JP2016031689A - Passport processing method and passport processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently estimate the photographing date or the like of a face photograph.SOLUTION: A passport processing method includes steps of acquiring an expiration date of a passport, acquiring a color of the passport, and estimating a specific date on the basis of the expiration date and the color of the passport. According to the passport processing method, since the specific date of the passport (an issue date of the passport or a photographing date of a face photograph of the passport) can be efficiently estimated, an image of the face photograph of the passport can be applied to, for example, a field of image collation or the like.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a passport processing method and a passport processing apparatus.

  Patent Document 1 discloses a reader device that can communicate with a passport. This reader device determines the authenticity of the passport based on the time required to execute the authentication command. This improves the reliability of superficial and physical passport duplication.

International Publication No. 2013/125245

  The present disclosure provides a passport processing method and a passport processing apparatus that efficiently estimate the shooting date of a face photograph.

  The passport processing method in the present disclosure is a passport processing method for performing processing including estimation of a specific date of a passport (the date of issue of a passport or the date of photographing of a passport face photo) using a processor. A step of acquiring an expiration date of a passport, a step of acquiring a passport color, and a step of estimating a specific date based on the expiration date and the color of the passport.

The passport processing apparatus in the present disclosure is a passport processing apparatus that performs processing including estimation of a specific date of a passport (the date of issue of a passport or the date of photographing of a passport face photo). A wireless communication unit for acquiring a deadline, an input unit for acquiring a passport color, and a processor for estimating the specific date based on the expiration date and the passport color,
As a result, it is possible to efficiently estimate the specific date of the passport (the date of issue of the passport or the date of shooting of the face photograph of the passport).

  The passport processing method and passport processing apparatus according to the present disclosure are effective for efficiently estimating the date of photographing a face photograph.

Block diagram of passport processing apparatus in Embodiment 1 Flowchart for explaining face matching processing in the first embodiment Flowchart for explaining passport photographing date estimation processing in the first embodiment Screen shot when acquiring passport color information in Embodiment 1 Flowchart for explaining the secular change correction process in the first embodiment The figure explaining the concept which calculates T2 based on the secular period in Embodiment 1 The figure explaining the concept which calculates T2 based on the secular period and the secular age in Embodiment 1.

Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of already well-known matters and repeated descriptions for substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.

  The inventor (s) provides the accompanying drawings and the following description in order for those skilled in the art to fully understand the present disclosure, and is intended to limit the subject matter described in the claims. Not what you want.

(Embodiment 1)
Hereinafter, the first embodiment will be described with reference to FIGS.

[1-1. Constitution]
FIG. 1 is a block diagram of the passport processing apparatus according to the first embodiment.

  The passport processing apparatus 100 includes a processor 101, a wireless communication unit 102, a photographing unit 103, an input unit 104, a display unit 105, a storage unit 106, an I / O controller 107, and a bus 108.

  The processor 101 controls other elements of the passport processing apparatus 100 via the bus 108. For example, a general-purpose CPU (Central Processing Unit) can be used as the processor 101.

  The wireless communication unit 102 communicates with an IC (Integrated Circuit) chip 111 disposed inside a passport 110. The wireless communication unit 102 reads various information from the passport 110 by communicating with the IC chip 111. The wireless communication unit 102 sends the information read from the passport 110 to other elements via the bus 108. For example, a dedicated CPU can be used for the wireless communication unit 102. The wireless communication unit 102 operates as a processor in a broad sense, and the wireless communication unit 102 can be configured to be integrated with the processor 101.

  The photographing unit 103 photographs the face of the collator 120 of the passport processing apparatus and generates a collator face image. The photographing unit 103 sends the generated collator face image to other elements via the I / O controller 107 and the bus 108. The photographing unit 103 may be incorporated in the passport processing apparatus 100, or may be disposed at a location away from the passport processing apparatus via wired or wireless.

  The input unit 104 receives an input from the collator 120. The input unit 104 sends the input received from the collator 120 to other elements via the I / O controller 107 and the bus 108. For the configuration of the input unit 104, for example, a keyboard, a touch screen, a voice input device, and a gesture input device can be used.

