KR20030062167A - search system with Metal detection and Face Recognition, Baggage search functions as one and so the operating method - Google Patents

Abstract

PURPOSE: A search system having a metal search function, a face recognition function, and a luggage search function and an operating method thereof are provided to detect persons corresponding to a blacklist or an illegal luggage by performing rapidly and correctly a search process for searching the metal, the blacklist, and the luggage. CONSTITUTION: A search system includes a control unit(1), a luggage search unit(2), an X-ray generation unit(3), an X-ray reception unit(4), a door-shaped detector(5), a camera(6), a video signal processing unit(7), a comparison and search portion(9), a magnetic force generation unit(10), a magnetic force reception unit(11), an alarm generation unit(12), a monitor(15), a key input unit(16), and a power supply unit(17). The control unit controls operations of each element. The luggage search unit searches contents of a luggage by using an X-ray. The X-ray generation unit generates the X-ray to the luggage. The X-ray reception unit converts the X-ray to an image signal. The door-shaped detector is installed at a gate. The camera is used for photographing a face of a passenger. The video signal processing unit converts a video signal of the camera to a digital signal. The comparison and search portion compares the photographed face with face data of a database(8). The magnetic force generation unit and the magnetic force reception unit form the magnetic line of force. The alarm generation unit generates an alarm signal. The monitor is used for outputting faces of persons included in a blacklist. The key input unit controls selectively the controlling operations of each element. The power supply unit supplies necessary power to the each element.

Description

Search system with Metal detection and Face Recognition, Baggage search functions as one and so the operating method}

The present invention relates to a search system used for checker / retrieval of an airport, such as an airport. In more detail, a person can be identified and identified in a short time by matching a person with a person who is stored in a database through face recognition. Combined with metal detection, face recognition, and baggage retrieval, which not only detects metallic objects such as firearms possessed by a potentially fictional criminal, but also detects dangerous goods contained in the passenger's baggage at once. It is about the system.

First, the present invention specifies that the invention is an improvement on the invention filed previously by the same applicant (application number; Patent 2002-1901).

In general, airports and various conference halls install metal detectors to detect metallic substances such as firearms and prohibit the introduction of dangerous materials. The metal detectors generally use a property in which magnetic lines generated are changed depending on the presence or absence of metallic substances. To detect firearms or other metal hazards.

Commonly used metal detectors are portable metal detectors, which are carried by police officers or security personnel to search for possession of metals, and door types that detect metals as they pass through a gate-type structure. Finder is widely used.

However, the above-described metal detector alone is difficult to detect plastic bombs, etc., which are not metallic materials, so it is difficult to prepare for a rapidly changing terror pattern. There was a burden to be done.

To this end, conventionally, a plurality of cameras installed in various places in a building are used to search out criminals mixed in the entrance or persons who are likely to be blacklisted by terrorists, military or police (hereinafter referred to as "criminalists"). The inspection and search were conducted in a form where the management personnel and the police officers, etc. arranged in the camera operating room directly contrasted the faces with the cautionist, but this was also the case that a person's face was not correctly identified. Since arrests are often carried out late, more fundamental precautions are needed.

In addition, since a large number of personnel had to be mobilized in order to inspect / search all the persons directly by the police officers or security personnel, the expenditure of the inspection / search is not only increased, but also it takes a long time. There was a problem that the check / search can not be done.

The present invention has been made to solve the above-described problems, and the face detection function when the front door is located in front of the door type detector installed in the passage by unifying the metal detection, face recognition, luggage search function in one system. Through this, not only can they quickly find out whether they match, but also secondarily, when the person passes through the door scanner, he or she will be able to read the presence or absence of a fictitious person who can cause a crime by rereading the possession of metallic materials. The purpose of the present invention is to provide a retrieval system that combines metal detection, face recognition, and baggage retrieval and its operation method, which enables the retrieval and extraction of dangerous goods through baggage at the same time.

