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Method and device for identifying face value of paper money

A recognition method and technology of banknotes, applied in the field of pattern recognition, can solve the problems of long recognition algorithm time and easy misidentification of the face value of banknotes, and achieve the effect of high recognition rate, strong robustness, and algorithm speed improvement.

Inactive Publication Date: 2014-09-10
NDT SCI & TECH
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Problems solved by technology

[0004] The invention provides a method and system for quickly recognizing the face value of banknotes, which solves the problems that the face value of banknotes is easily misrecognized and the identification algorithm takes a long time

Method used

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  • Method and device for identifying face value of paper money
  • Method and device for identifying face value of paper money
  • Method and device for identifying face value of paper money

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Embodiment 1

[0032] Embodiment 1, this embodiment is a banknote denomination recognition device arranged on an automatic teller machine. identify. The banknote face value recognition device is mainly used to recognize the ultraviolet reflection grayscale image of the banknote feature area. First, the face value recognition image is obtained by cutting the obtained banknote face value feature area image. The face value recognition image here is cut by the face value feature area image. After the module is cut and formed, the image of the banknote denomination feature area is binarized in the binarization module, and the image of the banknote denomination feature area output by the binarization module is binarized. The data is input to the projection module for projection, forming The one-dimensional projection curve image is sequentially matched with the templates in the standard template in the matching module. If there is a matching correlation value greater than 0.7, it can be recognized...

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Abstract

The invention provides a method and a device for identifying a face value of paper money. The method comprises the steps of: performing projection one-dimensional treatment on an obtained image of a paper money face value characteristic region and performing sliding matching on a template after subjected to the one-dimensional treatment. The device is a face value identification device arranged on an automatic teller machine and mainly comprises a binaryzation module, a projection module and a sliding matching module. The matching algorithm of the invention is to transform two-dimensional image data into a one-dimensional projection curve, and then calculate a correlation coefficient with the template curve. The projection matching based processing way enable the algorithm speed to be greatly improved, and meanwhile, the algorithm is very strong in robustness and very high in recognition rate.

Description

technical field [0001] The invention relates to the field of pattern recognition, in particular to banknote image pattern recognition, and is a method and device for recognizing the face value of banknotes. Background technique [0002] Banknote recognition includes face value-oriented recognition and banknote authenticity identification. The general identification process of banknotes is to perform preprocessing such as tilt correction on the banknotes, then identify the currency type and face value of the banknotes, and then identify the authenticity of the banknotes according to the face value of the banknotes. The face value recognition of banknotes plays an important role in the identification of banknotes. If the face value is not recognized first, it is impossible to talk about the authenticity of banknotes. [0003] Since the banknote identification system requires real-time performance, it is generally required to complete the face value-oriented identification and...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06T7/00G07D7/20G07D7/12G07D7/202
Inventor 夏爱华张林法郭礼虎
Owner NDT SCI & TECH
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