JP2013171476A - Portable back camera system for face recognition crime prevention and crime prevention determination method used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable back camera system for face recognition crime prevention for notifying a user of warning information of a suspicious person or the like before a crime occurs without making it necessary for the user himself or herself to make a determination even at a deserted street at night.SOLUTION: The portable back camera system for face recognition crime prevention includes: an infrared camera (10) for acquiring image information of the back part of a user; crime prevention determination means (20) for performing at least face recognition with respect to the image information acquired by the infrared camera; and notification means (30) for, when it is determined that the result of face recognition matches fixed conditions by the crime prevention determination means, transmitting warning information to the user.

Description

  The present invention relates to a portable face recognition crime prevention rear camera system and a crime prevention judgment method used therefor, and more particularly to discrimination of a suspicious person in a personal crime prevention system.

  The personal crime prevention system related to the present invention is a system that communicates an alarm or information after a crime occurs, or a system that takes action triggered by not passing a specific route. It also tends to be late to notice less popular suspicious people from behind in the dark.

  As a method of detecting a suspicious person from behind, a small surveillance camera is attached to the user's back or heel so that the back can be photographed. There is a method of displaying (see, for example, Patent Document 1).

JP 2004-236347 A

  However, in the personal crime prevention system related to the present invention, in the case of the first problem that the suspicious person cannot be noticed when approaching from behind, or in the case of the type that warns after the crime occurs, there is little traffic There is a second problem that it does not work in the dark.

  The first problem can be solved by using the method described in Patent Document 1, but the second problem cannot be solved, and the user himself / herself determines whether or not the person is a suspicious person. Must be done, and there is a possibility of misjudgment.

  In other words, there are many cases where crime occurs frequently in places where there is little traffic on the night road, and especially when pressed from behind, the possibility of getting involved in a crime increases if it is delayed.

  Therefore, the object of the present invention is to solve the above-mentioned problems and to notify the user of warning information such as a suspicious person before a crime occurs without making judgment by the user himself / herself even in a place where there is little traffic on the night road. An object of the present invention is to provide a portable face recognition crime prevention back camera system and a crime prevention judgment method used therefor.

A portable face recognition security rear camera system according to the present invention includes an infrared camera for acquiring image information behind a user,
Security judgment means for performing at least face recognition on image information acquired by the infrared camera;
And a notification means for transmitting warning information to the user when the crime prevention determination means determines that the result of the face recognition matches a certain condition.

The crime prevention judgment method according to the present invention comprises a portable face recognition security rear camera system comprising an infrared camera for acquiring image information behind the user, and a terminal device used by the user,
The terminal device is
Security judgment processing for performing at least face recognition on image information acquired by the infrared camera;
Notification processing for sending warning information to the user is executed when it is determined in the crime prevention determination processing that the result of the face recognition matches a certain condition.

  By adopting the above-described configuration and operation, the present invention notifies the user of warning information such as a suspicious person before a crime occurs without the user himself / herself making a judgment even in a busy place on the night road. The effect that it can do is acquired.

It is a block diagram which shows the structural example of the back camera system for portable face recognition crime prevention by embodiment of this invention. It is a block diagram which shows the structural example of the crime prevention judgment part of FIG. It is a block diagram which shows the structural example of the back camera system for portable face recognition crime prevention by other embodiment of this invention.

  Next, embodiments of the present invention will be described with reference to the drawings. First, the outline | summary of the crime prevention judgment method by this invention is demonstrated.

  The present invention is a security camera system in which a portable camera is installed on the back of an individual (user) and face recognition is performed on an image captured by the portable camera so that a suspicious person approaching from behind can be quickly detected. It is characterized by discovery.

  In the present invention, for example, a portable small camera (infrared camera) is installed on the back of a collar or hat of a user's clothes, and the image captured by the small camera (infrared camera) is fixed by face recognition or the like. If it is determined that there is a suspicious person in the background, a warning is issued to the user.

  As described above, in the present invention, since the portion that is a blind spot is tracked by a small camera (infrared camera), it can be predicted in advance for a suspicious person approaching from behind, which is effective for crime prevention.

  Further, in the present invention, a small camera (infrared camera) is directed to the back of the user, the back of the user is constantly monitored by the small camera (infrared camera), face recognition for the image of the small camera (infrared camera), etc. By notifying the user of the approach of the suspicious person in advance based on the result, it becomes easy to prevent crimes.

