CN103186940A - Number identification device and number identification method - Google Patents
Number identification device and number identification method Download PDFInfo
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- CN103186940A CN103186940A CN2011104470604A CN201110447060A CN103186940A CN 103186940 A CN103186940 A CN 103186940A CN 2011104470604 A CN2011104470604 A CN 2011104470604A CN 201110447060 A CN201110447060 A CN 201110447060A CN 103186940 A CN103186940 A CN 103186940A
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Abstract
The invention relates to a character identification device which can conduct character identification in digits with category numbers of a plurality of characters. The number identification device comprises an identification part, an image generation part, a character image cut-out part, a storage part and a character identification part, wherein the identification part identifies a paper category; the image generation part generates a paper image of shot paper; the character image cut-out part cuts the characters of a number out from the paper image as character images; the storage part stores character attribute information associated with attributes of the characters of the number and the paper category, and templates for the character identification of the characters with the character attributes; and the character identification part identifies the character attributes of the character images based on identification results of the character images and the character attribute information, conducts the character identification with the corresponding template under the condition that one character attribute is associated with the character images so as to determine a character identification result, conducts the character identification for multiple times with the templates corresponding to the character attributes under the condition that multiple character attributes are associated with the character images, calculates evaluation values for evaluating the character identification results, and determines the character identification results of the character images based on the evaluation values.
Description
Technical field
The present invention relates to be used to the NID number identifier that is identified in the number that prints on the paper and number identification method.
Background technology
In the past, used the NID number identifier that is used for being identified in the number that prints on the paper.By numeral, English alphabet and mark (character) or made up their character string and form number.For example, in the paper of stock, security, bond, exchange ticket, convertible note, check, bank note etc., use number.
For example, in patent documentation 1, a kind of NID number identifier that obtains the image of bank note and retrieve the position of number at this image is disclosed.In this device, the character that forms number can be cut out as parts of images by per 1.Be identified in character or the numeral that comprises in the parts of images that cuts out by the character recognition processing.
For example by relatively by per 1 template that cuts out parts of images He each character of number, handle thereby carry out character recognition.The alphabet that might be included in the number is prepared in advance template.Based on the correlativity of the character that in parts of images, comprises and each character of in template, comprising, identification character.
In number, the kind that the character that uses in everybody arranged is as every character attibute and fixing number.For example, in the number of a certain bank note, the 1st and the 2nd 's character attibute is fixed to English alphabet (below, be recited as " letter "), and the 3rd later character attibute is fixed as numeral.In such number, in the 1st and the 2nd 's character recognition, use the template of letter, in the 3rd later character recognition, use the template of numeral.
[patent documentation 1] Japanese kokai publication hei 10-154256
But according to above-mentioned conventional art, if every character attibute of number is fixing, then the accuracy of identification of character recognition reduces.
For example, under the situation of the number deficiency of number, exist in the situation about fixedly being disengaged of the kind of the character that uses in the number in the increase of distribution number.Specifically, exceed at the emission of banknotes number under the situation of number of the combination that can be realized by fixing character attibute, increase the number of number by being increased in the character attibute of using in the number, thereby issue new bank note.For example, fixedly being disengaged of certain character attibute only utilized in the past and used numeral in the position of letter or only utilize in the past in the position of numeral and use letter.
In the position that fixedly is disengaged of character attibute, used both character recognition of template of numeral and letter.But, carry out under the situation of character recognition in the template of using both, owing between numeral and letter, exist shape similar, increase so produce the possibility of wrong identification.Specifically, for example, exist in the situation that produces wrong identification between " O " of digital " 0 (zero) " and letter, " 1 " of numeral and " I " of letter etc.Its result, the accuracy of identification of the character recognition of number reduces.
Summary of the invention
The present invention finishes for the problem points that solves above-mentioned conventional art, its purpose is, a kind of NID number identifier and number identification method are provided, even under the situation about fixedly being disengaged of its character attibute of use in everybody of number, also can check numbers and carry out character recognition accurately.
In order to solve above-mentioned problem and to achieve the goal, the present invention is a kind of NID number identifier that the number that prints in order to identify paper is carried out character recognition, it is characterized in that, comprising: the identification part, identify the kind of described paper; Image production part generates the paper image of having taken described paper; Character picture cuts out portion, from described paper image, cuts out the subregion that comprises the every character that forms described number as character picture; Storage part, the character attibute information that storage is associated everybody character attibute of the kind of described paper and described number, and storage and each character attibute corresponding characters are identified the template of usefulness; And character recognition portion, based on the kind of the paper of in described identification part, identifying and with reference to described storage part, be under one the situation, to utilize a corresponding described template to carry out character recognition, thereby determine character identification result in the described character attibute that is associated with described character picture; Under the situation of a plurality of described character attibutes that described character picture has been associated, the utilization described template corresponding with each character attibute carried out character recognition repeatedly, and calculate the evaluation of estimate that is used for estimating each character identification result, determine the character identification result of described character picture based on this evaluation of estimate.
In addition, the present invention is in foregoing invention, it is characterized in that, in the part position of described number, exist regular between the character attibute, and under one of them the situation in the 1st attribute and the 2nd attribute or described the 2nd attribute and described the 1st attribute of being combined into of the 1st character attibute and the 2nd 's character attibute, the information that described storage part can be identified described regularity is included in the described character attibute information stores, described character recognition portion is identifying under the situation of described regularity, utilize 1st template corresponding with described the 1st attribute to carry out character recognition to described the 1st, utilize 2nd template corresponding with described the 2nd attribute to carry out character recognition to described the 2nd, and calculate the summation of described the 1st and the 2nd 's evaluation of estimate as the 1st evaluation of estimate, and, utilize described the 2nd template that described the 1st described character picture is carried out character recognition, utilize described the 1st template that described the 2nd described character picture is carried out character recognition, and calculate the summation of described the 1st and the 2nd 's evaluation of estimate as the 2nd evaluation of estimate, based on described the 1st evaluation of estimate and described the 2nd evaluation of estimate, determine described the 1st and described the 2nd character identification result.
In addition, the present invention is in foregoing invention, it is characterized in that, described storage part will be associated and store as specific character by the character of easy wrong identification between each character attibute under the situation of having carried out character recognition, described character recognition portion is under the situation of described specific character at the character identification result of the character picture of a plurality of character attibutes that have been associated, and character identification result is replaced with the error character of regulation.
