Hardware manual

Impact Reference Guide Pinpoint Pattern Find™
3-89 Datalogic Automation Inc.
minus the text, is the trained pattern. The pattern’s edge points may have gaps in them. These are a nor-
mal feature of the tool caused by a statistical data reduction process that increases execution speed.
3. Pattern Model: The model from another Pinpoint Pattern Find tool can be linked to this tool, rather
than training the model in this tool. You can do this, for example, if you want to search for the same
model using a different Search ROI or different Search settings. All Train settings are disabled if a Pat-
tern Model is linked here.
NOTE: Searching for both Possible Rotations and Possible Scaling can add a large amount of execution time
and memory usage to the tool.
4. Possible Rotations: The Possible Rotations setting determines how the tool deals with image rotation.
Use the No Rotation option if the image will not rotate. This is the fastest mode as most applications do
not involve rotation.
Use the "+- A Few Degrees" setting if the part can rotate a small amount. The tool searches for patterns
rotated from -5 to +5 degrees. You can change the Start and End rotation if necessary.
Use the "0 And 180 +- A Few Degrees" option if some parts can be oriented two ways – as trained or
rotated 180 degrees. The tool searches for patterns rotated from -5 to 5 degrees and 175 to 185 degrees.
Use the "Full 360 Degree Range" setting for fully rotating parts. You should only use this option for
parts that can be oriented at any angle. This option takes longest to execute and there is a greater risk of
false matches if the search range is too large.
5. Possible Scaling: The Possible Scaling selection determines how the tool deals with scale variations
(size changes) in the pattern. The setting "No Scaling" is the fastest setting as most applications do not
involve any scale variation.
If the pattern size varies a little, and the tool is failing to find these patterns, use the setting "Slight
Scaling 0.9 - 1.1." This allows up to plus or minus 10% variation from the trained pattern size.
The "Large Scaling 0.5 - 2.0" setting can deal with very large scale variation of 1/2 size to double size.
Trained Pattern
Rectangular Exclusion
Region