JPH09138851A - Individual identifying method, its device and passage monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent illegal use and to speedily identify an individual without increasing the storing capacity of a system. SOLUTION: Feature information on a face recorded in a card 17 and feature information extracted 9 from a face picture inputted from a camera 14 are compared 10 with each other and at the time of judging both feature information to be approximate to each other within a prescribed range, the individual is identified 25 to be the possessor of the card 17. In addition, an inputted password 28 and a password 27 on the card 17 and/or registered corresponding to the card 17 are compared with each other and when they are equal, the individual is identified to be the possessor of the card 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a person identification method and an apparatus for identifying whether a person holding a card is the person or not,
And a passage monitoring system using the same.

[0002]

2. Description of the Related Art Conventionally, when a card is used for depositing or paying out money by ATM or the like, entering or leaving a room, or entering a predetermined area, the card holder inserts or approaches a card possessed by the card reader and recites it. The user inputs a number (ID number) with a key or the like, compares the input ID number and / or the read ID number with a registered number, and if they match, identifies the user and pays out money. The mainstream was to temporarily open the door.

[0003]

However, in such a conventional system, even if the card user is not necessarily the person himself / herself, the ID number of the registered person can be used or the ID number of the registered person can be used.
By borrowing the card, or by stealing the ID number of another person, or by stealing or copying the ID card itself, another person is identified as the person.

The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a person identification method and apparatus for surely identifying a person at high speed by preventing plagiarism and the like, and a passage monitoring system. It is in the place of providing. Further, another object of the present invention is to provide a person identifying method and apparatus for identifying a person at high speed without increasing the storage capacity of the system, and a passage monitoring system.

[0005]

In order to solve this problem, a person identifying method according to the present invention uses feature information of a face recorded on a card and feature information extracted from a face image input from a camera. Are compared, and when it is determined that both pieces of characteristic information are approximations within a predetermined range, it is identified as the owner of the card. Further, the entered personal identification number is compared with the personal identification number registered on the card and / or corresponding to the card, and when both the personal identification numbers match, it is identified as the owner of the card.

Further, the person identifying apparatus of the present invention comprises a card reading means for reading the characteristic information of the face recorded on the card, a characteristic information extracting means for extracting the characteristic information from the face image input from the camera, and a card. An identification unit that compares the read characteristic information with the characteristic information extracted from the face image, and identifies both of the characteristic information as being the owner of the card when it is determined that the characteristic information is an approximation within a predetermined range. And is provided.

Here, the identification means further compares the input personal identification number with the personal identification number registered on the card and / or corresponding to the card, and when both personal identification numbers match, Identify as the owner of the card. Also, when the identification means identifies the owner of the card,
It further comprises feature information replacing means for replacing the face feature information recorded on the card with the extracted feature information.
Further, when the characteristic information of the face recorded on the card is rewritten, the characteristic information replacing means records the rewritten date and time on the card. Further, when the face reading information recorded on the card is accessed, the card reading means records the accessed location and the date and time on the card.

Further, the passage monitoring system of the present invention includes a card on which at least face characteristic information is recorded, and card reading means for reading the face characteristic information recorded on the card.
Feature information extracting means for extracting feature information from the face image input from the camera, and the feature information read from the card and the feature information extracted from the face image are compared, and both feature information are within a predetermined range. When it is determined that they are close to each other, an identification means for identifying the owner of the card and a passage permission means for permitting the holder to pass through a predetermined place when the owner is identified. It is characterized by being provided.

[0009] Here, the identification means further comprises: a personal identification number registration means in which a personal identification number is registered on the card and / or corresponding to the card; and a personal identification number input means for inputting the personal identification number. The input personal identification number and the registered personal identification number are compared with each other, and when both the characteristic information are approximate within a predetermined range and the personal identification numbers match, it is identified as the owner of the card. The recording unit of the card is composed of magnetic recording, IC memory, optical memory, or magneto-optical recording.

Further, the person identifying method of the present invention compares the face image information recorded in the database with the face image information input from the camera, and determines that both pieces of information are approximations within a predetermined range. When the judgment is made, it is identified as the owner of the card. Here, the information is feature information extracted from the face image. Further, the entered personal identification number is compared with the personal identification number registered on the card and / or corresponding to the card, and when both the personal identification numbers match, it is identified as the owner of the card.

