FIELD: information technologies.
SUBSTANCE: method includes sending a document past an image signal generator with simultaneous serial illumination of the document using several types of illumination, at the same time for each line scanned by the image signal generator a pre-specified type of illumination is used, which makes it possible to generate a document image with alternation of several types of lines. Such image with alternation of several types of lines is exposed to multi-dimensional transformation function, as a result a combined measurement is produced, which is then projected to an empirically determined vector of suitability, in order to produce a scalar value of suitability for this document. This value is compared to the empirically established value of suitability for identification of whether this document is suitable enough to stay in circulation or it shall be removed from circulation and destroyed.
EFFECT: increased accuracy of document suitability inspection.
15 cl, 10 dwg
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