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FitSegmentToRidges3D


Module: Vision3DStandard

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

Applications

Precise detection of a thin straight line, whose rough location is known beforehand.
Name Type Range Description
Input value inSurface Surface Surface to fit the segment to
Input value inFittingField SegmentFittingField Segment fitting field
Input value inFittingFieldAlignment CoordinateSystem2D* Adjusts the fitting field to the position of the inspected object
Input value inScanCount Integer 3 - The number of points that will be searched to estimate the position of the segment
Input value inSamplingStep Real* 0.0 - Desired distance between consecutive sampling points on the scan segments; if Nil, the bigger of surface X and Y scales is chosen
Input value inScanWidth Integer 1 - The width of each scan field (in pixels)
Input value inSurfaceInterpolation InterpolationMethod Interpolation method used for extraction of surface points
Input value inRidgeScanParams RidgeScanParams3D Parameters controlling the ridge extraction process
Input value inRidgeSelection Selection Selection mode of ridges
Input value inLocalBlindness LocalBlindness* Defines conditions in which weaker ridges can be detected in the vicinity of stronger ridges
Input value inMaxProfileGapWidth Integer* 0 - Maximal number of consecutive not existing profile points
Input value inMaxIncompleteness Real 0.0 - 0.999 Maximal fraction of ridge points not found
Input value inOutlierSuppression MEstimator* Selects a method for ignoring incorrectly detected points
Output value outSegment Segment3D? Fitted segment or nothing if the fitting fails
Output value outRidges SurfaceRidge1D?Array Found ridges
Output value outDeviationProfile Profile? Profile of distances between the actual segment points and the corresponding reference segment points
Output value outAlignedFittingField SegmentFittingField Fitting field used; in the image coordinate system
Output value outInliers Point3DArray Points matching the fitting segment
Output value outHeightProfiles ProfileArray Extracted surface height profiles
Output value outResponseProfiles ProfileArray Profiles of the ridge operator response
Diagnostic input diagScanSegments Segment2DArray Segments along which the scans were run
Diagnostic input diagSamplingAreas Rectangle2DArray Areas from which the input image is sampled

Hardware Acceleration

This operation supports automatic parallelization for multicore and multiprocessor systems.

Errors

This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type Description
DomainError Ridge operator parameters are too low in surface ridges detector in FitSegmentToRidges3D.
DomainError Sampling step set to zero in FitSegmentToRidges3D.

Complexity Level

This filter is available on Basic Complexity Level.

Filter Group

This filter is member of FitSegment3D filter group.