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Opening Algorithm
The Opening tool processes the data in three phases: Search, Measure, and Filter.
See the tool's parameters for an explanation of the options that affect the tool's algorithm.
Search phase - The tool searches for coarse data transitions (edge data) and performs a coarse
fitting of the opening shape (specified by the orientation angles and the nominal dimensions) to
determine the most likely candidate. If Tilt Correction is enabled, the algorithm uses the flat surface
in the measurement region to estimate the orientation of the part.
Measure phase - A more rigorous edge detection algorithm is applied to precisely determine the
edges around the feature. Edge detection at this stage will reject outliers and noise. The algorithm
requires opposite sides and ends to be associated with a comparable number of edge pixels, with
the weaker side or end having at least 25% of the stronger.
The set of refined edges is then used to locate and inspect the feature. If the Reference Regions
setting is enabled, the edges are also used to calculate the location of the reference regions.
Filter phase - The detected location and dimensions are compared to the nominal and tolerance
settings. If the refined feature falls within the measurement region and its measurements fit within
the specified tolerance, the results are reported. If not, an invalid result is returned.
Inputs
You configure the tool's inputs in the expandable Inputs section.
Configuring Systems • 465
Gocator Line Confocal Sensors: User Manual
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