  FIG. 1 is a block diagram showing a configuration example of a portable face recognition security rear camera system according to an embodiment of the present invention. In FIG. 1, the portable face recognition security rear camera system according to the present embodiment includes a camera 10, a security judgment unit 20, and a notification unit 30.

  The camera 10 is a small camera for monitoring the back of the user, particularly an infrared camera. The crime prevention determination unit 20 performs face recognition or the like on the image information captured by the camera 10 and determines whether or not there is a suspicious person behind the user under certain conditions from the recognition result or the like. The notification unit 30 notifies the user or the like of the result determined by the crime prevention determination unit 20.

  Image information is input from the camera 10 to the crime prevention determination unit 20 at regular intervals. The crime prevention determination unit 20 performs face recognition on the image information, and a suspicious person approaches from the recognition result. If it is determined, a signal (suspicious person information) is sent to the notification unit 30 to notify the user or the security company.

  As for the camera 10, in consideration of use in a dark part, a camera capable of identifying up to the infrared region has improved performance, but even a general camera has a light function such as a street light or a portable camera. You may do it.

  FIG. 2 is a block diagram showing a configuration example of the crime prevention judgment unit 20 of FIG. In FIG. 2, the crime prevention judgment unit 20 includes a face recognition system 21, a face data comparison unit 22, a face database 23, a number determination unit 24, and an approach degree confirmation unit 25.

  The crime prevention judgment unit 20 analyzes the image information from the camera 10 by a face recognition system 21 at regular intervals, and the face data comparison unit 22 compares whether the image information is new image information based on the image information in the face database 23. In the case of new image information, the face database 23 is updated. In this case, the face data comparison unit 22 registers the approximate distance (determined from the size of the face), time, and the like in the face database 23 together with the face information.

  In the case of existing registration information, the face data comparison unit 22 selects image information with high definition, and updates the approximate distance, the difference in distance from the previous time, and the time. Even if the face data comparison unit 22 has been registered in the face database 23 and cannot be recognized from the image information, the image information registered in the face database 23 is left without updating the image information for a certain period of time. However, faces that cannot be found for a certain period of time are removed from the tracking target and the registration of the face database 23 is deleted.

  Next, the number determination unit 24 determines whether or not the number of persons registered in the newly updated face database 23 is greater than or equal to a certain number (about 2-3 persons) (that is, whether or not a certain condition is met). If there are more than a certain number of people, it waits for the input of the next face information.

  When the number determination unit 24 determines that the number of persons is equal to or less than a certain number, the degree-of-approach confirmation unit 25 confirms the degree of proximity (determined based on the size of the face) with the user of the target face. When the approach confirmation unit 25 confirms the rapid approach, the approach degree confirmation unit 25 sends a notification that there is a possibility of the suspicious person to approach, and sends notification information from the notification unit 30 to the user.

  The notification unit 30 is the simplest method of sounding an alarm. However, since it seems that the judgment of a suspicious person is often mistaken, only the user is notified of a vibrator or image information for warning by a mobile phone or the like. There is also a notification method.

  Thus, in this embodiment, since the camera 10 such as infrared rays is arranged behind the user's blind spot, it is possible to easily find the suspicious person approaching from behind the user. In other words, in the present embodiment, the warning information such as the suspicious person can be notified to the user before the occurrence of the crime without the user himself / herself making a judgment even in a place where there is little traffic on the night road.

  In the present embodiment, since the face is recognized from a bright stage, clear information on the suspicious person can be recorded. Furthermore, in this embodiment, face recognition or the like is performed on the image information from the camera 10 to determine the traffic situation and the brightness information can be used, so that the situation of the peripheral portion can be accurately determined. Can be judged.

  FIG. 3 is a block diagram showing a configuration example of a portable face recognition security rear camera system according to another embodiment of the present invention. In FIG. 3, the example of a structure of the notification part 30 of the back camera system for portable face recognition crime prevention by other embodiment of this invention is shown.

  The configuration of the portable face recognition security rear camera system according to another embodiment of the present invention is the same as the configuration of the portable face recognition security rear camera system according to the embodiment of the present invention shown in FIG. The notification unit 30 has a communication system 31.

