IDENTITY AUTHENTICATION METHOD AND APPARATUS

摘要

The present invention relates to the field of digital image processing and mode recognition. Disclosed are an identity authentication method and apparatus. The method comprises: acquiring a face image sample pair, wherein one face image is an identity card picture and the other face image is an image collected on site; processing the acquired face image sample pair by using a face image pyramid algorithm, so as to obtain a face image pyramid structure; calculating the gray scale and the gradient orientation of a face image of each size in the obtained face image pyramid structure of the face image sample pair, so as to obtain a gradient orientation pyramid (GOP) characteristic; and performing calculation according to the obtained GOP characteristic of the face image sample pair, so as to determine whether the face image sample pair belongs to a same person. The present invention effectively avoids interferences from factors such as illumination, an age and an expression, and also remarkably improves the accuracy of identity authentication.