Pattern Search Tool
Pattern Search Tool
The Pattern Search Tool can be used to find an image matching the pattern created by the Pattern Train Tool within the Image Window. If used in Teach-On mode during feature measurement, it will collect a point at the center of the found image.
Shape and Function
The Pattern Search Tool is rectangular in shape. The outer rectangle of the tool indicates the area of the image that will be searched. It is also affected by the Range option in the Pattern Search Settings. The inner rectangle shows the size and shape of the trained pattern. The inner rectangle will not change when the tool is resized and the tool cannot be resized to be smaller than the inner rectangle.
Moving the Pattern Search Tool
The Pattern Search Tool can be positioned anywhere within the Vision Image Window. Use the Tool Lock feature to constrain the tool's movement horizontally and vertically, if desired. The Reset Tool command will restore the tool's position to CMM-Manager's default.
Pattern Train Tool
Shape and Function
The Pattern Train Tool is rectangular in shape. The area of the tool indicates the area of the image which is used to train the pattern.
Moving the Pattern Search Tool
The Pattern Search Tool can be positioned anywhere within the Vision Image Window. Use the Tool Lock feature to constrain the tool's movement horizontally and vertically, if desired. The Reset Tool command will restore the tool's position to CMM-Manager's default.
Pattern Search Settings
The Pattern Search Settings dialog allows the user to modify parameters used by the Pattern Search Tool to dictate how the tool will perform the search. It also allows the user to select which pattern the tool will search for and delete any unused patterns.
Note: The Pattern Search Settings dialog window will be opened automatically when the Pattern Train Tool is executed. It can also be opened by selecting either the Pattern Train Tool or the Pattern Search Tool, then selecting Image Tool Settings in the Vision Ribbon Tab, or by right-clicking the image in the Image Window and selecting Pattern Search Settings.... Clicking OK will activate the Pattern Search Tool.
Options:
Score: A value from 0 to 1000 that defines how similar the image must be to the trained pattern for the Pattern Search Tool to recognize it.
A score of 1000 means the image must be perfectly identical to the trained pattern.A score of 0 means the image does not need to be similar to the trained pattern at all.
Priority: This option determines which image will be chosen if more than one image is recognized by the Pattern Search Tool.
When Nearest Location is selected, the tool will choose the recognized image that is closest to the center of the tool.When Highest Score is selected, the tool will choose the recognized image that is most similar to the trained pattern.When All Matches is selected, the tool will choose all the images that are similar to the trained pattern (exceeding the Score value). The number of points returned from the search result is limited to 500. Even if more than 500 matches are found, they will be silently ignored.
Range: This option determines the area in which the Pattern Search Tool will perform its search.
When Within Tool Area is selected, the tool will only search the area within the tool boundaries.When Within FOV is selected, the tool will only search the area within the current field of view.When Outside FOV (extend by tool size) is selected, the tool will extend its search area by the current field of view plus the dimensions of the tool. This will cause the stage to move.When Outside FOV (extend by 2x) is selected, the tool will double the dimensions of the current field of view and search within that area. This will cause the stage to move.
Angle: Pattern Search with Rotation Search option would find a Point along with the Angle of the image with respect to the reference image.
Action: This option determines if the Pattern Search Tool should continue searching after recognizing an image. This can be used to prevent the stage from moving if a recognized image is already found within the current field of view.
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