In addition, the present invention is in foregoing invention, it is characterized in that, described character recognition portion is that the described character picture of a plurality of character attibutes that has been associated is described specific character in character recognition, and character recognition for other character picture of the character attibute that only has been associated for the character identical with described specific character or easily under the situation of wrong identification for the specific character of this character, based on the correlativity of described other character pictures of the described character picture of the described a plurality of character attibutes that have been associated and the character attibute that only has been associated, the character identification result of the described character picture of the described a plurality of character attibutes of having determined to be associated.
In addition, the present invention is characterized in that in foregoing invention described paper is bank note.
In addition, the present invention is a kind of number identification method that the number that prints at this paper in order to identify paper is carried out character recognition, it is characterized in that, comprising: identification step, identify the kind of described paper by the identification part; Image generates step, takes described paper and generates the paper image; Character picture cuts out step, from described paper image, cuts out the subregion that comprises the every character that forms described number as character picture; Character attibute is given step, with reference to the kind of the described paper in described identification step, identified and the storage part of having preserved the character attibute information that everybody character attibute with the kind of described paper and described number is associated, give for the character attibute that cuts out each character picture that cuts out in the step at described character picture; And character recognition step, be under one the situation, to utilize the template of the correspondence of in described storage part, preserving to carry out character recognition, thereby determine character identification result in the described character attibute that described character picture is given; Described character picture is being given under the situation of a plurality of described character attibutes that are endowed, the template corresponding with each character attibute that utilization is preserved in described storage part carried out character recognition repeatedly, and calculate the evaluation of estimate that is used for estimating each character identification result, determine the character identification result of described character picture based on this evaluation of estimate.
In addition, the present invention is in foregoing invention, it is characterized in that, described character attibute is given step and is comprised: regular identification step, one of them the situation in the 1st attribute and the 2nd attribute or described the 2nd attribute and described the 1st attribute of being combined into of the 1st character attibute of identification and the 2nd 's character attibute from the described character attibute information of described storage part, preserving, described character recognition step comprises the steps: to identify under the situation that described regularity is arranged in described number in described regular identification step, utilize 1st template corresponding with described the 1st attribute to carry out character recognition to described the 1st, utilize 2nd template corresponding with described the 2nd attribute to carry out character recognition to described the 2nd, and calculate the summation of described the 1st and the 2nd 's evaluation of estimate as the 1st evaluation of estimate, and, utilize described the 2nd template that described the 1st described character picture is carried out character recognition, utilize described the 1st template that described the 2nd described character picture is carried out character recognition, and calculate the summation of described the 1st and the 2nd 's evaluation of estimate as the 2nd evaluation of estimate, more described the 1st evaluation of estimate and described the 2nd evaluation of estimate, thus determine described the 1st and described the 2nd character identification result.
According to the present invention, owing to using corresponding template to carry out character recognition based on every character attibute of number, so even in a position, use under the situation of a plurality of character attibutes, also can carry out character recognition accurately.
In addition, according to the present invention, because under the situation of using the regularity that has relevant character attibute between a plurality of positions of a plurality of character attibutes, can use the template corresponding with each character attibute to carry out repeatedly character recognition, and use the regularity of relevant character attibute and estimate a plurality of character identification results of acquisition, so can carry out character recognition accurately.
In addition, according to the present invention, owing in using the position of a plurality of character attibutes, use the template of each attribute to carry out under the situation of character recognition, to between each attribute, the character setting of easy wrong identification be specific character, and be identified as under the situation of specific character, can replace with error character, so can avoid using number and other being handled the situation of the influence that produces wrong identification with the state of wrong identification.
In addition, according to the present invention, even be under the situation of specific character in character recognition, under other the situation of specific character that in identical number image, comprises identical specific character or set for the character of this specific character as easy wrong identification, also still can carry out character recognition by the similarity of estimating these character pictures, so can improve the discrimination of character recognition.
Description of drawings
Fig. 1 is the figure of structure example of the NID number identifier of explanation the 1st embodiment.
Fig. 2 is the schematic cross-section of inner structure summary of the bank note treatment device of explanation the 1st embodiment.
Fig. 3 is the block scheme of structure summary of the NID number identifier of expression the 1st embodiment.
Fig. 4 (a)～(c) is the figure that the image that uses in the NID number identifier of the 1st embodiment is described.
Fig. 5 (a)～(b) is the figure of example of the new digit that fixedly is disengaged of the explanation old number of having fixed character attibute of the 1st embodiment and character attibute.
Fig. 6 is the figure of the identification code of using in the character recognition of old number of explanation the 1st embodiment.
Fig. 7 is the figure of example of the identification code of using in the character recognition of old number and new digit of explanation the 2nd embodiment.
Fig. 8 is the figure of other examples of the identification code of using in the character recognition of old number and new digit of explanation the 2nd embodiment.
Fig. 9 (a)～(b) is the figure of example of character identification result of the number of explanation the 2nd embodiment.
Figure 10 is the figure of the setting example of the explanation specific character of the 2nd embodiment and error character.
Figure 11 (a)～(c) is the figure of demonstration example of the specific character in the character identification result of explanation the 2nd embodiment.
Figure 12 is the figure of the example that shows of the picture of the modification error character of explanation the 2nd embodiment.
Figure 13 is the process flow diagram of first half for the treatment of step of the character recognition of explanation the 2nd embodiment.
Figure 14 is the process flow diagram of latter half for the treatment of step of the character recognition of explanation the 2nd embodiment.
Figure 15 is the process flow diagram for the treatment of step of the specific character of explanation the 2nd embodiment.
Figure 16 (a)～(d) is the figure of contents processing of the specific character of explanation the 2nd embodiment.
Figure 17 (a)～(c) is the figure of other examples of contents processing of the specific character of explanation the 2nd embodiment.
Label declaration
1 NID number identifier
2 bank note treatment devices
3 bank note office terminals
10 reservoirs (hopper)
11 advance roller (kicker roller)
12 produce roller
13 reverse rolls
15 identification count section
15a optical line sensor
The 15b detecting sensor
The 15c Magnetic Sensor
16 rejection portions
17 pilers (stacker)
18 branching portions
19 impellers
20 shutters
21 bank note have or not sensor
22 transmission paths
31 number images cut out portion
32 character pictures cut out portion
33 character recognition portions
34 storage parts
The 34a number information
34b character recognition template
100 banknote image
101 numbers
102 number images
103,106,107 character pictures
104 pictures
Embodiment
Below, the NID number identifier that present invention will be described in detail with reference to the accompanying and the preferred embodiment of number identification method.NID number identifier is the device that carries out the character recognition of the identifier that prints at this paper for the paper of determining check or bank note etc.Become the figure place of kind, the identifier of the paper of handling object, the kind (character attibute) of the character that in everybody of identifier, uses etc. and be not particularly limited, but following situation with the number of identifying bank note is that example describes.
