Method and device for true-false identifying of paper ticket based on infrared identifying watermark

Abstract

The invention relates to a method and device for discriminating the genuine-fake of paper receipt based on infrared discrimination watermark. The receipt to be detected is through the infrared field via transmission means, the optical receiver covered with watermark pattern detects the transmitted light in the watermark area of receipt in motion procedure, complete the photoelectric signal conversion; output to the sampling module and the digital signal characterized the watermark is obtained by analogue / digital conversion; the analog of watermark which is obtained from the mathematical model complex characterization is as the criterion to discriminate genuine or fake to judge the genuine-fake of the watermark, the central processing unit executes the recognition program of discriminate genuine or fake of watermark, and output the discrimination result. The central processing unit is connected with the controller and memory, the controller is connected with the transmitting means. The invention discriminates genuine or fake by computer module discrimination technique, and the false proof means can be processed by more advanced and accurate device, and make the speed of discrimination technique more fast and the result more accurate.

Description

a technical field [0001] The invention relates to a method for identifying authenticity of paper bills and securities with watermarks as anti-counterfeiting features, in particular to a method and device for authenticating paper bills based on infrared recognition watermarks. Two background technology [0002] A watermark is a pattern embedded in the paper. It is a special optical characteristic formed by artificially controlling the density of local paper fibers through a special process in the papermaking process. Once the papermaking process is complete, it is not possible to change the fiber density in a specific pattern, so counterfeiting and "cloning" of watermarks is impossible. This non-counterfeiting feature makes it a widely used anti-counterfeiting means for paper tickets. For example, banknotes in circulation around the world almost without exception use watermarks as the main anti-counterfeiting feature. [0003] Due to the automatic collection of watermark f...

AI Technical Summary

Problems solved by technology

Especially in the case of processing tickets in large batches, due to visual limitations, often only the shape of the watermark can be seen, and it is impossible to find the deep optical characteristics caused by the change of fiber density, resulting in this kind of anti-counterfeiting. Anti-counterfeiting technology has not really played its due role

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