JP4961440B2 - Automatic deposit machine and bill tracking method - Google Patents

Description

  The present invention relates generally to counterfeit currency tracing, and more particularly to counterfeit currency tracing using a recognition device.

For example, police authorities may require a bank to report the transaction log of counterfeit banknotes paid to a bank's automated teller machine (ATM).
Banknotes (banknotes) are all forms of currency recognized by banks. In order to deal with police demands, banks usually have procedures for tracing banknotes paid to ATM machines.

  FIG. 1 is a block diagram of a conventional trace system 100 for notifying police authorities of counterfeit banknotes. The first bank note 104 is deposited in the ATM 102 of the bank branch 103. At this point, the bank does not know whether the first banknote 104 is a counterfeit bill.

  The ATM 102 includes a device for recording the transaction log of all paid banknotes, including the transaction log of the first banknote 104 in this example. The first banknote 104 enters the banknote identification unit of the ATM 102, and the face value of the banknote is identified. The first bank note 104 then enters the serial number reading unit and the serial number of the first bank note 104 is read. The first bank note 104 is stored in the ATM 102 cartridge together with other paid banknotes. The serial number of the first bank note 104 is stored in the cartridge memory of the ATM 102.

  The cartridge is taken out from the ATM 102 and transported to the bank head office 107. At the bank head office 107, high-level verification 105 is performed on the first banknote 104. If the first bank note 104 is found to be a counterfeit note, the first bank note follows the subsequent procedure as a reacquired bank note 118. The re-acquisition banknote 118 is physically the same as the first banknote 104, but here, it will be referred to as the re-acquisition banknote 118 and represents that the reacquisition procedure is performed.

  The reacquired banknote 118 is returned to the bank branch 103. The serial number of the reacquired banknote 118 is read from the memory of the cartridge, traces the path through which the banknote has passed, and the transaction log 114 is obtained from the bank branch 103. As a tracing method, for example, there is a method using information on a banknote serial number (for example, see Patent Document 1) or a method using a combination of a serial number and a customer's fingerprint image (for example, see Patent Document 2) ). The transaction log 114 includes at least information on the date when the banknote was first deposited, the identity of the customer, and the total deposit amount. The transaction log 114 is reported to the police 110 and the bank head office 107.

JP 11-328493 A JP 2000-322632 A

The conventional tracing system 100 has a plurality of problems in identifying and tracing counterfeit bills. For example, using only serial numbers to identify banknotes in the prior art is problematic. One problem with using serial numbers is that counterfeit banknotes often have the same serial numbers as regular banknotes. As a result, the conventional trace system 100 cannot distinguish between regular banknotes and counterfeit banknotes having the same serial number. Furthermore, it is impossible to identify a number of counterfeit banknotes having the same serial number. In other words, the conventional trace system 100 has the above-mentioned problem with respect to accurately tracing counterfeit banknotes.
In addition, another problem is associated with an apparatus that captures an image of a serial number. Since conventional imaging devices do not have sufficient accuracy to capture banknote serial number images with high reliability, for example, when serial numbers are used for comparison information, serial number reading accuracy is not sufficient. There is a problem that accuracy is not good. This application aims at tracking a banknote more accurately based on the above subject.

Representative inventions disclosed in the present application are as follows.
An automated teller machine (ATM) is provided that is electrically connected to one or more devices. One or more devices are deposit devices configured to accept the first banknote, image extraction devices configured to extract one or more initial images from the first banknote, A transaction log device configured to attach a transaction log to one or more initial images, wherein the depositing device is further configured to accept a reacquired banknote, and the image extraction device is further configured to reacquire the banknote So that one or more re-acquired images can be extracted from the image, and one or more initial images can be compared with one or more re-acquired images to obtain a comparison result. Further comprising a configured comparison device.

