SYSTEMS AND METHODS FOR USING FOCAL STACKS FOR IMAGE-BASED SPOOF DETECTION

摘要

Disclosed herein are systems and methods for using focal stacks for image-based spoof detection. One embodiment takes the form of a method that includes obtaining a plurality of images of a biometric-authentication subject, the plurality of images captured by a camera system using a plurality of different focal distances; inputting, into an input-data-analysis module, a set of input data that includes the plurality of images; processing the set of input data using the input-data-analysis module to obtain, from the input-data-analysis module, a spoof-detection result for the biometric-authentication subject; and outputting the spoof-detection result for the biometric-authentication subject.