In addition, below, about each character attibute, with 0～9 as " numeral ", with the A～Z of English alphabet as " letter ", will comprise that mark, numeral and alphabetical situation are recited as " char ".In addition, the situation that the number on the bank note is formed by 10 the character string that comprises numeral and letter is described.
[embodiment 1]
Fig. 1 is the synoptic diagram of the structure example of expression NID number identifier 1.NID number identifier 1 is made of with the bank note office terminal 3 that is connected to bank note treatment device 2 bank note treatment device 2 of the image of obtaining and generate bank note.At this moment, comprise that the image of the number that is generated by bank note treatment device 2 sends to bank note office terminal 3, undertaken handling from the character recognition of image recognition number by bank note office terminal 3.
In addition, in the present embodiment, the mode of the character recognition processing of number is carried out in explanation by bank note office terminal 3, but present embodiment is not limited thereto, also can be that bank note treatment device 2 moves as NID number identifier 1 separately, carry out being generated to from banknote image the mode of whole processing of number identification.At this moment, bank note office terminal 3 for example is received in the bank note treatment device 2 number of the bank note of identification, uses for the processing of the identification that used number etc.The processing of the identification that uses the number that is undertaken by bank note office terminal 3 etc. for example in disclosing No. 2010/016144 communique, the world is disclosed.
Fig. 2 is the schematic cross-section of the inner structure summary of expression bank note treatment device 2.Bank note treatment device 2 comprises: reservoir 10, place bank note; Advance roller 11 and produce roller 12, produce the interior transmission path 22 of auto levelizer for the lowermost bank note of a plurality of bank note that will be placed on reservoir 10; And reverse roll 13, be used for and will turn back to reservoir 10 sides by producing the bank note that roller 12 leads out, so that in order not produce the two pieces of paper coin simultaneously.In addition, bank note treatment device 2 comprises: a plurality of by sensor 14, for detection of passing through of the bank note that in transmission path 22, transmits; Identification count section 15 is for the cash kind of identifying bank note or the true and false etc. and generation banknote image; Rejection portion 16, accumulation is judged to be the bank note of rejecting bank note by identification count section 15; Piler 17, the processing object bank note beyond the bank note is rejected in accumulation; And branching portion 18, the transmission destination of bank note is divided into rejection portion 16 or piler 17.In addition, bank note treatment device 2 comprises: impeller 19, for the accumulation position that bank note is accumulated in the piler 17; Shutter 20 is used for covering piler 17; And bank note has or not sensor 21, for detection of having or not of the bank note of accumulation in piler 17.
Transmission path 22 is made of the transport tape (endless belt) that tensioning is arranged on the delivery roll, the transport tape movement that circulates by the rotation of delivery roll, thus bank note is to be clamped in the state transfer between the transport tape.In addition, transmission path 22 comprises a plurality of delivery rolls and a plurality of transport tape.Transmission path 22 is driven by the electric motor-controlling components of the rotation of not shown transmission motor and control transmission motor.In addition, produce bank note propelling roller 11, produce roller 12 and reverse roll 13 by the drive system different with transmission path 22 and driven.
The functional structure summary of bank note treatment device 2 and bank note office terminal 3 then, is described.Fig. 3 is the block scheme of the functional structure summary of expression bank note treatment device 2 and bank note office terminal 3.In addition, in figure, only represent to be used for function and the required structural element of action of explanation present embodiment.
In bank note treatment device 2, take bank note and generate banknote image by the optical line sensor 15a that identifies count section 15.For example, shown in Fig. 4 (a), generate the banknote image 100 that comprises number 101.The recognition result of the banknote image 100 that generates and the cash kind that identifies this bank note etc. sends to bank note office terminal 3 from bank note treatment device 2.
Bank note office terminal 3 comprises that the number image cuts out portion 31, character picture cuts out portion 32, character recognition portion 33 and is used for storage by the storage part 34 of various piece 31～33 employed various data.In storage part 34, preserve number information 34a.In number information 34a, comprise the positional information in the printing position of representing the number 101 on the banknote image 100 and the character attibute information of everybody character attibute of expression number.In addition, in storage part 34, for form number each character recognition and preserve and everybody character attibute corresponding characters identification template 34b.Character recognition comprises digital with template and letter template with template 34b.Here, template both can be image, also can be the characteristic quantity of gradient vector for example.
The number image cuts out portion 31 and has following function: from the banknote image 100 that bank note treatment device 2 receives, cut out the parts of images that comprises number 101 as the number image.The number image cuts out portion 31 based on the cash kind of information of the banknote image 100 that receives from bank note treatment device 2, with reference to the positional information of the number 101 that comprises in the number information 34a of storage part 34, carries out cutting out of number image.For example, from the banknote image 100 shown in Fig. 4 (a), shown in figure (b), cut out number image 102.The number image 102 that cuts out is kept in the storage part 34.
Character picture cuts out portion 32 and has following function: the character picture that cuts out everybody from cut out the number image 102 that portion 31 cuts out by the number image.For example, from the number image 102 shown in Fig. 4 (b), cut out every character picture 103 as shown in the figure (c).The character picture 103 that cuts out is kept in the storage part 34.
In addition and since handle or generate about the identification of the bank note of bank note treatment device 2 cutting out of the number image 102 of processing, bank note office terminal 3 of banknote image 100 and character picture 103 handle identical with conventional art, so omit detailed explanation.For example, can utilize at the flat 10-154256 communique of Japanese Patent Application Publication and international disclose disclosed technology in No. 2009/040922 communique.
Below, situation about being changed with everybody character attibute of the number that forms bank note is example, and the details of the character recognition processing of being undertaken by character recognition portion 33 be described.
Fig. 5 is the figure of an example of the explanation number of paper money that becomes the processing object that the character recognition of present embodiment handles.Printing as Fig. 5 (a) in this bank note and two kinds of numbers (b).
In the past, in this bank note, shown in Fig. 5 (a), the 10 item sign indicating numbers (old number) that formed by 2 initial letters and 8 bit digital followed had afterwards been printed.Afterwards, along with the emission of banknotes number increases and the number deficiency, thereby be increased in the number of the number that can print in the bank note, so use the new number (new digit) shown in Fig. 5 (b).In new digit, the 2nd character attibute changes to numeral, and the 3rd character attibute changes to letter.That is, in this bank note, the combined hybrid of the 2nd of number and the 3rd 's character attibute the new digit of order of the old number of order of letter and number and numeral and letter.
Because the 1st and the 2nd 's character attibute is fixed as letter in the old number shown in Fig. 5 (a), so only used the character recognition of alphabetical template in these.In addition, because the 3rd to the 10th character attibute is fixed as numeral, so only used the character recognition of digital template.
