JP3004497B2 - Banknote counterfeit prevention device for image processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forgery prevention device provided in an image processing apparatus such as a color copying machine or a color scanner which can read and output an image of an object to be read.

[0002]

2. Description of the Related Art Conventionally, crimes of counterfeiting banknotes have occurred in various countries, but counterfeiting banknotes requires special skills and skilled skills. Was limited to those who were trained or a skill group. However, in recent years, with the spread of high-performance color copying machines, banknote counterfeiting cases using color copying machines by criminals who do not have the above-mentioned special background have become a serious problem.

Here, the following countermeasures have been taken to prevent forgery of banknotes or use of counterfeit banknotes.

(1) Use of special ink (2) Judgment of matching of banknote pattern In the above (1), the banknote is manufactured by using an ink that can obtain a special color, and the presence or absence of the special color is determined. Is used to determine whether or not the banknote is a counterfeit banknote. (2) determines whether or not the banknote is a counterfeit banknote based on whether the pattern of the banknote itself set in advance on the determination device side matches and does not match the pattern of the banknote itself to be determined. It is to judge.

In addition to the above, a method of (3) printing a specific pattern has been proposed. In the method (3), a forgery prevention mark or pattern is printed as a specific pattern at a specific position on the bill, and the authenticity of the bill is determined based on the presence or absence of the mark or pattern.

[0006] Japanese Patent Application Laid-Open No. 4-205272 discloses an apparatus for preventing forgery of a banknote due to use of a copying machine. This technology reads the copied
The object to be read is an object to be read which is stored in the copying machine side in advance,
That is, it is determined how similar the bill is and how much the output data is masked / UCR (Under
This is to change the processing conditions of Color Removal (base removal). Therefore, if the object to be read has a high degree of similarity to the stored banknote, the image output from the copier will be different from the image of the object to be read , thereby preventing counterfeiting of the banknote. It is about to be.

[0007]

However, the above (1)
Is difficult to determine with high probability the authenticity of banknotes forged using a color copying machine due to the recent improvement in the performance of color copying machines.

[0008] In the determination based on the above (2), when the banknote is arranged in the determination device while rotating in a predetermined direction,
The determination function for the specific pattern is reduced, and good determination cannot be performed. Further, since one-to-one pattern matching is performed, the processing time becomes longer.

In the determination based on the above (3), as in the case of (2), a favorable determination cannot be made when the banknotes are arranged in a state rotated in a predetermined direction. In order to prevent this, restrictions on the design of the special pattern and the like increase. Furthermore, when this method is actually adopted, the current banknote must be collected and the specific pattern must be newly added to the collected banknote, or the banknote must be newly manufactured.

As described above, the above-mentioned methods (1) to (3) have the above-mentioned problems, respectively, and it is difficult to determine the authenticity of a bill with high accuracy.

According to the technique disclosed in the above publication, when it is determined that the object to be read has a high similarity to the bill stored in the copying machine, copying of the bill, that is, forgery is performed. although capable of preventing forgery prevention function of the banknote is dependent on the accuracy of determining the degree of similarity is not sufficiently studied with the improvement of the accuracy. Further, in the case where the criterion for determining the authenticity of a banknote is simply strictly uniform, forgery of the banknote can be prevented, but the inconvenience that a reading object similar to a banknote cannot be copied cannot be performed. Invite you. Therefore, the technique disclosed in the above publication has a problem that it cannot be determined with high accuracy whether or not the object to be read is a bill.

[0012]

In order to solve the above problems SUMMARY OF THE INVENTION The bill counterfeiting prevention device of the image processing apparatus of the present invention recognizes an image reading unit, the image data from the image reading means, the bill Image processing means for performing processing for
On the basis of the output and the first criterion predetermined for the image processing means, the first paper money judging means for performing a preliminary determination object to be read is whether there is <br/> possibility of the bill in the image reading means And the first bill determining means determines that there is a possibility of a bill.
After the setting, the output of the image processing means and the predetermined
That based on the second criterion, and the second paper money judging means for performing the determination of whether the read object is a banknote, the second
Hit setting the second criterion by the bill determining means
Until a predetermined time before the current judgment
Within the period, the possibility of the bill in the first bill determining means
When it is determined that there has been done, the determination references control means for changing the second criterion to the determined easily become the direction that the paper money, the possibility of the bill in the first bill determining means
When it is determined that it is not, and when the bill not equal is determined by the second paper money judging means, reading this determination is performed
While the output of the image data of the object is permitted, the second paper
An output control unit for prohibiting the output of image data of the read object for which the determination is made when the banknote is determined to be a banknote by the banknote determination unit is provided.

According to the above arrangement, the image data obtained from the image reading means is obtained.
The image data of the read object is read by the image processing means.
Is a process for recognizing bills, and the first and second
Processing for making a judgment by the bill judgment means is performed. No.
In one banknote determination unit, the output of the image processing unit and the first
There is a possibility that the object to be read is a bill based on
Preliminary determination is made as to whether or not it is. In addition, the second bill judgment hand
In the stage, if there is a possibility of a bill by the first bill determination means,
If it is determined, the output of the image processing means and the determination are further performed.
Based on the second judgment criterion set by the reference control means
This determination is made as to whether or not the object to be read is a bill.
It is.

Here, the criterion control means determines whether the current
Within a certain period of time before
The first banknote determination means determines that there is a possibility of a banknote.
If it is performed, the above-mentioned object to be read
2 Change the criterion to a direction that makes it easier to determine
Change.

Thus, in the above configuration, the bill
After the object to be read is processed,
When a possible read object is processed, the read pair
Stricter criteria for determining whether an elephant is a banknote
Is difficult to process. As a result, the image processing device
Counterfeiting of used banknotes can be prevented with high accuracy
You.

[0016] The bill counterfeiting prevention device of the image processing apparatus of the present invention, an image to be an image reading unit for image <br/> image data from the image reading means, the processing for recognizing the banknote processing means, set output and advance of the image processing unit
That based on the first criterion, reading by the image reading means
A first banknote determination unit that performs a preliminary determination as to whether or not the target object may be a banknote , and the first banknote determination unit determines whether the banknote is valid.
After it is determined that there is potential, on the basis of the output and the previously determined second criterion of the image processing unit, the reading pairs
Stores that elephant product and the second paper money judging means for performing the determination of whether the bill is <br/> determined that there is a possibility of the bill in the first bill determining means storage means, the output of the image processing means, based on the third criteria predetermined the held back surface of each bill image data, and previously, this
The third bill determining means and said second criterion in the second bill determining means for reading object is to determine whether or not there could be a rear surface of the object to be read stored in the storage means when setting the likelihood of the bill in the storage means
It was been determined that Tei has been stored, and a third
When in the bill determining means is determined that there is a possibility of the back, and the determination reference control means for changing the second criterion to the determined easily becomes a direction to be paper money, the first paper money determination
When it is determined that there is no possibility of a bill by the means, and when it is determined that the bill is not a bill by the second bill determination means,
While allowing the output of the image data of the object to be read this determination is made, when it is determine <br/> constant If it is a bill in the second bill determination section, reading this determination is performed Object image
Output control means for prohibiting data output.

According to the above arrangement, the image data obtained from the image reading means is obtained.
The image data of the read object is read by the image processing means.
Is a process for recognizing bills, and the first, second and
And a process for making a judgment by the third banknote judgment means is performed.
You. In the first bill judgment means and the second bill judgment means,
The above-described determination operation is performed.

[0018] Here, the first bill determining means determines the bill
If it is determined that there is a possibility, this fact is recorded in the storage means.
Remembered. In the third bill determining means, the image processing means
Output, image data of the back side of each banknote held in advance,
And the above-described reading pair
The elephant is the back side of the object to be read stored in the storage means.
A determination is made as to whether there is a possibility. And judge
In reference control means, the content is not stored in the memorize means
May be the back side by the third bill judging means
When it is determined that there is a property, the second criterion is
Is changed in a direction that makes it easier to determine that

Thus, in the above configuration, the bill
After the possible read object has been processed,
When a potential backside object is processed,
Stricter criteria for determining whether the object is a banknote,
Makes banknotes difficult to process. This allows the image processing
Banknote counterfeiting with high accuracy can be prevented.
Wear.

