METHOD AND DEVICE FOR RECOGNIZING A GRAPHIC ELEMENT PRINTED ON A PLAY SLIP

摘要

A method for recognizing a graphic element of technical function which is printed on a play slip (10) is based on a comparison of images. The content of an area (30) of the slip in which the graphic element is printed, is compared to reference images. The method is compatible with any mode for printing the graphic element on the slip: alphanumeric codes, barcodes, logos, pictures which vary according to the game, etc., but only uses one recognition algorithm. The graphic element which is recognized may be any graphic element of technical function, including a graphic element of useful data, in particular a game code (3) or a game symbol, or a reference graphic element for determining a position of the slip.

主权项

1. Method for recognizing a graphic element of technical function which is printed on a play slip issued to a player, the technical function relating in particular to a selection or principle of the game, an implementation of the game, a printing of useful data, a use of the play slip, or a processing of said play slip, the method comprising the steps of:
/1/ providing a series of reference images that each contain a representation of a graphic element, in form of records of said reference images; /2/ capturing at least one image of the slip issued to the player; /3/ within the image of the slip, selecting an image portion that contains a reproduction of the graphic element as said graphic element appears on the slip; /4/ comparing the reproduction of the graphic element contained in the selected image portion with each reference image, and for each of the reference images, obtaining a score that quantifies a similarity between the reproduction of the graphic element and the reference image; and /5/ proposing the graphic element of the reference image for which the score is the highest as a graphic element that is recognized for the slip.