Patent ID: 8942438
Filing Date: 2015-01-27
Classification: G06K,G06T

Abstract:
1. A method for authenticating scanners, including fingerprint swipe scanners, said method comprising: using an electronic processing circuit configured to perform the following, (a) acquiring 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; and (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.