Further, the bill counterfeiting prevention device of the image processing apparatus of the present invention can store a predetermined amount of paper of a predetermined size for outputting, for example, copying an image, A paper unit, and a manual paper feed unit capable of appropriately placing a small amount of the paper smaller than the amount that can be accommodated in the main paper feed unit. in banknote counterfeiting prevention device of the image processing apparatus has become possible prohibited, and manual feed detecting means for detecting that the paper feed by the manual paper feed unit is performed, and the image reading means, above
The image data from the serial image reading means, image processing means for performing processing for recognizing the banknote, on the basis of the output and the first criterion predetermined for the image processing means, reading by the image reading means whether the object is a possibility of the bill
A first bill determining means for performing whether the preliminary determination, the first sheet
After the bill judgment means judges that there is a possibility of a bill,
Based on the output and the pre-determined second criterion of the image processing means, second bill determining means for performing whether or not the present-size <br/> constant or the reading object is a banknote, the second bill determination when setting the second criterion in section, of the currently determined
Within a certain period of time before
When the first banknote determination unit determines that there is a possibility of a banknote, and when the manual paper feed detection unit detects that manual paper feed is performed, the second determination criterion is determined by the banknote .
And criteria controlling means for changing to a certain determined to be easily made direction, when there is no possibility of the bill in the first bill determining means
If it is determined, and it is a bill in the second paper money judging means
When the Most is determined, read object this determination is performed
The output of the image data of the second banknote,
Output means for prohibiting the output of image data of the object to be read when the means is determined to be a bill.

According to the above arrangement, the criterion control means is provided.
Is up to a certain period of time before the current judgment
In the period of the above, the possibility of a bill is determined by the first bill determination means.
Has been determined, and the current reading pair
It is determined that the elephant may be a bill, and
The paper feed detector detects that manual paper feed is being performed.
The second criterion is determined to be a bill.
Change to a direction that makes it easier.

Thus, in the above configuration, the bill
After the possible read object has been processed,
Objects that may be scanned are processed.
When the paper is fed by the paper feed unit, the object to be read
Stricter criteria for determining whether or not there is
Comb. Thereby, the bill using the image processing device
Can be prevented with high accuracy.

That is, for example, the present copying machine which is an image processing apparatus
Then, for example, when the administrator
Supply can be banned. Therefore, copy machine
Non-administrators make copies for banknote counterfeiting
In this case, a manual paper feeder must be used.
Thus, if the above control is performed, counterfeiting of banknotes
It can be prevented with high accuracy.

[0024] The bill counterfeiting prevention device of the image processing apparatus of the present invention, an image to be an image reading unit for image <br/> image data from the image reading means, the processing for recognizing the banknote processing means, set output and advance of the image processing unit
That based on the first criterion, reading by the image reading means
A first banknote determination unit that performs a preliminary determination as to whether or not the target object may be a banknote , and the first banknote determination unit determines whether the banknote is valid.
After it is determined that there is potential, on the basis of the output and the previously determined second criterion of the image processing unit, the reading pairs
A second bill determining means elephant product performs the determination of whether the bill, likely there is a bill in the first bill determining means
If the object to be read determined to be a banknote is
And nationality determination means for determining from the image data of the nationality of the object to be read of the bill, the reading is determined by the nationality determination means
And nationality storage means for storing the nationality of the object, the first
This reading that in the determination means has been determined that there is a possibility of the bill
The third banknote determining means for determining whether or not the nationality of the object to be picked up matches the nationality stored in the nationality storage means, and the second determination criterion by the second banknote determining means are set. in, when the determination that there nationality coincides with the third bill determining means is being performed, the determination references control means for changing the second criterion to the determined easily becomes a direction to be paper money, the first 1 The possibility of a bill is determined by the bill determination means
When it is determined that it is not, and when the bill not equal is determined by the second paper money judging means, reading this determination is performed
While the output of the image data of the object is permitted, the second paper
An output control unit for prohibiting the output of image data of the read object for which the determination is made when the banknote is determined to be a banknote by the banknote determination unit is provided.

According to the above arrangement, the first bill determining means can be used.
If it is determined that there is a possibility of banknotes, nationality determination means
Assumes that the object to be read is a bill, and
From the image data of the object to be read, and memorize the nationality
It is stored in the means. And the third bill judgment means is
The first bill determining means has determined that there is a possibility of a bill
The nationality of the object to be read this time and the above-mentioned nationality storage means
It is determined whether there is a match with the nationality stored in. Judgment
The reference control means determines that there is a nationality match by the third bill determination means.
Is determined, the second criterion is a banknote.
Is changed to a direction that makes it easier to determine.

Therefore, the object to be read which may be a bill is
After being processed, the object to be read again may be a bill
When processed, the nationalities of both these scanned objects match
In this case, the criterion for determining whether or not the
Thus, the bill is hardly processed. This allows
Preventing banknote forgery with high precision using image processing equipment
be able to.

Also, the bill counterfeit prevention device of the image processing apparatus of the present invention has a backup power supply, and connects the backup power supply to the storage means when the normal power supply to the storage means is cut off. Storage backup means that performs

According to the above configuration, the information is stored due to a power failure or the like.
Even if the regular power supply to the means is interrupted,
The backup power supply is connected to the storage means,
The storage contents of the means are retained. This ensures high reliability
Can be provided.

Further, the bill counterfeit prevention device of the image processing apparatus according to the present invention is characterized in that it comprises storage control means for deleting the contents stored in the storage means after a lapse of a predetermined time.

According to the above arrangement, the information stored in the storage means is stored.
Is deleted after a certain period of time.
The period during which the criteria for determining whether a
Limited. As a result, the object to be read that is not a bill
Misjudgment can and child prevented and it is.

Further, the bill counterfeit prevention device of the image processing apparatus according to the present invention includes storage information transmitting means for transmitting the contents of the storage means to a bill counterfeit prevention device of another image processing device via a network. It is characterized by:

According to the above arrangement, the stored information transmitting means
Therefore, the contents of the storage means can be
Since it is sent to the banknote counterfeit prevention device of the image processing device,
In the banknote forgery prevention device of the image processing device,
The stored contents of the column can be used. Therefore, the net
Banknotes using other image processing devices connected by workpieces
Forgery can also be reliably prevented.

The bill counterfeit prevention device of the image processing apparatus according to the present invention is different from the bill counterfeit prevention device of another image processing device in that
It is characterized in that it comprises storage information receiving means for retrieving the contents stored in the storage means via a network and taking in the corresponding storage means.

According to the above arrangement, the stored information receiving means
From the counterfeit prevention device of other image processing devices
Recall the contents stored in the storage means via the work
Can be captured. Therefore, it has a similar configuration
Using the storage contents of storage means in other devices
Can be. Therefore, network-connected image processing
Counterfeiting of banknotes using the device can be reliably prevented.
You.

[0035]

[Embodiment 1] One embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 2, the digital copying machine as the image processing apparatus of the present embodiment includes a document table 27 made of hard transparent glass at the upper end of the copying machine main body 26. Below the document table 27, a lamp unit 1, mirrors 2, 3, 4, a lens unit 5, a CCD (Charge Co.)
(Upled Device) A scanner 22 having the sensor 6 and the like is provided. In the scanner 22, the document table 2
The image of the object to be read (not shown) placed on 7 is irradiated with the object to be read by the lamp unit 1, and the reflected light is transmitted through the mirrors 2, 3 and 4 and the lens unit 5. By being guided to the light receiving surface of the CCD sensor 6, it is taken in as an electric signal.

Below the scanner 22, the laser driver unit 7 is provided. The above-mentioned CCD sensor 6
Image data image data of a captured object to be read, after being processed by the image processing section (not shown) performs image processing for the copy is sent to the laser driver unit 7, the laser driver unit 7, input by In response to this, laser light is emitted from, for example, a semiconductor laser inside.

The laser light emitted from the laser driver unit 7 is reflected by mirrors 8 and 9 disposed on the optical path and is irradiated on the photosensitive drum 10 rotating in the direction of arrow B, and To form an electrostatic latent image. Around the photoconductor drum 10, a charger 16 for uniformly charging the surface of the photoconductor drum 10 to a predetermined potential prior to the exposure with the laser beam is provided. further,
A developing device 28 that supplies toner to the electrostatic latent image on the photosensitive drum 10 to develop the electrostatic latent image on the photosensitive drum 10 from the charger 16 toward the rotation direction of the photosensitive drum 10, and temporarily removes the toner image on the photosensitive drum 10. A transfer belt 17 to be transferred, a cleaning device 21 for removing toner remaining on the surface of the photoconductor drum 10, and a discharge lamp 15 for removing a residual potential of the photoconductor drum 10 prior to the next charging are arranged in this order. ing.