1 is a perspective view showing a search system combining the present invention metal detection and face recognition, luggage search function according to an embodiment

2 is a block diagram showing the present invention search system

Figure 3 is a flow chart showing the operation of the present invention search system

<Explanation of symbols for the main parts of the drawings>

1: control unit 2: baggage detector

3: X-ray generator 4: X athlete

5: sentence search 6: camera

7: Image signal processor 8: Face database

9: comparison search unit 10: magnetic force generation unit

11: magnetic receiver 12: alarm generator

15: monitor 16: key input

17: power supply

According to the present invention for achieving the above object, a control unit for the overall control of each part of the system; A baggage detector provided on the passage to project X-rays onto the baggage to check the contents thereof; An X-ray generation unit installed at one side of the baggage searcher to generate X-rays to the baggage according to a control signal of the controller; An X player unit that receives the X-rays from the bag and converts the image signals; A door-type searcher installed adjacent to one side of the baggage searcher and configured to pass a person who has placed baggage on the baggage searcher; A camera installed at an upper portion of the door searcher and photographing a face of the person before the person passes through the door search; An image signal processor configured to receive the face image signal photographed from the camera and convert the face image signal into a digital form; A comparison search unit which compares / searches a face image signal of a person who is transmitted from the image signal processor with face data of an attention person previously stored in a face database to read a match; A magnetic force generating unit and a magnetic receiving unit for forming a constant magnetic force line in the inner space of the sentence detector according to the control signal of the controller; When the face image signal of the person from the comparison search unit is matched with one of the face data of the plurality of attentions stored in the face database, or when the voltage difference is detected between the magnetic force generating unit and the magnetic receiving unit, it is determined according to the control signal of the controller. An alarm generator for outputting an alarm signal through a speaker or a warning light; A monitor for visually outputting the operation state of the control unit and outputting the facet of the cautionary person matching the face association signal of the person from the comparison search unit together with the identification information; A key input unit for selectively adjusting a control operation of each unit by directly inputting a command to the control unit; There is provided a retrieval system incorporating a metal detection and face recognition function comprising a power supply for supplying power required for each part in the system.

Hereinafter, the present invention will be described in more detail with reference to FIGS. 1 to 3.

1 is an external perspective view showing a search system combining the present invention metal detection, face recognition, and baggage search function according to an embodiment, with reference to the drawings to examine the arrangement of the present invention search system according to an embodiment. Let's look at it.

First, a baggage detector 2 for projecting X-rays onto the baggage 300 to search for contents is provided at one side of a passageway through which an accessor, such as an airport, passes. As a belt conveyor 2a is installed on the baggage detector, The raised baggage 300 of the belt conveyor is moved along the belt conveyor 2a and the contents are searched.

In addition, a door type detector 5 is installed adjacent to the baggage detector 2 so as to detect a metallic material possessed by the person 200 when passing through the baggage detector 2, and the person 200 is located above the door type detector. The camera 6 is installed to photograph the face before passing through the sentence detector 5.

Here, the baggage claimer 2, the sentence searcher 5, and the camera 6 are connected to the personal computer 100 by means of a transmission and reception cable, respectively, so as to be directly controlled by a processor embedded in the personal computer. do.

At this time, the personal computer 100 may be provided with a plurality of monitors 15 so as to output the processing status for each data transmitted from the luggage searcher 2, the sentence searcher 5, and the camera 6. However, in order to minimize the space in which the retrieval system is installed, only one monitor 15 is provided in the personal computer 100 so that the data transmitted from each baggage scanner 2, the sentence detector 5, and the camera 6 are stored. It is preferable to configure so that the situation to be processed is alternately output on the monitor 15.

In addition, the personal computer 100 further includes a key input unit 16 so that the management personnel 400 seated in front of the monitor directly inputs a command to the personal computer 100 through the key input unit 16. 100) to control and manage.