  The display unit 105 presents information to the collator 120. The display unit 105 acquires information generated by other elements such as the processor 101 via the bus 108 and the I / O controller 107 and presents the information to the collator 120. The display unit 105 can also present information generated by the display unit 105 itself to the collator 120. For example, a liquid crystal display can be used for the configuration of the display unit 105.

  The storage unit 106 acquires various information from other elements and holds the information temporarily or permanently. The storage unit 106 is a general term for so-called primary storage devices and secondary storage devices, and a plurality of storage units 106 may be physically arranged. For example, a DRAM (Direct Random Access Memory), a HDD (Hard Disk Drive), or an SSD (Solid State Drive) is used as the configuration of the storage unit 106.

  The I / O controller 107 exchanges information between elements connected to the I / O controller 107 and elements connected via the bus 108. A plurality of I / O controllers 107 may be arranged for each connected element. The I / O controller 107 operates as a processor in a broad sense, and the I / O controller 107 can be configured to be integrated with the processor 101. Various I / O controllers 107 are used according to physical interfaces of connected elements. For example, a USB controller or a wireless communication controller is used for the configuration of the I / O controller 107.

  In the present embodiment, the term “verifier” is used to mean the person to be face-matched, but the term “verifier” includes the user of the passport processing apparatus 100.

[1-2. Operation]
FIG. 2 is a flowchart for explaining the face matching process in the first embodiment. Hereinafter, each step in the flowchart is mainly processed by the processor 101.

  In step S200, face collation processing by the passport processing apparatus 100 is started. A specific example of a situation where face matching processing is used is immigration at the time of return at an airport, for example. In immigration, the examiner verifies the person by comparing the passport photo with the person's face. The face matching process in step S200 is effective in reducing the time and labor of such examiners.

  In step S202, the processor 101 performs passport photographing date estimation processing. The passport photographing date estimation process will be described in detail with reference to FIG.

  FIG. 3 is a flowchart for explaining the passport photographing date estimation process in the first embodiment.

  In step S300, the processor 101 starts the passport photographing date estimation process. The passport shooting date estimation process is one of the passport processes, and includes the estimation of the shooting date of the face photograph of the passport. Various information regarding the passport is stored in the IC chip. However, the shooting date of the passport photo is not stored in the IC chip. Therefore, the shooting date of the face photograph of the passport is estimated by performing the passport shooting date estimation process using the passport processing method of the present disclosure. In general, the date of photograph of the passport photo and the date of issuance of the passport are very close dates. Therefore, the passport processing method of the present disclosure estimates the shooting date of the face photograph of the passport by estimating the date of issue of the passport. In other words, the passport processing method of the present disclosure can estimate both the date of issue of the passport and the date of shooting of the face photograph of the passport. In the present embodiment, the process for estimating the shooting date of the passport is directly applicable to the process for estimating the date of issue of the passport. Hereinafter, in the present embodiment, for the sake of convenience, description will be made in the form of estimating the shooting date of the face photograph of the passport. In this disclosure, the date including the two concepts (passport issuance date and passport face photo date) is defined as “specific date of passport”.

  In step S302, the processor 101 acquires the expiration date of the passport 110. The expiration date of the passport 110 is read by the wireless communication unit 102 from the IC chip 111 of the passport 110. The expiry date of the passport 110 may be read from the passport 110 by an optical reader.

In step S304, the processor 101 acquires the passport color information of the passport 110. The color information of the passport 110 is acquired when the input unit 104 receives input from the collator 120. The passport color information is information related to the cover color of the passport. Hereinafter, acquisition of passport color information will be described in detail with reference to FIG. The passport color information of the passport 110 may be read from the passport 110 by an optical reader.

  FIG. 4 is a screen shot when acquiring passport color information in the first embodiment.