The developing device 28 includes the black developing tank 1
1, a yellow developing tank 12, a magenta developing tank 13, and a cyan developing tank 14. Each of the developing tanks 11 to 14 stores a toner of a corresponding color. The transfer belt 17 is endless and provided so as to be movable in the direction of the arrow, and a part of the transfer belt 17 is pressed against the photosensitive drum 10 so that the toner image on the photosensitive drum 10 is transferred.

On the paper supply side for the transfer belt 17, a registration roller 19 for supplying paper to the transfer belt 17 at a predetermined timing, a paper supply cassette 20 as a main paper supply unit containing paper, and a paper supply A manual paper feed unit 23 on which the paper is placed is provided. In the vicinity of the paper feed cassette 20 and the manual paper feed unit 23, a paper feed roller 24 for transporting paper, a transport roller 25, and the like are provided. A registration roller 19 is provided below the transfer belt 17.
A transfer roller 18 is provided for pressing the sheet fed from the transfer belt 17 against the transfer belt 17 and transferring the toner image on the transfer belt 17 to the sheet.

On the paper output side with respect to the transfer belt 17, a transport belt 30 for transporting the paper after the toner transfer, a fixing device 31 for heating and fixing the toner image on the paper, and a discharge roller 32 for discharging the paper after the fixing outside the machine Is provided.

In the above configuration, the color copy (3 color
copy) is performed according to the following operation procedure. First, the charger 1
When the surface 6 uniformly charges the surface of the photoconductor drum 10, the first scan is performed by the scanner 22. At this time, yellow data is generated by the image processing unit based on the image data (R, G, B) captured by the CCD sensor 6. The yellow data is output from the laser driver unit 7 as laser light, and the laser light exposes the surface of the photosensitive drum 10 to form a yellow electrostatic latent image on the exposed portion. Next, yellow toner from the yellow developing tank 12 is supplied to the electrostatic latent image in the image area, and a toner image of the same color is formed.

Next, the yellow toner image is transferred to the transfer belt 17 which is pressed against the photosensitive drum 10. At this time, a part of the toner that does not contribute to the transfer remains on the surface of the photoreceptor drum 10, and the cleaning device 21 scrapes off the residual toner. Further, the charge removing lamp 15 removes residual charges on the surface of the photosensitive drum 10.

When the above processing is completed, the charger 16 uniformly charges the surface of the photosensitive drum 10 again, and the scanner 22
Performs the second scan. The image data thus obtained becomes magenta data via the image processing unit, and is radiated as laser light from the laser driver unit 7 to the photosensitive drum 10 to form a magenta electrostatic latent image. . Next, magenta toner is supplied from the magenta developing tank 13, and a toner image of the same color is formed on the photosensitive drum 10. Then, the magenta toner image is transferred onto the yellow toner image on the transfer belt 17 to perform image superposition. After that, the cleaning device 21 and the static elimination lamp 1
When the same processing as described above is performed, the charger 16 becomes
The photosensitive drum 10 is uniformly charged, a third scan by the scanner 22 is performed, and cyan data is irradiated as laser light, thereby forming a cyan electrostatic latent image on the photosensitive drum 10. . Then, cyan toner is supplied from the cyan developing tank 14 to the photoconductor drum 10 to form a toner image of the same color, and the cyan toner image is transferred onto the magenta toner image on the transfer belt 17 so that the final image is obtained. Image superposition is performed.

Thereafter, the toner image on the transfer belt 17 on which the image is superimposed is transferred onto a sheet by a transfer roller 18, and the toner image is heated and fixed in a fixing device 31. Is discharged.

The above-described process is a process for three colors, and in the case of a four-color process, a process using black toner stored in the black developing tank 11 is added to the above process. On the other hand, black and white copy
The black developing tank 11 is applied to the electrostatic latent image on the photosensitive drum 10.
Is performed by transferring the toner image onto a sheet via a transfer belt 17.

Next, the structure of the bill counterfeiting prevention device provided in the copying machine will be described with reference to FIG. The banknote forgery prevention device includes an image reading unit 41 as an image reading unit, an image processing unit 42 as an image processing control unit, a banknote determination unit 43 as first and second banknote determination units, and an output control unit as an output control unit. 44, a storage unit 45 as storage means, a storage control unit 46 as storage control means, a storage backup unit 47 as storage backup means, and a judgment value control unit 48 as judgment reference control means.

The image reading section 41 comprises a scanner 22 including the CCD sensor 6 in this embodiment. The image processing section 42 performs image processing for recognizing the image data read by the image reading section 41 as a bill. The bill determination unit 43 is configured to execute the image processing unit 42
And a first determination value as a first determination criterion, a preliminary determination is made to determine whether or not the reading target read by the image reading unit 41 is likely to be a bill.
Further, the banknote determination unit 43 outputs the second determination criterion set by the output of the image processing unit 42 and the determination value control unit 48.
Based on the determination value, the main determination is performed to determine whether the read target is a bill. That is, the bill determination section 43, a bill possibility chromatic determined that there is a possibility the reading object is a banknote, or with the object to be read to perform the banknote potential-free determination of the potential without a bill, banknotes affirmative determination that the read object is a bill, or in which the object to be read to perform the banknote negative determination that the non-paper money.

The storage unit 45 stores the above-mentioned reserve in the bill determination unit 43.
The storage determination result is stored. The output control unit 44
The upper part of the bill judging unit 43 as to whether or not the object to be read is a bill.
The permission or prohibition of the output of the image data is controlled based on the preliminary or final determination result. The criterion value control unit 48 performs a predetermined time period
Based on that determination result, it is to modify the second determination value. And, for example, the image processing unit 42 is a RAM
And an RO for storing an operation program of the CPU
M, the bill determination unit 43 and the output control unit 44 are a CPU and the ROM, and the determination value control unit 48 is a RAM, a CPU and the R
The OM and the storage unit 45 are each configured by a RAM.

Further, the storage control section 46 controls the storage contents to be erased after a lapse of a predetermined time from the storage in the storage section 45. The storage control unit 46 includes, for example, a CPU, a ROM, and a timer. The above-mentioned fixed time is appropriately set in consideration of an operation when forgery of a bill is performed. The storage backup unit 47 includes a backup power supply such as a button battery, a switching circuit for switching the backup power supply to a regular power supply of a commercial power supply system, and the like. In this case, the backup circuit is connected to the storage section 45 by operating the switching circuit.

Next, the operation of the banknote forgery prevention device in the copying machine will be described with reference to the flowchart of FIG. First, the document was placed on the document table 27 by the image reading unit 41.
When a scan is performed on an object to be read (S1), the image data is input to the image processing unit 42. The image processing unit 42 performs image processing for bill recognition (S
2).

Next, in the bill judgment section 43, the image processing section 4
Based on the output from No. 2 and the first determination value, a preliminary determination is made to determine whether or not the scanned object to be scanned is a banknote (S3). If the result of the preliminary determination is NO, the output control unit 44 permits the output of the image data for copying to the laser driver unit 7 (S10). As a result, the laser driver unit 7 operates as described above, and copying is performed.

On the other hand, if the determination result in S3 is YES, that is, if there is a bill possibility, the fact that the read object is a bill possibility determination is prepared for the next and subsequent determinations. The storage unit 45 stores the information (S4). After that, the bill judgment unit 4
3, based on the stored contents of the storage unit 45, the determination of this time
Remote within the period only up to the previous predetermined time, it determines whether there is a bill likely Yes judgment (S5), the judgment result is N
If it is O, the determination value control unit 48 sets the second determination value to the value of the initial setting (S9). The above-mentioned fixed time is, for example, a fixed time set by the storage control unit 46, that is, the storage unit 45.
Is the time during which the contents of In this case, the bill determination section 43 will determine only whether <br/> or bills likely Yes judgment is stored in the past. Then, the process proceeds to S7. On the other hand, if the determination result in S5 is YES, the determination value control unit 48 changes the second determination value to a lower value (S5).
6). That is, Oh the determination object to be read is whether banknote
Stood, the direction of easy is performed banknotes affirmative determination that the object preparative said read is bills, changes the second determination value.

