KR20180031240A - Mobile terminal and method for controlling the same - Google Patents

Abstract

The present invention relates to a mobile terminal and a method for controlling the mobile terminal. The mobile terminal comprises: a memory which stores iris templates including iris pattern information of a user; a camera which senses an image of a part of a face including the user′s eyes; a display unit which displays the sensed image; and a control unit which determines, when the image of a part of the face is sensed, whether the sensed image satisfies preset pre-authentication requirements, displays, when the sensed image does not satisfy at least one of the pre-authentication requirements as the detection result, at least one graphic object guiding the user to take a specific action on the display, verifies forgery for the sensed image on the basis of whether the user takes the specific action, and blocks iris recognition from the sensed image in accordance with the verification result, or performs iris recognition on the basis of an iris pattern detected from the sensed image and the iris template information.

Description

[0001] MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME [0002]

The present invention relates to a mobile terminal and a control method of the mobile terminal.

A terminal can be divided into a mobile / portable terminal and a stationary terminal depending on whether the terminal is movable or not. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions according to the development of technology. For example, it is implemented in the form of a multimedia device having a combination of functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game, and broadcasting. Further, the present terminal may perform a function of a smart wallet or a credit card capable of performing a cash settlement function. Also, information necessary for performing such a payment function may be stored in the terminal.

Therefore, the importance of terminal security becomes important every day. This is because, in the case of losing a terminal, important information such as user's information for settlement and personal information of the user stored in the terminal can be leaked to others in addition to losing an expensive terminal. Therefore, currently, there are active researches to increase the security so that the user terminal can not be used by others.

Meanwhile, as an example of such a study, there may be an authentication method for authenticating a user based on a recognition result of a user's iris. However, in the authentication method using the iris recognition, the user is authenticated according to the result of comparing the iris of the user detected from the eye image of the user sensed by the camera with the previously stored iris template information. Therefore, the current iris recognition is easily performed by using a fake iris image created using a photograph of a user who has been photographed beforehand, or by modulating the iris template information used for the iris recognition, .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and other problems, and it is an object of the present invention to provide a mobile terminal capable of preventing falsification or modulation by detecting in advance whether or not falsification or modulation occurred during the iris recognition process, And a control method of the mobile terminal.

It is another object of the present invention to provide a method and apparatus for detecting irregularities or irregularities in information used for iris recognition, And a control method of the mobile terminal.

According to an aspect of the present invention, there is provided a mobile terminal including a memory for storing iris template information including iris pattern information of a user, And a display unit for displaying the sensed image. When the sensed image is sensed, it is detected whether or not the sensed image satisfies predetermined pre-authentication requirements And displaying at least one graphic object on the display unit guiding the user to perform a specific action if the sensed image does not satisfy at least one of the pre-authentication requirements as a result of the detection, A verification unit for verifying whether or not the sensed image is falsified based on whether the user performs the specific action, And a controller for blocking iris recognition from the sensed image according to the verification result or performing iris recognition based on the iris pattern detected from the sensed image and the iris template information.

In one embodiment, the control unit guides the user through the graphic object so that the user performs any one of a plurality of different predetermined actions based on the one of the unsatisfied pre-authentication requirements, And verifies whether or not the sensed image is falsified based on whether a user performed any one of the actions.

In one embodiment, the pre-authentication requirements differ from each other in a predetermined importance level, and the control unit is configured to determine, based on the importance of the unsatisfied pre-authentication requirement among the pre-authentication requirements, And determines one action.

In one embodiment, the plurality of predetermined actions are characterized by blinking eyes, movement of a line of sight, alteration of a face area sensed by the camera, and a change in distance between the camera and the face of the user .

In one embodiment, the control unit may allow the user to perform a plurality of behaviors corresponding to the combination of the unsatisfied pre-authentication requirements among the plurality of different predetermined behaviors when the unsatisfied pre- The user is guided through a plurality of graphic objects so as to perform sequential operations, and whether or not the sensed image is falsified is verified according to whether the user has performed all of the plurality of behaviors.

In one embodiment, the pre-authentication requirements include authentication requirements that are determined according to a result of analyzing a user's habits from images sensed for the iris recognition for a predetermined period of time.

