GLOBAL LOCALISATION BY PROMPT COORDINATION OF IMAGES Russian patent published in 2009 - IPC G06K19/06 G06K9/64 H04N1/44 

FIELD: physics; processing of images.

SUBSTANCE: invention concerns to systems for identification of a situation of scores on the document by entrapment of the image of the document. The expedient of definition of a part of the document corresponding to the entrapped image at which identify document fields in which the pattern, at least, is partially hidden is offered. Choose in the image basic pixel and determine bias between this pixel and a pattern, spend a pixel-by-pixel comparison of the image with the document in such a manner that only basic pixel is compared to situations in the document which are in limits of the identified fields, and have the bias spotted from a pattern then the comparison accompanied by the greatest conformity between pixels of the image and the electronic document provides identification of a standing basic pixel concerning the electronic document.

EFFECT: pinch of efficiency and velocity of definition of a situation of a part of the document in the entrapped image without necessity of carrying out of pixel-by-pixel comparison of the image with all documents.

10 cl, 17 dwg