Patent ID: 8989500
Filing Date: 2015-03-24
Classification: G06F,G06K

Abstract:
1. A method for generating a decomposition base which can be used to extract a random signature from a subject material element, comprising the following steps: generating N acquisition vectors of structural characteristics of at least one region of an at least one material element separate from the subject material element and/or from the subject material element itself, analysing all the acquisition vectors using statistical methods to obtain the decomposition base formed of decomposition vectors enabling the representation of each acquisition vector in the form of an image vector of which each component corresponds to the contribution of a decomposition vector in the acquisition vector, analysing at least part of the decomposition vectors to identify that or those decomposition vectors, called common or certain contribution decomposition vectors, which will be at the origin of highly determinist and/or common components to all image vectors obtained using the decomposition base, and saving the decomposition base.