Package org.anchoranalysis.image.inference.bean.reduce

Class RemoveOverlappingObjects

Object

AnchorBean<ReduceElements<ObjectMask>>

ReduceElements<ObjectMask>

ReduceElementsGreedy

RemoveOverlappingObjects

public class RemoveOverlappingObjects
extends ReduceElementsGreedy

Intersecting objects are removed if they have sufficient overlap.

This involves non-maximum suppression for object-masks using an Intersection over Union score.

A strategy for reducing elements that greedily removes any element with a strong overlap with another.

The highest-confidence element is always retained as a priority over lower-confidence elements.

The strength of the overlap is measured by a score with 0 <= score <= 1).

See Non-maximum suppression for a description of the algorithm.

Author:

Owen Feehan

Constructor Summary

Constructors

Constructor	Description
RemoveOverlappingObjects()

Method Summary

Modifier and Type	Method	Description
double	getScoreThreshold()	Bounding boxes with scores above this threshold are removed.
protected boolean	processObjects(ObjectForReduction source, ObjectForReduction overlapping, ReduceObjectsGraph graph)	Processes two objects.
void	setScoreThreshold(double scoreThreshold)	Bounding boxes with scores above this threshold are removed.
protected boolean	shouldObjectsBeProcessed(ObjectMask source, ObjectMask other)	Whether to include another (possibly-overlapping with source) element in processing?

Methods inherited from class org.anchoranalysis.image.inference.bean.reduce.ReduceElementsGreedy

reduce

Methods inherited from class org.anchoranalysis.bean.AnchorBean

checkMisconfigured, describeBean, describeChildren, duplicateBean, fields, findFieldsOfClass, getBeanName, getLocalPath, localise, toString

Methods inherited from class java.lang.Object

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

Constructor Details

RemoveOverlappingObjects

public RemoveOverlappingObjects()

Method Details

shouldObjectsBeProcessed

protected boolean shouldObjectsBeProcessed(ObjectMask source,
 ObjectMask other)

Description copied from class: ReduceElementsGreedy

Whether to include another (possibly-overlapping with source) element in processing?

Specified by:

shouldObjectsBeProcessed in class ReduceElementsGreedy

Parameters:

source - the element we are currently processing, for which we search for possibly overlapping element

other - another object which we are considering to include in processing (in conjunction with source).

Returns:

true iff other should be included in processing.

processObjects

protected boolean processObjects(ObjectForReduction source,
 ObjectForReduction overlapping,
 ReduceObjectsGraph graph)

Description copied from class: ReduceElementsGreedy

Processes two objects.

Specified by:

processObjects in class ReduceElementsGreedy

Parameters:

source - the element that is being processed as the source, the object with higher confidence.

overlapping - the element that is deemed to overlap with the sourceElement about which a decision is to be made.

graph - the graph relating objects to each other, and determining the priority for reduction.

Returns:

true if the source object was altered during processing, false if it was not.

getScoreThreshold

public double getScoreThreshold()

Bounding boxes with scores above this threshold are removed.

setScoreThreshold

public void setScoreThreshold(double scoreThreshold)

Bounding boxes with scores above this threshold are removed.