  In FIG. 4, information prompting input of passport color information “Please select a passport color” is presented on the display unit 105. When the collator 120 perceives information prompting the user to input the passport color information, the collator 120 inputs the passport color information using the input unit 104A or the input unit 104B, and uses the input unit 104C after the passport color information is input. Selection of either 104A or the input unit 104B is transmitted to the processor 101 via the I / O controller 107 and the bus 108. The input unit 104 </ b> A, the input unit 104 </ b> B, and the input unit 104 </ b> C are touch screens superimposed on the display unit 105. When the input unit 104A is selected, the passport color information “red” is transmitted to the processor 101 via the I / O controller 107 and the bus. When the input unit 104B is selected, the passport color information “blue” is transmitted to the processor 101 via the I / O controller 107 and the bus. In this way, the processor 101 acquires passport color information.

  In step S306, the processor 101 determines whether the passport color information acquired in step S304 is “red” or “blue”.

  In step S308 (“red” in step S306), the processor 101 estimates the passport shooting date. The passport shooting date is the shooting date of the face photo of the passport. Specifically, the processor 101 estimates a date that is 10 years ago from the expiration date acquired in step S302 as a passport photography date. Since the passport cover is red, it is estimated that the passport issuance date is 10 years before the passport expiration date. Therefore, the processor 101 performs the process of step S308, so that the passport photographing date (≈ the passport issuance date) can be estimated.

  In step S310 ("blue" in step S306), the processor 101 estimates the passport shooting date. The passport shooting date is the shooting date of the face photo of the passport. Specifically, the processor 101 estimates a date that is 10 years ago from the expiration date acquired in step S302 as a passport photography date. Since the passport cover is blue, it is estimated that the passport issuance date is five years before the expiry date of the passport. Therefore, it is possible to estimate the passport photographing date (≈ the date of issue of the passport) by the processor 101 performing the process of step S310.

  In step S312, the passport photographing date estimation process ends (the process proceeds to step S204).

  In step S204, the processor 101 acquires a collator face image. The collator face image is a face image of the collator 120. In this embodiment, the collator 120 is the owner of the passport 110 (more precisely, the person who applies for the immigration examination as the owner of the passport 110). In step S <b> 204, the imaging unit 103 captures a face image of the collator 120. The collator face image photographed by the photographing unit 103 is transmitted to the processor 101 via the I / O controller 107 and the bus 108. In this way, the processor 101 acquires the collator face image.

In step S206, the processor 101 estimates the collator face age using the collator face image acquired in step S204. The collator face age is the age of the collator 120 estimated from the collator face image. Various methods for estimating the collator face age from the collator face image have been proposed. A known technique can be used to estimate the collator face age in the present disclosure. An example of a method for estimating the collator face age is an estimation method using learning data. The estimation method using learning data is a method of creating an estimation model using a face image of known age called learning data and using it for estimation. A feature on a face image called a feature amount can be acquired from a large amount of learning data. By clustering the feature amount by age, the feature amount and the age can be associated. In the present embodiment, the storage unit 106 stores such association in advance as a database. Then, the processor 101 extracts a feature amount from the collator face image to be newly estimated. The processor 101 estimates the collator face age by comparing and referring to the feature amount with the database stored in the storage unit 106. The method described above is an example, and various other methods can be used for estimating the collator face age performed by the processor 101.

  In step S208, the processor 101 obtains the passport date of birth. The passport holder's date of birth is the date of birth of the genuine holder of the passport 110. The passport holder's date of birth is read from the IC chip 111 of the passport 110 by the wireless communication unit 102. The passport holder's date of birth may be read from the passport 110 by an optical reader.

  In step S210, the processor 101 calculates the passport age. The passport age is the age at the time of issuance of the passport (issue date) of the genuine holder of the passport 110. The passport age can be calculated using the date of birth of the passport holder acquired in step S208 and the passport shooting date estimated in step S202 (≈ date of passport issuance).

  In step S212, the processor 101 determines whether or not the absolute value (degree of divergence) of the difference between the passport age and the collator face age is equal to or greater than a predetermined value. The face matching performed in the matching process described later in step S222 is a technique for determining whether the subject person of a specific face image is the same as the person to be matched. In order to accurately perform face matching, it is preferable that the difference between the age of the subject person when the face photograph is taken and the age of the person to be verified is small. The characteristics of a person's face include elements specific to individuals and elements specific to age. Face matching is a comparison in which the feature is replaced with a feature value. Therefore, even if the same person is a subject and a person to be collated, when collation is performed using an old face photograph, it may be erroneously determined that the person is not the same person. This is because it is assumed that the characteristic amount characteristic of age is drastically changed.

