WO2018117398A1

WO2018117398A1 - Vehicle security method and system using iris recognition in combination with facial recognition

Info

Publication number: WO2018117398A1
Application number: PCT/KR2017/012247
Authority: WO
Inventors: 박상현
Original assignee: 전자부품연구원
Priority date: 2016-12-19
Filing date: 2017-11-01
Publication date: 2018-06-28
Also published as: KR101909345B1; KR20180071046A

Abstract

A vehicle security method and a system using iris recognition in combination with facial recognition are provided. A vehicle security method according to an embodiment of the present invention obtains first biometric information of a driver so as to authenticate the driver, permits the driver to start a vehicle if the authentication is successful, and obtains second biometric information of the driver after starting the vehicle so as to authenticate the driver. As a result, optimisation of vehicle security can be achieved by using iris information of a driver in combination with facial information and by providing an adequate level of security depending on the state of a vehicle.

Description

Vehicle security method and system using a combination of iris and face recognition

The present invention relates to vehicle security technology, and more particularly, to a vehicle security method and system for limiting the use of malicious vehicles, such as vehicle theft, driver abduction.

1 is a view provided to explain the security technique by iris recognition. As shown in FIG. 1, after extracting the iris of a person using a camera and performing normalization, data is encoded and generated / stored in the DB for authentication, and authentication is possible using this.

Iris recognition-based authentication has the advantage of being accurate, but it is only possible at close distance, so it cannot be recognized while driving the vehicle, which is only meaningful as a limited security measure.

Therefore, while using the iris recognition, which is an accurate authentication technology, it is necessary to supplement it to be suitable for vehicle driver authentication.

The present invention has been made to solve the above problems, an object of the present invention, by using a combination of the iris information and face information of the driver, a vehicle security method for performing an appropriate level of security according to the vehicle situation and In providing a system.

According to an embodiment of the present invention, a vehicle security method includes: a first obtaining step of obtaining first biometric information of a driver; A first authentication step of authenticating the driver using the obtained first biometric information; If authentication is successful, authorizing the vehicle to start up; A second acquiring step of acquiring second biometric information of the driver after starting the vehicle; And a second authentication step of authenticating the driver using the second biometric information acquired in the second obtaining step.

The second acquiring step and the second authentication step may be performed periodically.

A third acquiring step of acquiring first biometric information of the driver if authentication fails in the second authentication step; And a third authentication step of authenticating the driver using the first biometric information acquired in the third obtaining step.

The third acquiring step may further include requesting a driver to input the first biometric information when authentication fails in the second authentication step.

The requesting step can be performed when the vehicle is stopped.

The vehicle security method according to the present invention may further include setting to stop periodically performing the second acquisition step and the second authentication step when the authentication is successful in the third authentication step.

In the setting step, if the road state determined from the driving information of the vehicle is a specific state, the setting operation may be set to stop periodically performing the second obtaining step and the second authentication step.

A third obtaining step of obtaining second biometric information of the driver before starting the vehicle; And a third authentication step of authenticating the driver by using the acquired second biometric information, wherein the start permission step may be regarded as successful if authentication is successful in both the first authentication step and the third authentication step. Can be.

The first biometric information may be iris information, and the second biometric information may be face information.

On the other hand, according to another embodiment of the present invention, a vehicle security system includes a processor for obtaining the first biometric information and the second biometric information of the driver; An authentication unit configured to perform driver authentication using the first biometric information acquired before starting the vehicle and to perform driver authentication using the second biometric information obtained after starting the vehicle; And, if the driver authentication using the first biometric information acquired before starting the vehicle is successful, the controller permitting the starting of the vehicle.

On the other hand, the vehicle security method according to another embodiment of the present invention comprises a first authentication step of authenticating the driver using the first biometric information of the driver; If authentication is successful, authorizing the vehicle to start up; And a second authentication step of authenticating the driver using the second biometric information of the driver after the vehicle is started.

Meanwhile, according to another embodiment of the present invention, the vehicle security system authenticates the driver using the first biometric information of the driver before starting the vehicle and authenticates the driver using the second biometric information of the driver after starting the vehicle. Authentication unit; And a controller configured to permit starting of the vehicle when the driver authentication using the first biometric information of the driver is successful.

As described above, according to the embodiments of the present invention, by using the iris information and the face information of the driver in combination, an appropriate level of security can be performed according to the vehicle situation, thereby optimizing the vehicle security.

1 is a view provided for the description of the security technique by iris recognition,

2 is a view provided to explain a concept of a vehicle security method, according to an embodiment of the present invention;

3 is a block diagram of a vehicle security system, in accordance with another embodiment of the present invention;

4 is a flowchart provided in the description of a vehicle security method according to an embodiment of the present invention, and

5 is a view provided to explain a driving vehicle security method according to another embodiment of the present invention.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

2 is a diagram provided to explain a concept of a vehicle security method according to an embodiment of the present invention. In the vehicle security method according to an embodiment of the present invention, the vehicle security is enhanced by using a combination of iris recognition and face recognition.

