Multi-national paper money serial number identification method based on sorting machine

Abstract

The embodiment of the invention discloses a multi-national paper money serial number identification method based on a sorting machine, and the method employs a character matching template to recognize a to-be-recognized character. The method comprises the steps: firstly enabling an obtained paper money serial number image to be converted into a gray scale image; secondly determining a character recognition region through initial location, binaryzation and relocation; thirdly enabling the size of a character region to be consistent with the size of a matching template through normalization; and finally screening out matched characters through dot product, and completing the recognition. The method not only avoids the influence from noisy points, and can save a filtering step. The method is suitable for a plurality of current mainstream currency types: RMB, dollar, Euro, Hongkong dollar, and yen.

Description

technical field [0001] The invention belongs to the technical field of automatic identification, and in particular relates to a multi-country banknote serial number identification method based on a sorting machine, a secondary segmentation method combined with prior knowledge of banknotes, and a character identification method based on template matching. Background technique [0002] In the financial field, each banknote has a unique serial number, which is equivalent to the ID card of the banknote, so the serial number becomes an important identification of the banknote. Whether it is classification or anti-counterfeiting, the serial number plays a vital role. At present, the number of economic disputes and illegal capital flow cases is increasing day by day. In addition, in the fight against violent banknote robbery and money laundering, the serial number is a powerful tool for the state machine to manage banknote flow, which is conducive to social stability. At present, ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the object of the present invention is to provide a multi-country banknote serial number recognition method based on a sorting machine, which adopts a secondary segmentation method combined with prior knowledge of banknotes and a character recognition method based on template matching to solve the existing problems. There are banknote serial number recognition problems that cannot adapt to complex backgrounds and character size changes, and the recognition speed has increased by more than 8 times

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