Patent Document ID: 8953852
Application ID: 13527454

Base Claim:
1. A method for face recognition comprising the steps of: (a) collecting a match facial image and a reference image from an image taking device and an image record of a database, respectively; (b) normalizing the match facial image and the reference image to have a same predetermined image size and orientation; (c) selecting one or more facial feature points from each of the match facial image and the reference image; (d) obtaining corresponding matched facial feature points of the reference image and an average match deviation (AMD) for at least one facial feature point of the match facial image; (e) creating a match geometric model by using the at least one facial feature point of the match facial image, and a reference geometric model by using the corresponding matched facial feature points of the reference image; (f) obtaining a geometric model deviation (GD) by comparing the match geometric model and the reference geometric model; and (g) employing the average match deviation (AMD) and the geometric model deviation (GD) to obtain a recognition score (S) based on a predetermined rule, wherein one possibility of the predetermined rule is shown as below, and 
 S= 1/ AMD×GD wherein the method is performed using a computer.

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Claim 3:
3. The method of claim 1 , wherein step (b) further comprises the steps of: (1) calculating a coordinate value of the left eye and a coordinate value of the right eye of the match facial image and the reference image; (2) calculating an angle of a virtual straight line from the left eye to the right eye with respect to a virtual horizontal line; (3) rotating the match facial image and the reference image with their individually calculated angles in order to dispose the virtual straight line to be parallel to the virtual horizontal line; (4) calculating a distance between the left eye and the right eye based on the coordinate values thereof; and (5) either zooming in the match facial image and the reference image if the distance is less than a predetermined distance or zooming out the match facial image if the distance is greater than the predetermined distance.