Patent ID: 7529391
Filing Date: 2009-05-05
Classification: G06K

Abstract:
1. A computer-implemented method for verifying signatures through a two stage process comprising the steps of: using a computer to perform the steps of: (a) receiving a series of authentic user inputs, each comprising handwritten signature data; (b) extracting with a two-component Gaussian Mixture Model the distribution of a plurality of global features within the handwritten signature data to obtain a value for the plurality of global features, wherein the global features comprise at least one spatial feature and at least one dynamic feature, wherein the at least one spatial feature and at least one dynamic feature exhibit low correlation; (c) storing the values obtained in step (b) on a computer-readable medium; (d) extracting a plurality of local features from the signature data to obtain a value for each local feature; and (e) storing the values obtained in step (d) on a computer-readable medium.