On the other hand, with reference to the accompanying Figure 2 look at in more detail the configuration according to an embodiment of the present invention search system as follows.

First, Figure 2 is a block diagram showing the present invention search system, the present invention system includes a control unit (1) for overall control of each part; A baggage detector 2 driven by a belt conveyor 2a; An X-ray generator (3) for projecting X-rays onto the baggage (300) placed on the baggage finder (2) according to the control signal of the controller (1); An X player unit 4 for receiving the X-rays projected from the X-ray generating unit and converting the X-rays into an image signal for monitoring the X-rays; A door-type searcher (5) installed on the passage to allow the passenger (200) to place the luggage on the baggage search machine (2); A camera 6 installed at the upper part of the door searcher to photograph the person's face before the visitor 200 passes through the door search; An image signal processor (7) which receives the face image signal photographed from the camera and converts the face image signal into a digital form; A comparison retrieval unit (9) which compares / searches the face image signal of the person (200) transmitted from the image signal processing unit with the face data of the attention person previously stored in the face database (8) and reads out a match; A magnetic force generating unit 10 and a magnetic receiving unit 11 for forming a predetermined magnetic line in the inner space of the sentence detector 5 according to the control signal of the controller 1; The face image signal of the visitor from the comparison search unit 9 matches one of the face data of the plurality of cautions stored in the face database 8 or the change of the magnetic line between the magnetic force generating unit 10 and the magnetic receiving unit 11. An alarm generator 12 outputting an alarm signal through a speaker 13 or a warning lamp 14 according to a control signal of the controller 1 when a voltage difference is detected; A monitor for visually outputting the operation state of the control unit 1 and outputting the face data of the attention person matching the face association signal of the person 200 from the comparison search unit 9 and outputting the same together with the identity information. 15); A key input unit 16 for selectively adjusting a control operation of each part of the system by directly inputting a command to the control unit 1; It is composed of a power supply unit 17 for supplying power required for each part in the system.

Here, the video signal processing unit 7 is preferably configured by employing a digital video recorder (DVR), which is widely used today, which is used by the DVR for a quick data matching process of the controller 1. This is because it is a suitable device.

The DVR is a next-generation video storage device that converts an analog video signal input through the camera 6 into a digital signal and compresses and records and reproduces the video according to a video compression method (MPEG). Unlike other recording tapes, it is possible to record for a long time, and it is easy to search and edit recorded video.

Furthermore, the DVR can be easily installed on the PCI bus of the general PC to convert the general PC into the DVR, or can be additionally installed in various forms, such as being operated based on a separate motherboard that independently performs the function of a personal computer. This is excellent.

Hereinafter, the operation method according to the configuration of the present invention search system as follows.

3 is a flow chart showing an operation process of the present invention search system. First, when the accessor 200 is located in front of the door searcher 5, the camera 6 installed on the upper door searcher is located in the accessor 200. Photographing the face (S100); A step in which the image signal processing unit 7 receives a face association signal of the person 200 photographed by the camera and converts it into a digital form (S110); The face image signal converted by the image signal processor 7 is compared / searched by the comparison search unit 9 with the face data stored in the face database 8 according to the control of the controller 1 to determine whether or not it matches. Reading (S120); When the comparison search unit 9 reads that the face image signal of the person 200 and the person's face data of the face database 8 coincide with each other, the alarm generator 12 operates to generate a speaker 13 or a warning lamp. Outputting an alarm signal through step 14 (S130); the face recognition process (P1) and

Thereafter, when the person 200 passes the sentence detector 5 and the metallic material is detected, the controller 1 controls the voltage difference generated by the change of the magnetic lines between the magnetic force generating unit 10 and the magnetic receiving unit 11. Sensing (S140); In this step, when the control unit 1 detects a voltage difference, the alarm generating unit 12 is operated to output an alarm signal through the speaker 13 or the warning lamp 14 (S150); P2),

At the same time as the metal detection process (P2), the step of placing the baggage (300) carried by the person 200 when passing through the door search (5) to the baggage searcher (S160); The management agent 400 directly monitors the inside of the baggage 300 while the passenger 200 passes the door-type scanner 5 to the baggage baggage loaded on the baggage checker, and directly reads whether or not there is dangerous goods. (S170); consists of a luggage search process (P3) carried out.

