omron — Arc Caliper

Arc Caliper Configuration Basic steps for configuring an Arc Caliper 1. Select the tool that will provide input images. 2. Position the Arc Caliper tool. 3. Configure Pair Settings for each edge pair. See Configuring Arc Caliper Properties on page 359 4. Test and verify results. See Arc Caliper ResultsResults for edges found by the Arc Cal- iper tool are shown in the grid of results, below the Display window, as shown in the fol- lowing figure.Representation of Arc Caliper Results in Display and Results GridDisplay WindowThe Display window shows the image being processed, the region of interest selected, and the locations of found instances.

The elapsed time is displayed at the bot- tom of this window.Grid of ResultsThe grid of results presents the result values for all caliper measures found by the Arc Caliper tool.ObjectDefinitionPair NameThe name of the edge pair, as it appears in the Pairs list.Pair ScoreScore is the calculated score, between 1 and 0, for the edge pair. The score is calculated according to the defined con- straint functions. If both Position and Magnitude constraints are enabled, each con- straint accounts for 50% of the score.Each edge of the pair is also scored individually, in a similar manner.

See Edge1/Edge2 Score.Pair SizeSize is the Caliper measure, which is the calculated distance between the pair of edges.Pair RadiusMean of Edge 1 Radius and Edge 2 Radius.Pair XThe X coordinate of the center point of the caliper measure, at the midpoint of the edge pair.Pair YThe Y coordinate of the center point of the caliper measure, at the midpoint of the edge pair.Frame/GroupThe frame or group to which the result belongs.Edge 1/Edge 2 ScoreThe score of the individual edge, cal- culated according to the defined constraints.Edge 1/Edge 2 XThe X coordinate of the edge, at the midpoint of the edge segment.Edge 1/Edge 2 YThe Y coordinate of the edge, at the midpoint of the edge segment.Edge 1/Edge 2 RotationThe angle of rota- tion for the edge.Edge 1/Edge 2 RadiusRadius of detected arc.Edge 1/Edge 2 Position ScorePosition score for the edge, calculated according to the Position constraint func- tion.Edge 1/Edge 2 MagnitudeThe calculated Magnitude value for the edge.Edge 1/Edge 2 Magnitude ScoreMagnitude score for the edge, calculated according to the Magnitude constraint function.Related TopicsArc Caliper ToolConfiguring Arc Caliper PropertiesConfiguring Arc Caliper Properties - Advanced.

on page 1 5. Configure Advanced properties if required. See Configuring Arc Caliper Properties - Advanced on page 367 ACEUser's Guide, 3.6.x, 18316-000 Rev A Page 356 Object Definition Properties Pairs Opens Edge Pair Collection Editor to set criteria for valid edges. Show Results Graphics Specifies if the graphics are drawn in the Vision Window.