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FitPathToEdges3D_Direct
Header: | AVL.h |
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Namespace: | avl |
Module: | Vision3DStandard |
Performs a series of 1D edge detections in 3D and creates a path from the detected points.
Applications: Tracing of an object contour, whose rough location and shape is known beforehand.
Syntax
C++
C#
void avl::FitPathToEdges3D_Direct ( const avl::Surface& inSurface, const avl::PathFittingField& inFittingField, atl::Optional<const avl::CoordinateSystem2D&> inFittingFieldAlignment, atl::Optional<float> inScanStep, atl::Optional<float> inSamplingStep, int inScanWidth, const avl::InterpolationMethod::Type inSurfaceInterpolation, const avl::EdgeScanParams3D& inEdgeScanParams, avl::Selection::Type inEdgeSelection, atl::Optional<const avl::LocalBlindness&> inLocalBlindness, atl::Optional<int> inMaxProfileGapWidth, atl::Optional<int> inMaxPathInterpolationLength, atl::Optional<float> inMaxDeviationDelta, float inMaxIncompleteness, atl::Conditional<atl::Array<avl::Point3D> >& outPath, atl::Optional<atl::Array<atl::Conditional<avl::SurfaceEdge1D>>&> outEdges = atl::NIL, atl::Optional<atl::Conditional<avl::Profile>&> outDeviationProfile = atl::NIL, atl::Optional<avl::PathFittingField&> outAlignedFittingField = atl::NIL, atl::Optional<atl::Array<avl::Profile>&> outHeightProfiles = atl::NIL, atl::Optional<atl::Array<avl::Profile>&> outResponseProfiles = atl::NIL, atl::Optional<atl::Conditional<atl::Array<avl::Segment3D> >&> outPathSegments = atl::NIL, atl::Array<avl::Segment2D>& diagScanSegments, atl::Array<avl::Rectangle2D>& diagSamplingAreas )
Parameters
Name | Type | Range | Default | Description | |
---|---|---|---|---|---|
inSurface | const Surface& | Surface to fit path to | |||
inFittingField | const PathFittingField& | Path fitting field | |||
inFittingFieldAlignment | Optional<const CoordinateSystem2D&> | NIL | Adjusts the fitting field to the position of the inspected object | ||
inScanStep | Optional<float> | 0.0 - | 5.0f | Optional implicit conversion of the input path to an equidistant one | |
inSamplingStep | Optional<float> | 0.0 - | NIL | Desired distance between consecutive sampling points on the scan segments; if Nil, the bigger of surface X and Y scales is chosen | |
inScanWidth | int | 1 - | 5 | The width of each scan field (in pixels) | |
inSurfaceInterpolation | const InterpolationMethod::Type | Bilinear | Interpolation method used for extraction of surface points | ||
inEdgeScanParams | const EdgeScanParams3D& | EdgeScanParams3D ( ProfileInterpolation: Quadratic4 SmoothingStdDev: 1.0f MinMagnitude: 5.0f EdgeTransition: LowToHigh ) | Parameters controlling the edge extraction process | ||
inEdgeSelection | Selection::Type | Selection mode of edges | |||
inLocalBlindness | Optional<const LocalBlindness&> | NIL | Defines conditions in which weaker edges can be detected in the vicinity of stronger edges | ||
inMaxProfileGapWidth | Optional<int> | 0 - | 1 | Maximal number of consecutive not existing profile points | |
inMaxPathInterpolationLength | Optional<int> | 0 - | 1 | Maximal number of consecutive points not found | |
inMaxDeviationDelta | Optional<float> | 0.0 - | NIL | Maximal difference between deviations of consecutive path points | |
inMaxIncompleteness | float | 0.0 - 0.999 | 0.1f | Maximal fraction of edge points not found | |
outPath | Conditional<Array<Point3D> >& | Fitted path or nothing if the fitting failed | |||
outEdges | Optional<Array<Conditional<SurfaceEdge1D>>&> | NIL | Found edges | ||
outDeviationProfile | Optional<Conditional<Profile>&> | NIL | Profile of distances between the actual path points and the corresponding reference path points | ||
outAlignedFittingField | Optional<PathFittingField&> | NIL | Fitting field used; in the image coordinate system | ||
outHeightProfiles | Optional<Array<Profile>&> | NIL | Extracted surface height profiles | ||
outResponseProfiles | Optional<Array<Profile>&> | NIL | Profiles of the edge (derivative) operator response | ||
outPathSegments | Optional<Conditional<Array<Segment3D> >&> | NIL | Segments of the fitted path or nothing if the fitting failed | ||
diagScanSegments | Array<Segment2D>& | Segments along which the scans were run | |||
diagSamplingAreas | Array<Rectangle2D>& | Areas from which the input image is sampled |
Optional Outputs
The computation of following outputs can be switched off by passing value atl::NIL
to these parameters: outEdges, outDeviationProfile, outAlignedFittingField, outHeightProfiles, outResponseProfiles, outPathSegments.
Read more about Optional Outputs.
Hardware Acceleration
This operation supports automatic parallelization for multicore and multiprocessor systems.
Errors
List of possible exceptions:
Error type | Description |
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DomainError | Sampling step set to zero in FitPathToEdges3D. |