de.unihalle.informatik.MiToBo.features

Class MorphologyAnalyzer2DInProHelper

java.lang.Object

de.unihalle.informatik.MiToBo.features.MorphologyAnalyzer2DInProHelper

public class MorphologyAnalyzer2DInProHelper
extends Object

Helper functions for analyzing protrusions and indentations along a contour.

Author:

Birgit Moeller

Field Summary

Fields

Modifier and Type	Field and Description
private MTBImageRGB	debugInfoImg Debug image to visualize analysis results.
(package private) double	deltaXY Physical pixel resolution.
private int	height Height of reference image domain.
private MTBImage	labelImg Input label image.
private int	width Width of reference image domain.

Constructor Summary

Constructors

Constructor and Description
MorphologyAnalyzer2DInProHelper(int dwidth, int dheigth, double dxy, MTBImage lImg, MTBImageRGB debugImg) Default constructor.

Method Summary

Modifier and Type	Method and Description
private void	detectProtrusionsIndentations(MTBContour2D c, MorphologyAnalyzer2DInProData levelResult, double[] curvVals, int minProtrusionLength, int minIndentationLength) Method to detect significant indentations and protrusions along contour.
(package private) Vector<MorphologyAnalyzer2DInProData>	doProtrusionIndentationAnalysis(MTBContour2DSet contours, Vector<double[]> curvatureValues, int minProtrusionLength, int minIndentationLength) Method to perform analysis of intrusions/protrusions along contours.
private void	postprocessIndentationSegments(MorphologyAnalyzer2DInProData levelResult) Post-process indentation segments to get more information on protrusions.
private void	postprocessProtrusionSegments(MorphologyAnalyzer2DInProData levelResult) Post-process protrusion segments to get more information on indentations.
(package private) static void	removeShortRuns(int[] dirArray, int tSign, int minLength) Function to remove all sub-sequences of target shorter than the given minimum length by replacing them with negated target.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

debugInfoImg

private MTBImageRGB debugInfoImg

Debug image to visualize analysis results.

labelImg

private MTBImage labelImg

Input label image.

width

private int width

Width of reference image domain.

height

private int height

Height of reference image domain.

deltaXY

double deltaXY

Physical pixel resolution.

Attention, operator assumes square pixels!

Constructor Detail

MorphologyAnalyzer2DInProHelper

public MorphologyAnalyzer2DInProHelper(int dwidth,
                                       int dheigth,
                                       double dxy,
                                       MTBImage lImg,
                                       MTBImageRGB debugImg)

Default constructor.

Parameters:

dwidth - Width of reference image domain.

dheigth - Height of reference image domain.

dxy - Physical pixel resolution.

lImg - Label image to analysis.

debugImg - Debug info image.

Method Detail

doProtrusionIndentationAnalysis

Vector<MorphologyAnalyzer2DInProData> doProtrusionIndentationAnalysis(MTBContour2DSet contours,
                                                                      Vector<double[]> curvatureValues,
                                                                      int minProtrusionLength,
                                                                      int minIndentationLength)

Method to perform analysis of intrusions/protrusions along contours.

Parameters:

contours - Contours to analyze.

curvatureValues - Corresponding curvature values along contours.

minProtrusionLength - Minimal length for valid protrusions.

minIndentationLength - Minimal length for valid indentations.

Returns:

Vector of result data per contour.

detectProtrusionsIndentations

private void detectProtrusionsIndentations(MTBContour2D c,
                                           MorphologyAnalyzer2DInProData levelResult,
                                           double[] curvVals,
                                           int minProtrusionLength,
                                           int minIndentationLength)

Method to detect significant indentations and protrusions along contour.

Protrusions and indentations are required to have a certain length of at least the given number of pixels. This is tested first for protrusions and only afterwards for indentations. Note that changing this order can change results.

Parameters:

c - Contour to analyze.

levelResult - Result data object to fill.

curvVals - Curvature values along contour.

minProtrusionLength - Minimal length of valid protrusions.

minIndentationLength - Minimal length of valid indentations.

postprocessIndentationSegments

private void postprocessIndentationSegments(MorphologyAnalyzer2DInProData levelResult)

Post-process indentation segments to get more information on protrusions.

Here the boundary points of indentation regions are determined and different length measures are extracted.

Parameters:

levelResult - Result object containing data collected until now.

postprocessProtrusionSegments

private void postprocessProtrusionSegments(MorphologyAnalyzer2DInProData levelResult)

Post-process protrusion segments to get more information on indentations.

Here the boundary points of protrusion regions are determined and different length measures are extracted.

Parameters:

levelResult - Result object containing data collected until now.

removeShortRuns

static void removeShortRuns(int[] dirArray,
                            int tSign,
                            int minLength)

Function to remove all sub-sequences of target shorter than the given minimum length by replacing them with negated target.

Parameters:

dirArray - Array to modify.

tSign - Target sign of run to check for, should be 1 or -1.

minLength - Minimal required length of sequences of ones.