EdgeDetectionResult Class Reference

A set of parameters that stores the result from an edge detection. More...

#include <cvb/foundation/calibration_line_scan.hpp>

Public Member Functions
std::vector< int >	ScanLineIndices () const noexcept
	Gets the indices of the scan-lines. More...
std::vector< double >	EdgeIndices () const noexcept
	Gets the indices of edges for each scan-line. More...
int	NumProfiles () const noexcept
	Gets the number of scan-line where edges are correctly detected. More...
int	NumEdgesPerProfile () const noexcept
	Gets the number of edges per unit profile. More...

Friends
std::unique_ptr< LineScanCalibrator >	CreateLineScanCalibration (const Point2D< double > &calibrationPoint1, const Point2D< double > &calibrationPoint2, double referenceDistanceCalibrationPoints, const EdgeDetectionResult &edgeDetectionResult, double referenceWidthStripes, const LineScanCalibrationConfiguration &configuration)
	Calibrates line-scan cameras. More...

Detailed Description

A set of parameters that stores the result from an edge detection.

Member Function Documentation

EdgeIndices()

std::vector< double > EdgeIndices ( ) const

inlinenoexcept

Gets the indices of edges for each scan-line.

Returns

The indices of edges for each scan-line.

Exceptions

Does	not throw any exception.

NumEdgesPerProfile()

int NumEdgesPerProfile ( ) const

inlinenoexcept

Gets the number of edges per unit profile.

Returns

The number of edges per unit profile.

Exceptions

Does	not throw any exception.

NumProfiles()

int NumProfiles ( ) const

inlinenoexcept

Gets the number of scan-line where edges are correctly detected.

Returns

The number of scan-line where edges are correctly detected.

Exceptions

Does	not throw any exception.

ScanLineIndices()

std::vector< int > ScanLineIndices ( ) const

inlinenoexcept

Gets the indices of the scan-lines.

Returns

The indices of the scan-lines.

Exceptions

Does	not throw any exception.

Friends And Related Function Documentation

CreateLineScanCalibration

std::unique_ptr< LineScanCalibrator > CreateLineScanCalibration ( const Point2D< double > &  calibrationPoint1, const Point2D< double > &  calibrationPoint2, double  referenceDistanceCalibrationPoints, const EdgeDetectionResult &  edgeDetectionResult, double  referenceWidthStripes, const LineScanCalibrationConfiguration &  configuration  )

friend

Calibrates line-scan cameras.

Parameters

[in]	calibrationPoint1	First calibration point (left or top).
[in]	calibrationPoint2	Second calibration point (right or bottom).
[in]	referenceDistanceCalibrationPoints	Reference distance between the two calibration points (same units as referenceWidthStripes).
[in]	edgeDetectionResult	Result returned by DetectEdgesOfStripeTarget.
[in]	referenceWidthStripes	Reference width of stripes in calibration pattern (same units as referenceDistanceCalibrationPoints).
[in]	configuration	Configuration of line-scan calibration.

Returns

A line-scan calibrator including a transformation and its quality.

The transformation result includes a 3rd order polynomial for the line calibration and a factor to correct the movement direction. Note, that x and y do not depend on each other. All mixed coefficients are zero.

For the calibration of the movement direction, an image containing two calibration dots is needed. The pixel coordinates of the dots calibrationPoint1 and calibrationPoint2 are calculated by the function CalculateTwoPointsForCalibrationOfMovement.

This function needs these coordinates and the reference distance between the dots referenceDistanceCalibrationPoints.

For the line-scan calibration, an image of a pattern with alternating black and white stripes has to be acquired. Also, the width of the stripes referenceWidthStripes has to be given as reference.