In storage part 34, as shown in Figure 6, distribute identification code accordingly with everybody character attibute of number, and store as number information 34a.Identification code is the sign indicating number that is illustrated in the template of using in the character recognition.In Fig. 6, be the position distribution identification code " 1 " of letter to character attibute, be that identification code " 0 (zero) " is distributed in digital position to character attibute.When character recognition portion 33 handles in the character recognition of carrying out number, based on the cash kind of information of the bank note with this number and cross reference number information 34a.Then and since to this number assignment identification code as shown in Figure 6, carry out character recognition so in the position of identification code " 1 ", only use the template of letter, in the position of identification code " 0 (zero) ", only use digital template and carry out character recognition.That is, in the position of letter, only use the template of letter, in the position of numeral, only use the template of numeral.
With respect to this, as if the new digit of bringing into use shown in Fig. 5 (b), then corresponding to this, the information of the number information 34a that preserves in storage part 34 is modified.
Specifically, the expression character attibute newly is set is one of them the identification code " 2 " in letter or the numeral, and as shown in Figure 7, is " 2 " with the 2nd and the 3rd 's identification code modification.Character recognition portion 33 in the 2nd and the 3rd of identification code " 2 ", use the template of numeral and letter template both and carry out character recognition.That is, in old number, only having used one of them the 2nd and the 3rd of template in letter or the numeral, used the character recognition of two templates of letter and number.Thus, in the bank note that has adopted new digit, no matter the number that prints at bank note is old number or new digit, can both carry out character recognition exactly.
Thus, character attibute fixedly be disengaged and the position of desirable a plurality of character attibutes in, use the template corresponding with each character attibute to carry out character recognition, thereby can carry out both character recognition of old number and new digit.At this moment, owing in the character attibute former state is fixed as one of them position in letter or the numeral, only use corresponding template to carry out character recognition, so the processing time that can avoid character recognition elongated situation significantly.
[embodiment 2]
In embodiment 1, represented the position that fixedly is disengaged to character attibute, use alphabetical template and digital template both carry out the mode of character recognition.In the present embodiment, also use both templates in the same manner with embodiment 1, but be with the difference of embodiment 1, considered the character recognition of regularity of everybody character attibute.
In addition, because with reference to the function of the bank note treatment device 2 of Fig. 1～Fig. 6 explanation and bank note office terminal 3 and structure, to cut out processing, everybody character attibute of number of character picture 103 from banknote image 100 identical with embodiment 1, so omit explanation, below, the difference of detailed description present embodiment and embodiment 1.
In the present embodiment, removed character attibute to becoming new digit as shown in Figure 5 fixing the 2nd and the 3rd, also distribution identification code and newly-installed identification code as shown in Figure 6.Wherein, in the present embodiment, as shown in Figure 5, consider that in old number the 2nd becomes letter, the 3rd and become numeral, the 2nd becomes numeral, the 3rd situation that becomes letter in new digit, appends identification code.That is, utilize the 2nd and the 3rd character attibute the regularity that being combined into letter and number or numeral and letter and carry out character recognition.
Specifically, as new identification code, append for expression become basic character attibute for numeral but also exist letter situation identification code " 2 " and be used for that expression becomes basic character attibute for letter but the identification code " 3 " that also has the situation of numeral.Here, become basic character attibute and refer to when fixedly being disengaged of character attibute, issued the character attibute in the old number of a large amount of bank note.
And, the identification code as shown in Figure 6 corresponding to old number is only revised as shown in Figure 8.To being letter but being the 2nd of numeral, divide the identification code " 3 " be used in the basic character attibute of expression for letter but also have the situation of numeral in new digit in old number.In addition, to being numeral but being the 3rd of letter, divide the identification code " 2 " be used in the basic character attibute of expression for numeral but also have the situation of letter in old number in new digit.Thus, using newly-installed identification code, as the combination of the 2nd and the 3rd 's character attibute, thereby can be to set numeral and the alphabetical situation of becoming substantially with the letter and number.
As shown in Figure 8, by the 2nd is distributed identification code " 3 ", distributes identification code " 2 " to the 3rd, thereby also there is the possibility of the character attibute of getting other in 33 identifications of character recognition portion except becoming basic character attibute.Then, the line character that is combined into of each character attibute is identified.That is, the 1st time character recognition is carried out in the combination that becomes basic letter and number, again the 2nd time character recognition is carried out in the combination of numeral and letter.
At first, in the 1st time character recognition, based on the combination that becomes basic character attibute, in the 2nd, use alphabetical template to carry out character recognition, and in the 3rd, use digital template to carry out character recognition.Then, in ensuing the 2nd time character recognition, as other combination, in the 2nd, use digital template to carry out character recognition, and in the 3rd, use alphabetical template to carry out character recognition.
Then, the result of the result of the character recognition that 33 comparisons of character recognition portion are the 1st time and the 2nd time character recognition, which result judgement will be adopted, be that number is old number or new digit.For example with Euclidean distance or correlation as evaluation of estimate, the correlativity when having compared character picture 103 and template is estimated, thereby compares judgement.
Specifically, calculate as the 1st evaluation of estimate in the 1st time character recognition is handled the 2nd and the 3rd everybody the character recognition evaluation of estimate with.Similarly, calculate as the 2nd evaluation of estimate in the 2nd time character recognition is handled the 2nd and the 3rd everybody the character recognition evaluation of estimate with.Then, two evaluations of estimate that relatively calculate, namely adopt as character identification result with the high value of the correlativity of template the value that evaluation of estimate is high.Flow process about these processing is narrated in the back.
In the character recognition of embodiment 1, to have both wrong identification with the 2nd and the 3rd be letter or be digital possibility with both wrong identification.But in the present embodiment, character recognition is carried out in the combination of the character attibute by considering the 2nd and the 3rd, thereby can avoid such situation.Owing under number is any situation in old number and the new digit, can both carry out character recognition exactly, so the accuracy of identification of character recognition improves.
In addition, in character recognition is handled, exist in the situation that produces wrong identification between the similar character of shape, but in NID number identifier 1, can also tackle such wrong identification.
For example, comprise in the numeral of in number, using 0 (zero), 1 and 8 etc. one of them, in letter, comprise under one of them the situation of O (letter), I, B etc., carry out the result of character recognition, existed in the possibility of generation wrong identification between 8 and the alphabetical B etc. of I, numeral of 1 and letter of O (letter), numeral of 0 (zero) of numeral and letter.