In one embodiment, the controller verifies whether or not the sensed image is falsified based on whether the user performs the specific action within a predetermined time limit, And displays the image in one area on the display unit.

In one embodiment, when the image of a part of the face is sensed, the control unit compares a time value preset in the iris template information with a system tick corresponding to the iris template information, Wherein the systematic value corresponding to the iris template information further includes a time value of the time at which the iris template information is generated from the time information stored for each event generated in the mobile terminal . ≪ / RTI >

According to an aspect of the present invention, there is provided a method of controlling a mobile terminal, including the steps of sensing an image of a part of a face including an eye part of a user, Determining whether the sensed image meets at least one of the pre-authentication requirements, and if the sensed image does not satisfy at least one of the pre-authentication requirements, guiding the user to perform a specific action The method of claim 1, further comprising: displaying at least one graphic object; verifying whether or not the sensed image is falsified based on whether the user performs the specific action; The iris pattern detected from the sensed image, and the previously stored iris template information, And it characterized by including the step of performing iris recognition.

In one embodiment, the verifying step comprises: checking a time value set in the iris template information; detecting a system tick value corresponding to the iris template from a system tick value of the mobile terminal; Comparing the time value preset in the iris template information with a systematic value corresponding to the iris template information, and detecting whether the iris template information is falsified according to the comparison result Wherein the step of intercepting the iris recognition or performing the iris recognition comprises the steps of determining whether or not the current sensing is performed based on both the result of verifying whether the sensed image is falsified or the result of detecting whether the image is falsified with respect to the iris template information, And the iris recognition is interrupted or the iris recognition is performed.

Effects of the mobile terminal and the control method according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, before the iris recognition is performed, the presence or absence of falsification or modulation of the image or pre-stored template information sensed for the iris recognition through the pre- Or irregularity of the iris recognition security function by the modulation can be prevented.

According to at least one of the embodiments of the present invention, the present invention can detect whether the user is falsified or altered by using the result of analyzing the habit when the user senses the image for the iris recognition, It is possible to detect the forgery or the modulation even without requiring an authentication process.

According to at least one of the embodiments of the present invention, the present invention further provides a method and apparatus for performing an iris recognition process in accordance with the type and number of authentication requirements that are inconsistent with the image sensed for iris recognition, The verification method and the number of verification times are different from each other, so that verification for detecting the falsification or modulation can be prevented from being performed uniformly.

1A is a block diagram illustrating a mobile terminal according to the present invention.
1B and 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions.
2 is a flowchart illustrating a process in which a pre-authentication and an additional verification are performed on an image sensed for iris recognition before an iris recognition is performed in order to detect an external phase and modulation in a mobile terminal according to an embodiment of the present invention .
FIG. 3A is an exemplary view showing examples of predetermined pre-authentication requirements in a mobile terminal according to an embodiment of the present invention and examples of a verification process performed when either of the pre-authentication requirements is not satisfied.
FIG. 3B is an exemplary diagram illustrating examples of verification procedures performed in a mobile terminal according to an embodiment of the present invention when a plurality of pre-authentication requirements are not satisfied. FIG.
FIG. 4 is a flowchart illustrating an operation of verifying pre-stored iris template information before performing iris recognition in order to detect an internal position and modulation in a mobile terminal according to an embodiment of the present invention.
5 is a diagram illustrating an example in which user authentication is performed through iris recognition in a mobile terminal according to an exemplary embodiment of the present invention.
FIGS. 6A, 6B and 6C are illustrations showing examples in which, in a mobile terminal according to an embodiment of the present invention, different additional verification is performed when at least one pre-authentication requirement is not satisfied.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or similar elements are denoted by the same or similar reference numerals, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device (e.g., a smart watch, a glass glass, a head mounted display (HMD), etc.) .

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, .

1 is a block diagram for explaining a mobile terminal 100 according to the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, ), And the like. The components shown in FIG. 1 are not essential for implementing the mobile terminal 100, so that the mobile terminal 100 described herein can have more or fewer components than the components listed above have.