Thereafter, the banknote judgment section 43 sets the image processing section 4
The above-mentioned object to be read obtained by the processing in step 2 will be described later.
It is determined whether the evaluation value is larger than the second determination value (S7). If the determination result is YES, the reading pair is determined .
Assuming that the elephant is a bill, the output control unit 44 stops outputting the image data for copying (S8). On the other hand, if the decision result in the step S7 is NO, it is determined that the object to be read is not a bill, and the output control unit 44 permits the output of the image data for copying. As a result, the laser driver unit 7 operates as described above, and copying is performed.

Next, an example of the bill recognition process performed by the image processing section 42 will be described with reference to FIGS. When the image data is input from the image reading unit 41, the image processing unit 42 converts the RGB values of the image data from RGB → XYZ →
xy (S21, S22). Note that x and y represent chromaticity. The conversion formula at this time is based on the following formulas 1 and 2.

[0056]

(Equation 1)

In this equation (1)

[0058]

(Equation 2)

Is a conversion matrix (constant) from RGB to XYZ, which is determined in advance by calculation or experiment. The chromaticity (x, y) is as follows: x = X / (X + Y + Z) y = Y / (X + Y + Z) (2)

Next, a histogram based on (x, y, N) as shown in FIG. 5 is created based on the obtained chromaticity (x, y) (S23). Note that N represents frequency. Next, as shown in FIG.
(S24) after detecting the maximum value Nmax of (x, y,
The Euclidean distance di between (Nmax) and (xi, yi, Ni) is calculated (S25). This calculation is performed by the following equation: di = {(x-xi) ² + (y-yi) ² } ^1/2 (3)

Next, (x, y) and (xi, yi) are
It is determined whether or not the distance is within a predetermined distance. If the determination is NO, the process proceeds to S29. If the determination is YES, (x, y, Nma
It is assumed that (x) and (xi, yi, Ni) belong to groups of substantially the same color (S27), and labels L (=
n) is assigned (S28). By such processing,
As shown in FIG. 7, each histogram can be divided into a plurality of color groups having substantially the same color. Note that S23
Steps S28 to S28 are processing procedures for color classification in the image processing unit 42.

Next, it is determined whether or not the label L has been assigned to all the groups of the histogram, that is, whether or not the color classification has been completed (S29).
If so, the process returns to S23 and the following processing is repeated. On the other hand, if the determination result is YES, feature extraction is performed for each classified color group (S30). Items of the feature to be extracted include, for example, the number of pixels, average chromaticity, maximum chromaticity, chromaticity distribution, and the like. These items are individually weighted in advance, and the matching process (S31)
, The weight value of the corresponding item in the object to be read is added. Thus, the image processing unit 42 determines the weight value of the object to be read with respect to the bill.

Therefore, in S3 and S7,
An evaluation value calculated based on such a weight value,
Each determination is made by comparing the first determination value or the second determination value. In this case, the potential read object is a banknote, features of said read object is 100% when corresponds to features that are all preset as a banknote, if not at all applicable 0%. And
The second determination value, range Initial set value a ₁ and the change value a ₂ · a _3, but the change value b ₂ · Initial setting b ₁ of the suspected range If it is a bill of the object preparative said read is not a banknote b ₃ , and an initial set value c ₁ and a changed value c _{2 of} a range assumed to be a bill.
A · c _3, for example, it is set as shown below and in Figure 8.

Here, the changed value is, for example, the value of S6
Is a value set by the determination value control unit 48 in the processing of. Also, change value a ₂ · b ₂ · c ₂ shown below shows an
As an example, a change value in the case where the evaluation value becomes 35%, change value a ₃ · b ₃ · c _3, as an example, early when the Review <br/> value became 75% Set value a ₁・ b ₁・ c
_This is the changed value for ₁ .

[0065]

[Table 1]

Therefore, the first judgment value used for judging whether or not the object to be read is a bill in S3 is 30%, and in this judgment, the evaluation value of the object to be read is less than 30%. If this is the case, the banknote possibility is not determined, while if it is 30% or more, the banknote possibility is determined. The second determination value used for determining whether or not the object to be read in S7 is a bill is 80% in the initial setting, and becomes 70% or 60% after the change.

In the banknote forgery prevention device of the present embodiment,
Due to the operation of the storage control unit 46, the contents of S4 to S6 stored in the storage unit 45 are deleted after a predetermined time has elapsed (S41), as shown in FIG. 9 (S42). further,
As shown in FIG. 10, when the power is turned off during the operation of the copying machine due to the operation of the storage backup unit 47 (S51), the power is switched to the backup power (S52). Thus, the contents of S4 to S6 are maintained.

[0068] The so on, in the present copying machine, after the object to be read of potential bill is processed, the predetermined time
When the object to be read again the possibility of banknotes within is processed, since the object preparative said read to determine whether a banknote
And strict criteria are difficult to handle the bills. As a result, counterfeiting of banknotes using the copying machine is prevented with high accuracy.

Even if the power supply to the storage unit 45 due to a power failure or the like, that is, the supply of the commercial power supply is cut off, the backup power supply is connected to the storage unit 45. Contents are retained. Thereby, high reliability can be provided.

Further, since the contents stored in the storage unit 45 are deleted after a certain period of time by the storage control unit 46,
A period during which the second determination value, which is a criterion for determining whether the read target is a banknote, is strictly set is limited. As a result, it is possible to prevent an erroneous determination that the read object that is not a bill is a bill after the predetermined time.

Embodiment 2 Another embodiment of the present invention will be described below with reference to FIGS. 11 and 12. For convenience of explanation, means having the same functions as the means shown in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 11, the banknote forgery prevention device of this embodiment is replaced with first, second and third banknote determination means in place of the banknote determination section 43 of the banknote forgery prevention device shown in FIG. A banknote determination unit 51 is provided, a storage unit 52 is provided as a storage unit instead of the storage unit 45, and a determination value control unit 53 is provided as a determination reference control unit instead of the determination value control unit 48. .

The storage unit 52 stores the result of the judgment by the bill judgment unit 43. The banknote determination unit 51, like the above-described banknote determination unit 43, outputs the output of the image processing unit 42 and the first
Based on the first determination value as the determination criterion, a preliminary determination is made to determine whether or not the reading target read by the image reading unit 41 is likely to be a bill, and the image processing unit 42 The second set by the output and judgment value control unit 53
Based on the second determination value as a criterion, the reading pair
This determination is performed to determine whether the elephant is a bill. Further, the banknote determination unit 51 is based on the output of the image processing unit 42, the image data of the back surface of each banknote held in advance, the storage content of the storage unit 52, and the third determination value as a third determination criterion. , the reading object are read object is stored in the storage unit 52 as there potentially banknotes, i.e. as to determine whether there is a possibility of the back of the bill, the other determination operations described below Is what you do. The determination operation based on the third determination value is also performed by the reading operation, which is obtained as described above.
The evaluation is performed by comparing the evaluation value of the possibility that the object to be taken is the back side of the bill with a third determination value set in advance according to such an evaluation value. The judgment value control unit 53 sets the second judgment value in the bill judgment unit 51 and
When it is stored in FIG. 2 that the banknote possibility determination has been performed, the banknote determination unit 51 subsequently reads the determination.
For the object to be read, the above-described information stored in the storage unit 52 is stored.
The second determination value is changed to a direction in which the banknote affirmative determination that the object to be read is a banknote is easily performed when the backside possibility determination that the backside of the object to be scanned is possible is performed. Is what you do.

Next, the operation of the above-described bill counterfeit prevention apparatus will be described with reference to FIG.
A description will be given based on the flowchart of FIG. Image reading unit 41
When scanning is performed on the object to be read (S6)
1) The image processing unit 42 performs the above-described image processing for bill recognition on the input image data (S62).

Next, in the bill judgment section 51, the image processing section 4
Based on the output from the second and the first determination value, it is determined whether there is a possibility that the object to be read is a bill (S63). If the determination result is NO, the output control unit 44 permits the output of the image data for copying (S75), and thereby the copying is performed.

On the other hand, if the determination result in S63 is YES, that is, if the bill possibility is determined, the storage unit 52 stores that the read object is a bill possibility determination. (S64). Thereafter, the bill determination section 51, the read
Object preparative it is determined whether match those stored in the storage unit 52 (S65), the determination result is transferred to S67 if YES. On the other hand, if the determination result is NO, the storage unit 52 stores the image data of the reading object (S66). At this time, the picture of the object to be read is kept as it is, or the number of the bill is stored.