Therefore, for example shown in Fig. 9 (a), be that letter, the 3rd are the old numbers of numeral although exist actual number to be the 2nd, it is that numeral, the 3rd are the situations of the new digit of letter that wrong identification is the 2nd.In NID number identifier 1, can high character setting be specific character with the possibility of such wrong identification.And, be under the situation of specific character in the result of character recognition, can set the character (error character) that this specific character is replaced with regulation for.
Specifically, as shown in figure 10, will exist the letter of the numeral of 0 (zero) etc. of possibility of wrong identification and O (letter) etc. to be set at specific character.At this moment, the character of wrong identification is associated and sets easily.In the example of Figure 10, the B of the I of 1 and letter of the O (letter) of 0 (zero) of numeral and letter, numeral, 8 and letter of numeral is associated respectively.
In addition, comprise in character identification result under the situation of predefined specific character that the regulation character setting that is used for replacing with this specific character is error character.In the example of Figure 10, owing to set "? " as error character so, character identification result be specific character the position in, character identification result replaces with "? "
For example, number in the reality shown in Fig. 9 (a) has carried out under the situation of character recognition shown in Fig. 9 (b) like that, according to the setting of relevant specific character shown in Figure 10, " 8 " of the specific character that in character identification result, comprises and " I " replace with error character "? "Its result is from the character identification result shown in NID number identifier 1 output Figure 11 (a).
At this moment, also can be to the information of the additional relevant character identification result of error character.For example, if the setting identification code according to replacing with the character identification result of error character in advance, and it is appended to show in the error character, then can identify the reason that becomes error character easily.Specifically, if with character identification result because the I of letter and identification code when becoming error character are set at " 1 ", the identification code will be because of the B of letter the time is set at " 2 ", character identification result is shown as "? (2) " when being shown as "? (1) ", the B at letter when the I of letter, then can identify the content of the character identification result that becomes error character easily.
Thus, in character identification result, comprise under the situation of specific character of the possibility that has wrong identification, it can be replaced with error character, so the situation that can avoid the wrong identification result that the aftertreatment of detection processing of counterfeit money etc. is exerted an influence.
For example, if although actual number is the number shown in Fig. 9 (a), but with shown in the figure (b) like that under the situation of wrong identification, utilize this character identification result and judge whether consistent with the number of counterfeit money processing, then can not carry out the determination processing of counterfeit money exactly.At this moment, shown in Figure 11 (a), if specific character is replaced with error character, then can be when aftertreatment or before regulation regularly, the existence of identification error character and carry out predetermined process.
Specifically, for example, if regularly being identified as the user who comprises error character in character identification result in regulation carries out predetermined operation in bank note office terminal 3, then the display device that comprises in terminal 3 shows the picture 104 that is used for revising error character as shown in figure 12.In picture 104, in frame 105, show the result of the number identification that comprises error character.In addition, in frame 105, show the character picture 103 of the reality of the character identification result obtained to replace with error character.The user can confirm that shown character picture 103 revises error character by visual.
At this moment, in picture 104, outside frame 105, show the pre-prepd character picture 106 of specific character and 107 to the number of this bank note.
Specifically, under the situation of the character identification result that becomes error character for " B " of " 8 " of numeral or letter, show these character pictures 106 and 107 in the outside of frame 105.Similarly, under the situation of the character identification result that becomes error character for " I " of " 1 " of numeral or letter, show these character pictures 106 and 107 in the outside of frame 105.
According to the font of the number that prints at bank note, even exist on picture 104 by the visual character picture 103 of confirming to become error character, can not judge easily that letter still is the situation of numeral.At this moment, by character picture 106 or the alphabetical character picture 107 in the actual numeral of in number, using of picture 104 demonstrations, thereby can judge easily that the character picture 103 that becomes error character is letter or numeral.
Thus, if confirm that by visual the character picture of preserving is revised as error character in storage part 34, the then aftertreatment of the determination processing of the counterfeit money that can then carry out exactly etc.
In addition, the character identification result that comprises specific character is not limited to use like that the mode of error character shown in Figure 11 (a).For example shown in Figure 11 (b), also can arrange expression character identification result and the character that has the possibility of wrong identification.In addition, also can be shown in Figure 11 (c), substitute characte recognition result and use the character picture 103 of the reality of in character recognition, using.
The flow process of the character recognition processing of present embodiment then, is described.Figure 13 and Figure 14 are the process flow diagrams of being handled by the character recognition that character recognition portion 33 carries out.
At first, with reference to the character attibute information that comprises among the number information 34a that in storage part 34, preserves, the 1st 's of getting Number identification code (the step S1 of Figure 13).Then, confirm that identification code is " 0 (zero) " or " 1 " (step S2).Be (step S2: be) under the situation of " 0 (zero) " or " 1 " in identification code, carry out the character recognition processing based on the template of correspondence.
That is, judge whether this character attibute is fixed as numeral (identification code " 0 (zero) ") or letter (identification code " 1 "), if be fixed as numeral, then only utilize digital template, if be fixed as letter, then only utilize alphabetical template, handle thereby carry out character recognition.
Not (step S2: not), then, judge whether identification code is " 2 " or " 3 " (step S4) under the situation of " 0 (zero) " or " 1 " in identification code.
Then, be (step S4: be) under the situation of " 2 " or " 3 " in identification code, utilize the character recognition that becomes the template of basic character attibute in digital template and the alphabetical template, and calculated the evaluation of estimate (step S5) of the identification character that obtains as E1.Then, then utilize another template and carry out character recognition, and calculate the evaluation of estimate of the identification character that obtains as E2.
Specifically, be under the situation of " 2 " in identification code for example, be numeral owing to become basic character attibute, so utilized the character recognition of digital template, calculate the evaluation of estimate E1 (step S5) of the identification character that has utilized Euclidean distance or related coefficient.Then, utilize the character recognition of alphabetical template, calculated evaluation of estimate E2 (step S6) equally.Be under the situation of " 3 " in identification code, in step S5, utilized the character recognition of alphabetical template and calculated evaluation of estimate E1, in step S6, utilized the character recognition of digital template and calculated evaluation of estimate E2.
In addition, under the situation of the 2nd evaluation of estimate E1 that calculates before having later on or E2, E1 or the E2 that calculates before added the evaluation of estimate that calculates.That is, by with identification code being everybody the evaluation of estimate addition of " 2 " and " 3 ", thus the final evaluation of estimate of calculating as a whole.
On the other hand, in identification code not (step S4: not), then, judge whether identification code is " 4 " (step S7) under the situation of " 2 " or " 3 ".
