com.openinventor.imageviz.engines.arithmeticandlogic.arithmeticoperations

Class SoEigenDecompositionProcessing2d

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.arithmeticandlogic.arithmeticoperations.SoEigenDecompositionProcessing2d

All Implemented Interfaces:

SafeDisposable

public class SoEigenDecompositionProcessing2d
extends SoImageVizEngine

The SoEigenDecompositionProcessing2d engine computes the local eigenvectors and eigenvalues of a 2D matrix image. The input image must have three channels, where each channel contains one of the unique components of a 2x2 symmetric matrix. (The redundant fourth component is not necessary.) This engine creates output images containing the eigenvectors and/or eigenvalues of the input matrix image.

Let be the matrix at position .
,
and ,
where is the spectral component value at the spatial position .

See also:

SoEigenDecompositionProcessing3d, SoHessianMatrixProcessing2d, SoHessianMatrixProcessing3d

File format/default:

EigenDecompositionProcessing2d {

inSymmetricMatrixImage	NULL
outputSelection	EIGEN_VECTOR_1 | EIGEN_VECTOR_2 | EIGEN_VALUES

}

Library references: eigendecomposition

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SoEigenDecompositionProcessing2d.OutputSelections This enum defines the different outputs that can be selected.

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	inSymmetricMatrixImage A matrix image containing symmetric 2x2 matrices.
SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter>	outEigenValuesImage Eigenvalues image.
SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter>	outEigenVector1Image Eigenvector image containing the largest eigen value.
SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter>	outEigenVector2Image Eigenvector image containing the smallest eigen value.
SoSFBitMask<SoEigenDecompositionProcessing2d.OutputSelections>	outputSelection Enable computation of selected outputs.

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

onBegin, onEnd, onProgress

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor and Description
SoEigenDecompositionProcessing2d() 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, getName, isDisposable, isSynchronizable, setName, setSynchronizable, touch

Methods inherited from class com.openinventor.inventor.Inventor

getNativeResourceHandle

Methods inherited from class java.lang.Object

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

Field Detail

inSymmetricMatrixImage

public final SoSFImageDataAdapter inSymmetricMatrixImage

A matrix image containing symmetric 2x2 matrices. The image type must be float. The number of channels must be 3 in the following order: where is a symmetric matrix.
Default value is NULL. Supported types include: grayscale color image.

outputSelection

public final SoSFBitMask<SoEigenDecompositionProcessing2d.OutputSelections> outputSelection

Enable computation of selected outputs. . Default is EIGEN_VECTOR_1 | EIGEN_VECTOR_2 | EIGEN_VALUES

outEigenVector1Image

public final SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter> outEigenVector1Image

Eigenvector image containing the largest eigen value. The IJK dimensions of the output image are the same as the input but the number of channels is 2 (channel 0 = x, channel 1 = y). The calibration (voxel size, origin, orientation) is forced to the same values as the input. The voxel type is forced to float. Default value is NULL. Supported types include: grayscale binary label image.

outEigenVector2Image

public final SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter> outEigenVector2Image

Eigenvector image containing the smallest eigen value. The IJK dimensions of the output image are the same as the input but the number of channels is 2 (channel 0 = x, channel 1 = y). The calibration (voxel size, origin, orientation) is forced to the same values as the input. The voxel type is forced to float. Default value is NULL. Supported types include: grayscale binary label image.

outEigenValuesImage

public final SoImageVizEngineOutput<SoSFImageDataAdapter,SoImageDataAdapter> outEigenValuesImage

Eigenvalues image. The IJK dimensions of the output image are the same as the input but the number of channels is 2 (channel 0 = largest Eigen value, channel 1 = smallest Eigen value). The calibration (voxel size, origin, orientation) is forced to the same values as the input. The voxel type is forced to float. Default value is NULL. Supported types include: grayscale binary label color image.

Constructor Detail

SoEigenDecompositionProcessing2d

public SoEigenDecompositionProcessing2d()

Constructor.