1. A method of identifying a living being, comprising the steps of: using a time-of-flight sensor to determine a 3D location of a face of the living being, wherein the time-of-flight sensor determines depth information of the face; producing with a camera an image of an iris of the living being, the producing being dependent upon a focus position of the camera and the location of the face using the depth information as determined by the time-of-flight sensor; modifying he produced image of the iris by estimating a blur kernel based on the depth information of the face and/or iris image distribution statistics; and processing the produced image to determine an identity of the living being.