US2014016836A1PendingUtilityA1

Face recognition system and method

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Individually held — no corporate assignee on recordPriority: Jul 2, 2008Filed: Sep 16, 2013Published: Jan 16, 2014
Est. expiryJul 2, 2028(~1.9 yrs left)· nominal 20-yr term from priority
Inventors:Avihu Meir Gamliel
G06V 40/164G06V 10/95G06V 40/171G06K 9/00281
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Claims

Abstract

Apparatus for face recognition, the apparatus comprising: a face symmetry verifier, configured to verify symmetry of a face in at least one image, according to a predefined symmetry criterion, and a face identifier, associated with the face symmetry verifier, and configured to identify the face, provided the symmetry of the face is successfully verified.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for face recognition, the method comprising:
 a) verifying symmetry of a face in at least one image, according to a predefined symmetry criterion based on a geometric property of a polygon formable by connecting known face elements as appearing in the image; and   b) identifying said face, provided said symmetry of said face is successfully verified.   
     
     
         2 . The method of  claim 1 , further comprising capturing said image of said face. 
     
     
         3 . The method of  claim 1 , further comprising detecting said face in said image. 
     
     
         4 . The method of  claim 1 , further comprising using a skin detection method, for detecting said face in said image. 
     
     
         5 . The method of  claim 1 , further comprising using a Viola-Jones detection method, for detecting said face in said image. 
     
     
         6 . The method of  claim 1 , further comprising using a Gabor Filter based method, for detecting said face in said image. 
     
     
         7 . The method of  claim 1 , further comprising cropping said image, thereby removing background from said image. 
     
     
         8 . The method of  claim 1 , further comprising resizing said image into a predefined size. 
     
     
         9 . The method of  claim 1 , further comprising improving a quality of illumination of said image. 
     
     
         10 . The method of  claim 1 , further comprising using Histogram Equalization, for improving a quality of illumination of said image. 
     
     
         11 . The method of  claim 1 , further comprising using an intensity map, for verifying said symmetry of said face in said image. 
     
     
         12 . The method of  claim 1 , further comprising using a gradient map, for verifying said symmetry of said face in said image. 
     
     
         13 . The method of  claim 1 , further comprising using a Fourier Transform phase map, for verifying said symmetry of said face in said image. 
     
     
         14 . The method of  claim 1 , further comprising measuring symmetry of each one of a plurality of input images, and selecting said at least one image of said face among said plurality of input images, and wherein said measured symmetry of said at least one selected image of said face is highest amongst said input images. 
     
     
         15 . The method of  claim 14 , wherein said plurality of input images are at least a part of a video sequence. 
     
     
         16 . A method for face recognition, the method comprising:
 a) verifying symmetry of a face in at least one first image of said face, according to a predefined symmetry criterion based on a geometric property of a polygon formable by connecting known face elements as appearing in the first image, wherein said first image is associated with respective data identifying said face; and   b) updating a face database with said first image of said face and said associated data identifying said face, provided said symmetry of said face in said first image is successfully verified.   
     
     
         17 . The method of  claim 16 , further comprising: c) verifying symmetry of said face in at least one second image of said face, according to said predefined symmetry criterion; and d) identifying said face in said second image, using said face database, provided said symmetry of said face in said second image is successfully verified. 
     
     
         18 . A method for face recognition, the method comprising:
 a) verifying symmetry of a face in at least one image, according to a predefined symmetry criterion based on a geometric property of a polygon formable by connecting known face elements as appearing in the image; and   b) controlling forwarding of said image, according to a result of said verifying of said symmetry.   
     
     
         19 . An apparatus for face recognition, the apparatus comprising:
 at least one computer;   a face symmetry verifier, implemented on said at least one computer, configured to verify symmetry of a face in at least one image, according to a predefined symmetry criterion based on a geometric property of a polygon formable by connecting known face elements as appearing in the image; and   a face identifier, associated with said face symmetry verifier, implemented on said computer and configured to identify said face, provided said symmetry of said face is successfully verified.   
     
     
         20 . An apparatus for face recognition, the apparatus comprising:
 at least one computer;   a face symmetry verifier, implemented on said at least one computer and configured to verify symmetry of a face in at least one first image of said face, according to a predefined symmetry criterion based on a geometric property of a polygon formable by connecting known face elements as appearing in the first image, wherein said first image is associated with respective data identifying said face; and   a face database updater, associated with said face symmetry verifier, implemented on said at least one computer and configured to update a face database with said first image of said face and said associated data identifying said face, provided said symmetry of said face in said first image is successfully verified.   
     
     
         21 . An apparatus for face recognition, the apparatus comprising:
 at least one computer;   a face symmetry verifier, implemented on said at least one computer, configured to verify symmetry of a face in at least one image, according to a predefined symmetry criterion based on a geometric property of a polygon formable by connecting known face elements as appearing in the image; and   a forwarding controller, associated with said face symmetry verifier, implemented on said at least one computer and configured to control forwarding of said image, according to a result of said verification of said symmetry by said face symmetry verifier.

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