The wireless communication unit 110 may be connected between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and another mobile terminal or between the mobile terminal 100 and an external server, And may include one or more modules that enable wireless communication. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114, and a location information module 115 .

The input unit 120 includes a camera 121 or an image input unit for inputting a video signal, a microphone 122 for inputting an audio signal, an audio input unit, a user input unit 123 for receiving information from a user A touch key, a mechanical key, and the like). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The sensing unit 140 may include at least one sensor for sensing at least one of information in the mobile terminal 100, surrounding environment information surrounding the mobile terminal 100, and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor, A microphone 226, a battery gauge, an environmental sensor (for example, a barometer, a hygrometer, a thermometer, a radiation detection sensor, A thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in the present specification can combine and utilize information sensed by at least two of the sensors.

The output unit 150 includes at least one of a display unit 151, an acoustic output unit 152, a haptic tip module 153, and a light output unit 154 to generate an output related to visual, auditory, can do. The display unit 151 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications running on the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Also, at least a part of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions (e.g., telephone call receiving function, message receiving function, and calling function) of the mobile terminal 100. The application program may be stored in the memory 170 and installed on the mobile terminal 100 and may be operated by the control unit 180 to perform the operation (or function) of the mobile terminal 100.

In addition to the operations related to the application program, the control unit 180 typically controls the overall operation of the mobile terminal 100. The control unit 180 may process or process signals, data, information, and the like input or output through the above-mentioned components, or may drive an application program stored in the memory 170 to provide or process appropriate information or functions to the user.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 1A in order to drive an application program stored in the memory 170. FIG. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power to the components included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be an internal battery or a replaceable battery.

At least some of the above components may operate in cooperation with each other to implement a method of operation, control, or control of the mobile terminal 100 according to various embodiments described below. In addition, the operation, control, or control method of the mobile terminal 100 may be implemented on the mobile terminal by driving at least one application program stored in the memory 170.

Hereinafter, the components listed above will be described in more detail with reference to FIG. 1 before explaining various embodiments implemented through the mobile terminal 100 as described above.

First, referring to the wireless communication unit 110, the broadcast receiving module 111 of the wireless communication unit 110 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

The mobile communication module 112 may be a mobile communication module or a mobile communication module such as a mobile communication module or a mobile communication module that uses technology standards or a communication method (e.g., Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution And an external terminal, or a server on a mobile communication network established according to a long term evolution (AR), a long term evolution (AR), or the like.

The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. The wireless Internet module 113 is configured to transmit and receive a wireless signal in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, wireless LAN (WLAN), wireless fidelity (Wi-Fi), wireless fidelity (Wi-Fi) Direct, DLNA (Digital Living Network Alliance), WiBro Interoperability for Microwave Access, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A) 113 transmit and receive data according to at least one wireless Internet technology, including Internet technologies not listed above.

The wireless Internet module 113 for performing a wireless Internet connection through the mobile communication network can be used for wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE or LTE- May be understood as a kind of the mobile communication module 112.

The short-range communication module 114 is for short-range communication, and includes Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB) (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology. The short-range communication module 114 may communicate with the mobile terminal 100 and the wireless communication system through the wireless area networks, between the mobile terminal 100 and another mobile terminal, And may support wireless communication between the network where the mobile terminal (or the external server) is located. The short-range wireless communication network may be a short-range wireless personal area network.

Here, another mobile terminal may be a wearable device (e.g., a smart watch, smart smart, etc.) capable of exchanging data with the mobile terminal 100 according to the present invention glass, HMD (head mounted display)). The short range communication module 114 may detect (or recognize) a wearable device capable of communicating with the mobile terminal 100 around the mobile terminal 100. [ If the detected wearable device is a device authenticated to communicate with the mobile terminal 100 according to the present invention, the control unit 180 may transmit at least a part of the data processed by the mobile terminal 100 to the short- 114 to the wearable device. Therefore, the user of the wearable device can use the data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a telephone is received in the mobile terminal 100, the user performs a telephone conversation via the wearable device, or when a message is received in the mobile terminal 100, It is possible to check the message.

