boofcv.alg.feature.detdesc

Class CompleteSift

java.lang.Object

boofcv.alg.feature.detect.interest.SiftDetector

boofcv.alg.feature.detdesc.CompleteSift

public class CompleteSift
extends SiftDetector

SIFT combined together to simultaneously detect and describe the key points it finds. Memory is conserved by only having one octave of the scale-space in memory at any given time.

See Also:

OrientationHistogramSift, DescribePointSift, SiftDetector

Field Summary

Fields inherited from class boofcv.alg.feature.detect.interest.SiftDetector

detections, pixelScaleToInput, scaleSpace

Constructor Summary

Constructors

Constructor and Description
CompleteSift(SiftScaleSpace scaleSpace, double edgeR, NonMaxLimiter extractor, OrientationHistogramSift<boofcv.struct.image.GrayF32> orientation, DescribePointSift<boofcv.struct.image.GrayF32> describe) Configures SIFT

Method Summary

Modifier and Type	Method and Description
protected void	detectFeatures(int scaleIndex) Detect features inside the Difference-of-Gaussian image at the current scale
org.ddogleg.struct.FastQueue<BrightFeature>	getDescriptions()
int	getDescriptorLength()
org.ddogleg.struct.FastQueue<ScalePoint>	getLocations()
org.ddogleg.struct.GrowQueue_F64	getOrientations()
protected void	handleDetection(ScalePoint p) Function for handling a detected point.
void	process(boofcv.struct.image.GrayF32 input) Detects SIFT features inside the input image

Methods inherited from class boofcv.alg.feature.detect.interest.SiftDetector

getDetections, processFeatureCandidate

Methods inherited from class java.lang.Object

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

Constructor Detail

CompleteSift

public CompleteSift(SiftScaleSpace scaleSpace,
                    double edgeR,
                    NonMaxLimiter extractor,
                    OrientationHistogramSift<boofcv.struct.image.GrayF32> orientation,
                    DescribePointSift<boofcv.struct.image.GrayF32> describe)

Configures SIFT

Parameters:

scaleSpace - Scale-space that features are computed inside of

edgeR - Edge threshold. See SiftDetector.SiftDetector(SiftScaleSpace, double, NonMaxLimiter)

extractor - Finds minimums and maximums. See SiftDetector.SiftDetector(SiftScaleSpace, double, NonMaxLimiter)

orientation - Estimates feature orientation(s)

describe - Describes a SIFT feature

Method Detail

process

public void process(boofcv.struct.image.GrayF32 input)

Description copied from class: SiftDetector

Detects SIFT features inside the input image

Overrides:

process in class SiftDetector

Parameters:

input - Input image. Not modified.

detectFeatures

protected void detectFeatures(int scaleIndex)

Description copied from class: SiftDetector

Detect features inside the Difference-of-Gaussian image at the current scale

Overrides:

detectFeatures in class SiftDetector

Parameters:

scaleIndex - Which scale in the octave is it detecting features inside up. Primarily provided here for use in child classes.

handleDetection

protected void handleDetection(ScalePoint p)

Description copied from class: SiftDetector

Function for handling a detected point. Does nothing here, but can be used by a child class to process detections

Overrides:

handleDetection in class SiftDetector

Parameters:

p - Detected point in scale-space.

getLocations

public org.ddogleg.struct.FastQueue<ScalePoint> getLocations()

getDescriptions

public org.ddogleg.struct.FastQueue<BrightFeature> getDescriptions()

getOrientations

public org.ddogleg.struct.GrowQueue_F64 getOrientations()

getDescriptorLength

public int getDescriptorLength()