Class SoDegreeOfAnisotropyQuantification
- java.lang.Object
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- com.openinventor.inventor.Inventor
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- com.openinventor.inventor.misc.SoBase
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- com.openinventor.inventor.fields.SoFieldContainer
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- com.openinventor.inventor.engines.SoEngine
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- com.openinventor.imageviz.engines.SoImageVizEngine
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- com.openinventor.imageviz.engines.imageanalysis.morphometry.SoDegreeOfAnisotropyQuantification
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- All Implemented Interfaces:
SafeDisposable
public class SoDegreeOfAnisotropyQuantification extends SoImageVizEngine
SoDegreeOfAnisotropyQuantification
engine. TheSoDegreeOfAnisotropyQuantification
engine measures a 3D symmetryFor an introduction, see section Morphometry.
This engine computes a measure of 3D symmetry. It is a good indicator to detect structural alignments along particular directional axis. This engine uses mean intercept length and eigen value analysis.
Mean intercept length analysis allows the user to measure isotropy of a structure. It proceeds sending a set of oriented ray through the binarised 3D image volume. For each ray, the number of objects encountered is counted. A set of discreet angles are processed as described and for each one an averaged is done by using a regularly spaced grid of rays. The
SoDegreeOfAnisotropyQuantification.interceptDistance
field is the distance between two lines intercept. The pitch angle is fixed at 10 degrees (not radians).A classical eigen value analysis of this cloud of values (mean of number of intersect in function of angle) is then done. This analysis allows one to extract a minimal and a maximal eigen value. The closest these values are, the less the structural anisotropy is. Indeed maximum and minimum eigen values equality means that their is no privileged structural direction.
Degree of anisotropy is 0 for total isotropy and 1 for total anisotropy.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
SoDegreeOfAnisotropyQuantification.SbAnisotropyDegreeDetail
Results details of degree of anisotropy global measure.-
Nested classes/interfaces inherited from class com.openinventor.imageviz.engines.SoImageVizEngine
SoImageVizEngine.ComputeModes, SoImageVizEngine.EventArg, SoImageVizEngine.Neighborhood3ds
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Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor
Inventor.ConstructorCommand
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Field Summary
Fields Modifier and Type Field Description SoSFEnum<SoImageVizEngine.ComputeModes>
computeMode
Select the compute Mode (2D or 3D or AUTO) .SoSFImageDataAdapter
inBinaryImage
The input binary image.SoSFInt32
interceptDistance
The distance between two intercept lines.SoImageVizEngineAnalysisOutput<SoDegreeOfAnisotropyQuantification.SbAnisotropyDegreeDetail>
outResult
The output measure result.-
Fields inherited from class com.openinventor.imageviz.engines.SoImageVizEngine
onBegin, onEnd, onProgress
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Fields inherited from class com.openinventor.inventor.Inventor
VERBOSE_LEVEL, ZeroHandle
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Constructor Summary
Constructors Constructor Description SoDegreeOfAnisotropyQuantification()
Constructor.
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Method Summary
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Methods inherited from class com.openinventor.imageviz.engines.SoImageVizEngine
abortEvaluate, isEvaluating, startEvaluate, waitEvaluate
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Methods inherited from class com.openinventor.inventor.engines.SoEngine
copy, getByName, getOutput, getOutputName
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Methods inherited from class com.openinventor.inventor.fields.SoFieldContainer
copyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaults
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Methods inherited from class com.openinventor.inventor.misc.SoBase
dispose, getName, isDisposable, isSynchronizable, setName, setSynchronizable, touch
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Methods inherited from class com.openinventor.inventor.Inventor
getNativeResourceHandle
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Field Detail
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computeMode
public final SoSFEnum<SoImageVizEngine.ComputeModes> computeMode
Select the compute Mode (2D or 3D or AUTO) . Default is MODE_AUTO
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inBinaryImage
public final SoSFImageDataAdapter inBinaryImage
The input binary image. Default value is NULL. Supported types include: binary color image.
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interceptDistance
public final SoSFInt32 interceptDistance
The distance between two intercept lines. Default value is 3.
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outResult
public final SoImageVizEngineAnalysisOutput<SoDegreeOfAnisotropyQuantification.SbAnisotropyDegreeDetail> outResult
The output measure result. Default value is NULL.
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