how to analyse OpenBr result of face recognition

Question

i succeded running openbr face recognition using command below.

$ br -algorithm FaceRecognition \
    -compare ../data/MEDS/img/S354-01-t10_01.jpg ../data/MEDS/img/S354-02-t10_01.jpg \
     -compare ../data/MEDS/img/S354-01-t10_01.jpg ../data/MEDS/img/S386-04-t10_01.jpg

i am getting output like this.

$ Set algorithm to FaceRecognition
$ Loading /usr/local/share/openbr/models/algorithms/FaceRecognition
$ Loading /usr/local/share/openbr/models/transforms//FaceRecognitionExtraction
$ Loading /usr/local/share/openbr/models/transforms//FaceRecognitionEmbedding
$ Loading /usr/local/share/openbr/models/transforms//FaceRecognitionQuantization
$ Comparing ../data/MEDS/img/S354-01-t10_01.jpg and ../data/MEDS/img/S354-02-t10_01.jpg
$ Enrolling ../data/MEDS/img/S354-01-t10_01.jpg to S354-01-t10_01r7Rv4W.mem
$ 100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
$ 100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
$ 1.8812
$ Comparing ../data/MEDS/img/S354-01-t10_01.jpg and ../data/MEDS/img/S386-04-t10_01.jpg
$ Enrolling ../data/MEDS/img/S354-01-t10_01.jpg to S354-01-t10_01r7Rv4W.mem
$ 100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
$ 100.00%  ELAPSED=00:00:00  REMAINING=00:00:00  COUNT=1
$ 0.571219

What is the meaning of values 1.8812,0.571219? From these values how can i know if faces are matching?

Answer 1

Openbr evaluates by a scoring system how much an individual looks like another, and those values ​​should range from 0 to 1, closer to 1 means that the system achieved recognition, so that closer to 0 means that the response to recognition was bad. In this example, the program returned 1.8812 a value greater than 1, I think it should be a bug, but after testing quite openbr I realized that the higher the score, the greater the similarity between the comparison.