The position information module 115 is a module for obtaining the position (or current position) of the mobile terminal 100, and representative examples thereof include a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal 100 utilizes the GPS module, it can acquire the position of the mobile terminal 100 using a signal transmitted from the GPS satellite. As another example, when the mobile terminal 100 utilizes the Wi-Fi module, the location of the mobile terminal 100 is determined based on the information of the wireless AP (wireless access point) transmitting or receiving the wireless signal with the Wi- Can be obtained. Optionally, the location information module 115 may replace or, in addition, perform at least one of the other modules of the wireless communication unit 110 to obtain data regarding the location of the mobile terminal 100. The position information module 115 is a module used for obtaining the position (or the current position) of the mobile terminal 100, and is not limited to a module for directly calculating or acquiring the position of the mobile terminal 100. [

Next, the input unit 120 is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For inputting image information, Or a plurality of cameras 121 may be provided. The camera 121 processes an image frame such as a still image or moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. [ A plurality of cameras 121 provided in the mobile terminal 100 may be arranged to have a matrix structure and various angles or foci may be provided to the mobile terminal 100 through the camera 121 having the matrix structure A plurality of pieces of image information can be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure so as to acquire a left image and a right image for realizing a stereoscopic image.

The microphone 122 processes the external acoustic signal into electrical voice data. The processed voice data can be utilized variously according to a function (or a running application program) being executed in the mobile terminal 100. Meanwhile, the microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 123 is for receiving information from a user and when the information is inputted through the user input unit 123, the control unit 180 can control the operation of the mobile terminal 100 to correspond to the input information . The user input unit 123 may include a mechanical input means (or a mechanical key such as a button located on the front, rear or side of the mobile terminal 100, a dome switch, a jog wheel, Jog switches, etc.) and touch-type input means. For example, the touch-type input means may comprise a virtual key, a soft key or a visual key displayed on the touch screen through software processing, And a touch key disposed on the touch panel. Meanwhile, the virtual key or the visual key can be displayed on a touch screen having various forms, for example, a graphic, a text, an icon, a video, As shown in FIG.

Meanwhile, the sensing unit 140 senses at least one of information in the mobile terminal 100, surrounding environment information surrounding the mobile terminal 100, and user information, and generates a corresponding sensing signal. The control unit 180 may control the driving or operation of the mobile terminal 100 or may perform data processing, function or operation related to the application program installed in the mobile terminal 100 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit 140 will be described in more detail.

First, the proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface, or the presence of an object in the vicinity of the detection surface, without mechanical contact by using electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in the inner region of the mobile terminal 100 wrapped by the touch screen as described above or in proximity to the touch screen.

Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is electrostatic, the proximity sensor 141 can be configured to detect the proximity of the object with a change of the electric field along the proximity of the object having conductivity. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of explanation, the act of recognizing that the object is located on the touch screen in proximity with no object touching the touch screen is referred to as "proximity touch & The act of actually touching an object on the screen is called a "contact touch. &Quot; The position at which the object is closely touched on the touch screen means a position where the object corresponds to the touch screen vertically when the object is touched. The proximity sensor 141 can detect a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, have. Meanwhile, the control unit 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern sensed through the proximity sensor 141 as described above, and further provides visual information corresponding to the processed data It can be output on the touch screen. Furthermore, the control unit 180 can control the mobile terminal 100 such that different operations or data (or information) are processed according to whether the touch to the same point on the touch screen is a proximity touch or a touch touch .

The touch sensor senses a touch (or touch input) applied to the touch screen (or the display unit 151) by using at least one of various touch methods such as a resistance film type, a capacitive type, an infrared type, an ultrasonic type, do.

For example, the touch sensor may be configured to convert a change in a pressure applied to a specific portion of the touch screen or a capacitance generated at a specific portion into an electrical input signal. The touch sensor may be configured to detect a position, an area, a pressure at the time of touch, a capacitance at the time of touch, and the like where a touch object touching the touch screen is touched on the touch sensor. Here, the touch object may be a finger, a touch pen, a stylus pen, a pointer, or the like as an object to which a touch is applied to the touch sensor.

Thus, when there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like. Here, the touch controller may be a separate component from the control unit 180, and may be the control unit 180 itself.