Next, the banknote determination section 51 determines whether or not the banknote possibility has been determined up to a predetermined time before the current determination based on the contents stored in the storage section 52 (S6).
7) If the determination result is YES, the determination value control unit 5
No. 3 changes the second determination value to a low value (S68). next,
The bill determination unit 51 stores the read target as a bill possibility determination based on the image data of the back surface of each bill held in advance, the third determination value, the storage content of the storage unit 52, and the like. It is determined whether there is a possibility that the object is the back surface of the object to be read stored in the unit 52 (S69).
If O, the process proceeds to S74. On the other hand, the determination result is YES
If, the determination value control unit 53 changes the second determination value set in S68 to a lower value (S70).

Next, the bill judgment unit 51 calculates the value obtained by adding the evaluation value of the possibility that the object to be read is a bill and the evaluation value of the possibility that the object to be read is the back of the bill as the second judgment value. It is determined whether it is larger than (S71). If the result of the determination is NO, the process proceeds to S75 to execute the output, while if the result of the determination is YES, the output is stopped (S72).

On the other hand, if the decision result in the above S67 is NO, the decision value control section 53 sets the second decision value to the initial setting value (S73). Thereafter, it is determined whether or not the evaluation value of the possibility that the object to be read is a bill is higher than the second determination value (S74). If the result of this determination is YES, the output control unit 44 stops outputting the image data for copying (S72), and if NO, outputs the image data for copying (S75).

Also, in the banknote forgery prevention device of this embodiment, the contents of S64 to S70 stored in the storage unit 45 are deleted after a certain period of time by the operation of the storage control unit 46 shown in FIG. Further, by the operation of the storage backup unit 47 shown in FIG. 10, even when the power is turned off during the operation of the copying machine, the backup power is connected and the contents of S64 to S70 are retained.

[0081] In the banknote counterfeiting prevention device of the present embodiment in the above so that, when after the reading object of potential bill is processed, the object to be read of the possibility of the rear surface of the bill is processed, The criterion for determining whether or not the object to be read is a bill is strict, so that the bill is hardly processed. This allows
Forgery of banknotes using the present color copying machine can be prevented with high accuracy. The functions provided by the storage control unit 46 and the storage backup unit 47 are the same as those of the banknote forgery prevention device shown in the first embodiment.

Embodiment 3 Still another embodiment of the present invention will be described below with reference to FIG. 2 and FIGS. For convenience of explanation,
Means having the same functions as the means shown in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The image processing apparatus provided with the banknote forgery prevention device of this embodiment, that is, the color copier, is operated by the administrator of the copier to feed the paper shown in FIG. Cassette 20 and paper feed cassette 20
When the paper can be fed from the manual paper feed unit 23 that can manually place a smaller amount of paper than the capacity that can be stored in This is a system in which paper can be supplied only from the manual paper supply unit 23. The configuration that enables the use of the paper feed cassette 20 by the operation of the administrator includes, for example, the input of the personal identification number to the copier by the administrator.
Is unlocked. The manual paper feed unit 23 includes a manual feed mode detection unit 65 described later.
Is provided. The manual feed mode detection unit 65 is composed of, for example, a switch that detects that a sheet is arranged at this position, that is, that paper feeding in the manual feed mode is performed.

As shown in FIG. 13, the banknote forgery prevention apparatus of this embodiment has an image reading section 41, an image processing section 42, a banknote determination section 62 as first and second banknote determination sections, and a storage section. Banknote judgment storage unit 63 as a storage information transmitting and receiving unit 64 as a storage information transmitting unit and a storage information receiving unit, the manual insertion mode detecting unit 65 as a manual paper feed detecting unit, a banknote determination value control unit as a determination reference control unit 66 and an output control unit 44.

The bill judging section 62 can determine that the object to be read by the image reading section 41 is a bill based on the output of the image processing section 42 and the first judgment value as the first judgment reference. A preliminary determination is made to determine whether or not there is a property, and the output of the image processing unit 42 and the bill determination value control unit 66
Based on the second determination value as the second determination criterion set in, the main determination is performed to determine whether or not the read target is a banknote.

The bill determination storage unit 63 stores the determination result of the bill determination unit 62,
The storage contents of the banknote determination storage unit of another copying machine input through the MFP are stored.

The storage information transmitting / receiving section 64 transmits the contents stored in the bill determination storage section 63 to another copying machine via the network, and calls up the stored contents of the bill determination storage section in the copying machine from the other copying machine. To receive.

The bill judgment value control unit 66, as described later,
The second determination value for the determination by the bill determination unit 62 is changed based on the determination result by the bill determination unit 62.

Next, the operation of the above-described bill counterfeit prevention apparatus will be described with reference to FIG.
A description will be given based on the flowchart of FIG. Image reading unit 41
When scanning is performed on the object to be read (S8)
1) The image processing unit 42 performs the above-described image processing for bill recognition on the input image data (S82).

Next, in the bill judgment section 62, the image processing section 4
Based on the output from the second and the first determination value, it is determined whether there is a possibility that the object to be read is a bill (S83). If the determination result is NO, the output control unit 44 permits the output of the image data for copying (S95), and the copying is thereby performed.

On the other hand, if the decision result in the step S83 is YES, the bill judgment storing section 63 stores that the read object is a bill possibility judgment (S84). Further, the stored information transmitting / receiving section 64 transmits the stored contents to another copying machine via the network (S85).

Next, the banknote determination section 62 determines whether or not the banknote possibility has been determined up to a predetermined time before the current determination based on the stored contents of the banknote determination storage section 63 ( S86), if this determination result is NO, the bill determination value control unit 66 sets the second determination value to the initial setting value (S9).
4) The process proceeds to S92.

On the other hand, if the judgment result in S86 is YES, the bill judgment value control unit 66 changes the second judgment value to a lower value (S87). Next, based on the output of the manual feed mode detection unit 65, the bill determining unit 62 determines whether or not copying is performed in the manual feed mode (S88). If the determination result is NO, the process proceeds to S92. On the other hand, if the determination result is YES, it is determined that the mode is the manual feed mode.
3 is stored (S89). Then, the stored information transmitting / receiving unit 6
4 transmits the stored contents to another copying machine (S90), and the bill determination value control unit 66 changes the second determination value to a lower value (S91).

Thereafter, the bill judging section 62 judges whether or not the evaluation value of the possibility that the object to be read is a bill is higher than the second judgment value (S92). If the result of this determination is YES, the output control unit 44 stops outputting the image data for copying (S93), and if NO, outputs the image data for copying (S95).

Further, in the present banknote forgery prevention device, the above S8
The operation shown in FIG. 15 is performed in response to the operations of S5 and S90.

In this operation, in the bill counterfeiting prevention device of another copying machine, when the possibility of bill is determined, that is, when the reading object having the possibility of bill is about to be copied (S101). The above determination result is stored in the bill determination storage unit of the device. Then, the stored content is called from the other device via the network, and the stored information transmitting / receiving unit 64 of the present device receives the content (S102), and the bill determination storage unit 63 stores the content (S103). Further, in the bill counterfeiting prevention device of another copying machine, when the reading object for which the bill possibility has been determined is about to be copied in the manual feed mode (S104), the determination result is stored in the bill determination memory of the device. It is stored in the section. Then, the stored information is received by the storage information transmission / reception unit 64 of the present apparatus via the network (S105), and the bill determination storage unit 63 stores the content (S106).

Therefore, in such a configuration, the determinations in S86 and S88 shown in FIG.
The processing is performed in a state where the storage contents of S106 and S106 are also added. That is, in other copying machines connected by a network, if the object to be read with a potential bill is about to be copied by the manual feed mode, also in this banknote counterfeiting prevention device, the lower gel a second bill determination value Will be.

Further, the banknote forgery prevention device of this embodiment may also include the storage control unit 46 and the storage backup unit 47 shown in FIG. In this case, S84
The contents stored in the banknote determination storage unit 63 among S90 to S90 are deleted after a certain period of time, and the contents are retained even when the power is turned off.

As described above, in the banknote forgery prevention apparatus of this embodiment, the object to be read which may be a banknote is copied, and the object to be subsequently copied may be a banknote. when the paper feed is performed by 23, it said read Totai
The criterion for determining whether or not the elephant is a banknote is made strict to make it difficult for the banknote to be processed. That is, when copying is performed by this copying machine, paper cannot be fed from the paper feed cassette 20 except for a person other than the administrator of the copying machine or a person who has obtained the permission of the administrator. Paper must be fed. Therefore, when copying is performed using the copying machine for counterfeiting banknotes, the probability of using the manual paper feed unit 23 increases. Therefore, by performing the above-described control, forgery of banknotes using the present color copying machine can be prevented with high accuracy.

