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SET (Setting) Mode
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Read DM (Pattern)
1. Read DM (Pattern)
The method of registering model images of finder patterns, and
using these models to find finder patterns from input images is
called "pattern search." Because image patterns are used, code
positions can still be found with greater accuracy than with Nor-
mal mode, even if the printing quality is poor.
Note There is an orientation tolerance of 10 with this method. Mod-
els cannot be detected for orientations greater than this.
Model
Note When using this menu, set the field of vision to satisfy the follow-
ing conditions.
The orientation of the (L-shape) finder pattern is restricted to the
following:
No other orientation is possible and so ensure that code images
are obtained in the correct orientation.
Example: OK
126
Pattern Settings
Search
There are more than 10 pixels per cell.
There is a margin of at least 2 cells around the code.
NG
Section
Search region
(Whole screen under
normal conditions)
The higher correlation
value (similarity) within
the search region is de-
tected as a finder pat-
tern.
6-1
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Troubleshooting
