Patent ID: 9747494
Date: 2017-08-29
CPC Classifications: G06K

Claim:
1. A computer-implemented method for recognizing facial images, the method implemented by a facial verification system having a processor and a memory coupled to the processor, the method comprising: obtaining (i) a verification facial image including a plurality of registration points, and (ii) a query identifier associated with the verification facial image; extracting a verification template based on the plurality of registration points; retrieving, based at least on the obtained query identifier and from a gallery dataset, (i) an enrolled target template, (ii) a reference template, and (iii) a first reference score between the target template and the reference template; computing a first similarity score between the verification template and the enrolled target template; comparing the value of the first similarity score to a first threshold value; computing, based at least on comparing the value of the first score to the first threshold value, (i) a second reference score between the verification template and the reference template, and (ii) a second threshold value, wherein the value of the second threshold value is based at least on the value of the first reference score and the value of the second reference score; comparing the value of the first similarity score and the second threshold value; generating, based at least on comparing the value of the first similarity score and the second threshold value, a plurality of perturbed verification templates for the verification template based at least on a plurality of perturbation points within the verification facial image; computing a second similarity score between the enrolled target template and the plurality of perturbed verification templates; comparing the value of the second similarity score to a third threshold value; and providing, for output to the facial verification system, based at least on comparing the value of the second similarity score to a threshold value, (i) data indicating a match for the verification facial image, and (ii) a final score associated with the verification facial image.