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1. US20170024608 - Liveness detector for face verification

Office United States of America
Application Number 14803135
Application Date 20.07.2015
Publication Number 20170024608
Publication Date 26.01.2017
Grant Number 09996732
Grant Date 12.06.2018
Publication Kind B2
IPC
G06K 9/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06K 9/62
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
62Methods or arrangements for recognition using electronic means
G06T 7/68
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
60Analysis of geometric attributes
68of symmetry
CPC
G06K 9/00268
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00221Acquiring or recognising human faces, facial parts, facial sketches, facial expressions
00268Feature extraction; Face representation
G06K 9/00281
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00221Acquiring or recognising human faces, facial parts, facial sketches, facial expressions
00268Feature extraction; Face representation
00281Local features and components; Facial parts
G06K 9/00906
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00885Biometric patterns not provided for under G06K9/00006, G06K9/00154, G06K9/00335, G06K9/00362, G06K9/00597; Biometric specific functions not specific to the kind of biometric
00899Spoof detection
00906Detection of body part being alive
G06K 9/6215
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
62Methods or arrangements for recognition using electronic means
6201Matching; Proximity measures
6215Proximity measures, i.e. similarity or distance measures
G06T 2207/30201
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
30Subject of image; Context of image processing
30196Human being; Person
30201Face
G06T 7/68
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
60Analysis of geometric attributes
68of symmetry
Applicants International Business Machines Corporation
Inventors Zvi Kons
Agents Ziv Glazberg
Title
(EN) Liveness detector for face verification
Abstract
(EN)

A method, product and system for implementing liveness detector for face verification. A method comprising detecting a symmetry line of the face; and verifying that the subject moved the mouth by computing a score based on values of a pair of images in the symmetry lines, wherein the score is indicative to a difference in the shape of the mouth between the pair of images. Another method comprises: verifying identity of a subject based on facial recognition and voice recognition, said verifying comprise determining there is mouth movement in an image sequence, wherein said determining comprises: in each image of the sequence, detecting a symmetry line of the face; and verifying that the subject moved the mouth, wherein said verifying comprises: computing a score based on comparison of symmetry lines of the face in different images of the set of images; and comparing the score with a threshold.