  In another embodiment, an interface to a bank automated teller machine (ATM) is provided. The interface is configured such that one or more screens are displayed on the display of the automated teller machine. One or more screens include a tracing mode that requires special authentication by the bank to use the tracing mode. It also includes a tracing mode type option that is configured to initiate a command to display a request to enter a particular type of reacquired banknote after being selected. Includes a search mode start option in tracing mode, and the start search option directs the comparison between the reacquired image of the reacquired banknote and the first image of the 1st banknote after being selected. Configured to start. Further, a comparison result screen in tracing mode is included, and the comparison result screen is configured to display the comparison result when the comparison is completed.

  In yet another embodiment, a method for tracing banknotes is provided. The method accepts a deposit of a first bank note, extracts one or more first images from the first bank note, and attaches a start transaction log to the one or more first images. Accept deposits of reacquired banknotes, extract one or more reacquired images from the reacquired banknotes, one or more first images and one or more reacquired And comparing the images to obtain a comparison result.

  The tracing system of the present invention traces banknotes with a high level of accuracy and can therefore be trusted even during sophisticated crime tracking.

  According to the present invention, when a forged banknote is found via a bank ATM, a transaction record to be referred to can be searched as a clue for tracking the criminal. In addition, when identifying banknotes, the banknote surface is not used as a clue, but the banknote surface is characterized, so that banknotes with the same serial number can be distinguished. By collecting images for a single banknote multiple times, banknotes can be identified even with relatively low resolution sensors.

1 is a block diagram of a conventional tracing system for notifying police authorities of counterfeit banknotes. 1 is a schematic diagram of a tracing system for tracing banknotes according to an embodiment of the present invention. FIG. 3 is a flowchart of a tracing method for tracing banknotes according to an embodiment of the present invention. It is a schematic diagram of operation | movement of the image extraction apparatus by the Example of this invention. 4 is a data structure of transaction information and image data according to an embodiment of the present invention. 3 is an example of an ATM interface according to an embodiment of the present invention. It is a schematic diagram of the comparison calculation performed with the comparison apparatus by the Example of this invention. It is a flowchart of the whole comparison process by the Example of this invention. It is a block diagram of the apparatus group of the tracing system by the Example of this invention.

The present invention achieves the above object by providing a system and method for tracing banknotes using a recognition device. It is to be understood that the present invention can be implemented in various ways, including as a process, apparatus, system, device or method. The tracing system of the present invention identifies banknotes by using more than just a serial number. Thus, the tracing system can distinguish between two separate banknotes having the same serial number.
The present invention encompasses other embodiments of systems, methods, apparatus, and computer readable media configured as described above.

  The invention of the system and method for tracing banknotes is disclosed below. The examples are set forth in order to provide a general understanding of the invention. However, those skilled in the art will appreciate that the present invention is not limited to these examples.

  FIG. 2 is a schematic diagram of a tracing system 200 for tracing banknotes according to an embodiment of the present invention. The first bank note 204 is deposited in a depositing device 206 that is configured to accept the first bank note 204. The depositing device 206 is disposed inside an automatic teller machine (ATM) of a bank branch (not shown) so that customers or other users can easily access it. ATM 202 is further configured to accept a plurality of different banknotes. However, here, a single first bank note 204 will be described for the purpose of explanation.

  The first bank note is conveyed to the image extraction device 208. In this embodiment, the image extraction device 208 is illustrated as being part of the ATM 202. However, the present invention is not limited to this. In addition, the image extraction device 208 may be disposed outside the ATM 202.

  The image extraction device 208 is configured to extract one or more first images 216 from the first bank note 204. Image extractor 208 includes an analog-to-digital (A / D) converter that converts an analog image of a banknote into a correspondingly digital image that can be processed as desired.

