Disclosed herein is a method for face authentication. The method includes the following steps:



a) at least one face detection step including determining at least one first image by using at least one camera;
b) at least one skin detection step including projecting at least one illumination pattern including a plurality of illumination features on the scene by using at least one illumination unit, determining at least one second image using the at least one camera, and determining a first beam profile information;
c) at least one 3D detection step including determining a second beam profile information of at least four of the reflection features located inside the image region of the second image corresponding to the image region of the first image; and
d) at least one authentication step including authenticating the detected face by using at least one authentication unit.