  At the same time as the notification information, the communication system 31 notifies the security company (the security system 40), the police, and the like of the suspicious person's face photo, the location generated by GPS (Global Positioning System), and the like. In the security system 40 that has received the notification information, the face photo information of the suspicious person is collated with information in the previous person list 41, and the collation result is returned to the user. It is possible to protect the user (see FIG. 3).

  As described above, in the present embodiment, by providing the communication unit 31 to the notification unit 30, it is possible to perform safer crime prevention measures such as collation with the information in the previous person list 41 and the emergency of the guards. .

  As another embodiment of the present invention, the basic configuration is the same as that of the above-described embodiment of the present invention and the other embodiments of the present invention. Is provided.

  That is, according to another embodiment of the present invention, if a function that can connect an external camera for back (which is small and may be an infrared camera) to a mobile phone is added, the above operation is performed. This can be realized by incorporating software that performs the above.

  The present invention is basically used for single use as a security article. Further, the present invention can also conduct business as a personal security system of a security company by linking a communication function to a terminal used for single use. Furthermore, since most of the hardware is provided in the mobile phone, the present invention can be easily incorporated into the mobile phone as a part of the function.

DESCRIPTION OF SYMBOLS 10 Camera 20 Crime prevention judgment part 21 Face recognition system 22 Face data comparison part 23 Face database 24 Person number judgment part 25 Accessibility confirmation part 30 Notification part 31 Communication system 40 Security system 41 Precedent person list

Claims (8)

An infrared camera that obtains image information behind the user,
Security judgment means for performing at least face recognition on image information acquired by the infrared camera;
A portable face recognition crime prevention device comprising: a notification means for sending warning information to the user when the crime prevention judgment means judges that the result of the face recognition meets a certain condition Back camera system. The crime prevention judgment means includes at least a database for storing the image information, a face data comparison means for judging whether or not image information from the infrared camera is registered in the database, and a comparison result of the face data comparison means The number of people newly registered in the database based on the number of people determination means for determining whether or not it is less than or equal to the predetermined condition, and when the number of people determination means determines that the number of people is less than or equal to the certain condition An approach confirmation means for confirming the approach of the distance to the user of the target face,
Sending a notice to the notification means that there is a possibility of a suspicious person approaching when the approach confirmation means confirms a rapid approach, and sending the warning information from the notification means to the user. The back camera system for portable face recognition crime prevention according to claim 1 characterized by things.   3. The portable face recognition crime prevention back surface according to claim 1, wherein the notification unit notifies at least a suspicious person's face photograph and occurrence location information to the security system at the same time as the warning information. Camera system. The crime prevention judgment means and the notification means are arranged in a mobile phone,
4. The portable face recognition security rear camera system according to any one of claims 1 to 3, further comprising a function of connecting the infrared camera to the mobile phone. The portable face recognition security rear camera system includes an infrared camera for acquiring image information behind the user, and a terminal device used by the user,
The terminal device is
Security judgment processing for performing at least face recognition on image information acquired by the infrared camera;
A crime prevention determination method, comprising: performing a notification process of sending warning information to the user when it is determined in the crime prevention determination process that a result of the face recognition matches a certain condition. A database for storing at least the image information is arranged in the terminal device,
In the crime prevention determination process, the terminal device determines whether the image information from the infrared camera is registered in the database, and the database based on the comparison result of the face data comparison process A number determination process for determining whether or not the number of newly registered persons is less than or equal to the predetermined condition, and when the number of persons determination process determines that the number is less than or equal to the predetermined condition, Execute the proximity confirmation process to confirm the proximity of the distance to the user,
When a rapid approach is confirmed in the approach confirmation process, a notice that there is a possibility of approach of a suspicious person is sent to the notification process, and the warning information is sent to the user in the notification process The crime prevention judgment method according to claim 5, wherein:   The crime prevention judging method according to claim 5 or 6, wherein, in the notification process, at least a suspicious person's face photograph and occurrence location information are notified to the security system at the same time as the warning information. The terminal device is a mobile phone;
The mobile phone executes the crime prevention determination process and the notification process,
The crime prevention judgment method according to any one of claims 5 to 7, further comprising a function of connecting the infrared camera to the mobile phone.

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