Here, identification code " 4 " is the identification code of the unclear situation of expression character attibute.Be (step S7: be) under the situation of " 4 " in identification code, utilized both character recognition (step S8) of alphabetical template and digital template.In addition, in identification code be not under the situation of " 4 " (step S7: not), even whether the position of setting identification code is arranged, character identification result that then will this position be made as error character "? ", so that for after carry out the user take as really the industry (step S9).In addition, show the use of identification code " 4 " here, but also have the situation that does not have setting identification code " 4 " as shown in Figure 8.
Thus, if carry out character recognition and handle based on the identification code of setting in number is every, then its result is kept at (the step S10 of Figure 14) in the storage part 34.
Then, (step S11: not), next bit is obtained identification code and processing (the step S1～S10) that carries out character recognition under remaining situation of not carrying out the position that character recognition handles.(step S1～S10) (step S11: be) then then carries out the position that does not have the fixed character attribute is estimated processing (the step S12～S18) of character identification result if whole termination characters identifications that form number are handled.
Here, not having the position of fixed character attribute is the position that fixedly is disengaged of character attibute, to be that identification code is the position of " 2 " or " 3 ".And, the processing of estimating character identification result is, determining becomes the template of the template of basic character attibute and other character attibute and carried out adopting the processing of which character identification result among the result of character recognition and comprise processing under the situation of specific character in character identification result in utilization.
At first, judge in number, whether there is the position (the step S12 of Figure 14) of having distributed identification code " 2 " or " 3 ".Under the situation of the position that does not have identification code " 2 " or " 3 " (step S12: not), end process.
Under the situation of the position that comprises identification code " 2 " or " 3 " (step S12: be), the difference (step S13) of the character recognition evaluation of estimate E2 that the character recognition evaluation of estimate E1 that evaluation utilizes in alphabetical template and digital template to be become the template of basic character attibute and carry out carries out with utilizing another template.
Specifically, calculate the absolute value of the difference of evaluation of estimate E1 and E2, under the situation of this value less than pre-set threshold (step S13: be), with identification code " 2 " and " 3 " character identification result replace with error character "? " (step S18).Carried out character recognition although utilized the template of different character attibutes, the evaluation of estimate of character identification result is represented under the situation of the value that approaches, the possibility height of wrong identification.Therefore, under the situation of the difference more than the threshold value that does not have regulation between evaluation of estimate E1 and the E2, although character identification result is specific character as shown in figure 10, all it is replaced with error character.
On the other hand, the absolute value of the difference of evaluation of estimate E1 and E2 for the situation more than the threshold value of regulation under (step S13: not), comparative evaluation value E1 and evaluation of estimate E2 (step S14).
Its result, become the template of basic character attibute and under the situation more than evaluation of estimate E1 when the having carried out character recognition evaluation of estimate E2 when having carried out character recognition for utilizing another template (step S14: be) in utilization, the character identification result of the position of identification code " 2 " and " 3 " is defined as utilizing the template that becomes basic character attibute and the result (step S15) who has carried out character recognition.That is, in the position of identification code " 2 ", be defined as utilizing the character identification result of digital template, in the position of identification code " 3 ", be defined as utilizing the character identification result of alphabetical template.
With respect to this, under the situation of evaluation of estimate E1 less than evaluation of estimate E2 (step S14: not), with identification code " 2 " and " 3 " character identification result be defined as utilizing in alphabetical template and digital template, be different from the template of the template that becomes basic character attibute and the result (step S16) that carried out character recognition.That is, in the position of identification code " 2 ", be defined as utilizing the character identification result of alphabetical template, in the position of identification code " 3 ", be defined as utilizing the character identification result of digital template.
Thus, if character identification result is definite, then then carry out the processing of relevant specific character as shown in figure 10.At first, judge in the position of the identification code of having determined character identification result " 2 " and " 3 " whether comprise specific character (the step S17 of Figure 14).Then, comprising (step S17: be) under the situation of specific character, with this character replacement be error character "? " (step S18).
On the other hand, owing under the situation that does not comprise specific character (step S17: deny), do not need to replace with error character, so end process.
In addition, about in Figure 14, specific character being replaced with the processing (step S18) of error character, exist by utilizing the character identification result of identification code " 0 (zero) " or " 1 ", thereby also can not replace with the situation of error character.About this situation, concrete example below is shown describes.
Figure 15 is that the character identification result that is illustrated in the position of identification code " 2 " or " 3 " is under the situation of specific character, utilizes the character identification result of the position of identification code " 0 (zero) " or " 1 ", and whether evaluation needs to replace with the process flow diagram of the method for error character.By carrying out this processing, satisfying under the situation of rated condition, need not specific character is replaced with error character, also can determine character identification result.In addition, by setting, can change and whether carry out this and handle, under situation about carrying out, replace the processing of the step S18 among Figure 14 and carry out processing shown in Figure 15.
At first, character identification result in the position of identification code " 2 " or " 3 " is under the situation of specific character, judges whether to comprise in character identification result whether the identification code of the character related with this specific character and this position is " 0 (zero) " or " 1 " (step S20).Here, related character refers to same character, under the situation of the character attibute different with specific character under the situation of the character attibute identical with specific character, Figure 10 is illustrated as reference, refers to the character of setting for the character of this specific character as wrong identification.
Specifically, for example in the number shown in Figure 16 (a) the 2nd of identification code " 3 " the to be identified as shown in (b) as figure be under the situation of " 8 " of numeral of specific character, judge in the 4th～the 10th of the character attibute identification code identical with this specific character " 0 (zero) ", whether to comprise same character.In addition, judge that whether the 1st of identification code " 1 " that character attibute is different with specific character be to be the letter " B " that the character of specific character " 8 " is set as wrong identification.
That is, be under the situation of numeral of specific character at character identification result, judge in the position of character attibute for numeral whether have identical numeral, and judge in the position of character attibute for letter whether exist easy wrong identification to be the letter of this numeral.Similarly, be under the situation of letter of specific character at character identification result, judge in the position of letter whether have identical letter, and judge in the position of numeral, whether to exist easy wrong identification to be the numeral of this letter.
Then, in the character identification result of the position of identification code " 0 (zero) " or " 1 ", do not comprise (the step S20 of Figure 15: not) under the situation of related character, with the step S18 of Figure 14 in the same manner, with specific character replace with error character "? " (the step S21 of Figure 15), and end process.
On the other hand, under the situation that comprises related character (step S20: be), calculate the evaluation of estimate (step S22) of the correlativity between the character picture that is used for the identification code " 2 " estimating the character picture of this character and be identified as specific character or " 3 ".
For example, in the recognition result of Figure 16 (b), in 10th existence with 2nd specific character " 8 " the identical numeral (the step S20 of Figure 15: be) of identification code for " 0 (zero) ".Therefore, shown in Figure 16 (c), like that, compare the 2nd character picture and the 10th character picture, calculate the evaluation of estimate (the step S22 of Figure 15) of the correlativity of two images of expression.