  An important purpose of the image extraction device 208 is to extract a sufficient number of first images 216 to capture the unique features of the banknotes and identify the banknotes as unique. The extracted first image 216 is preferably a combination of some of the unique features of such banknotes. The extracted first image 216 images at least a part of the front or back surface of the first bank note 204. The image extraction device 208 uses photographic technology to provide features such as color, brightness, saturation, density, unique markings, blood stains, ink stains, pencil writing marks, fading colors, abnormal coloring, damaged parts, creases, It is desirable to detect holes, breaks, etc. Other imaging techniques can be used to detect such features. For example, other imaging techniques include the use of infrared, ultraviolet, X-ray, photoluminescence, chemiluminescence, fluorescence, magnetic resonance imaging (MRI), chemicals, and the like. That is, the extracted image is one of a photographic image, an infrared image, an ultraviolet image, an X-ray image, a photoluminescence image, a chemiluminescence image, a fluorescence image, a magnetic resonance image, a chemical image, or other types of images. One or more.

  The first image 216 includes a plurality of the first banknotes 204 described above, and each of the different images is a unique feature of the first banknote 204 and at the same time is arranged in a different posture. You may catch it. Also, these different images include a front side image and a back side image. The posture of the front image and the posture of the back image change depending on the direction in which the first banknote is deposited.

  Further, the first image 216 can include, for example, images of four different positions of the first bank note 204. Including this case, the first image may be divided into groups according to the posture. Posture The first posture is a posture in the surface forward direction. The second posture is a posture in the reverse direction of the surface. The third posture is a posture in the forward direction of the back surface. The fourth posture is a posture in the reverse direction of the back surface. An important purpose of extracting images from a number of different poses is to improve the accuracy of the tracing system 200, and further grouping can improve the overall accuracy of tracing and at the same time This time can be reduced.

    The first image is conveyed to a transaction log device 210 that is configured to attach the transaction log 214 to the first image 216. The transaction log includes the date and time of the first deposit, the customer's identity, the deposit amount, the customer's image, and other useful information. The transaction log 214 and the corresponding first image 216 are stored in the storage device 212 of the ATM 202. In this embodiment, the storage device 212 is illustrated as being part of the ATM 202, but the present invention is not limited to this.

      In addition, the storage device 212 may be located outside the ATM 202, and the ATM 202 network link is electrically connected to an external storage device (not shown). A copy of the first image 216 is sent to the external storage device using a network link to the external storage device. The external storage device is configured to store some image including the first image and the reacquired image.

  The first ATM 202 used for the first first deposit 204 is preferably the same ATM 202 with the same image extraction device 208 used in the reacquisition procedure. One advantage of using the same ATM 202 is that the same ATM 202 extracts the image using substantially the same method as the ATM 202 related to the first bank note 204, that is, using physically the same sensor or the like. It can be done. This makes it possible to provide better accuracy in the reacquisition procedure, and in particular the calculation of the comparison result 224 becomes more accurate. These re-acquisition procedures will be described later. Other than this, the first ATM 202 used for the first deposit 204 by the customer of the original first bank note 204 may not be the same ATM used in the reacquisition procedure. By using another ATM, for example, it is more convenient for the bank to perform the reacquisition procedure.

  The first bank note 204 is transported to a bank head office (not shown) for further processing. At the bank head office, a high level verification is performed. If the first bank note 204 is found to be a counterfeit note, the first bank note 204 is subjected to a procedure for tracing the bank note. Hereinafter, the bank note 218 is physically the same bank note as the first bank note 204, but will be referred to as a re-acquired bank note 218 to indicate that the ATM is re-acquired and the trace procedure is performed. To do.

  The reacquired banknote 218 is returned to the ATM 202 of the bank branch (not shown). In the present embodiment, the reacquired banknote is deposited in the same ATM 202. However, the present invention is not limited to this. As described above, these tracing procedures can be performed at any selected ATM of a particular bank. The selected ATM is connected to the image extractor and to a network link (not shown) to the storage device 212.

