com.openinventor.imageviz.engines.imagesegmentation.computationalgeometry

Class SoObjectToSegmentApproximation2d

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.imagesegmentation.computationalgeometry.SoObjectToSegmentApproximation2d

All Implemented Interfaces:

SafeDisposable

public class SoObjectToSegmentApproximation2d
extends SoImageVizEngine

SoObjectToSegmentApproximation2d engine The SoObjectToSegmentApproximation2d engine computes the polygonal approximation of object boundaries.

For an introduction, see section Discrete Geometry.

The SoObjectToSegmentApproximation2d engine first extracts chains from objects edges. Then it applies the dichotomous polygonal approximation. This operation consists in converting chains into segments by approximating the polygons of linear segments. It provides the outlines of the polygons.

File format/default:

ObjectToSegmentApproximation2d {

inObjectImage	NULL
minArea	5
maxPointNumber	256000
maxDistance	1.5f

}

Library references: seg_approx

Nested Class Summary

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	inObjectImage The input binary or label image.
SoSFFloat	maxDistance The maximum distance in pixels between curve and segment.
SoSFInt32	maxPointNumber The maximum number of processed pixels.
SoSFInt32	minArea The minimum surface of kept cells.
SoImageVizEngineOutput<SoSFSegmentChain,SoSegmentChain>	outSegment The output segment.

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
SoObjectToSegmentApproximation2d() 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

inObjectImage

public final SoSFImageDataAdapter inObjectImage

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

minArea

public final SoSFInt32 minArea

The minimum surface of kept cells. Default value is 5.

maxPointNumber

public final SoSFInt32 maxPointNumber

The maximum number of processed pixels. Default value is 256000.

maxDistance

public final SoSFFloat maxDistance

The maximum distance in pixels between curve and segment. Default value is 1.5f.

outSegment

public final SoImageVizEngineOutput<SoSFSegmentChain,SoSegmentChain> outSegment

The output segment. Default value is NULL.

Constructor Detail

SoObjectToSegmentApproximation2d

public SoObjectToSegmentApproximation2d()

Constructor.