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FitCircleToStripe3D


Performs a series of 1D edge detections in 3D and finds a circle that best matches the detected points.

Name Type Range Description
inSurface Surface Surface to fit the circle to
inFittingField CircleFittingField Circle fitting field
inFittingFieldAlignment CoordinateSystem2D* Adjusts the fitting field to the position of the inspected object
inScanCount Integer 3 - The number of points that will be searched to estimate the position of the circle
inSamplingStep Real* Desired distance between consecutive sampling points on the scan segments; if Nil, the bigger of surface X and Y scales is chosen
inScanWidth Integer 1 - The width of each scan field (in pixels)
inSurfaceInterpolation InterpolationMethod Interpolation method used for extraction of surface points
inStripeScanParams StripeScanParams3D Parameters controlling the stripe extraction process
inStripeSelection Selection Selection mode of stripe
inLocalBlindness LocalBlindness* Defines conditions in which weaker edges can be detected in the vicinity of stronger edges
inMaxProfileGapWidth Integer* 0 - Maximal number of consecutive not existing profile points
inMaxIncompleteness Real 0.0 - 0.999 Maximal fraction of stripe points not found
inFittingMethod CircleFittingMethod Method used to fit a circle
inOutlierSuppression MEstimator* Selects a method for ignoring incorrectly detected points
outCircle Circle3D? Fitted circle in the middle of found stripe or nothing if the fitting fails
outInnerCircle Circle3D? Fitted inner circle
outOuterCircle Circle3D? Fitted outer circle
outStripes SurfaceStripe1D?Array Found stripes
outStripePoints Point3DArray Extracted points of middle circle of a surface stripe
outDeviationProfile Profile? Profile of distances between the actual circle points and the corresponding reference circle points
outAlignedFittingField CircleFittingField Fitting field used; in the image coordinate system
diagScanSegments Segment2DArray Segments along which the scans were run
diagSamplingAreas Rectangle2DArray Areas from which the input image is sampled
diagHeightProfiles ProfileArray Extracted surface height profiles
diagResponseProfiles ProfileArray Profiles of the edge (derivative) operator response

Applications

Precise detection of a circular object or hole, whose rough location is known beforehand.

Hardware Acceleration

This operation supports automatic parallelization for multicore and multiprocessor systems.

Complexity Level

This filter is available on Basic Complexity Level.

Filter Group

This filter is member of FitCircle3D filter group.