[0100] In the case where the object to be read , which may be a bill, is to be copied in the manual feed mode in another copying machine connected by a network, the object to be read is also used in the present bill counterfeit prevention apparatus. The criterion for determining whether or not the bill is strict is set to make it difficult for the bill to be processed.
Therefore, forgery of a bill using another copying machine connected via a network can be surely prevented.

[Embodiment 4] Still another embodiment of the present invention will be described below with reference to FIGS. For convenience of explanation, means having the same functions as the means shown in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 16, the banknote forgery prevention apparatus of this embodiment has an image processing unit 42, a banknote determination unit 62, and a banknote determination value control unit 66 of the banknote forgery prevention apparatus shown in FIG.
The cash forte, respectively, the image processing section 73 as an image processing unit, provided with a banknote judgment unit 74 and the paper currency determination value controller 75 as the first to third bill determination section, country information storage as nationality storage means A unit 71 and a country-specific information judging unit 72 as nationality judging means are added.

The image processing section 73 performs image processing for recognizing bills and recognizing country-specific information as described above. The country-specific information is information indicating the issuing country, that is, the nationality, when the object to be read is a bill. The country information storage unit 71 stores the country information determined by the country information determination unit 72, that is, the nationality. The country-specific information determination unit 72 determines the country-specific information of the reading target that has been determined to be a bill by the bill determination unit 74. This determination is made based on, for example, data indicating a bill number or a picture.

[0104] The bill judgment unit 74 calculates the bill based on the output of the image processing unit 73 and a first judgment value as a first judgment criterion.
It is determined whether there is a possibility that the read object read by the image processing unit 73 is a banknote, and the output of the image processing unit 73 and the second set by the banknote determination value control unit 75 are set.
Based on the second determination value as a criterion, the reading pair
It is determined whether the elephant is a bill. In addition, the banknote determination unit 74 stores the country-specific information of the reading target that has been determined to be a banknote based on the storage contents of the banknote determination storage unit 63 and the country-specific information storage unit 71 and the third determination value. Then, it is determined whether or not it matches the country-specific information of the reading target which has been previously determined to be a bill.

Next, the operation of the above-described bill counterfeit prevention apparatus will be described with reference to FIG.
A description will be given based on the flowchart of FIG. Image reading unit 41
When scanning is performed on the object to be read (S1)
21), the image processing section 73 performs image processing on the input image data for bill recognition and country-specific information recognition (S122).

Next, the bill determining section 74 determines whether the image processing section 7
Then, it is determined whether or not there is a possibility that the object to be read is a bill based on the output from No. 3 and the first determination value (S123). If the determination result is NO, the output control unit 44 permits the output of the image data for copying (S137), and the copying is thereby performed.

On the other hand, if the decision result in the step S123 is YES, it is determined that the read object is a bill possibility determination, and the bill determination storage unit 63 as a bill determination storage unit.
Is stored (S124). Also, the stored information transmitting / receiving unit 64
Transmits the stored contents to another copying machine via the network (S125).

Next, the country-specific information judging section 72 executes the processing in S12.
Based on the image data of the object to be read for which the bill possibility has been determined in 3, the country information indicated by the number or pattern of the bill is recognized, and the possibility of the bill of which country is the read object is recognized. It is determined whether there is (S126).
Then, the country information storage unit 71 stores the above determination result (S127). Further, the storage information transmitting / receiving section 64 transmits the stored contents to another copying machine via the network (S128).

Next, the banknote determination section 74 determines, based on the stored contents of the banknote determination storage section 63, whether or not the banknote possibility has been determined up to a predetermined time before this determination (S129). ), If this determination result is NO, the bill determination value control unit 75 sets the second determination value to the initial setting value (S1).
36), and proceed to S134.

On the other hand, if the judgment result in S129 is YES, the bill judgment value control section 75 changes the second judgment value to a lower value (S130). Next, the country-specific information determination unit 72
Determining country information read object is the object of the determination in 129 (S131), the bill determination section 74, and country-specific information obtained by the judgment, country-specific information with the determination in S123 It is determined whether or not the country information of the object to be read stored in the storage unit 71 matches (S132). Then, if this determination result is NO, the process proceeds to S134,
If the determination result is YES, the bill determination value control unit 75
The second determination value is changed to a value lower than the value set in S130 (S133).

[0111] After that, the bill determination section 74, the evaluation value is equal to or is higher than the second determination value (S13
4). Then, the output control unit 44 determines that the determination result is YE
If S, the output of the image data for copying is stopped (S13).
5) If NO, copy image data is output (S137).

Further, in the present bill counterfeit prevention device, the above S1
The operation shown in FIG. 18 is performed in correspondence with the operations of S25 and S128.

In this operation, when an object to be read , which may be a bill, is to be copied in the bill counterfeiting prevention device of another copying machine (S141), the above determination result is stored in the bill determination storage unit of that device. It is memorized. Then, the storage content is called from the other device through a network,
This is received by the storage information transmitting / receiving unit 64 of the present apparatus (S14).
2), the bill determination storage unit 63 stores the above contents (S1).
43). Further, when the storage content of the country-specific information of the object to be read is received from another device (S144), this is stored in the bill determination storage unit 63 (S145).

Therefore, in such a configuration, the determination in S132 shown in FIG. 17 is performed in a state where the contents stored in S143 and S145 are also added. That is,
In another copier connected by a network , the country-specific information of the object to be read , which may be a bill, may be the object to be read , which may be a bill previously stored in the apparatus.
If a match with a country-specific information of the object, in the present banknote counterfeiting prevention apparatus, the second paper money determination value to below the gel.

Further, the banknote forgery prevention device of this embodiment may also include the storage control unit 46 and the storage backup unit 47 shown in FIG. In this case, the storage control unit 46 and the storage backup unit 47 control or back up the storage contents of the bill determination storage unit 63 and the country information storage unit 71. And S124
The contents stored in the banknote judgment storage unit 63 or the country information storage unit 71 in S133 to S133 are deleted after a certain period of time has elapsed, and the contents are retained even when the power is turned off.

As described above, in the banknote forgery prevention apparatus of the present embodiment, after the object to be read which may be a banknote is processed,
When the object to be read , which may be a bill, is processed again,
Country information of both the object to be read, i.e. they both read target
If the country information match if the object is a bill, the
The criterion for determining whether the object to be read is a bill is strict and the bill is hardly processed. Therefore, forgery of banknotes using the present color copying machine can be prevented with high accuracy.

Further, when an object to be read which may be a bill is to be copied by another copying machine connected by a network , the country information of the object to be read indicates that the possibility of a bill is Previously remembered as something
If it matches country information read object, in this banknote counterfeiting prevention device, object preparative said read are tightened criterion for determining whether a bill has been difficult to handle the bills. Therefore, forgery of a bill using another copying machine connected via a network can be surely prevented.

The configuration including the storage information transmitting / receiving unit 64 and the network can be applied to the configurations shown in the first and second embodiments.

[0119]

As described above , the bill counterfeiting prevention device of the image processing apparatus according to the present invention comprises an image reading means, and an image for performing processing for recognizing a bill on image data from the image reading means. processing means, on the basis of the output and the first criterion predetermined for the image processing means, the image reading hand
First bill determining means for making a preliminary determination as to whether or not there is a possibility that the object to be read at the step is a bill , and the first bill determining means
In, after it is determined that there is a possibility of the bill, based on the output and the pre-determined second criterion of said image processing means, second bill to perform this determination of whether the read object is a banknote and determining means, when setting the second criterion in the second bill determination section, pre than this determination
Within the period up to the specified time before the first paper
When determining that there is a possibility of the bill by bill determining means is being performed, the determination references control means for changing to the second criterion more likely to be determined as Ru bill der direction, the first paper
When it is determined by the bill determination means that there is no possibility of a bill,
And when the bill not equal is determined by the second bill determining means, while allowing the output of the image data of the object to be read this determination is made, the bill der in the second bill determining means
If it is determined that the reading object this determination is performed
And output control means for prohibiting the output of the image data .

[0120] Thus, the image processing apparatus, after the object to be read of potential bill is processed, when the object to be read of the possibility of the bill again is processed, said read object
The criterion for determining whether or not an object is a bill becomes strict, and it becomes difficult to process the bill. Therefore, there is an effect that forgery of a bill using the image processing apparatus can be prevented with high accuracy.