  An authorized employee 620 uses the deposit device 206 to insert the reacquired banknote 218 into the ATM 202 in the trace mode. The reacquired banknote 218 is conveyed to the image extraction device 208. The image extraction device 208 is further configured to extract one or more reacquired images 220 from the reacquired banknote 218. The reacquired image 220 is associated with the first image 216 corresponding thereto, and the first bank note 204 is traced. Therefore, it is important that the image extracting device 208 extracts a sufficient number of re-acquired images 220 so that the re-acquired images 220 can be associated with the first image 216. The extracted reacquired image is a photograph of at least a part of the front or back surface of the reacquired banknote 218.

  The reacquired image 220 may include multiple images, similar to the first banknote described above, with each different image being a unique feature of the reacquired banknote 218 and being placed in a different orientation. Features may be captured. Furthermore, you may make it include the image according to the 1st-4th attitude | position mentioned above.

  The ATM 202 includes or is connected to a comparison device 222 that is configured to compare the first image 216 and the re-acquired image 220. The comparison result 224 is acquired from the comparison operation. If the comparison result 224 indicates a match, the transaction log attached to the first bank note 204 corresponding to this is extracted.

  Next, further details of the tracing system will be described.

  FIG. 3 is a flowchart of a tracing method 300 for tracing banknotes according to an embodiment of the present invention. This flowchart corresponds to that described above with reference to FIG.

  The first bank note 204 is accepted at step 301. In step 302, the first image 216 is extracted from the first bank note 204. In step 304, banknote discrimination is performed on the first banknote 204 to determine whether the first banknote is genuine. This bill discrimination includes determination of the type of banknote, for example, $ 1, $ 5, $ 20, or $ 100. The bill discrimination further includes a first counterfeit screening of the first bank note 204. This first screening is not as secure as the more comprehensive screening performed later at the bank's head office. Further, the preliminary verification includes determination of the direction or posture in which the banknote is received by the ATM 202.

  In step 306, the transaction log 214 is attached to the extracted first image 216. In step 308, the transaction log 214 and the first image 216 are stored in the storage device 212.

  Assume that the first bank note 204 is found to be counterfeit after the transaction ends. At step 310, the reacquired banknote 218 is accepted by the ATM. In step 312, the reacquired image 220 is extracted from the reacquired banknote 218. In step 314, a first image is selected from the storage device 212, and is similarly selected from a group of reacquired images. These selected images are compared using the score calculation operation of step 316. For example, a first image corresponding to a specific first bank note obtains a specific score. Another first image corresponding to another particular first banknote will obtain another particular score, and so on. In step 318, all scores are sorted by degree of similarity so that the highest score represents the highest degree of similarity. The transaction log 214 associated with the highest score is retrieved at step 320.

  FIG. 4 is a schematic diagram of the operation of the image extraction device 208 according to the embodiment of the present invention. In this embodiment, for the purpose of explanation, an image extracting operation for a reacquired bank note 218 is illustrated. These operations are generally applied to image extraction from the first bank note 204 as well. FIG. 4 illustrates image extraction of various portions of the reacquired banknote 218. However, the present invention is not limited to these specific parts, and other suitable parts can be used.

  If a comparison of all banknote postures is executed for both the first banknote 204 and the reacquired banknote 218, a better matching result is realized. These directions include all attitudes that can accept the first bank note into the ATM 202. Furthermore, an improvement in comparison speed can be realized when a group of re-acquired images is compared with a first image in the same posture. In other words, when the first image has a specific posture, time can be saved by not comparing re-acquired images of different specific postures.

  In step 401, the reacquired banknote 218 is deposited in the ATM 202 in a surface forward orientation. It is desirable that the posture in the surface forward direction is deposited several times by the staff member 620 who has been authenticated by the ATM 202. At each separate deposit, a different reacquired image is acquired from the reacquired banknote 218. These different reacquired images are stored in the storage device 212.

  At step 402, the re-acquired banknote 218 has been deposited at the ATM 202 in a reverse orientation. The posture in the reverse direction of the surface is preferably deposited several times by the staff 620 who has been authenticated by the ATM 202. A different reacquired image is acquired from the reacquired banknote 218 for each different deposit. These different reacquired images are stored in the storage device 212.