Specifically, iris information, which is one of the driver's biometric information, is registered, and iris recognition-based driver authentication is performed. 2 shows the driver's iris information registration and driver authentication using the same.

As shown in the upper part of FIG. 2, iris information is obtained by extracting an eye region from a face image and then extracting an iris to encode data. The obtained iris information is stored and registered after being encrypted, and then used for driver authentication.

Driver authentication based on iris recognition is used for the Ignition On process. In other words, only when the driver authentication through iris recognition is successful, the vehicle is started by the driver.

In addition, in the vehicle security method according to an embodiment of the present invention, the facial feature information, which is another one of the driver's biometric information, is registered and face recognition-based driver authentication is performed. In the lower part of FIG. 2, the driver's facial feature information registration and driver authentication using the same are shown.

As shown in the lower part of FIG. 2, face information is obtained by extracting features from a face image and encoding data. The acquired face information is also stored and registered after being encrypted, and then used for driver authentication.

Driver recognition by face recognition is done periodically while driving. If driver authentication fails through face recognition, it is treated as a vehicle theft or driver abduction.

Iris recognition is possible only when the driver is close to the eyes of the camera. Since such behavior is impossible while driving, face recognition is applied to the periodic authentication while driving the vehicle.

On the other hand, driver authentication based on face recognition is a vehicle security means for a case where a vehicle is stolen or a driver is kidnapped while the vehicle is not turned off. This is because when the driver is changed due to vehicle theft or kidnapping while the vehicle is turned off, the vehicle is secured without starting by iris recognition based authentication.

3 is a block diagram of a vehicle security system, in accordance with another embodiment of the present invention. As shown in FIG. 3, the vehicle security system according to an exemplary embodiment of the present invention includes a camera 110, an image processing unit 120, an authentication unit 130, a DB 140, and a vehicle control unit 150. do.

The camera 110 is installed inside the vehicle and photographs the driver's face to generate a face image. Shooting for face recognition is possible at a distance of about 50-60 cm, that is, while driving, but shooting for iris recognition is possible only at a short distance, which is inappropriate while driving.

The image processor 120 processes the face image generated by the camera 110 to extract face information and iris information.

The authentication unit 130 compares the face information and iris information extracted by the image processing unit 120 with the face information and iris information registered in the DB 140 to determine whether the driver is a registered valid driver and perform driver authentication. do.

In addition, during the face / iris registration process, the authentication unit 130 encrypts the face information and the iris information extracted by the image processing unit 120 and registers them in the DB 140.

The vehicle controller 150 limits the vehicle running based on the authentication result of the authenticator 130. In detail, the vehicle controller 150 may prevent the vehicle from starting when the user authentication fails.

In addition, when user authentication fails while driving the vehicle, the vehicle controller 150 may limit the driving of the vehicle to a certain speed or less, or may propagate a message for notifying that the theft or driver abduction has occurred to the police station.

On the other hand, in consideration of safety, the speed limit is preferably set to the minimum speed of the road currently running.

A vehicle security process by the vehicle security system shown in FIG. 3 will be described in more detail with reference to FIG. 4. 4 is a flowchart provided to explain a vehicle security method according to an embodiment of the present invention.

As shown in FIG. 4, first, when there is a vehicle start-on operation (S210-Y), the camera 110 generates a face image by photographing a driver's face, and the image processor 120 generates an iris from the face image. Information is extracted (S220).

Next, the authentication unit 130 compares the iris information extracted in step S220 with the iris information registered in the DB 140, and performs driver authentication (S230).

If the driver authentication is successful (S230-Y), the vehicle controller 150 transmits a vehicle start signal to the vehicle network so that the vehicle is started on (S240).

On the other hand, if the driver authentication fails (S230-N), the vehicle controller 150 does not transmit the vehicle start signal to the vehicle network and controls the vehicle not to be started (S250).

Thereafter, the camera 110 generates a face image by photographing the face of the driver while driving the vehicle, and the image processor 120 extracts face information from the face image (S260). Then, the authentication unit 130 compares the face information extracted in step S260 with the face information registered in the DB 140, and performs a driver authentication procedure (S270).

Steps S260 and S270 are periodically performed while driving the vehicle. The driver authentication process S270 while driving the vehicle will be described in detail with reference to FIG. 5. 5 is a view provided to explain a driving vehicle security method according to another embodiment of the present invention.