With the above configuration, it is possible to provide an economical person identification method and its apparatus, and a passage monitoring system that are difficult to steal and do not increase the storage capacity of the system.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example using an ID card will be described in detail as a preferred embodiment according to the present invention with reference to the accompanying drawings. In order to ensure the identity of the person, image information of the finger / palmprint, voiceprint, retinal pattern, blood type, body type, whole face, or part of the face, or their characteristic information is registered in the database, If the number match is confirmed, the finger / palmprint, voiceprint, retinal pattern, blood type, body type, whole face, or part of the face are read using a predetermined device, and the read image or their characteristic information is read. And the image information registered in the database corresponding to the ID number or the feature information thereof, and when they match within a predetermined range, a method of identifying the person may be used. As the volume increases and the storage capacity of the system becomes enormous, it takes time to search the database, and a high-speed processing unit or parallel processing is required to make quick decisions. More preferable examples in the embodiment will be described an example of storing feature information of the face image on the ID card.

<Example of Configuration of Passage Monitoring System of the Present Embodiment> FIG. 1 is a diagram showing an example of the configuration of a passage monitoring system of the present embodiment. In FIG. 1, reference numeral 1 denotes a central processing unit (CPU) that executes a central process of the present system, and performs input / output processing, various arithmetic processing, image processing, face characteristic information extraction processing, and the like.
Performs calculation and control such as print output processing. Reference numeral 2 denotes a CRT used for displaying the system, 3 denotes a keyboard used for inputting to the system, 4 denotes a registered ID, 5 stores a registered password 27, a processing program 25, etc., a hard disk, a silicon disk, PD, ZIP, and MO. , CD, F
D and other external storage devices.

Reference numeral 6 denotes a RAM which loads and executes a processing program 25 in a file as a processing program 26. Further, the RAM may include the VRAM 7. 8
Is a ROM, which includes programs for a feature extraction process 9 and a collation process 10. Reference numeral 11 denotes a printer (PRT),
Prints out information such as abnormal information and statistical information. Reference numeral 12 denotes a communication interface for transmitting / receiving information to / from a center or a predetermined place via a local or public communication line 22.

Reference numeral 13 is a camera interface, which is a CCD
The image information captured by the camera 14 is interfaced to the system bus 21 so that the CPU 1 can access the image information. Here, it goes without saying that the camera may be an analog camera or a digital camera. A card reader / writer interface 15 connects the card reader / writer 16 and the CPU 1 via a bus 29. Reference numeral 17 denotes an ID card formed of a magnetic card, an IC card, an optical card, a magnetic optical card, or the like, which is read / written by a card reader / writer 16.

Reference numeral 18 denotes a door lock control interface.
This is a control interface for locking and unlocking the door 19 by the PU1. Reference numeral 20 denotes an emergency bell interface, which sounds an emergency bell 21 when an emergency sensor (not shown) senses an emergency, or when a specially designated person enters or leaves the room, or unlocks the door. This is an interface for changing the tone and sounding the emergency bell 21 when the user performs the operation. Reference numeral 24 denotes a personal identification number input interface, which is an interface for the CPU 1 to read the personal identification number input by the occupant through the personal identification number input part 28.

In FIG. 1, reference numeral 23 enclosed by a dotted line
It is needless to say that the part can be partially or wholly connected by a communication line to perform remote control. <Example of Configuration of ID Card> FIG. 2 is a diagram showing an example of the ID card 17, and generally includes a photograph 31 and printing of necessary items such as company name, company address, affiliation, position, personal name, and date of birth. A readable information section 32 and a recording section (a magnetic stripe section in the case of the present embodiment) 30.

FIG. 3 shows an example of information contained in the recording unit 30. The recording unit 30 includes fixed information 40 that is not rewritten and variable information 50 that is rewritten. The fixed information 40 is configured as follows, for example. That is, it is a number to be compared with the password input by the password input unit 28 shown in FIG. 1, and is not recorded in the recording unit 30 depending on the system, but is registered in the registration password 27 (see FIG. 1).
It can be registered only in the system as it is, can be recorded only in the ID card, or can be registered in both the system and the ID card. The ID number 42 is a number assigned to the card or card holder. 43 is an issue date, 44 is a first and last name, 45 is a gender, 46 is a date of birth, and 47 is information indicating an area where an ID card holder can enter.

The variable information 50 is configured as follows. For example, the part that records when the ID card 17 is set in the card reader / writer is the access record 51, which records the date of access and where the card reader / writer was set. Reference numeral 52 denotes a rewriting date and time record of the face characteristic information, which records the date and time when the face information is rewritten. Reference numeral 53 denotes an error record, which records an error in inputting a personal identification number, an attempt to enter an area outside the area, and the like as an error record. Reference numeral 54 denotes a face characteristic information recording unit which records the registered face characteristics.

