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Vertical serial number identification method and vertical serial number identification device

A technology of serial font numbers and characters, which is applied in the field of recognition methods and devices for vertical serial font numbers, can solve the problems of small gray value discrimination of pixels and inaccurate recognition of vertical serial font numbers, and achieve the effect of improving accuracy

Active Publication Date: 2017-02-22
SHENZHEN YIHUA COMP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the pixel gray value of the image of the vertical serial number area under ultraviolet fluorescence is not very distinguishable, the existing vertical serial number recognition method has the problem of inaccurate recognition of the vertical serial number

Method used

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  • Vertical serial number identification method and vertical serial number identification device

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Experimental program
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Effect test

Embodiment 1

[0058] figure 1 It is a flow chart of a method for identifying a vertical serial number in Embodiment 1 of the present invention. This embodiment is applicable to the situation where the fluorescent serial number of a banknote needs to be identified, and the method can be executed by a vertical serial number identification device , wherein the device can be realized by software and / or hardware, and the device can be integrated in the banknote validator. refer to figure 1 The device for recognizing vertical serial numbers provided in this embodiment may specifically include the following steps:

[0059] S110. Acquiring an image of the vertical serial number area under ultraviolet fluorescence.

[0060] Specifically, in the image of the vertical serial number area under the ultraviolet fluorescence, the gray value of each pixel point is low, and the gray value difference between each pixel point is small.

[0061] S120. Perform clustering processing according to the gray value ...

Embodiment 2

[0097] figure 2 It is a structural diagram of a vertical serial number recognition device in Embodiment 2 of the present invention. This embodiment is applicable to situations where it is necessary to recognize fluorescent serial numbers of banknotes. refer to figure 2 , the structure of the vertical serial number recognition device provided in this embodiment may be as follows:

[0098] Obtaining module 210, for obtaining the area image of the vertical series serial number under the ultraviolet fluorescence;

[0099] A processing module 220, configured to perform clustering processing according to the gray value of each pixel in the image of the vertical serial number area;

[0100] A correction module 230, configured to correct the gray value of each pixel according to the clustering result, so as to increase the gray difference between various types of pixels;

[0101] A determining module 240, configured to determine the position of the target image of the vertical se...

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Abstract

The embodiments of the invention disclose a vertical serial number identification method and a vertical serial number identification device. The method comprises the following steps: getting a vertical serial number area image under ultraviolet fluorescence; performing clustering according to the gray values of the pixels in the vertical serial number area image; correcting the gray values of the pixels according to the clustering result to increase the gray difference between the pixels; determining the position of a vertical serial number target image in the corrected vertical serial number area image; and identifying each vertical serial number character in the vertical serial number target image. By implementing the embodiments of the invention, the problem that vertical serial number identification based on the existing vertical serial number identification method is inaccurate is solved, and the accuracy of vertical serial number identification is improved.

Description

technical field [0001] The embodiment of the present invention relates to banknote identification technology, in particular to a method and device for identifying serial numbers in vertical columns. Background technique [0002] Both the 2015 version of the 100-yuan RMB and the 2010 version of the Hong Kong dollar have added a fluorescent serial number, that is, the vertical serial number on the right side of the front of the banknote. Under ultraviolet fluorescence, the vertical serial numbers will emit fluorescence. By recording the vertical serial numbers of banknotes under ultraviolet fluorescence, and then comparing the vertical serial numbers under ultraviolet fluorescence with the vertical serial numbers under visible light, The authenticity of banknotes can be identified. [0003] At present, by comparing the gray value of the pixel point, the vertical serial number is identified. Specifically, under ultraviolet fluorescence, if the grayscale value of an image at a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/20
CPCG07D7/20
Inventor 曹婧蕾
Owner SHENZHEN YIHUA COMP
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