Here, when the comparison search unit 6 reads that the face image signal of the person 200 is matched with one of the person's face data previously stored in the face database 8, the person of the matched person on the monitor 12 is read. Photographs and identity information is output together to make it easy for the management personnel 400 and police officers to perform the inspection / search to identify the identity of the person 200.

Face Recognition Technology (FRT) cited above is a technology that has been recently applied in various fields due to the rapid advance of technology, and numerous faces stored in the face database 5 due to the development of high performance equipment and search engines. The process of matching and reading the data critical can be completed in seconds.

In addition, the face recognition technology, unlike fingerprint recognition, palm recognition, iris recognition, vein recognition, etc. has the advantage of distinguishing and identifying a person through a remotely installed camera 6 without touching a part of the body to the mechanical device.

Accordingly, the present invention retrieval system stores the face image signal of the person 200 captured by the camera 6 in the face database 8 before the person passes through the sentence detector 5 in consideration of the general walking speed of the person. It would be desirable to match the subject's face data to complete the reading.

In general, the time required for such a matching process may vary depending on the processing capability of the controller 1, but in general, the time will be further delayed depending on the number of face data of the attention person input to the face database 8. At this time, the installation angle of the camera 6 or by using a human body sensor should be adjusted so as to capture the person from the far distance in front of the door-type detector (5).

Therefore, the present invention search system can be quickly installed and inspected for a large number of people by simply installing in a passage with many people such as airports, conference halls, stadiums, police stations, public offices, and the like, The person's face image signal can be further stored in the face database 8 to be used to prevent potential criminal acts that may occur later.

In addition, a single management agent 400 can operate all the operations of the entire search system through the key input unit 16, and also when the person's attention is found, the person's photo and identity information automatically pop up on the monitor 15 ( Pop up) so that a number of security personnel or police officers are mobilized as in the prior art, so there is no need to confirm the identity of the person directly.

Therefore, in today's major public offices, it is inconvenient to check the identity every time a non-worker in the public, but when using the present invention system can not only identify the identity of the visitor in a few seconds, but also once identification The accessor is additionally stored on the face database, and afterwards, identification is very easy, and effective access control can be performed.

On the other hand, another operation method of the system according to the face recognition in the search system of the present invention is to store the face data of a plurality of accessibility in the face database (8) to compare the face image signal of the accessor 9 If the comparison search unit 9 reads that the face image signal of the person 200 and the person's face data do not match, the alarm generation unit compares / searches with the face data. (9) can be configured to operate to output the alarm signal through the speaker 10 or the warning light (11).

This is a form suitable for conducting a check / search in a research institute with a limited number of access persons, thereby reducing the load of performing the matching process of the face database 8 so that a quick check / search operation can be performed.

In addition, the X-ray generated from the X-ray generating unit 3 in the baggage detector 2 is projected to the opposite X player unit 4 through the baggage 300, in which the X player unit X is projected through the baggage. Form an image signal to read the contents of the baggage 300 by a line and transmits the image signal to the control unit 1, accordingly, the management personnel 400 seated in front of the monitor 15 is a door-type searcher While passing through (5), it is directly checked whether the baggage 300 which the occupant possessed contains dangerous goods.

Therefore, the above processes (P1, P2, P3) are all made while the person passes through the sentence detector at the normal walking speed, so the delay caused by the person's inspection / search on the entrance or passage during the inspection / search is not generated. You can do a thorough search without having to.