When a non-rewritable medium such as an optical card is used as the ID card, the latest information among the added information can be accessed. It goes without saying that the above information may be coded for error checking or encrypted to make it impossible for others to read. <Example of Operation of Passage Monitoring System of Present Embodiment> FIG.
It is a flowchart explaining a processing procedure of the passage monitoring system of the present embodiment. Hereinafter, the processing according to the present embodiment will be described with reference to FIGS.

First, when the ID card 17 is set in step S1, it is detected and the process proceeds to step S2. In step S2, the ID number is read from the ID card 17, and the process proceeds to step S3. In step S3, the ID is recorded on the ID card. It is checked whether the registered ID number is a registered ID number. If it is a registered ID number, the process proceeds to step S4. If it is not a registered ID number, the process proceeds to step S16 to sound an alarm.
Return the card and end the process. If necessary, the alarm status is transmitted to a predetermined place via the communication interface 12.

If the ID number is a registered ID number, the flow advances to step S4 to read face characteristic information 54 from the ID card. Here, this face feature information is set to X1. Next, proceeding to step S5, the face image of the ID card inserter is input by the camera 14, the face image is input by the CCD camera 14, and read through the camera interface 13. In the next step S6, feature extraction of the face image is performed from the face image read in step S5, and the obtained feature extraction result of the face image is set to X2.

The method of feature extraction used here is as follows.
Conventionally, a number of methods have been proposed and any of the methods implemented can be applied. For example, as the geometric feature extraction, there is one that geometrically captures the relationship between the eyes and the mouth. For processing the entire face, for example, a face is divided into several blocks, a matrix is created by KL expansion, and a predetermined operation is added (for example, as announced by the Electronic Research Laboratory, Ministry of International Trade and Industry). There is a method of using the characteristics of the matrix as feature information.

Next, in step S7, the access date and the location of the card reader / writer set in the access recording unit 51 of the ID card described with reference to FIG. 3 are recorded. In step S8, the face feature information indicated by the face feature information 54 read from the ID card in step S4 is compared with X1, and the feature extraction result of the face image obtained from the face image read from the CCD camera in step S6 is compared with X2. (In the present embodiment, a correlation is obtained). If the correlation is within a predetermined range, the user of the ID card is identified as the user, and the process proceeds to step S11. It is determined that the user of the card is not the user, and the process proceeds to step S9. Note that a typical example of the correlation is calculation of a distance.

If the process proceeds to step S9, it is determined that the user of the ID card is not the user himself, and an alarm is issued by the bell 21 shown in FIG. 1 and the communication interface 12 is sent to a predetermined place as necessary. Report status via. In the next step S10, an error is recorded in the error recording section 53 of the recording section 30 of the ID card 17 shown in FIG. Therefore, although not described in this flowchart, when an ID card in which an error is recorded in the recording unit 30 of the ID card 17 is used, error processing is performed at the beginning of the flowchart shown in FIG. It can also output to the printer PRT11, issue an alarm at the same time, or notify the status of the alarm to a predetermined location.

On the other hand, in step S11, face feature information X1 read from the ID card and in step S6 face feature information X2 extracted from the face image read from the CCD camera.
Are compared (in the present embodiment, a correlation (correlation) is obtained), and if the correlation is within a predetermined value ε, the process proceeds to step S12, and if not, the process proceeds to step S14.

In step S12, the face feature information X2 extracted from the face image read by the CCD camera is replaced with new face feature information for the X1 portion of the recording section on the ID card. That is, the information of X2 is written to X1. In the next step S13, the last recording date and time when the face feature information X1 of the ID card is rewritten is written. In the next step S14, since the ID card holder could be identified as the person in the previous step, the door is opened, and further in step S15
Sounds a buzzer to inform the door opening.

Finally, in step S17, the ID card is returned, and the process ends. Needless to say, if an error occurs, the ID card may not be returned. <Example of processing for inputting the personal identification number> Although the above description omits the input and verification of the personal identification number, the owner of the ID card 17 inputs the personal identification number via the personal identification number input unit 28 between steps S3 and S4. A personal identification number is input, and if the input personal identification number matches the registered personal identification number, the process proceeds to step S4. If the personal identification number is not registered, the step S4 is performed.
16 can be processed.

<Example of Judgment of Accessible Area> In addition, a step for checking whether or not the area exceeds the "accessible area" is provided between step S8 and step S11, so that the ID can be determined.
When the card holder attempts to enter an area beyond the "accessible area", the same processing as steps S9 and S10 is performed without proceeding to step S12 as processing for preventing entry. , Prohibiting entry into the area without opening the door, step S17
Is returned, and the process ends.

