公开(公告)号：US08977010B2

公开(公告)日：2015-03-10

申请号：US13656337

申请日：2012-10-19

申请人： BioID AG

发明人： Robert Frischholz ,  Peter Strohm

IPC分类号： G06K9/00

CPC分类号： G06K9/00221 ,  G06K9/00899

摘要： A method for discriminating between a real face and a two-dimensional reproduction of the face, in a biometric detection process, the method comprising: (a) making at least two digital recordings of the face or its reproduction in time sequence, one after the other; (b) dividing each of the recordings into a number of image components wherein each image component comprises a number of pixels; (c) determining the displacement of the individual image components from the first recording to the second recording by correlation and generating a displacement vector field therefrom; and (d) analyzing the displacement vector field for determining whether the recording has been made from a real face or from its reproduction.

摘要翻译： 一种用于鉴别面部的真实面部和二维再现的方法，在生物测定检测处理中，所述方法包括：（a）按照时间顺序至少进行面部或其再现的数字记录， 其他; （b）将每个记录分成多个图像分量，其中每个图像分量包括多个像素; （c）通过相关确定各个图像分量从第一记录到第二记录的位移，并从其产生位移矢量场; 以及（d）分析位移矢量场，以确定记录是从真实面部进行还是从其再现。