You are here: Start » AVL.NET » Invoke.FitArcToEdges_Direct

Invoke.FitArcToEdges_Direct

Performs a series of 1D edge detections and finds an arc that best matches the detected points.

Namespace:Avl
Assembly:AvlNet.dll

Syntax

C++
C#
 
public static void FitArcToEdges_Direct
(
	Avl.Image inImage,
	Avl.ArcFittingField inFittingField,
	Optional<Avl.CoordinateSystem2D> inFittingFieldAlignment,
	int inScanCount,
	int inScanWidth,
	Avl.SamplingParams inSamplingParams,
	Avl.EdgeScanParams inEdgeScanParams,
	Avl.Selection inEdgeSelection,
	Optional<Avl.LocalBlindness> inLocalBlindness,
	float inMaxIncompleteness,
	Avl.CircleFittingMethod inFittingMethod,
	Optional<Avl.MEstimator> inOutlierSuppression,
	Conditional<Avl.Arc2D> outArc,
	Optional<List<Conditional<Avl.Edge1D>>> outEdges,
	Optional<Conditional<Avl.Profile>> outDeviationProfile,
	Optional<Avl.ArcFittingField> outAlignedFittingField,
	Optional<List<Avl.Point2D>> outInliers,
	Optional<List<Avl.Profile>> outBrightnessProfiles,
	Optional<List<Avl.Profile>> outResponseProfiles,
	Diagnostic<List<Avl.Segment2D>> diagScanSegments,
	Diagnostic<List<Avl.Rectangle2D>> diagSamplingAreas
)

Parameters

Name Type Range Default Description
inImageAvl.ImageInput image to fit arc to.
inFittingFieldAvl.ArcFittingFieldArc fitting field.
inFittingFieldAlignmentAtl.Optional<Avl.CoordinateSystem2D>Adjusts the fitting field to the position of the inspected object. Default value: atl::NIL.
inScanCountint<3, INF>10The number of points that will be searched to estimate the position of the arc. Default value: 10.
inScanWidthint<1, INF>5The width of each scan field (in pixels). Default value: 5.
inSamplingParamsAvl.SamplingParamsParameters controlling the sampling process.
inEdgeScanParamsAvl.EdgeScanParamsEdgeScanParams ( ProfileInterpolation: Quadratic4 SmoothingStdDev: 1.0f MinMagnitude: 5.0f EdgeTransition: BrightToDark )Parameters controlling the edge extraction process. Default value: EdgeScanParams ( ProfileInterpolation: Quadratic4 SmoothingStdDev: 1.0f MinMagnitude: 5.0f EdgeTransition: BrightToDark ).
inEdgeSelectionAvl.SelectionSelection mode of edges.
inLocalBlindnessAtl.Optional<Avl.LocalBlindness>Defines conditions in which weaker edges can be detected in the vicinity of stronger edges. Default value: atl::NIL.
inMaxIncompletenessfloat<0.0f, 0.999f>0.1fMaximal fraction of edge points not found. Default value: 0.1f.
inFittingMethodAvl.CircleFittingMethodAlgebraicTaubinMethod used to fit an arc. Default value: AlgebraicTaubin.
inOutlierSuppressionAtl.Optional<Avl.MEstimator>Selects a method for ignoring incorrectly detected points. Default value: atl::NIL.
outArcAtl.Conditional<Avl.Arc2D>Fitted arc or nothing if the fitting fails.
outEdgesAtl.Optional<System.Collections.Generic.List<Atl.Conditional<Avl.Edge1D>>>Found edges.
outDeviationProfileAtl.Optional<Atl.Conditional<Avl.Profile>>Profile of distances between the actual arc points and the corresponding reference arc points.
outAlignedFittingFieldAtl.Optional<Avl.ArcFittingField>Fitting field used; in the image coordinate system.
outInliersAtl.Optional<System.Collections.Generic.List<Avl.Point2D>>Points matching the fitting arc.
outBrightnessProfilesAtl.Optional<System.Collections.Generic.List<Avl.Profile>>Extracted image profiles.
outResponseProfilesAtl.Optional<System.Collections.Generic.List<Avl.Profile>>Profiles of the edge (derivative) operator response.
diagScanSegmentsAvl.Diagnostic<System.Collections.Generic.List<Avl.Segment2D>>Segments along which the scans were run.
diagSamplingAreasAvl.Diagnostic<System.Collections.Generic.List<Avl.Rectangle2D>>Areas from which the input image is sampled.

See also