  In step S214 (NO in step S212), the processor 101 sets the threshold value to T1. The threshold is a threshold used for face matching in step S222. In this embodiment, the higher the threshold value, the more severe the determination (not determined to be the same person unless the likelihood is high), and the lower the threshold, the gentler the determination (determined to be the same person even if the likelihood is somewhat low). . Step S214 is a step that is processed when NO in step S212. In step S212, NO means that the difference between the passport age and the collator face age is small. The fact that the difference between the passport age and the face age of the collator is small means that the real age of the passport holder when the face picture of the passport is taken is close to the face age of the collator. If the passport holder's actual age when the passport photo is taken is close to the collator's face age, it can be expected that the accuracy of the face collation is relatively high. This is because, as described above, the collation result is not easily influenced by a change in the feature amount (aging) with age. Therefore, T1 set as the threshold value in step S214 can be set to a relatively higher value than T2 described later.

In step S216 (YES in step S212), the processor 101 performs an aging correction process. Step S216 is a step processed when YES is determined in step S212. YES in step S212 means that the difference between the passport age and the collator face age is large. A large difference between the passport age and the collator face age means that the real age of the passport holder when the face photograph of the passport is taken is different from the collator face age. If the passport holder's actual age when the passport photo is taken is different from the collator's face age, the accuracy of face collation may be relatively low. This is because, as described above, the collation result is easily influenced by the change in the feature amount (aging) with age. Therefore, T2 set as the threshold value in step S218 following step S216 is set to a relatively lower value than T1 set as the threshold value in step S214. The aging correction process is based on (1) the aging period from the date of photograph of the passport photo (≒ the date of issuance of the passport) to the present, or (2) in addition to (1) which aging period This is a process of setting T2 depending on whether it occurred in the age (aged generation). The aging correction process will be described in detail with reference to FIG.

  FIG. 5 is a flowchart for explaining the secular change correction process according to the first embodiment.

  In step S500, the processor 101 starts an aging correction process.

  In step S502, the processor 101 calculates an aging period. The aged period is a period that has passed from the date of photographing the passport face photo (≈ the date of issuance of the passport) to the present (verification date). The date of photograph of the passport photo (≈ the date of issuance of the passport) has been acquired by the processor 101 in step S202 as the specific date. The verification date recorded by the storage unit 106 is acquired by the processor 101.

  In step S504, the processor 101 calculates the age. The aging age indicates in which generation in age (years) the aging period occurred. For example, even if the aging period is 10 years, the aging age is different between 10 years from 10 to 20 years and 10 years from 20 to 30 years. As a method for expressing the age, it is possible to define a certain age as a zone and count how many times the zone has passed by zone.

  In step S506, the processor 101 (1) calculates T2 based on the aging period, or (2) calculates T2 based on the aging period and aging. The processes (1) and (2) are alternative, and the process of step S504 is not essential when the process (1) is performed. In order to increase the precision of the collation, the process (2) is preferable, but (1) is preferable in terms of the processing speed. Hereinafter, the processing (1) and the processing (2) will be described individually with reference to the drawings.

  The process of step S506 (1) will be described. Step S506 (1) is processing in which the processor 101 calculates T2 based on the aging period. The longer the aging period, the more likely the face of the genuine owner of the passport has changed. Therefore, it is preferable that the value of T2 is lower as the aging period is longer. Therefore, the processor 101 performs processing for reducing T2 based on the aging period. Specific processing will be described below with reference to FIG.