On the other hand, the control unit 180 may perform different controls or perform the same control according to the type of the touch object touching the touch screen (or a touch key provided on the touch screen). Whether to perform different controls or to perform the same control according to the type of the touch object may be determined according to the current state of the mobile terminal 100 or an application program being executed.

On the other hand, the touch sensors and the proximity sensors discussed above can be used independently or in combination to provide a short touch (touch), a long touch, a multi touch, a drag touch ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, and the like. Touch can be sensed.

The ultrasonic sensor can recognize the position information of the object to be sensed by using ultrasonic waves. Meanwhile, the controller 180 can calculate the position of the wave generating source through the information sensed by the optical sensor and the plurality of ultrasonic sensors. The position of the wave source can be calculated using the fact that the light is much faster than the ultrasonic wave, that is, the time when the light reaches the optical sensor is much faster than the time the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generating source can be calculated using the time difference with the time when the ultrasonic wave reaches the reference signal.

The camera 121 includes at least one of a camera sensor (for example, a CCD, a CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.

The camera 121 and the laser sensor may be combined with each other to sense a touch of the sensing object with respect to the three-dimensional stereoscopic image. The photosensor may be laminated to the display element, which is configured to scan the movement of the object proximate the touch screen. More specifically, the photosensor mounts photo diodes and TRs (Transistors) in a row / column and scans the contents loaded on the photosensor using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor performs coordinate calculation of the object to be sensed according to the amount of change of light, and position information of the object to be sensed can be obtained through the calculation.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

In addition, the display unit 151 may be configured as a stereoscopic display unit for displaying a stereoscopic image.

In the stereoscopic display unit, a three-dimensional display system such as a stereoscopic system (glasses system), an autostereoscopic system (no-glasses system), and a projection system (holographic system) can be applied.

The sound output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output unit 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output unit 152 may include a receiver, a speaker, a buzzer, and the like.

The haptic module 153 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 153 may be vibration. The intensity and pattern of the vibration generated in the haptic module 153 can be controlled by the user's selection or the setting of the control unit. For example, the haptic module 153 may synthesize and output different vibrations or sequentially output the vibrations.

In addition to vibration, the haptic module 153 includes a pin arrangement vertically moving with respect to the contacted skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, contact of an electrode, And various effects of tactile effect such as effect of reproducing the cold sensation using the heat absorbing or heatable element can be generated.

The haptic module 153 can transmit the tactile effect through the direct contact, and the tactile effect can be felt by the user through the muscles of the finger or arm. The haptic module 153 may include two or more haptic modules 153 according to the configuration of the mobile terminal 100.

The light output unit 154 outputs a signal for notifying the occurrence of an event using the light of the light source of the mobile terminal 100. Examples of events that occur in the mobile terminal 100 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

The signal output by the optical output unit 154 is implemented as the mobile terminal 100 emits light of a single color or a plurality of colors to the front or rear surface. The signal output may be terminated when the mobile terminal 100 detects an event confirmation of the user.

The interface unit 160 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data in the mobile terminal 100 to an external device. For example, a port for connecting a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, an audio I / O port, a video I / O port, an earphone port, and the like may be included in the interface unit 160.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM) A universal subscriber identity module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the mobile terminal 100 through the interface unit 160. [

When the mobile terminal 100 is connected to an external cradle, the interface unit 160 may be a path through which power from the cradle is supplied to the mobile terminal 100, May be a channel through which various command signals transmitted to the mobile terminal 100 may be transmitted. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The memory 170 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 170 may store data related to vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 170 may be a flash memory type, a hard disk type, a solid state disk type, an SDD type (Silicon Disk Drive type), a multimedia card micro type ), Card type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read memory, a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs the storage function of the memory 170 on the Internet.

Meanwhile, as described above, the control unit 180 controls the operations related to the application program and the general operation of the mobile terminal 100. [ For example, when the state of the mobile terminal 100 satisfies a set condition, the controller 180 may execute or release a lock state for restricting input of a user's control command to applications.