As shown in FIG. 5, if the face information extracted in step S260 does not match the face information registered in the DB 140 and driver authentication fails (S271-Y), the vehicle controller 150 may adjust the vehicle driving speed. Limit to the minimum speed of the road currently running (S272).

Thereafter, when the vehicle stops (S273-Y), the vehicle controller 150 requests the driver to input iris information through a screen or a voice of the electronic device (S274). Stopping of the vehicle may be made by the driver's intention of recognizing the intersection signal or the speed limit setting.

Accordingly, the user approaches the face to the camera 110, the camera 110 photographs the driver's face to generate a face image, and the image processor 120 extracts iris information from the face image (S275).

In addition, the authentication unit 130 compares the iris information extracted in step S275 with the iris information registered in the DB 140, and performs driver authentication (S276).

If the driver authentication is successful (S276-Y), the vehicle control unit 150 releases the vehicle speed limit in step S272 (S277).

In addition, the vehicle controller 150 may be configured to stop driver authentication based on face recognition while driving the vehicle, that is, not to perform driver authentication even when the authentication period does not arrive.

On the other hand, in determining the periodic authentication exclusion while driving the vehicle, it is possible to further consider the road condition. For example, periodic authentication during driving of a vehicle may be excluded only when it is determined that the driver authentication fails despite being a legitimate driver due to poor accuracy of face recognition due to driving on a dirt road. The road condition may be determined by analyzing driving information of the vehicle.

On the other hand, if the driver authentication fails even by the Hong Jae (S276-N), the vehicle controller 150 may continue to limit the vehicle speed in step S272 or limit the vehicle running itself (S278).

Up to now, a preferred embodiment of the vehicle security method and system using a combination of iris recognition and face recognition has been described in detail.

In the above embodiment, it is assumed that only the iris recognition-based authentication is performed at the start permission, but modification is possible. For example, it can be implemented to start only when both iris-based authentication and face-based authentication succeed.

On the other hand, the technical idea of the present invention can be applied to a computer-readable recording medium containing a computer program for performing the functions of the apparatus and method according to the present embodiment. In addition, the technical idea according to various embodiments of the present disclosure may be implemented in the form of computer readable codes recorded on a computer readable recording medium. The computer-readable recording medium can be any data storage device that can be read by a computer and can store data. For example, the computer-readable recording medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical disk, a hard disk drive, or the like. In addition, the computer-readable code or program stored in the computer-readable recording medium may be transmitted through a network connected between the computers.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims

A first obtaining step of obtaining first biometric information of the driver;

A first authentication step of authenticating the driver using the obtained first biometric information;

If authentication is successful, authorizing the vehicle to start up;

A second acquiring step of acquiring second biometric information of the driver after starting the vehicle; And

And a second authentication step of authenticating the driver using the second biometric information acquired in the second obtaining step.
The method according to claim 1,

The second acquisition step and the second authentication step,

Vehicle security method, characterized in that performed periodically.
The method according to claim 2,

A third acquiring step of acquiring first biometric information of the driver if authentication fails in the second authentication step;

And a third authentication step of authenticating the driver using the first biometric information acquired in the third obtaining step.
The method according to claim 3,

The third acquisition step,

And if the authentication fails in the second authentication step, requesting the driver to input the first biometric information.
The method according to claim 4,

The request phase is

Vehicle security method, characterized in that performed when the vehicle is stopped.
The method according to claim 3,

And if the authentication is successful in the third authentication step, setting to stop periodically performing the second acquisition step and the second authentication step.
The method according to claim 6,

The setting step is

And if the road state determined from the driving information of the vehicle is a specific state, set to stop periodic performance of the second obtaining step and the second authentication step.
The method according to claim 1,

A third obtaining step of obtaining second biometric information of the driver before starting the vehicle;

And a third authentication step of authenticating the driver using the obtained second biometric information.

The boot permission step is

If the authentication is successful in both the first authentication step and the third authentication step, the vehicle security method characterized in that it is treated as successful.
The method according to claim 1,

The first biometric information is iris information,

The second biometric information is facial information.
A processor obtaining first biometric information and second biometric information of a driver;

An authentication unit configured to perform driver authentication using the first biometric information acquired before starting the vehicle and to perform driver authentication using the second biometric information obtained after starting the vehicle;

And a controller configured to permit starting of the vehicle when the driver authentication using the first biometric information acquired before starting of the vehicle is successful.
A first authentication step of authenticating the driver using the first biometric information of the driver;

If authentication is successful, authorizing the vehicle to start up; And

And a second authentication step of authenticating the driver by using the second biometric information of the driver after the vehicle is started.
An authentication unit for authenticating the driver using the first biometric information of the driver before starting the vehicle and authenticating the driver using the second biometric information of the driver after starting the vehicle; And

And a controller configured to permit starting of the vehicle when the driver authentication using the first biometric information of the driver is successful.