[0121] The bill counterfeiting prevention device of the image processing apparatus of the present invention, an image to be an image reading unit for image <br/> image data from the image reading means, the processing for recognizing the banknote processing means, set output and advance of the image processing unit
That based on the first criterion, reading by the image reading means
A first banknote determination unit that performs a preliminary determination as to whether or not the target object may be a banknote , and the first banknote determination unit determines whether the banknote is valid.
After it is determined that there is potential, on the basis of the output and the previously determined second criterion of the image processing unit, the reading pairs
Stores that elephant product and the second paper money judging means for performing the determination of whether the bill is <br/> determined that there is a possibility of the bill in the first bill determining means storage means, the output of the image processing means, based on the third criteria predetermined the held back surface of each bill image data, and previously, this
The third bill determining means and said second criterion in the second bill determining means for reading object is to determine whether or not there could be a rear surface of the object to be read stored in the storage means when setting the likelihood of the bill in the storage means
It was been determined that Tei has been stored, and a third
When in the bill determining means is determined that there is a possibility of the back, and the determination reference control means for changing the second criterion to the determined easily becomes a direction to be paper money, the first paper money determination
When it is determined that there is no possibility of a bill by the means, and when it is determined that the bill is not a bill by the second bill determination means,
While allowing the output of the image data of the object to be read this determination is made, when it is determine <br/> constant If it is a bill in the second bill determination section, reading this determination is performed Object image
Output control means for prohibiting data output.

Thus, after the image processing apparatus processes the object to be read which may be a bill, when the object to be read which may be on the back side of the bill is processed, the image is read .
The criterion for determining whether the object to be taken is a banknote becomes strict,
It becomes difficult to process bills. Therefore, there is an effect that forgery of a bill using the image processing apparatus can be prevented with high accuracy.

Further, the bill counterfeiting prevention device of the image processing apparatus according to the present invention can accommodate a predetermined amount of paper of a predetermined size for outputting an image, and includes a main paper feeding unit mounted on the image processing apparatus; And a manual paper feed unit capable of appropriately placing a smaller amount of the paper than the amount that can be accommodated in the main paper feed unit, so that the supply of paper from the main paper feed unit can be prohibited. in it are banknote counterfeiting prevention device of the image processing apparatus has a manual feed detecting means for detecting that the paper feed by the manual paper feed unit is performed, an image reading unit, the image data from the image reading means Te, an image processing means for processing for recognizing the banknote, on the basis of the output and the first criterion predetermined for the image processing means, the image reading hand
First bill determining means for making a preliminary determination as to whether or not there is a possibility that the object to be read at the step is a bill , and the first bill determining means
In, after it is determined that there is a possibility of the bill, based on the output and the pre-determined second criterion of said image processing means, second bill to perform this determination of whether the read object is a banknote and determining means, when setting the second criterion in the second bill determination section, pre than this determination
Within the period up to the specified time before the first paper
It is determined that there is a possibility of a bill by the bill determination means ,
And when the manual sheet feeding is performed in the manual feed detection means is detected, the determination references control means for changing the to the second criterion when the is bill determine <br/> constant is liable to become the direction The first bill determination means determines that there is no possibility of a bill.
And the second banknote determination unit determines that it is not a banknote
When it is, the image data of the object to be read this determination is performed
Read while allowing the output of the over data, which when it is determined that the <br/> banknote in the second bill determination section, the determination is performed
And output control means for prohibiting output of image data of the object .

[0124] Thus, the image processing apparatus, after the object to be read of potential bill is processed, the processing is further read object of potential bill, use of Omokyu paper portion at this time Is prohibited, and the paper is fed by the manual paper feed unit, the criterion for determining whether the object to be read is a bill becomes strict, and it becomes difficult to process the bill. Therefore, there is an effect that forgery of a bill using the image processing apparatus can be prevented with high accuracy.

[0125] The bill counterfeiting prevention device of the image processing apparatus of the present invention, an image to be an image reading unit for image <br/> image data from the image reading means, the processing for recognizing the banknote processing means, set output and advance of the image processing unit
That based on the first criterion, reading by the image reading means
A first banknote determination unit that performs a preliminary determination as to whether or not the target object may be a banknote , and the first banknote determination unit determines whether the banknote is valid.
After it is determined that there is potential, on the basis of the output and the previously determined second criterion of the image processing unit, the reading pairs
A second bill determining means elephant product performs the determination of whether the bill, likely there is a bill in the first bill determining means
If the object to be read determined to be a banknote is
And nationality determination means for determining from the image data of the nationality of the object to be read of the bill, the reading is determined by the nationality determination means
And nationality storage means for storing the nationality of the object, the first
This reading that in the determination means has been determined that there is a possibility of the bill
The third banknote determining means for determining whether or not the nationality of the object to be picked up matches the nationality stored in the nationality storage means, and the second determination criterion by the second banknote determining means are set. in, when the determination that there nationality coincides with the third bill determining means is being performed, the determination references control means for changing the second criterion to the determined easily becomes a direction to be paper money, the first 1 The possibility of a bill is determined by the bill determination means
When it is determined that it is not, and when the bill not equal is determined by the second paper money judging means, reading this determination is performed
While the output of the image data of the object is permitted, the second paper
When the banknote determination unit determines that the banknote is a banknote , an output control unit that prohibits the output of the image data of the reading target for which the determination is performed is provided.

Thus, when the image processing apparatus processes the read object having the possibility of a bill, and then again processes the read object having the possibility of a bill, both of these read operations are performed.
When the nationalities of the objects match, the criterion for determining whether the object to be read is a bill becomes strict, and it becomes difficult to process the bill. Therefore, there is an effect that forgery of a bill using the image processing apparatus can be prevented with high accuracy.

Further, the bill counterfeit prevention device of the image processing apparatus of the present invention has a backup power supply, and connects the backup power supply to the storage means when the normal power supply to the storage means is cut off. This configuration is provided with a storage backup unit.

As a result, even if the normal power supply to the storage means is cut off due to a power failure or the like, the storage contents of the storage means are retained, and an effect that high reliability can be provided.

Further, the bill counterfeit prevention device of the image processing apparatus of the present invention has a structure provided with a storage control means for erasing the contents stored in the storage means after a lapse of a predetermined time.

As a result, the contents stored in the storage means are erased after a certain period of time, so that the period in which the criterion for determining whether the object to be read is a bill is strict is limited. Therefore, it is possible to prevent an erroneous determination that an object to be read that is not a bill is a bill.

The bill counterfeit prevention device of the image processing apparatus according to the present invention includes a storage information transmitting means for transmitting the contents of the storage means to a bill counterfeit prevention device of another image processing device via a network. It is.

As a result, the contents stored in the storage means of the banknote forgery prevention device can be used by the other banknote forgery prevention device in the determination means, and the forgery of the banknote using the other image processing device connected via the network can be performed. Is also reliably prevented.

Further, the bill counterfeit prevention device of the image processing apparatus according to the present invention is different from the bill counterfeit prevention device of the other image processing devices in that:
The configuration is provided with storage information receiving means for retrieving the contents stored in the storage means via a network and taking in the corresponding storage means.

As a result, the stored contents of the other banknote counterfeit prevention apparatus can be used in the banknote counterfeit prevention apparatus, and banknote counterfeiting using an image processing apparatus connected via a network can be reliably prevented. This has the effect.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a bill counterfeiting prevention device according to one embodiment of the present invention.

FIG. 2 is a schematic diagram showing an overall configuration of a color copying machine provided with the above-described bill counterfeit prevention device.

FIG. 3 is a flowchart showing the operation of the above-mentioned bill counterfeit prevention device.

FIG. 4 is a flowchart illustrating an operation of the image processing unit illustrated in FIG. 1;

FIG. 5 is an explanatory diagram of a bill recognition operation in the image processing unit.

FIG. 6 is an explanatory diagram of a bill recognition operation in the image processing unit.

FIG. 7 is an explanatory diagram of a bill recognition operation in the image processing unit.

FIG. 8 is an explanatory diagram for setting a judgment value used in the bill judgment unit shown in FIG. 1;

FIG. 9 is a flowchart illustrating an operation of the storage control unit illustrated in FIG. 1;

FIG. 10 is a flowchart showing the operation of the storage backup unit shown in FIG.

FIG. 11 is a block diagram illustrating a configuration of a bill counterfeit prevention device according to another embodiment of the present invention.

FIG. 12 is a flowchart showing the operation of the bill counterfeit prevention device.