The present invention combines the metal detection, face recognition and luggage search function to find out the suspects who are likely to be criminals for a large number of people, and secondly carry the dangerous goods through the presence of metallic dangerous substances and luggage It is possible to search for images in advance, so that the user can quickly and accurately search without delay. Also, once a face is captured, the face image signal is automatically stored in the face database so that the user does not need to identify each time during the search. Search is possible.

In addition, not only can the number of officers or security personnel used in the inspection and retrieval work and the number of management personnel according to system management be reduced, but also the security of other security areas can be strengthened, and the search system must be installed independently of each other. It is very effective because it can reduce installation space and greatly reduce expenses by integrating into one.

Claims (5)

A control unit which collectively controls each unit of the system; A baggage detector installed on the aisle to project X-rays onto the baggage to check its contents, An X-ray generating unit installed at one side of the baggage detector and generating X-rays with baggage according to a control signal of a controller; An Xtj receiver for converting an image signal when the X-ray is projected from the baggage; A door-type searcher installed adjacent to one side of the baggage searcher and configured to pass a person who has placed baggage on the baggage searcher; A camera installed at an upper portion of the door searcher and photographing a face of the person before the person passes through the door search; An image signal processor configured to receive the face image signal photographed from the camera and convert the face image signal into a digital form; A comparison search unit which compares / searches a face image signal of a person who is transmitted from the image signal processor with face data of an attention person previously stored in a face database to read a match; A magnetic force generating unit and a magnetic receiving unit for forming a constant magnetic force line in the inner space of the sentence detector according to the control signal of the controller; When the face image signal of the person from the comparison search unit is matched with one of the face data of the plurality of attentions stored in the face database, or when the voltage difference is detected between the magnetic force generating unit and the magnetic receiving unit, it is determined according to the control signal of the controller. An alarm generator for outputting an alarm signal through a speaker or a warning light; A monitor for visually outputting the operation state of the control unit and outputting the facet of the cautionary person matching the face association signal of the person from the comparison search unit together with the identification information; A key input unit for selectively adjusting a control operation of each unit by directly inputting a command to the control unit; Retrieval system combined with metal detection and facial recognition function comprising a power supply for supplying the power required for each part in the system. The method of claim 1, The video signal processing unit combines a metal detection and face recognition function, characterized in that by employing a digital video recorder (DVR). Photographing a face of an accessor by a camera installed at an upper portion of the door searcher when the accessor is located in front of the door searcher; Converting the image of the person's face photographed by the camera into a digital form by receiving an image signal processor; Comparing and searching the face image signal converted by the image signal processor with face data of a plurality of subjects stored in a face database under a control of a controller to read a match; And when the comparison search unit reads that one of the face image signal of the person and the person's face data of the face database match, an alarm generator operates to output an alarm signal through a speaker or a warning lamp. , Thereafter, when the person passes through the sentence detector, if the metallic material is detected, the controller detects the voltage difference generated according to the change of the magnetic lines between the magnetic force generating portion and the magnetic receiving portion; In the step, if the control unit detects a voltage difference, the alarm generator is activated to output an alarm signal through a speaker or a warning lamp; Simultaneously placing the baggage possessed by the visitor when passing through the door detector in the baggage detector; The management personnel directly monitor the inside of the baggage while the passengers pass through the door-type checker for the baggage placed on the baggage checker to read whether the dangerous goods are directly carried out. And a method of operating a search system that combines face recognition functions. The method of claim 3, wherein When the comparison search unit reads the coincidence of the face image signal of the person and the face data of the attention person previously stored in the face database, the matching image and the face information of the attention person is characterized in that it is output on the monitor Operation method of search system combining metal detection and face recognition. The method of claim 3, wherein The face data is stored in the face database and the face image signal of the accessor is compared / retrieved by the comparison search unit with the face data of the accessible person, and the match is read. If one of the face data of the reading does not match, the alarm generator is activated to output an alarm signal through the speaker or beacon, characterized in that the operation of the detection system with a metal detection and face recognition function.