  In step 403, the reacquired banknote 218 is deposited in the ATM 202 in the posture of the back surface forward direction. It is desirable for the posture in the forward direction of the back side to be deposited several times by an authorized staff member 620 who has been authenticated by the ATM 202. At each separate deposit, a different reacquired image is acquired from the reacquired banknote 218. These different reacquired images are stored in the storage device 212.

  In addition to this, the ATM 202 can be configured so that the reacquired banknote 218 need only be input once. What is necessary is just to comprise the apparatus of ATM202 so that the attitude | position of the banknote 218 of reacquisition may be changed automatically.

  At step 404, the reacquired banknote 218 is deposited in the ATM 202 in the reverse orientation on the back side. It is desirable that the posture in the reverse direction on the reverse side be deposited several times by the staff 620 who has been authenticated by the ATM 202. A different reacquired image is acquired from the reacquired banknote 218 for each different deposit. These different reacquired images are stored in the storage device 212.

  FIG. 5 shows a data structure 500 of transaction information and image data according to an embodiment of the present invention. Data structure 500 is an associated data list as shown in FIG. Data structure 500 can be applied to ATM information 501 and banknote information 505. In addition to this, each banknote information 505 may be independent of the data structure 500 and associated with the ATM information 501. The ATM information 501 includes ATM-specific information such as the ATM identification 502 and the number 504 of banknotes deposited and recorded in the ATM 202. The banknote information 505 includes banknote-specific information such as banknote type 506, banknote attitude 508, deposit date and time 510, user identity 512, mode flag 514 indicating whether it is a normal ticket or a counterfeit ticket, and a first image. 216 or image data 516 including re-acquired image 220.

  FIG. 6 illustrates an example interface 600 of ATM 202 according to an embodiment of the present invention. The interface 600 comprises one or more screens configured to display on the ATM 202 display. The screen displays a normal transaction mode 601 and a tracing mode 603. In the normal transaction mode 601, the ATM 202 is configured to display a normal mode screen 602 to perform a normal transaction with a bank customer. . The normal mode screen 602 provides a portion of the interface 600 that allows a bank customer to perform normal transactions, such as depositing and withdrawing the first bank note 204, depositing foreign currency, credit inquiry, and the like.

  On the other hand, considering that the access to the tracing mode 603 is a special mode of counterfeit bill tracking, it is preferable to require special authentication from a bank having the right to the ATM 202. ATM 202 can be configured to require, for example, an authentication code to access tracing mode 603. The tracing mode 603 is accessed when it is necessary for the authorized clerk 620 to deposit the re-acquired banknote 218 into the ATM 202. In other words, if the first bank note 204 is determined to be counterfeit at the bank head office 410, the bank note is sent back to the ATM 202 as a reacquired bank note 218 to retrieve the transaction log 214.

  In the tracing mode 603, the ATM 202 is configured to display a tracing mode screen 604, 606, 608, 610, 612 and execute a tracing operation. The tracing mode screen provides a portion of the interface 600 that allows an authorized agent 620 to perform a procedure to retrieve the transaction log 214. FIG. 6 illustrates five types of tracing mode screens 604, 606, 608, 610, and 612 for illustrative purposes. However, the present invention is not limited to this. More or fewer tracing mode screens can be provided depending on the particular design of the interface 600.

  Options screen 604 includes an amount option 622 for selecting a particular type of amount of reacquired banknote 218. FIG. 6 illustrates $ 10, $ 20, $ 50, and $ 100 type options 622. The amount option 622 is configured to initiate a command to display a deposit request screen 606 after being selected. Type option 622 is electrically connected to the touch panel portion of display 904. Alternatively, the type option 622 may be electrically connected to an ATM 202 mechanical button (not shown).