  FIG. 6 is a diagram for explaining the concept of calculating T2 based on the aging period in the first embodiment. In FIG. 6, it is assumed that the date of photographing of the passport face image 600 is estimated in step S202 to be August 1, 2010. Further, it is assumed that the difference between the passport holder age and the collator face age of the collator who is the subject of the collator face image 602 is large. Here, the processor 101 sets a value obtained by lowering the threshold value from the initial value by “2” to T2 every time the aging period increases by one year. In FIG. 6, since the collation date is August 1, 2015, the threshold value is reduced by 10 from the initial value. Here, the initial value may be high to some extent, and may be the same value as T1, for example. Note that the aging period may be calculated in finer time units. For example, the threshold value may be decreased by “0.1” every time one month elapses. Further, the degree of reduction of the threshold can be arbitrarily set.

  The process of step S506 (2) will be described. Step S506 (2) is a process in which the processor 101 calculates T2 based on the aging period and the aging age. The longer the aging period, the more likely the face of the genuine owner of the passport has changed. In addition, the more likely the age is in the younger years, the more likely it is that the authenticity of the passport face changes. Therefore, the value of T2 is preferably set to be lower as the aging period is longer and as the aging period is generated in a younger generation. Therefore, the processor 101 performs processing for reducing T2 based on the aging period and the aging age. Specific processing will be described below with reference to FIG.

  FIG. 7 is a diagram for explaining the concept of calculating T2 based on the aging period and the aging age in the first embodiment. In FIG. 7, it is assumed that the shooting date of the passport face image 700 is estimated in step S202 to be August 1, 2010. It is assumed that the passport age, which is the age at the time of issuing the passport of the genuine holder of the passport 110 (issue date), is estimated to be 18 years old in step S210. Further, it is assumed that the collator face age, which is the age of the collator 120 estimated from the collator face image 702, is 23 years old, and has a large divergence from the passport holder age (18 years old). In this case, in step S504, the age is expressed as having passed twice in the teens and three times in the 20s. The correction amount table 703 shown in FIG. 7 is a table showing how much the threshold value is reduced every one year. The correction amount table 703 is stored in the storage unit 106. In the example shown in FIG. 7, 2 (the number of years in the teenage) × −3 + 3 (the number of years in the 20s) × −2 = −12 is calculated as the correction amount, so the processor 101 sets the threshold value by “12” from the initial value. The lowered value is set to T2. Here, the initial value may be high to some extent, and may be the same value as T1, for example. In addition, you may calculate an aged age in a finer time unit. For example, a zone may be provided every five years. Further, the degree of reduction of the threshold can be arbitrarily set. In addition, the correction amount for each age group may be set for each age group. Preferably, the correction amount for each age group is set to a lower threshold for younger generations. It is preferable. That is, T2 is preferably calculated as a gradual threshold value when the age group includes a predetermined generation, compared to when a generation older than the predetermined generation is included.

  In step S220, the processor 101 obtains a passport face image. The passport face image is an image of a face photograph of the passport 110. The passport face image is read from the IC chip 111 of the passport 110 by the wireless communication unit 102. The passport face image may be read from the passport 110 by an optical reader.

  In step S222, the processor 101 collates the passport face image with the collator face image using the threshold T1 (when passing through step S214) or T2 (when passing through step S218). A known method can be adopted for the collation except for setting a threshold value. As an example of collation, there is a method of comparing the feature amount of the passport face image and the feature amount of the collator face image. A threshold is used for the permissible determination of the degree of divergence between the feature quantities. The use of the threshold value in collation can be widely applied, and the threshold value for adjusting the severity and accuracy of determination is widely included in the threshold value of the present disclosure.

  In step S224, the processor 101 ends the face matching process. Although not shown, the processor 101 may display the collation result via the display unit 105 or the like after step S224.

[1-3. Effect]
As described above, in the present embodiment, the passport processing method uses the processor to perform processing including estimation of the specific date of the passport (the date of issue of the passport or the date of photograph of the passport photo). A passport processing method comprising: obtaining a passport expiration date; obtaining a passport color; and estimating a specific date based on the expiry date and passport color.

  Further, in the present embodiment, the passport processing apparatus is a passport processing apparatus that performs processing including estimation of a specific date of the passport (the date of issue of the passport or the date of photographing of the passport photo), A wireless communication unit that acquires a passport expiration date; an input unit that acquires a passport color; and a processor that estimates the specific date based on the expiration date and the passport color.

