System and method for automatic face recognition

摘要

A system, method and computer program product for face recognition in digital images containing portraits or images of human faces. The facial images are detected and pupil coordinates are calculated. A facial image is converted into a black and white image. A rectangle containing the face is identified. Then, pupil coordinates are determined. A rectangle of a pre-defined size is cut out from the image so the pupils are located at pre-defined coordinates. External lighting effects are reduced and an image template is generated by calculating sets of values of different image points.

主权项

1. A computer-implemented method for identifying pupil location within a facial image, the method comprising:
receiving an image containing a facial image; identifying a rectangle containing the face by applying a face detection algorithm; cutting out the rectangle from the image and normalizing the rectangle to a standard size; determining sub-rectangles within the rectangle containing pupils; performing a transformation on each of the sub-rectangles; calculating local binary patterns (LBP) for each point of the sub-rectangles; calculating classifier outputs for each point of the sub-rectangles based on the LBPs; and identifying the pupil coordinates based on the classifier outputs in each sub-rectangle.