FIG. 13 is a block diagram showing a configuration of a banknote forgery prevention device according to still another embodiment of the present invention.

FIG. 14 is a flowchart showing the operation of the bill counterfeit prevention device.

FIG. 15 is a flowchart showing a transmission / reception operation between the storage information transmission / reception unit and the network using the network shown in FIG.

FIG. 16 is a block diagram showing a configuration of a bill counterfeiting prevention device according to still another embodiment of the present invention.

FIG. 17 is a flowchart showing the operation of the bill forgery prevention device.

FIG. 18 is a flowchart showing a transmission / reception operation between the storage information transmission / reception unit shown in FIG. 16 and another device by the network.

[Explanation of symbols]

Reference Signs List 6 CCD sensor (image reading unit) 7 Laser driver unit 20 Paper cassette (main paper feeding unit) 22 Scanner (image reading unit) 23 Manual feed unit 41 Image reading unit (image reading unit) 42 Image processing unit (image processing) Means) 43 Banknote determination unit (first banknote determination unit, second banknote determination unit) 44 Output control unit (output control unit) 45 Storage unit (storage unit) 46 Storage control unit (storage control unit) 47 Storage backup unit (storage) Backup means) 48 Judgment value control unit (judgment control unit) 51 Banknote judgment unit (first banknote judgment unit, second banknote judgment unit, third banknote judgment unit) 52 Storage unit (storage unit) 53 Judgment value control unit ( Judgment standard control means) 62 Banknote judgment unit (first banknote judgment unit, second banknote judgment unit) 63 Banknote judgment storage unit (storage unit, banknote judgment storage unit) 64 storage information Transmission / reception unit (storage information transmission unit, storage information reception unit) 65 Manual feed mode detection unit (manual feed detection unit) 66 Banknote judgment value control unit (judgment control unit) 71 Country-specific information storage unit (nationality storage unit) 72 countries Different information determination unit (nationality determination unit) 73 Image processing unit (image processing unit) 74 Banknote determination unit (first banknote determination unit, second banknote determination unit, third banknote determination unit)

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04N 1/40-1/409 H04N 1 / 46,1 / 60 G06T 7/00

Claims (8)

(57) [Claims] 1. A image reading unit, the image data from the image reading means, image processing means for performing processing for recognizing the banknote, the output and the first criterion predetermined for said image processing means based on the first bill determining means for reading the object in the image reading means performs whether the preliminary determination is <br/> possibility of bills, in the first bill determination section, the possibility of banknotes Judged to be
After being, on the basis of the output and the previously determined second criterion of the image processing unit, or the read object is an banknote
Setting a second bill determining means for performing whether or not the determination, the second criterion in the second bill determining means
In this case, for a fixed period of time
Within a period of up earlier, when determining that there is <br/> possibility of the bill in the first bill determining means is being carried out, is easy to be determined to be a bill the second criterion The first banknote determination unit determines that there is no possibility of a banknote;
When, and when the bill not equal determine <br/> constant in the second bill determination section, the image of the object to be read which this determination is made
While allowing the output of data , the second banknote determination means
When it is determined that the bill Te, this determination is performed
A counterfeiting prevention device for an image processing apparatus, comprising: output control means for prohibiting output of image data of an object to be read . 2. A picture reading means, the image data from the image reading means, image processing means for performing processing for recognizing the banknote, the output and the first criterion predetermined for said image processing means based on the first bill determining means for reading the object in the image reading means performs whether the preliminary determination is <br/> possibility of bills, in the first bill determination section, the possibility of banknotes Judged to be
After being, on the basis of the output and the previously determined second criterion of the image processing unit, or the read object is an banknote
A second bill determining means for performing whether or not the decision, and storage means for storing the determination of <br/> was that there is a possibility of the bill in the first bill determination section, the image processing output means, based on the third criteria predetermined the held image data of the back surface of each bill, and pre-read the read object of this is stored in the storage means
Setting a third bill determining means for determining whether there is likely to be the rear surface of the object taken, the second criterion in the second bill determining means
It is determined that there is a possibility of a banknote in the storage means
Is and it is stored was Tei, and when it is determined that there is a possibility of the back surface in the third bill determination section, the second
A criterion control means for changing the criterion to a direction in which the bill is easily determined to be a bill; and a first bill determining means which determines that there is no possibility of a bill.
When, and when the bill not equal determine <br/> constant in the second bill determination section, the image of the object to be read which this determination is made
While allowing the output of data , the second banknote determination means
When it is determined that the bill Te, this determination is performed
A counterfeiting prevention device for an image processing device, comprising: output control means for prohibiting output of image data of a reading object . 3. A main paper feed unit to be mounted on an image processing apparatus and a main paper feed unit to be mounted on the image processing apparatus, wherein a predetermined amount of paper of a predetermined size for outputting an image can be stored. In a bill counterfeiting prevention device of an image processing apparatus, which has a manual paper feed unit capable of appropriately placing a small amount of the paper manually, and in which supply of paper from the main paper supply unit can be prohibited. image processing performed with manual sheet feed detecting means for detecting that the paper feed by the manual paper feed unit is performed, an image reading unit, the image data from the image reading means, the processing for recognizing the banknote means and, on the basis of the output and the first criterion predetermined for the image processing means, first the reading object by the image reading means performs whether the preliminary determination is <br/> potential banknotes The bill is determined by the bill determining means and the first bill determining means. Determined to be capable
After being, on the basis of the output and the previously determined second criterion of the image processing unit, or the read object is an banknote
Setting a second bill determining means for performing whether or not the determination, the second criterion in the second bill determining means
In this case, for a fixed period of time
Within a period of up earlier, the determination that there is <br/> possibility of the bill in the first bill determination section is performed, and the manual paper feed is performed is detected by the manual paper feed detection means when in, is determined and criteria controlling means for changing the second criterion to the determined easily becomes a direction to be paper money, and there is no possibility of the bill in the first bill determining means
When, and when the bill not equal determine <br/> constant in the second bill determination section, the image of the object to be read which this determination is made
While allowing the output of data , the second banknote determination means
When it is determined that the bill Te, this determination is performed
A counterfeiting prevention device for an image processing apparatus, comprising: output control means for prohibiting output of image data of an object to be read . 4. An image reading means, an image processing means for performing processing for recognizing a bill on the image data from said image reading means, and an output of said image processing means and a predetermined first determination criterion. based on the first bill determining means for reading the object in the image reading means performs whether the preliminary determination is <br/> possibility of bills, in the first bill determination section, the possibility of banknotes Judged to be
After being, on the basis of the output and the previously determined second criterion of the image processing unit, or the read object is an banknote
A second banknote determination unit that performs the main determination of whether or not the read target object determined to be a banknote by the first banknote determination unit is a banknote, The paper
And nationality determination means for determining from the image data of the nationality of the read object bill, and nationality storage means for storing the nationality of the determined read object by the national judging means, the bill in the first determination means It is determined to be the possibility of
The third banknote judging means for judging whether or not the nationality of the object to be read this time coincides with the nationality stored in the above-mentioned nationality memory means, Set
In, when the determination that there nationality coincides with the third bill determining means is being carried out, by the bill the second criterion
A criterion control means for changing to a direction in which it is easy to determine that there is a banknote;
When, and when the bill not equal determine <br/> constant in the second bill determination section, the image of the object to be read which this determination is made
While allowing the output of data , the second banknote determination means
When it is determined that the bill Te, this determination is performed
A counterfeiting prevention device for an image processing device, comprising: output control means for prohibiting output of image data of a reading object . 5. A storage device comprising a backup power supply, and a storage backup means for connecting the backup power supply to the storage means when normal power supply to the storage means is cut off. A bill counterfeiting prevention device for an image processing apparatus according to claim 2. 6. banknote counterfeiting prevention device of the image processing apparatus according to claim 2, 4 or 5, wherein a and a storage control means for erasing the contents stored in the storage means after a predetermined time has elapsed . 7. A claim, characterized in that it comprises a memory information transmitting means for transmitting the contents of said memory means via the network to bill anti-counterfeiting device of the other image processing apparatus 2, 4, 5 or 7. The bill counterfeit prevention device of the image processing device according to 6 . 8. A storage information receiving means for retrieving the contents stored in the storage means from a bill counterfeiting prevention apparatus of another image processing apparatus via a network and taking the contents into a corresponding storage means. The method according to claim 1 , wherein:
A bill counterfeiting prevention device for the image processing device according to any one of the above.