boofcv.abst.feature.detect.interest

Class ConfigFastHessian

java.lang.Object

boofcv.abst.feature.detect.interest.ConfigFastHessian

All Implemented Interfaces:

Configuration, java.io.Serializable

public class ConfigFastHessian
extends java.lang.Object
implements Configuration

Configuration for FastHessianFeatureDetector plus feature extractor.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
float	detectThreshold Minimum feature intensity.
int	extractRadius Radius used for non-max-suppression.
int	initialSampleSize How often pixels are sampled in the first octave.
int	initialSize Typically 9.
int	maxFeaturesPerScale Number of features it will find or if ≤ 0 it will return all features it finds.
int	numberOfOctaves Typically 4.
int	numberScalesPerOctave Typically 4.
int	scaleStepSize Increment between kernel sizes as it goes up in scale.

Constructor Summary

Constructors

Constructor and Description
ConfigFastHessian()
ConfigFastHessian(float detectThreshold, int extractRadius, int maxFeaturesPerScale, int initialSampleSize, int initialSize, int numberScalesPerOctave, int numberOfOctaves)

Method Summary

Modifier and Type	Method and Description
void	checkValidity() Checks to see if the configuration is valid.

Methods inherited from class java.lang.Object

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

Field Detail

detectThreshold

public float detectThreshold

Minimum feature intensity. Image dependent. Start tuning at 1.

extractRadius

public int extractRadius

Radius used for non-max-suppression. Typically 1 or 2.

maxFeaturesPerScale

public int maxFeaturesPerScale

Number of features it will find or if ≤ 0 it will return all features it finds.

initialSampleSize

public int initialSampleSize

How often pixels are sampled in the first octave. Typically 1 or 2.

initialSize

public int initialSize

Typically 9.

numberScalesPerOctave

public int numberScalesPerOctave

Typically 4.

numberOfOctaves

public int numberOfOctaves

Typically 4.

scaleStepSize

public int scaleStepSize

Increment between kernel sizes as it goes up in scale. In some data sets, increasing this value beyound the default value results in an improvement in stability. Default 6

Constructor Detail

ConfigFastHessian

public ConfigFastHessian(float detectThreshold,
                         int extractRadius,
                         int maxFeaturesPerScale,
                         int initialSampleSize,
                         int initialSize,
                         int numberScalesPerOctave,
                         int numberOfOctaves)

ConfigFastHessian

public ConfigFastHessian()

Method Detail

checkValidity

public void checkValidity()

Description copied from interface: Configuration

Checks to see if the configuration is valid. If it is invalid, throw an exception explaining what is incorrect.

Specified by:

checkValidity in interface Configuration