Patent ID: 9208370
Filing Date: 2015-12-08
Classification: G06K,G06T

Abstract:
1. A method for authenticating a device having an electronic processing circuit and memory and a fingerprint swipe scanner, said method comprising: using an electronic processing circuit configured to perform the following, (a) acquiring and storing in a memory at least one enrolled image for comparison to at least one query image subsequently input to said scanner; (b) averaging at least two pixel values of said at least one enrolled image to compute an enrolled vector of pixels and of said at least one query image to compute a query vector of pixels; (c) filtering said enrolled vector of pixels and said query vector of pixels; (d) computing a similarity score between the pixels of said enrolled vector and the pixels of said query vector; (e) comparing said similarity score with a threshold value to determine whether said at least one query image inputted to the scanner was acquired by the same scanner that acquired said at least one enrolled image; and (f) authenticating said device when it is determined that said at least one query image and said at least one enrolled image were acquired by the same scanner.