 - 959.9
Detection Angle: -30.0 - 30.0
Subtraction number: 0 - 128
Max. Subtraction
101