boofcv.abst.feature.detect.interest

Interface FoundPointSO

All Known Subinterfaces:

DetectDescribePoint<T,Desc>, InterestPointDetector<T>

All Known Implementing Classes:

DetectDescribeFusion, GeneralToInterestPoint, InterestPointDetectorOverride, SurfMultiSpectral_to_DetectDescribePoint, WrapDetectDescribeSift, WrapDetectDescribeSurf, WrapFHtoInterestPoint, WrapFLPtoInterestPoint, WrapFPtoInterestPoint, WrapSiftDetector

public interface FoundPointSO

List of detected features that are invariant to scale and in-plane rotation. PointSO is short for Point Scale-Orientation.

Author:

Peter Abeles

Method Summary

Methods

Modifier and Type	Method and Description
georegression.struct.point.Point2D_F64	getLocation(int featureIndex) The center location of the feature inside the image.
int	getNumberOfFeatures() Returns the number of interest points found.
double	getOrientation(int featureIndex) Returns the features found orientation.
double	getScale(int featureIndex) Scale of the detected feature in scale space.

Method Detail

getNumberOfFeatures

int getNumberOfFeatures()

Returns the number of interest points found.

Returns:

Number of interest points.

getLocation

georegression.struct.point.Point2D_F64 getLocation(int featureIndex)

The center location of the feature inside the image.

WARNING: Do not save the returned reference, copy instead. The returned point can be recycled each time this function is called.

Parameters:

featureIndex - The feature's index.

Returns:

Location of the feature in image pixels.

getScale

double getScale(int featureIndex)

Scale of the detected feature in scale space. This is the standard deviation of the Gaussian blur applied to the image when the feature was detected. While the object's size is not exactly defined, multiplying this number by 2.5 or 3 is typically considered the object's radius.

NOTE: In the future this might be changed to getRadius() to remove any ambiguity over the detected object's size.

Parameters:

featureIndex - Feature whose scale is being requested.

Returns:

Size of the interest point relative to canonical size.

getOrientation

double getOrientation(int featureIndex)

Returns the features found orientation.

Parameters:

featureIndex - Feature whose

Returns:

Orientation in radians.