In addition, the control unit 180 performs control and processing related to voice communication, data communication, video call, or the like, or performs pattern recognition processing to recognize handwriting input or drawing input performed on the touch screen as characters and images, respectively . Further, the controller 180 may control any one or a plurality of the above-described components in order to implement various embodiments described below on the mobile terminal 100 according to the present invention.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components. The power supply unit 190 includes a battery, the battery may be an internal battery configured to be chargeable, and may be detachably coupled to the terminal body for charging or the like.

In addition, the power supply unit 190 may include a connection port, and the connection port may be configured as an example of the interface 160 in which an external charger for supplying power for charging the battery is electrically connected.

As another example, the power supply unit 190 may be configured to charge the battery in a wireless manner without using the connection port. In this case, the power supply unit 190 may use at least one of an inductive coupling method based on a magnetic induction phenomenon from an external wireless power transmission apparatus and a magnetic resonance coupling method based on an electromagnetic resonance phenomenon Power can be delivered.

In the following, various embodiments may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

Hereinafter, a structure of a mobile terminal 100 or a terminal in which the above-described components are disposed will be described with reference to FIGS. 1B and 1C, according to an embodiment of the present invention shown in FIG. 1A.

Referring to FIGS. 1B and 1C, the disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto and can be applied to various structures such as a folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . The following discussion will be related to a particular type of mobile terminal, but a description of a particular type of mobile terminal is generally applicable to other types of mobile terminals.

Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, and the like) that forms an appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may also be mounted on the rear case 102. Electronic parts that can be mounted on the rear case 102 include detachable batteries, an identification module, a memory card, and the like. In this case, a rear cover 103 for covering the mounted electronic components can be detachably coupled to the rear case 102. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside.

As shown, when the rear cover 103 is coupled to the rear case 102, a side portion of the rear case 102 can be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the engagement. Meanwhile, the rear cover 103 may be provided with an opening for exposing the camera 121b and the sound output unit 152b to the outside.

These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a unibody mobile terminal 100 in which synthetic resin or metal is connected from the side to the rear side can be realized.

Meanwhile, the mobile terminal 100 may include a waterproof unit (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, And a waterproof member for sealing the inside space of the oven.

The mobile terminal 100 is provided with a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, Cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, an interface unit 160, and the like.

1B and 1C, a display unit 151, a first sound output unit 152a, a proximity sensor 141, an illuminance sensor 142, an optical output unit (not shown) A second operation unit 123b, a microphone 122 and an interface unit 160 are disposed on a side surface of the terminal body, And a mobile terminal 100 having a second sound output unit 152b and a second camera 121b disposed on a rear surface thereof.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side surface of the terminal body rather than the rear surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, a 3D display, and an e-ink display.

In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from each other or disposed integrally with one another, or may be disposed on different surfaces, respectively.

The display unit 151 may include a touch sensor that senses a touch with respect to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.

The touch sensor may be a film having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or may be a metal wire . Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

In this way, the display unit 151 can form a touch screen together with the touch sensor. In this case, the touch screen can function as a user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be implemented as a loud speaker for outputting various alarm sounds or multimedia playback sounds. ). ≪ / RTI >

The window 151a of the display unit 151 may be provided with an acoustic hole for emitting the sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made more simple because the hole formed independently for the apparent acoustic output is hidden or hidden.

The optical output unit 154 is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The control unit 180 may control the light output unit 154 to terminate the light output when the event confirmation of the user is detected.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in the photographing mode or the video communication mode. The processed image frame can be displayed on the display unit 151 and can be stored in the memory 170. [

The first and second operation units 123a and 123b may be collectively referred to as a manipulating portion as an example of a user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 have. The first and second operation units 123a and 123b can be employed in any manner as long as the user is in a tactile manner such as touch, push, scroll, or the like. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates the apparatus without touching the user through a proximity touch, a hovering touch, or the like.

In this figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key, or a combination of a touch key and a touch key.

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives a command from the first or second sound output unit 152a or 152b The size of the sound, and the change of the display unit 151 to the touch recognition mode.

On the other hand, a rear input unit (not shown) may be provided on the rear surface of the terminal body as another example of the user input unit 123. The rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, commands such as power on / off, start, end, scrolling, and the like, the size adjustment of the sound output from the first and second sound output units 152a and 152b, And the like can be inputted. The rear input unit may be implemented as a touch input, a push input, or a combination thereof.