Then, the specific character of the position of identification code " 2 " or " 3 " and in step S20, be judged to be the identification code " 0 (zero) " of related character or " 1 " the identical situation of recognition result under (step S23: be), if the evaluation of estimate that calculates is (step S24: be) more than the pre-set threshold, then keep the character identification result (step S25) that is identified as specific character in step S22.On the other hand, (step S24: not), the character identification result that is identified as specific character is changed (step S27) under the situation of evaluation of estimate less than threshold value.
For example, in the example of Figure 16 (b), owing to 10th character identification result the result for only utilize digital template obtain of identification code for " 0 (zero) ", so the reliability height of character identification result.That is, the 10th character picture can be judged as " 8 " of numeral.
Shown in Figure 16 (c), under the situation of " B ", preestablish threshold value at the character picture of the 2nd the reality of " 8 " that are identified as specific character, make this image of expression and the 10th 's the evaluation of estimate of correlativity of character picture of " 8 " less than threshold value.
Thus, under the situation of evaluation of estimate less than setting of the correlativity of expression the 2nd and the 10th 's character picture (the step S24 of Figure 15: deny), not digital " 8 " as the 2nd character picture, but " B " of the letter of setting for this digital character as easy wrong identification changes to the 2nd character identification result " B " (step S27) of letter from " 8 " of numeral.
At this moment, shown in Figure 16 (d), be under the situation of numeral " 8 " at the character picture of the 2nd reality, the evaluation of estimate of the correlativity between the character picture of expression and the 10th " 8 " becomes more than the threshold value (the step S24 of Figure 15: be).Thus, become correct result as the 2nd the character identification result that is identified as " 8 ", keep this result (step S25).
On the other hand, at the specific character of the position of identification code " 2 " or " 3 " with in step S20, be judged to be the identification code " 0 (zero) " of related character or the character identification result of the position of " 1 " is under the situation of different character (step S23: deny), if the relevant evaluation value of these character picture is pre-set threshold above (step S26: be), the character identification result that then is identified as specific character is changed (step S27).And, (step S24: not), keep the character identification result (step S28) that is identified as specific character under the situation of relevant evaluation value less than threshold value.
For example, in the example of Figure 17 (a), the 2nd character identification result of identification code " 3 " is " B " of specific character, and the 10th character identification result of identification code " 0 (zero) " is " 8 " of numeral.These characters are different characters, but are in the relation (the step S20 of Figure 15: be) that is set at the character of easy wrong identification between the letter and number.Therefore, estimate correlativity (step S22) between the 2nd character picture and the 10th 's the character picture.Relatively being equivalent at the 2nd situation different with character identification result in the 10th (step S23: not) of this moment.
Shown in Figure 17 (b), the character picture of the 2nd reality be " 8 " and the 10th 's character picture under the situation of " 8 ", evaluation of estimate becomes threshold value above (at the step S26 of Figure 15: be).Therefore, the character identification result of the 2nd specific character " B " becomes the result of wrong identification, and the 2nd character identification result changes to " 8 " (step S27) of numeral from " B " of letter.
At this moment, shown in Figure 17 (c), the character picture of the 2nd reality is under the situation of " B ", and the relevant evaluation of estimate between the character picture of expression and the 10th " 8 " is less than threshold value (the step S26 of Figure 15: deny).At this moment, the character identification result of the 2nd specific character " B " is kept this result (step S28) as correct result.
Everybody character picture of taking bank note and obtaining is subjected to the influence of the state of bank note or shooting environmental etc.Especially specific character, because the shape of letter and number is similar, so be affected easily, the possibility of wrong identification improves.Therefore, in step S18 shown in Figure 14, under the situation of specific character, it is all replaced with error character.But, obviously be under numeral or the alphabetical situation, namely be under the situation of " 0 (zero) " or " 1 " in identification code, can wrong identification between numeral and the letter.Figure 15～processing shown in Figure 17 is to utilize this, the identification code " 0 (zero) " that obtains under identical condition or the character picture of " 1 " and the character picture that character recognition is specific character are compared, estimate character identification result, thereby revise the processing of character identification result as required.
In the position of identification code " 0 (zero) " or " 1 ", can always not comprise the character that is associated with specific character.But, under the situation that has comprised the character that is associated, revise the character identification result that becomes specific character as required.Thereby need not to replace with error character, just can determine character identification result.Its result compares with the situation that all the time specific character is replaced with error character, can improve the discrimination that character recognition is handled.
As mentioned above, according to present embodiment, even in number, comprise under the situation of position of a plurality of character attibutes of desirable letter or numeral etc., by utilizing corresponding a plurality of templates, also can check numbers exactly and carry out character recognition.
In addition, in the position that has a plurality of desirable a plurality of character attibutes, and between everybody character attibute, have under the situation of certain rules, by utilizing this regularity, evaluation of estimate when estimating the character recognition that obtains is carried out character recognition thereby can check numbers exactly.
In addition, be identified as under the situation of the specific character of easy wrong identification between each character attibute in the position of desirable a plurality of character attibutes, by it is replaced with error character, thereby can avoid the influence for the aftertreatment of counterfeit money detection that has utilized number etc.
In addition, when revising error character, on the picture of operation of making amendment, except the character picture that becomes error character, the character picture of reality that also shows each character attibute of easy wrong identification, so the user confirms each image and compares by visual, thereby can revise error character easily.
In addition, the character identical with the character that is identified as specific character or easily wrong identification be included in for the character of this character under the situation in the fixing position of character attibute, compare with the character picture that is identified as specific character by the character picture to this, thereby can revise the character identification result that is identified as specific character as required, so can suppress the utilization of error character, improve the discrimination of character recognition.
As mentioned above, the present invention carries out useful technology under the situation of character recognition at the number that comprises a plurality of character attibutes that the paper at check or bank note etc. is printed.
Claims (7)
1. a NID number identifier is the NID number identifier of the number that prints in order to identify paper being carried out number identification, it is characterized in that, comprising:
The kind of described paper is identified in the identification part;
Image production part generates the paper image of having taken described paper;
Character picture cuts out portion, from described paper image, cuts out the subregion that comprises the every character that forms described number as character picture;
Storage part, the character attibute information that storage is associated everybody character attibute of the kind of described paper and described number, and storage and each character attibute corresponding characters are identified the template of usefulness; And
Character recognition portion, based on the kind of the paper of in described identification part, identifying and with reference to described storage part, be under one the situation, to utilize a corresponding described template to carry out character recognition, thereby determine character identification result in the described character attibute that is associated with described character picture; Under the situation of a plurality of described character attibutes that described character picture has been associated, the utilization described template corresponding with each character attibute carried out character recognition repeatedly, and calculate the evaluation of estimate that is used for estimating each character identification result, determine the character identification result of described character picture based on this evaluation of estimate.