  The deposit request screen 606 displays a request to input a reacquired banknote 218 (counterfeit banknote). FIG. 6 shows a deposit request screen 606 that prompts the user to insert a counterfeit banknote five times in the front direction. The certified clerk inserts a reacquired banknote 218 (counterfeit banknote). The broken line in FIG. 6 further includes a deposit request screen several times, each of which prompts the user to insert the same counterfeit banknote in some direction. The description with reference to FIG. 4 describes a procedure for extracting the reacquired image 220 from the reacquired banknote 218. The deposit request screen 608 displays an indication that the deposit procedure has been completed.

  The interface 600 is configured to display a search start screen 610 thereafter. The search start screen 610 includes a search start option 624 configured to start a command to start comparing the re-acquired image 220 and the first image 216 after being selected. In FIG. 6, the search start option 624 is a “Yes” button, which is electrically connected to the touch panel portion of the display 904. In addition, the search start option 624 may be electrically connected to a mechanical button (not shown) of the ATM 202.

  After the comparison operation is completed, the interface 600 is configured to display a comparison result screen 612. The comparison result screen 612 is configured to display a comparison result of the comparison between the reacquired image 220 and the first image 216. FIG. 6 shows a comparison result screen 612 as a display of the transaction log 214.

  FIG. 7 is a schematic diagram of a comparison operation 700 executed by the comparison device 222 according to the embodiment of the present invention. FIG. 7 shows a comparison operation 700 between the re-acquired image 220 and the first image 216. Banknotes are converted into digital data by sensors. In this embodiment, the observation point of the reacquired image 220 includes an observation point value 706. Similarly, the observation point of the first image 216 also includes an observation point value 704. Image characteristics such as color, brightness, saturation, density, unique markings, blood stains, ink stains, pencil writing marks, fading colors, abnormal coloring, damaged parts, creases, holes, tears, etc. Is described. Imaging techniques used to obtain observation point values include using infrared, ultraviolet, X-ray, photoluminescence, chemiluminescence, fluorescence, magnetic resonance imaging (MRI), chemicals, etc. .

  The observation point value 706 of the reacquired image 220 is compared with the corresponding observation point value 704 of the first image 216. One computational technique for image comparison is the use of Euclidean distance. For example, the Euclidean distance between the images in FIG. 7 is as follows:

  A relatively large Euclidean distance indicates that the reacquired bank note 218 is unlikely to be the same as the first bank note 204. A relatively small Euclidean distance indicates that the reacquired bank note 218 is likely to be the same as the first bank note 204. When such a technique is used, it is possible to determine in advance whether a certain range of similarities is determined in advance, and whether the images match each other using a certain Euclidean distance within the similarity range as a threshold value. It goes without saying that the Euclidean distance calculation formula is one of the techniques for comparing image data, and other techniques can be adopted.

  FIG. 8 is a flowchart of an overall comparison process 800 using Euclidean distance calculation according to an embodiment of the present invention. The comparison process is executed by the tracing system 200 including at least the comparison device 222 and other system devices 900.

  In step 801, the re-acquired image 220 is received. Tracing system 200 determines the direction (or position) of reacquired banknote 218. Next, the first image 216 from the first bank note 204 needs to be selected. Therefore, in step 804, the same direction as the first image is selected to match the direction of the re-acquired banknote 218 deposited. Next, in step 806, the image is normalized, and the maximum and minimum luminance values of the image are aligned. In step 808, the position is corrected. The purpose of the position correction is to adjust the position of the digital format of the image and eliminate a minute positional shift between the re-acquired image 220 and the first image 216.

  In step 810, the Euclidean distance between images is calculated. An example of Euclidean distance calculation has already been described with reference to FIG. In step 812, it is determined whether the compared image data is the last data of the first banknote to be recorded. If not, the comparison process 800 returns to step 806 to normalize another first image relative to the reacquired image 220. However, if the first image to be compared is the last first image 216, the decision operation 814 determines whether the reacquired image to be compared is the last reacquired image 220 to be compared. . If not, the comparison process returns to step 802. In this case, in step 816, all of the Euclidean distances from all comparisons are sorted in the order of possible matches. The comparison result is provided at step 818. Note that the comparison result does not necessarily represent a match. The comparison result indicates that the first bank note 204 has the greatest possibility of matching.