  Thereby, it is possible to estimate the specific date of the passport (the date of issue of the passport or the date of photographing of the face photo of the passport) with simple information. Therefore, it is possible to efficiently estimate the specific date of the passport (the date of issuance of the passport or the date of shooting of the face photograph of the passport).

  In the present embodiment, the passport processing method further includes a step of inquiring the user of the passport color.

  Further, in the present embodiment, the passport processing apparatus outputs to the display unit the content for inquiring the user about the color of the passport.

  Thereby, it is possible to estimate the specific date of the passport (the date of issuance of the passport or the date of photographing the face photo of the passport) by a simple and intuitive operation. Therefore, it is possible to more efficiently estimate the specific date of the passport (the date of issuance of the passport or the date of photographing of the face photo of the passport).

  Further, in the present embodiment, the passport processing method includes a step of obtaining a collator face image that is a face image of a collator, and a step of obtaining a passport face image that is an image of a face photograph of the passport. The processor estimates the collator face age that is the collator's age from the collator image, calculates the passport holder age that is the age of the passport owner's passport issuance, and the collator face If the age difference is less than a predetermined value as a result of comparing the age with the passport holder age and comparing the collator face age with the passport holder age, the collation between the verifier face image and the passport face image is performed with a threshold T1. If the age difference is equal to or greater than a predetermined value as a result of comparing the collator face age with the passport age, a threshold value that is a threshold value that is a gentler threshold than the threshold value T1 Including the step of performing at T2. T2 is set based on the age period is calculated from the specific date.

  In the present embodiment, the passport processing apparatus acquires a collator face image that is a collator face image, and the wireless communication unit obtains a passport face image that is a face photograph image of the passport, and a processor. Estimates the collator's face age, which is the collator's age, from the collator's image, calculates the passport age, which is the age of the passport owner when issuing the passport, and compares the verifier face age with the passport age If the age difference is less than the predetermined value as a result of comparing the collator face age and the passport age, the collator face image and the passport face image are collated with a threshold T1, and the collator face age and the passport If the age difference is equal to or greater than a predetermined value as a result of comparing the person's ages, the collator face image and the passport face image are collated with a threshold value T2 which is a gentler threshold value than the threshold value T1, and T2 is set to a specific year. Set based on the aging period calculated from the date.

  Thereby, face collation can be performed with a finer precision than a prior art by utilizing the specific date of a passport.

  In the present embodiment, the passport processing method sets T2 as a gentler threshold when the value of the aging period is larger than a predetermined value.

In the present embodiment, the passport processing apparatus sets T2 as a gentler threshold than when the value of the aging period is larger than a predetermined value.

  Thereby, face matching can be performed with higher accuracy by using the characteristics of the aging period and face matching.

  In the present embodiment, the passport processing method calculates T2 based on an aging period and an aging age calculated from a specific date.

  In the present embodiment, the passport processing apparatus calculates T2 based on an aging period and an aging age calculated from a specific date.

  This makes it possible to perform face matching with higher accuracy by utilizing the characteristics of the age and face matching in addition to the aging period.

  In the present embodiment, the passport processing method calculates T2 as a gradual threshold when the age group includes a predetermined generation, compared to when the generation includes an older generation than the predetermined generation.

  In the present embodiment, the passport processing apparatus calculates T2 as a gradual threshold when the age group includes a predetermined generation, compared to when the generation includes an older generation than the predetermined generation.

  This makes it possible to perform face matching with higher accuracy by taking into account changes in the face that are peculiar to age.

(Other embodiments)
As described above, the first embodiment has been described as an example of the technique disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can also be applied to an embodiment in which changes, replacements, additions, omissions, and the like are appropriately performed. Moreover, it is also possible to combine each component demonstrated in the said Embodiment 1, and it can also be set as a new embodiment.

  As described above, the embodiments have been described as examples of the technology in the present disclosure. For this purpose, the accompanying drawings and detailed description are provided.

  Accordingly, among the components described in the accompanying drawings and the detailed description, not only the components essential for solving the problem, but also the components not essential for solving the problem in order to illustrate the above technique. May also be included. Therefore, it should not be immediately recognized that these non-essential components are essential as those non-essential components are described in the accompanying drawings and detailed description.

