face_sdk::fir_matching_score_table Class Reference

The object translates L2 distance between FIRs to -logFAR score which is used in FaceSDK.
Note, that for translation you should use different translation table for every version of Builder. See Matching table codes.
Note, FaceSDK doesn't expose functions to calculate L2 distance, you can only calculate it yourself and validate against -logFAR score provided in the FaceSDK.
More...

#include <fir_matching_score_table.h>

Public Member Functions
virtual float	distance_to_score (double distance, uint32_t firs_num) const =0
	Translates L2 distance between FIRs to -log(FAR) score. More...

Detailed Description

The object translates L2 distance between FIRs to -logFAR score which is used in FaceSDK.
Note, that for translation you should use different translation table for every version of Builder. See Matching table codes.
Note, FaceSDK doesn't expose functions to calculate L2 distance, you can only calculate it yourself and validate against -logFAR score provided in the FaceSDK.

Member Function Documentation

distance_to_score()

virtual float face_sdk::fir_matching_score_table::distance_to_score ( double  distance, uint32_t  firs_num  ) const

pure virtual

Translates L2 distance between FIRs to -log(FAR) score.

Parameters

distance	distance between FIRs.
firs_num	Warning! Use 1 by default. Do not use any other values unless you work with M:1 matching, use Builder 104 and have a clear understanding of these features.

Returns

-log(FAR) score for specified distance

---

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

• face_sdk_fir_matcher/fir_matching_score_table.h