  Next, implementation of the system and method will be described.

  Portions of the present invention can be conveniently implemented using a conventional general purpose or special purpose digital computer or a microprocessor programmed according to the teachings of the present disclosure, as will be apparent to those skilled in the art.

  FIG. 9 is a block diagram of an apparatus 900 of the tracing system 200 according to an embodiment of the present invention. The device 900 is electrically connected by a bus 912. The tracing system 200 includes a deposit device 206, an image extraction device 208, a transaction log device 210, a storage device 212, and a comparison device 222. Tracing system 200 also includes an input device 902, a display device 904, a memory 908, a CPU 908, and a USB port 910. These devices 900 are comprised of hardware, software, or a combination of hardware and software.

  The present invention includes a computer program product that is a storage medium having stored thereon instructions that can be used to cause a computer to perform or control any of the processes of the present invention. Storage media include floppy (registered trademark) disk, mini disk (MD), optical disk, DVD, CDROM, microdrive, all kinds of disks including magneto-optical disk, ROM, RAM, EPROM, EEPROM, DRAM, VRAM, flash Memory device (including flash card), magnetic or optical card, nano system (including molecular memory IC), RAID device, remote data storage / archive / archive, or any kind suitable for storing instructions and / or data Including, but not limited to, any media or device.

  When stored on any one of the computer-readable storage media, the present invention controls the hardware of a general purpose / dedicated computer or microprocessor, and the computer or microprocessor uses the results of the present invention. Software to allow interaction with other users or other mechanisms. Such software includes, but is not limited to, device drivers, operating systems, and user applications. Ultimately, such computer readable media further includes software for implementing the present invention as described above.

  Included in the (software) programming of the general purpose / dedicated computer or microprocessor is a software module for implementing the teachings of the present invention, including 1 to 1 from the first banknote in accordance with the process of the present invention. Extract one or more images, attach a first transaction log to one or more first images, accept deposit of reacquired banknotes, and select one or more from reacquired banknotes The present invention includes, but is not limited to, a step of extracting the above reacquired image and comparing one or more first images with one or more reacquired images to obtain a comparison result.

  In the foregoing specification, the invention has been described with reference to specific embodiments thereof. It will be apparent, however, that various changes and modifications can be made to the present invention without departing from the spirit and scope of the invention. Accordingly, the specification and drawings are intended for purposes of illustration and are not meant to be limiting.

202 ... ATM
206 ... Deposit device 208 ... Image extraction device 210 ... Transaction log device 212 ... Storage device 214 ... Transaction log 216 ... First image 222 ... Comparison device 224 ... Comparison result.

Claims (14)

