com.openinventor.imageviz.engines.imageanalysis.morphometry

Class SoInertiaMomentProcessing2d

java.lang.Object

com.openinventor.inventor.Inventor

com.openinventor.inventor.misc.SoBase

com.openinventor.inventor.fields.SoFieldContainer

com.openinventor.inventor.engines.SoEngine

com.openinventor.imageviz.engines.SoImageVizEngine

com.openinventor.imageviz.engines.imageanalysis.morphometry.SoInertiaMomentProcessing2d

All Implemented Interfaces:

SafeDisposable

public class SoInertiaMomentProcessing2d
extends SoImageVizEngine

SoInertiaMomentProcessing2d measures the resistance of an object to changes in its motion around a given axis of rotation. This class computes a measure of an object's resistance to changes in its rotational motion. The moment of inertia of an object on a given axis describes how difficult it is to change its angular motion around that axis.

For a point mass m the moment of inertia I is simply m times the square perpendicular distance r from the axis of rotation:

On a digital image a pixel intensity can be considered as a mass. Then for an object of a binary image, m is a constant equal to 1. Thus, the moment of inertia is the sum of the square perpendicular distances from the axis: Where:

• x is an object pixel
• p(x) is the orthogonal projection of x onto the axis of rotation.

The rotation axis is defined by a point (rotationCenterX and rotationCenterY) and an orientation (rotationAngle).

File format/default:

InertiaMomentProcessing2d {

inBinaryImage	NULL
rotationCenterX	1024
rotationCenterY	1024
rotationAngle	10.0f

}

Library references: inertia_moment

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SoInertiaMomentProcessing2d.SbMeanInertiaMomentDetail Results details of mean inertia moment global measure.

Nested classes/interfaces inherited from class com.openinventor.imageviz.engines.SoImageVizEngine

SoImageVizEngine.ComputeModes, SoImageVizEngine.EventArg, SoImageVizEngine.Neighborhood3ds

Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor

Inventor.ConstructorCommand

Field Summary

Fields

Modifier and Type	Field and Description
SoSFImageDataAdapter	inBinaryImage The input binary image.
SoImageVizEngineAnalysisOutput<SoInertiaMomentProcessing2d.SbMeanInertiaMomentDetail>	outResult The output measure result.
SoSFFloat	rotationAngle The orientation of the rotation axis in degrees (not radians).
SoSFInt32	rotationCenterX The X coordinate of the rotation axis.
SoSFInt32	rotationCenterY The Y coordinate of the rotation axis.

Fields inherited from class com.openinventor.imageviz.engines.SoImageVizEngine

CONNECTIVITY_18, CONNECTIVITY_26, CONNECTIVITY_6, MODE_2D, MODE_3D, MODE_AUTO, onBegin, onEnd, onProgress

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor and Description
SoInertiaMomentProcessing2d() Constructor.

Method Summary

Methods inherited from class com.openinventor.imageviz.engines.SoImageVizEngine

abortEvaluate, isEvaluating, startEvaluate, waitEvaluate

Methods inherited from class com.openinventor.inventor.engines.SoEngine

copy, getByName, getOutput, getOutputName

Methods inherited from class com.openinventor.inventor.fields.SoFieldContainer

copyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaults

Methods inherited from class com.openinventor.inventor.misc.SoBase

dispose, getEXTERNPROTO, getName, getPROTO, isDisposable, isSynchronizable, setName, setSynchronizable, touch

Methods inherited from class com.openinventor.inventor.Inventor

getAddress, getNativeResourceHandle, startInternalThreads, stopInternalThreads

Methods inherited from class java.lang.Object

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

Field Detail

inBinaryImage

public final SoSFImageDataAdapter inBinaryImage

The input binary image. Default value is NULL. Supported types include: binary color image.

rotationCenterX

public final SoSFInt32 rotationCenterX

The X coordinate of the rotation axis. Default value is 1024.

rotationCenterY

public final SoSFInt32 rotationCenterY

The Y coordinate of the rotation axis. Default value is 1024.

rotationAngle

public final SoSFFloat rotationAngle

The orientation of the rotation axis in degrees (not radians). A positive value means that the angle is taken from the positive X axis to the postive Y axis. Default value is 10.0f.

outResult

public final SoImageVizEngineAnalysisOutput<SoInertiaMomentProcessing2d.SbMeanInertiaMomentDetail> outResult

The output measure result. Default value is NULL.

Constructor Detail

SoInertiaMomentProcessing2d

public SoInertiaMomentProcessing2d()

Constructor.