  Moreover, since the above-mentioned embodiment is for demonstrating the technique in this indication, a various change, replacement, addition, abbreviation, etc. can be performed in a claim or its equivalent range.

  The present disclosure is applicable to a method and apparatus for processing a passport. Specifically, the present disclosure is applicable to a passport reader used at an airport or the like.

DESCRIPTION OF SYMBOLS 100 Passport processing apparatus 101 Processor 102 Wireless communication part 103 Image | photographing part 104 Input part 104A input part 104B input part 104C input part 105 Display part 106 Memory | storage part 107 I / O controller 108 Bus 110 Passport 111 IC chip 120 Verification person 600 Passport face Image 602 Collator face image 700 Passport face image 702 Collator face image 703 Correction amount table

Claims (12)

A passport processing method for performing processing including estimation of a specific date of a passport (the date of issue of a passport or the date of photographing of a passport face photo) using a processor,
Obtaining an expiration date of the passport;
Obtaining a color of the passport;
Estimating the specific date based on the expiration date and the color of the passport;
including,
Passport processing method. The passport processing method is:
Inquiring the user about the color of the passport;
Further including
The passport processing method according to claim 1. The passport processing method is:
Obtaining a collator face image that is a face image of the collator;
Obtaining a passport face image that is an image of a face photograph of the passport,
The processor is
Estimating a collator face age that is an age of the collator from the collator image;
Calculating a passport holder age that is an age at the time of issuance of a passport of the passport owner;
Comparing the collator face age and passport age;
As a result of comparing the collator face age and the passport age, if the difference in age is less than a predetermined value,
Collating the collator face image and the passport face image with a threshold T1,
As a result of comparing the collator face age and passport holder age, if the divergence of age is a predetermined value or more,
Performing the matching between the collator face image and the passport face image at a threshold value T2, which is a milder threshold value than the threshold value T1,
Including
The T2 is set based on an aging period calculated from the specific date.
The passport processing method according to claim 1. The T2 is set as a gentler threshold when the value of the aging period is larger than a predetermined value.
The passport processing method according to claim 3. The T2 is calculated based on an aging period and an aging age calculated from the specific date.
The passport processing method according to claim 4. The T2 is calculated as a gentler threshold when the aging includes a predetermined generation than when including an older generation than the predetermined generation.
The passport processing method according to claim 5. A passport processing apparatus that performs processing including estimation of a specific date of a passport (the date of issue of a passport or the date of photographing of a passport face photo),
The passport processing apparatus
A wireless communication unit for obtaining an expiration date of the passport;
An input unit for obtaining the color of the passport;
A processor that estimates the specific date based on the expiration date and the color of the passport;
Having
Passport processing device. The passport processing apparatus
Output to the display the content for inquiring the user about the color of the passport.
The passport processing apparatus according to claim 7. The passport processing apparatus
Get the collator face image that is the face image of the collator,
The wireless communication unit
Obtaining a passport face image, which is an image of a face photograph of the passport,
The processor is
Estimating the collator face age that is the collator's age from the collator's image,
Calculate the passport holder age, which is the age at the time of issuing the passport of the owner of the passport,
Compare the verifier face age and passport age,
As a result of comparing the collator face age and the passport age, if the difference in age is less than a predetermined value,
The collator face image and the passport face image are collated with a threshold T1,
As a result of comparing the collator face age and passport holder age, if the divergence of age is a predetermined value or more,
The collation of the collator face image and the passport face image is performed at a threshold value T2, which is a milder threshold value than the threshold value T1,
The T2 is set based on an aging period calculated from the specific date.
The passport processing apparatus according to claim 8. The T2 is set as a gentler threshold than when the value of the aging period is larger than a predetermined value.
The passport processing apparatus according to claim 9. The T2 is calculated based on an aging period and an aging age calculated from the specific date.
The passport processing apparatus according to claim 8. The T2 is calculated as a gentler threshold when the aging includes a predetermined generation than when including an older generation than the predetermined generation.
The passport processing apparatus according to claim 11.

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