Method and device for distinguishing false money by imaging paper money through multimodal information fusion

A multi-modal, banknote technology, applied in the field of image processing, can solve problems such as the inability to comprehensively evaluate the state of banknotes, achieve high reliability, high banknote authentication, and overcome limitations.

Inactive Publication Date: 2011-07-27
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Limitations of point detection: This detection method based on feature points cannot comprehensively evaluate the status of banknotes. Counterfeiters can find out the detection points through repeated trials, and then only need to forge the detection points, or splicing and altering to manufacture the banknotes. Counterfeit currency that cannot be detected by similar equipment
Practical limitations: banknotes in the real environment, there are various stains, interference
Existing methods cannot distinguish whether the characteristic abnormality of the banknote is caused by defacement or counterfeit

Method used

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  • Method and device for distinguishing false money by imaging paper money through multimodal information fusion
  • Method and device for distinguishing false money by imaging paper money through multimodal information fusion
  • Method and device for distinguishing false money by imaging paper money through multimodal information fusion

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Embodiment 1

[0027] Example 1: Combining figure 1 , figure 2 , the present invention is a multimodal information fusion banknote imaging counterfeit device, which is composed of a position sensor, a multispectral sensor, an extended sensor interface, a magnetic sensor, an ultrasonic sensor, a signal processing unit, a main control unit, a drive unit and a transmission channel The main control unit is respectively connected to a position sensor, a signal processing unit and a drive unit, the drive unit is connected to a transmission channel, and the signal processing unit is respectively connected to a multispectral sensor, an extended sensor interface, a magnetic sensor and an ultrasonic sensor.

[0028] In the present invention, a banknote imaging identification method for multi-modal information fusion, the steps are as follows:

[0029] Step 1: The banknote first passes through the position sensor to trigger the signal acquisition process, and the multi-spectral image sensor, magnetic...

Embodiment 2

[0037] Example 2: Combining Figure 1-Figure 7 , the present invention is a banknote imaging identification method for multi-modal information fusion, including the following technical methods:

[0038] (1) System architecture: such as figure 1 As shown, the system is mainly divided into magnetic signal processing module, image acquisition and processing module and transmission control module. The magnetic signal processing is directly completed in the main control board SP, and the image acquisition processing is completed in the image processing DSP. The image processing module system architecture is as follows: figure 2 shown. The image processing module can be subdivided into communication module, message processing module, image processing module and hardware resource access module. The communication module and image processing module are introduced in detail below: the communication module includes three parts: banknote processing equipment communication, host compu...

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Abstract

The invention provides a method and a device for distinguishing false money by imaging paper money through multimodal information fusion, which overcome the limitation of the conventional method and achieve high reliability. The device for distinguishing the false money by imaging the paper money through the multimodal information fusion consists of a sensor, a signal processing unit, a master control unit, a driving unit and a transmission passage, wherein the master control unit is connected with the position sensor, the signal processing unit and the driving unit respectively; and the driving unit is connected with the transmission passage. The method comprises the following steps of: acquiring the multimodal characteristics of the paper money; fitting the process that a person senses the false distinguishing characteristics of the paper money by a plurality of characteristic extracting methods, and constructing a multimodal characteristic space; and using a targeted matching and comparing algorithm for different anti-counterfeiting characteristics. By using the method and the device, paper money stained damage and anti-counterfeiting characteristic abnormality are distinguished according to a model, and by a multi-classifier fusion method, the limitation of the conventional method is effectively overcome, and the false paper money distinguishing with high reliability is realized.

Description

(1) Technical field [0001] The invention relates to image processing technology, in particular to a banknote imaging identification method and device thereof based on multimodal information fusion. (2) Background technology [0002] Banknote authentication is the core of financial electromechanical products. Especially in the process of economic globalization and RMB internationalization, banknote counterfeiting equipment has become an important technical guarantee for maintaining the image of national sovereignty and maintaining social and economic confidence. Facing the current counterfeit money crimes that emerge in an endless stream, there are still many defects and deficiencies in the existing banknote counterfeiting methods and devices. With the patents "Universal banknote characteristic discriminator and confirmer" (publication number CN1160659), "a banknote identification device" (publication number CN1490766), "paper currency identification method" (publication num...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07D7/20G07D5/00G07D7/04G07D7/1205G07D7/164
Inventor 唐降龙金野刘鹏程丹松刘家锋吴锐刘松波黄剑华佟喜峰黄庆成赵巍
Owner HARBIN INST OF TECH
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