A deposit device for depositing the first banknote and a banknote to be reacquired;
One or more first images of the first banknotes and one or more second images of the reacquired banknotes are configured to be extracted by the same sensor. An image extraction device;
A transaction log device for attaching a transaction log to the one or more first images;
A comparison device for comparing the second image of the reacquired banknote with one or more of the first images of the first banknote to obtain a comparison result;
Calculating the degree of similarity of the reacquired banknotes with the second image for one or more of the first images of the first banknotes, and one or more of the first banknotes If the comparison device determines that the number of the first images exceeding the second image of the re-acquired banknote is within a predetermined similarity range, the first bank Search means for searching a transaction log attached to the ticket, and for tracking the reacquired banknote;
Further, the score value of the similarity between the first image and the second image is calculated, and the plurality of scores are calculated based on the score value of the similarity between the second image and each of the first images. The search means has means for sorting the first images,
The reacquired banknote is the first banknote, which has been found to be a counterfeit bill,
An automatic deposit machine with these devices electrically connected. A storage device configured to store the first image and the transaction log, or
The automatic teller machine according to claim 1, further comprising at least one of a network link to an external storage device configured to store the first image and the transaction log. The image extracting device further extracts the first image on the surface side of the first banknote in a first posture,
Extracting the first image on the front side of the first banknote in a second posture;
Extracting the first image on the back side of the first banknote in the first posture;
The automatic teller machine according to any one of claims 1 to 2, wherein the first image on the back side of the first bank note is extracted in the second posture. . The image extracting device further extracts the second image on the surface side of the reacquired banknote in a first posture,
Extracting the second image on the surface side of the reacquired banknote in a second posture;
Extracting the second image on the back side of the reacquired banknote in the first posture;
3. The automatic teller machine according to claim 1, wherein the second image on the back side of the reacquired banknote is extracted in the second posture. .   5. The deposit automatic according to claim 4, wherein the comparison device is configured to compare the second image having a predetermined posture with the first image having a posture corresponding to the second image. Teller machine.   The comparison device is further configured to analyze the feature of the image using the Euclidean distance, and is configured to determine whether the first image and the second image have a predetermined Euclidean distance close to zero. 6. The automatic depositing / depositing machine according to claim 1, further comprising: A bill tracking method comprising the following steps.
(A) The deposit device receives the deposit of the first banknote,
(B) extracting one or more first images from the first banknote with one sensor of an image extracting device;
(C) associating an initial transaction log with the one or more first images and recording it in a transaction log device;
(D) extracting one or more second images of re-acquired banknotes with the sensor;
(E) comparing the second image of the reacquired banknote with one or more of the first images of the first banknote in a comparison device to obtain a comparison result;
(F) calculating the degree of similarity of the re-acquired banknote with the second image for one or more of the first images of the first banknote; If a comparison result is obtained that one or more of the first images are within a predetermined similarity range with respect to the second image of the reacquired banknote, search means To search the transaction log attached to the first banknote and to track the reacquired banknote,
Further, the score value of the similarity between the first image and the second image is calculated, and the plurality of scores are calculated based on the score value of the similarity between the second image and each of the first images. Sorting the first image;
The reacquired banknote is the first banknote, which has been found to be a counterfeit bill,
Said devices or means are electrically connected to each other. The bill tracking method according to claim 7, wherein the step (b) further includes the following steps.
Extracting the first image on the front side of the first banknote in a first posture;
Extracting the first image on the front side of the first banknote in a second posture;
Extracting the first image on the back side of the first banknote in the first posture;
The first image on the back side of the first bank note is extracted in the second posture. 8. The bill tracking method according to claim 7, wherein the step (d) further includes the following steps.
The depositing device receives the reacquired banknote and extracts one or more second images from the reacquired banknote with the sensor. 8. The bill tracking method according to claim 7, wherein the second image extracting step (d) further includes the following steps.
Extracting the second image on the surface side of the reacquired banknote in the first posture;
Extracting the second image on the surface side of the reacquired banknote in a second posture;
Extracting the second image on the back side of the reacquired banknote in the first posture;
The second image on the back side of the reacquired banknote is extracted in the second posture. Comparison step before Symbol (e) is claimed in claim 7, characterized in that a plurality of times in each of the attitude of each of said second image comprises comparing the first image of the corresponding pose Bill tracking method.   The one or more first images have a unique feature to identify a unique bank note, and the unique feature includes information other than the serial number of the first bank note. The bill tracking method according to claim 7, wherein the bill tracking method is one of the following.   The comparison device is further configured to analyze the feature of the image using the Euclidean distance, and is configured to determine whether the first image and the second image have a predetermined Euclidean distance close to zero. The bill tracking method according to claim 7, further comprising:   Each of the steps of the method is stored on a computer readable medium, the method being a set of one or more instructions for tracking banknotes, wherein the processor performs the steps of the method. The bill tracking method according to any one of claims 7 to 13, wherein the bill tracking method is for execution.

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