公开(公告)号：EP2678667A1

公开(公告)日：2014-01-01

申请号：EP12749137.1

申请日：2012-02-24

申请人： Technical University Of Gabrovo

发明人： ILARIONOV, Raycho ,  SIMEONOV, Ivan ,  SHOPOV, Nikolay

IPC分类号： G01N22/00

CPC分类号： G06K9/00087 ,  G01N22/00 ,  G01N29/4427 ,  G01N29/4436 ,  G01N29/46 ,  G01N2291/024 ,  G01N2291/045 ,  G06K9/6256

摘要： This invention relates to a method of non-contact detection and identification of the type of different substances and mixtures as well as determining their characteristics as concentration, hardness, etc. The method comprises irradiation of the inspected object by a wave pulse or a series of such pulses; reception (1), amplification (2) and analogue-to-digital conversion (3) of the signal, formation of output detailing wavelet coefficients and output approximating wavelet coefficients by means of fast discrete wavelet transformation of the digitized signal, by means of Mallat's pyramidal algorithm and orthogonal base functions, filtering (7) of the output approximating and detailing wavelet coefficients up to preselected ones, comparison of the filtered approximating and/or detailing wavelet coefficients, in the capacity of recognition attributes with preselected respective reference coefficients by the classifying device (8), and according to the comparison result the presence and type is determined and/or the studied characteristics of the inspected object is determined.