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Method and device for acquiring number of paper currency or financial bill, and method and device for identifying paper currency and financial bill

A technology for obtaining methods and numbers, applied in the field of information and images, can solve problems such as insufficient use of machinery or convenience of operation procedures, and achieve the effects of increasing the amount of useful information, improving the level of recognition rate, and improving recognition accuracy

Inactive Publication Date: 2010-06-16
BEIJING NUFRONT SOFTWARE SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that it does not make full use of the convenience of machinery or operating procedures
[0010] However, in some special fields, using the convenience of operation or machinery, banknotes can be recognized multiple times, and the verification process can be added to improve the recognition accuracy of banknote serial numbers to another level. The work in this area is almost blank.

Method used

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  • Method and device for acquiring number of paper currency or financial bill, and method and device for identifying paper currency and financial bill
  • Method and device for acquiring number of paper currency or financial bill, and method and device for identifying paper currency and financial bill
  • Method and device for acquiring number of paper currency or financial bill, and method and device for identifying paper currency and financial bill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] In this embodiment, firstly, according to the layout of the banknote number and the position of the banknote number on the layout, a number collection device is pre-installed at a predetermined position on the banknote conveying channel, specifically, a number collection device is installed on the "must pass" of the banknote serial number Devices, such as image sensors; only extract the image of the area that may include the number (called "number area"). The range of the number area is determined according to the size of the banknote number to ensure that the number can appear in the normal passage. within this area.

[0048] Taking RMB as an example, RMB banknotes have only one number at the corner, so there are four possible positions when the number passes through the number acquisition device set on the conveying channel, namely figure 1 Numbers in areas I, II, III, IV. Such as figure 1 As shown, A1, A2, A3, and A4 indicate the situation when the number area on...

Embodiment 2

[0064] In this embodiment, it is basically the same as Embodiment 1, except that the process of obtaining the banknote number requires two operations, that is, the first operation is as described in Embodiment 1, and the second operation is performed after changing the orientation of the banknote. Two number acquisition devices (image sensors) are set, figure 1 Shown in positions Q1 and Q3, or positions Q2 and Q4.

[0065] After the first detection, the total number of banknotes is known. Then the number of sheets of a certain banknote that appears for the first time in the process of counting the front and back of the same bundle of banknotes twice must be complementary to the total number of banknotes when the same banknote is counted on the reverse side. And the position where the number appears can also be calculated based on the first appearance position. Specifically, Q1 and Q3 are symmetrical, that is, the first time it appears in Q1, the second time it appears in Q3,...

Embodiment 3

[0071] In this embodiment, according to the location of the banknote number, two number acquisition devices are set at the predetermined position of the banknote conveying channel, such as Figure 5a and 5b As shown, two number acquisition devices (image sensors) are set at positions Q1 and Q2 (or positions Q3 and Q4).

[0072] Assume that number acquisition devices (image sensors) are set at positions Q1 and Q2, refer to Image 6 , a banknote number acquisition method provided in this embodiment, comprising:

[0073] S201, when the banknote to be inspected arrives at a predetermined position, collect images of number area I and number area II of the banknote;

[0074] S202, judging whether the images of the number area I and the number area II include banknote numbers;

[0075] If the image contains a number, go to step S203; otherwise, go to step S204;

[0076] S203, extracting the banknote number from the image;

[0077] S204, changing the orientation of the banknote a...

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Abstract

The invention discloses a method for acquiring a number of a paper currency or a financial bill. The preset position on a conveying passage is provided with a number acquisition device according to the layout position of the number. The method comprises the steps of: acquiring a regional image where the number may appear when the paper currency and the financial bill to be detected reaches the preset position; detecting the regional image, and judging whether the regional image contains the number of the paper currency; and extracting the number from the image. The invention also provides a device for acquiring the number of the paper currency or the financial bill, which comprises an image acquisition unit, a detection unit and a number extract ion unit. The invention also provides a corresponding method and a corresponding device for identifying the paper currency or the financial bill. According to the invention, only a region which may contain the number needs to be extracted, which can ensure that the processed redundant information amount is minimum, the resolution of the region to be identified is highest, the useful information amount is increased, and the identification accuracy is improved, so that the number of the paper currency or the financial bill can be quickly and accurately acquired and can be identified and managed.

Description

technical field [0001] The invention relates to the field of information and image technology, in particular to a method and device for acquiring numbers of banknotes and coupons, and a method and device for identifying banknotes and coupons. Background technique [0002] The serial number (or crown code) printed on banknotes and bills is a unique sign identifying the identity of a single banknote or bill. In addition to special anti-counterfeiting marks (such as watermarks, etc.), in the management of banknotes (or other valuable securities, bills), the identification of serial numbers (or crown codes) of various banknotes and bills becomes banknotes and bill management. And an important means of determining the authenticity to a certain extent. Banknotes need to pass through various mechanical devices (such as banknote counters and banknote detectors) throughout their life cycle, and there is a need to identify banknote serial numbers (or called serial numbers). [0003]...

Claims

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Application Information

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IPC IPC(8): G07D7/00G06K9/20G07D7/12G06V30/10
CPCG07D7/004G07D7/0006G06K9/2054G07D7/003G06V30/10G06V30/1444
Inventor 唐辉成和建鲍东山
Owner BEIJING NUFRONT SOFTWARE SCI TECH
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