2. NID number identifier as claimed in claim 1 is characterized in that,
In the part position of described number, exist regular between the character attibute, and under one of them the situation in the 1st attribute and the 2nd attribute or described the 2nd attribute and described the 1st attribute of being combined into of the 1st character attibute and the 2nd 's character attibute, the information that described storage part can be identified described regularity is included in the described character attibute information stores
Described character recognition portion is identifying under the situation of described regularity,
Utilize 1st template corresponding with described the 1st attribute to carry out character recognition to described the 1st, utilize 2nd template corresponding with described the 2nd attribute to carry out character recognition to described the 2nd, and calculate the summation of described the 1st and the 2nd 's evaluation of estimate as the 1st evaluation of estimate, and
Utilize described the 2nd template that described the 1st described character picture is carried out character recognition, utilize described the 1st template that described the 2nd described character picture is carried out character recognition, and calculate the summation of described the 1st and the 2nd 's evaluation of estimate as the 2nd evaluation of estimate,
Based on described the 1st evaluation of estimate and described the 2nd evaluation of estimate, determine described the 1st and described the 2nd character identification result.
3. NID number identifier as claimed in claim 1 or 2 is characterized in that,
Described storage part will be associated and store as specific character by the character of easy wrong identification between each character attibute under the situation of having carried out character recognition,
Described character recognition portion is under the situation of described specific character at the character identification result of the character picture of a plurality of character attibutes that have been associated, and character identification result is replaced with the error character of regulation.
4. NID number identifier as claimed in claim 3 is characterized in that,
Described character recognition portion character recognition be associated the described character picture of a plurality of character attibutes be described specific character and character recognition for other character picture of the character attibute that only has been associated for the character identical with described specific character or easily under the situation of wrong identification for the specific character of this character, based on the correlativity of described other character pictures of the described character picture of the described a plurality of character attibutes that have been associated and the character attibute that only has been associated, the character identification result of the described character picture of the described a plurality of character attibutes of having determined to be associated.
5. as each described NID number identifier of claim 1 to 4, it is characterized in that,
Described paper is bank note.
6. a number identification method is the number identification method that the number that prints at this paper in order to identify paper is carried out number identification, it is characterized in that, comprising:
Identification step is identified the kind of described paper by the identification part;
Image generates step, takes described paper and generates the paper image;
Character picture cuts out step, from described paper image, cuts out the subregion that comprises the every character that forms described number as character picture;
Character attibute is given step, with reference to the kind of the described paper in described identification step, identified and the storage part of having preserved the character attibute information that everybody character attibute with the kind of described paper and described number is associated, give for the character attibute that cuts out each character picture that cuts out in the step at described character picture; And
Character recognition step is under one the situation, to utilize the template of the correspondence of preserving in described storage part to carry out character recognition, thereby determine character identification result in the described character attibute that described character picture is given; Described character picture is being given under the situation of a plurality of described character attibutes, the template corresponding with each character attibute that utilization is preserved in described storage part carried out character recognition repeatedly, and calculate the evaluation of estimate that is used for estimating each character identification result, determine the character identification result of described character picture based on this evaluation of estimate.
7. number identification method as claimed in claim 6 is characterized in that,
Described character attibute is given step and is comprised:
Regular identification step, one of them the situation in the 1st attribute and the 2nd attribute or described the 2nd attribute and described the 1st attribute of being combined into of the 1st character attibute of identification and the 2nd 's character attibute from the described character attibute information of described storage part, preserving
Described character recognition step comprises the steps:
In described regular identification step, identify under the situation that described regularity is arranged in described number,
Utilize 1st template corresponding with described the 1st attribute to carry out character recognition to described the 1st, utilize 2nd template corresponding with described the 2nd attribute to carry out character recognition to described the 2nd, and calculate the summation of described the 1st and the 2nd 's evaluation of estimate as the 1st evaluation of estimate, and
Utilize described the 2nd template that described the 1st described character picture is carried out character recognition, utilize described the 1st template that described the 2nd described character picture is carried out character recognition, and calculate the summation of described the 1st and the 2nd 's evaluation of estimate as the 2nd evaluation of estimate,
More described the 1st evaluation of estimate and described the 2nd evaluation of estimate, thus determine described the 1st and described the 2nd character identification result.
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| CN104952147A (en) * | 2014-03-28 | 2015-09-30 | 冲电气工业株式会社 | Banknote processing device |
| CN106463018B (en) * | 2014-06-17 | 2019-06-25 | 冲电气工业株式会社 | Media processing device and medium transaction device |
| CN106463018A (en) * | 2014-06-17 | 2017-02-22 | 冲电气工业株式会社 | Medium processing device and medium transaction device |
| TWI549099B (en) * | 2014-09-23 | 2016-09-11 | 佳世達科技股份有限公司 | Method for recognizing serial number of bill |
| CN105989655A (en) * | 2015-03-18 | 2016-10-05 | 光荣株式会社 | An identification number retrieval system and an identification number retrieval method |
| CN107016775A (en) * | 2015-11-05 | 2017-08-04 | 乐金信世股份有限公司 | Medium identifying device and recognition methods and finance device |
| CN107016775B (en) * | 2015-11-05 | 2019-08-20 | 艾泰克Ap 有限公司 | Medium identification device and recognition methods and finance device |
| CN105976502A (en) * | 2016-04-26 | 2016-09-28 | 江苏茴香豆网络科技有限公司 | Acceptance bill serial number identification method and acceptance bill serial number identification device |
| CN106650714A (en) * | 2016-10-08 | 2017-05-10 | 迪堡金融设备有限公司 | Paper note serial number identification method and apparatus |
| CN111476240A (en) * | 2019-01-24 | 2020-07-31 | 富士施乐株式会社 | Information processing apparatus, recording medium, and information processing method |
| CN111476240B (en) * | 2019-01-24 | 2023-07-25 | 富士胶片商业创新有限公司 | Information processing apparatus, recording medium, and information processing method |
| CN111311815A (en) * | 2020-03-16 | 2020-06-19 | 深圳怡化电脑股份有限公司 | Method and device for identifying crown word number, server and storage medium |
| CN111311815B (en) * | 2020-03-16 | 2022-05-13 | 深圳怡化电脑股份有限公司 | Crown word number identification method, device, server and storage medium |
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