The rear input unit may be disposed so as to overlap with the front display unit 151 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body such that when the user holds the terminal body with one hand, the rear input unit can be easily operated using the index finger. However, the present invention is not limited thereto, and the position of the rear input unit may be changed.

When a rear input unit is provided on the rear surface of the terminal body, a new type of user interface using the rear input unit can be realized. When the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive the user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.

The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

And a second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an 'array camera'. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode in a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module 111 (see FIG. 1A) may be configured to be able to be drawn out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 built in the terminal body or detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

The rear cover 103 is configured to be coupled to the rear case 102 so as to cover the battery 191 to restrict the release of the battery 191 and to protect the battery 191 from external impact and foreign matter . When the battery 191 is detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory that protects the appearance or supports or expands the function of the mobile terminal 100. [ One example of such an accessory is a cover or pouch that covers or accommodates at least one side of the mobile terminal 100. The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for aiding or extending touch input to the touch screen.

Hereinafter, embodiments related to a control method that can be implemented in the mobile terminal 100 configured as above will be described with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

First, the controller 180 of the mobile terminal 100 according to an embodiment of the present invention can perform iris recognition through a user's image sensed through the camera 121. [ Here, the iris recognition includes an iris part image extracted from the eye image of the user sensed by the camera 121 and a circular iris pattern information raised near the inner iris (or concert) , And based on a result of comparing previously stored template information. If the comparison result indicates that the image of the iris portion extracted from the currently sensed eye image and the template information are similar to each other by a predetermined level or more, the controller 180 determines that the user who sensed the current eye image is a user corresponding to the pre- It can be recognized as a user, that is, an authenticated user.

If the user who senses the eye image through the iris authentication is recognized as the authenticated user, the control unit 180 can perform the predetermined function. For example, the predetermined function may be a function of releasing the locked state of the mobile terminal 100. Here, the locked state means that at least one of the functions available in the mobile terminal 100 according to the embodiment of the present invention is restricted. For example, when the control command reception is restricted by the user, It may mean. The control unit 180 of the mobile terminal 100 according to the embodiment of the present invention releases the locked state of the mobile terminal 100 through the iris recognition so that a user who is not a pre- The mobile terminal 100 may be disabled.

On the other hand, the preset function may mean a function of executing a specific application or entering a state in which a screen related to an executed application is displayed on the display unit 151. Alternatively, the predetermined function may be a function associated with information related to a user's privacy such as a user's personal information such as a telephone number or a message stored in the mobile terminal 100, have. That is, the control unit 180 of the mobile terminal 100 according to the embodiment of the present invention allows only the user authenticated through the iris recognition to display or output the preset specific information through the display unit 151 , Or the like, to access the preset specific information.

On the other hand, the authentication method using iris recognition can have high security by using biometric information of a user like an iris image of a user. However, such a security function of the iris recognition method may be applied to a case in which an image sensed for iris recognition is falsified or modulated, for example, a snow image of a user photographed in advance, or a snow image is photographed using a lens in which a user's iris pattern is implanted . Hereinafter, modulation of the image sensed by the camera for iris recognition will be referred to as external forgery.

The present invention is to prevent the iris recognition function from being disabled by such external forgery. When the eye image is sensed for the iris recognition, it is possible to detect whether the sensed image is a counterfeit image first. To this end, the present invention sets at least one authentication requirement according to the result of analyzing a user's habit of sensing an eye image for iris recognition or information for determining whether an actual eye image has been captured, Before the iris recognition is performed from the image, it may be determined in advance whether the sensed image meets the set at least one authentication requirement. Hereinafter, the process of determining whether the sensed eye image is a counterfeit image when the user's eye image is sensed is referred to as pre-authentication.

FIG. 2 illustrates an operation of performing pre-authentication before iris recognition when the iris recognition is performed in the mobile terminal 100 according to the embodiment of the present invention.

