Validates prints against gallery. More...

#include <Applicant.h>

Collaboration diagram for FlatteningValidation:

Public Member Functions
std::shared_ptr< ExtractedPrint >	GetInvalidatingPrint () const
	Function provides ExtractedPrint that causes invalidity of probe.
bool	Validate (const std::shared_ptr< ExtractedPrint > &probe, const std::vector< std::shared_ptr< ExtractedPrint > > &gallery) final
	Check if print is valid.
	FlatteningValidation (SimilarityThreshold samePositionThreshold, SimilarityThreshold differentPositionThreshold, ICSMatcher &printMatcher)
	Construct a new Flattening Validation object.
	FlatteningValidation ()=default
	Construct a new Flattening Validation default object.

Detailed Description

Validates prints against gallery.

Print is valid in following scenarios:

When has same position and Similarity Score is above or equal Similarity Threshold given in constructor for same position
When has different position and Similarity Score is below or equal Similarity Threshold given in constructor for different position.

Constructor & Destructor Documentation

◆ FlatteningValidation() [1/2]

FlatteningValidation	(	SimilarityThreshold	samePositionThreshold,
		SimilarityThreshold	differentPositionThreshold,
		ICSMatcher &	printMatcher )

inline

Construct a new Flattening Validation object.

Parameters

samePositionThreshold	is SimilarityThreshold below which is validated Fingerprint considered as invalid when verified fingerprints have same position.
differentPositionThreshold	is SimilarityThreshold above which is validated Fingerprint considered as invalid when verified fingerprints have different position.
printMatcher	PrintMatcher to find already enrolled print

Referenced by FlatteningValidation().

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◆ FlatteningValidation() [2/2]

FlatteningValidation ( )

default

Construct a new Flattening Validation default object.

same position threshold is 40
different position threshold is 15

The default thresholds are choosen with regard to measured False Acceptance Rate.

Probe Fingers	Enrolled Fingers	Threshold at FAR=%1	Threshold at FAR=%0.1	Threshold at FAR=%0.01
1	1	20	30	40
1	10	30	40	50

References FlatteningValidation().

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Member Function Documentation

◆ GetInvalidatingPrint()

std::shared_ptr< ExtractedPrint > GetInvalidatingPrint ( ) const

inline

Function provides ExtractedPrint that causes invalidity of probe.

Returns: ExtractedPrint that causes invalidity of probe

Referenced by Applicant::AddUniquePrint().

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◆ Validate()

bool Validate	(	const std::shared_ptr< ExtractedPrint > &	probe,
		const std::vector< std::shared_ptr< ExtractedPrint > > &	gallery )

inlinefinalvirtual

Check if print is valid.

Fingerprint is valid in following scenarios:

When has same position and Similarity Score is above or equal Similarity Threshold given in constructor for same position
When has different position and Similarity Score is below or equal Similarity Threshold given in constructor for different position.

It returns enrolled print that causes invalidity of currently enrolling Print To realize in which scenario fails, you can check prints position.

Parameters

probe	Print to be checked
gallery	Prints that are already validated

Returns: true when print is valid; false when there is a dissimilar ExtractedPrint with same position as ExtractedPrint in gallery; false when there is a similar ExtractedPrint with different position as ExtractedPrint in gallery

Exceptions

NullArgumentException	when probe is null
NullArgumentException	when probe print is null

Implements ApplicantPrintValidation.

The documentation for this class was generated from the following file:

Applicant.h