In the above description, the individual information is read out separately from the ID card 17, but all the information recorded in the recording section 30 of the ID card 17 is read at once, and then processed individually. It goes without saying that it is the same.

[0031]

As described above, according to the present invention,
It is possible to provide a person identification method and device for surely preventing plagiarism and the like, and a passage monitoring system. Furthermore, it is possible to provide a person identification method and apparatus for identifying a person at high speed without increasing the storage capacity of the system, and a passage monitoring system.

That is, when the facial feature information is extracted from the facial image input from the camera, the facial feature information is registered and recorded on the card, and when it is necessary to identify that the owner of the card is the person, The face of the card owner is input from the camera, the face feature information is extracted by a predetermined method, and the face feature information is compared with the face feature information recorded on the card. If the approximate value is within the range, the identity of the owner of the card is identified, making it difficult to steal the card. Furthermore, when the facial feature information is not registered in the system, the information is stored in the system. Since no burden is imposed, it is possible to construct a very light system, and even if facial feature information is stored in the system, the facial feature information requires an extremely small storage capacity compared to face image information. Memory of The larger is not increased.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration example of a passage monitoring system according to an embodiment;

FIG. 2 is a diagram showing a configuration example of an ID card 17;

FIG. 3 is a diagram showing an example of information included in a recording unit 30 of an ID card.

FIG. 4 is a flowchart illustrating a processing procedure of the passage monitoring system according to the present embodiment.

Claims (13)

[Claims] 1. When the characteristic information of the face recorded on the card is compared with the characteristic information extracted from the face image input from the camera, and it is determined that the characteristic information is an approximation within a predetermined range. And identifying the owner of the card. 2. Further, the entered personal identification number is compared with the personal identification number registered on the card and / or corresponding to the card, and when both the personal identification numbers match, the owner of the card The person identification method according to claim 1, wherein the person identification is performed. 3. A card reading means for reading characteristic information of a face recorded on a card, a characteristic information extracting means for extracting characteristic information from a face image input from a camera, a characteristic information and face image read from a card. It is characterized by further comprising: identification means for comparing the extracted feature information with each other, and determining that both of the feature information are approximations within a predetermined range as the owner of the card. Person identification device. 4. The identification means further compares the input personal identification number with the personal identification number registered on the card and / or corresponding to the card, and when both the personal identification numbers match, The personal identification device according to claim 3, wherein the personal identification device identifies the owner of the card. 5. A feature information replacing means for replacing the face feature information recorded on the card with the extracted feature information when the identifying means identifies the owner of the card. The person identifying device according to claim 3. 6. The feature information replacing means, when the face feature information recorded in the card is rewritten, further records the rewritten date and time on the card. Person identification device. 7. The person according to claim 3, wherein when the card reading means accesses the face feature information recorded on the card, the card reading means records the accessed location and the date and time on the card. Identification device. 8. A card in which at least facial characteristic information is recorded, a card reading unit for reading the facial characteristic information recorded in the card, and characteristic information extraction for extracting characteristic information from a face image input from a camera. Means and the characteristic information read from the card and the characteristic information extracted from the face image are compared with each other, and when it is determined that the two characteristic information are approximations within a predetermined range, it is the owner of the card. A passage monitoring system comprising: an identifying unit that identifies the owner and a passage permitting unit that permits the owner to pass through a predetermined place when the owner is identified. 9. The personal identification number registration means for registering a personal identification number on the card and / or corresponding to the card, and the personal identification number input means for inputting the personal identification number are further provided, and the identification means further inputs. The registered personal identification number is compared with the registered personal identification number, and when both characteristic information are approximate within a predetermined range and the personal identification numbers match, it is identified as the owner of the card. The passage monitoring system according to claim 8. 10. The recording unit of the card is magnetic recording, I
The passage monitoring system according to claim 8 or 9, wherein the passage monitoring system comprises a C memory, an optical memory, or a magneto-optical recording. 11. When the face image information recorded in the database is compared with the face image information input from the camera, and when it is determined that both information are approximations within a predetermined range,
A person identifying method, characterized in that the person is identified as the owner of the card. 12. The person identifying method according to claim 11, wherein the information is characteristic information extracted from a face image. 13. Further, the entered personal identification number is compared with the personal identification number registered on the card and / or corresponding to the card, and when both the personal identification numbers match, the owner of the card It is identified as being present.
The person identification method described in 2.