The control unit 180 of the mobile terminal 100 according to the embodiment of the present invention may display the screen information for guiding the iris recognition according to the input of the user on the display unit 151. [ For example, when the mobile terminal 100 is in the locked state, the control unit 180 may start the iris recognition function for releasing the locked state when a user's input on the display unit 151 or a specific key is detected have. Alternatively, the control unit 180 may start the iris recognition function when the user selects the output of predetermined specific information such as a telephone directory or previously stored picture information, or receives an application related to the specific information.

When the iris recognition function is started as described above, the controller 180 can activate any one of the cameras and sense the image information through the activated camera. And display a part of the sensed image information on the display unit 151 in the form of a preview image. More preferably, the activated camera may be a camera provided on one surface of the mobile terminal 100 on which the display unit 151 is formed, that is, a first camera 121a.

On the other hand, the controller 180 may display a graphic object related to the iris recognition function on at least a part of the display unit 151. Here, the graphic object related to the iris recognition function may be for guiding the user so that the image for the iris recognition can be correctly sensed. That is, the control unit 180 displays at least one graphical object of a circular shape, and selects a user's face region of the user's face displayed through the preview image so that the user's eye region is aligned within the circular graphic object .

When the iris recognition function is started and the camera 121 is activated for the iris recognition, the controller 180 may sense the image including the eye of the user from the activated camera 121 (S200 ). The controller 180 analyzes the sensed image according to at least one authentication requirement, and determines whether the sensed image is a forged image (S202).

Here, the authentication requirement may be set according to a result of analyzing a habit of a user sensing the image for iris recognition. For example, such a habit may include whether the user uses both eyes for the iris recognition, only one eye image, or whether the user wears glasses or a lens and performs iris recognition.

Meanwhile, the controller 180 may analyze the habit of the user who senses his or her face image to perform iris recognition for a predetermined period after the initial iris recognition is set, according to predetermined requirements. Here, the predetermined requirements may be variously set as described above, including the number of eye images (monocular or binocular) used by the user for the iris recognition, or whether the user wears glasses or lenses. Based on the analyzed result, the user's habit of performing iris recognition can be learned.

Meanwhile, the authentication requirement may further include at least one requirement for determining the external forgery in addition to the analysis of the user's habits.

For example, the controller 180 may recognize a portion of the face of the user included in the sensed image, that is, the eye portion of the image sensed for the iris recognition. The partial face recognition may be performed based on partial faces extracted from images sensed for iris recognition for a predetermined period, that is, feature points extracted from the eye portion. For example, the feature points may include a distance between a user's eyes, an outline of the eye part, a feature of a shape of a user's eye or an eyebrow, a shape and size of an eye area between the eyelids, .

The control unit 180 may perform the partial face recognition by comparing the extracted feature points with the feature points extracted from the currently sensed eye image. According to the recognition result of the part of the face, it is possible to detect whether or not the currently sensed image is a part of the face of the authenticated user. Accordingly, the controller 180 may include whether the part of the face included in the sensed image is recognizable as the authentication requirement.

Meanwhile, the control unit 180 may further perform a paper pattern analysis for analyzing the frequency characteristics detected from the iris of the currently sensed image. According to the result of the paper pattern analysis, it is possible to detect whether the currently sensed image is an image sensed from an actual human eye or a sensed image from a model or a printed matter. Accordingly, the control unit 180 may further include whether the sensed image is an image sensed from an actual human eye as the authentication requirement.

In this paper pattern analysis, an image extracted from an iris region of a sensed image is converted into a frequency domain using an FFT (Fast Fourier Transform) or the like, It may mean a method of determining whether the image is sensed from a human eye or a sensed image from a model or printed matter. In this case, an image sensed from an actual human eye may appear as a single high-frequency or low-frequency signal in the frequency domain. However, in the case of a printed matter or a model eye, a dot of a colored color is represented by a frequency, Lt; RTI ID = 0.0 > a < / RTI > Therefore, by using the paper pattern analysis, it is possible to judge whether or not the currently sensed image is the image photographed from the actual human eye.

Meanwhile, the controller 180 may analyze the eye image of the user currently sensed according to each of the plurality of authentication requirements including the authentication requirements set in accordance with the user's habit in step S202. Then, it is determined whether the current sensed eye image satisfies the authentication requirements of step S202 (S204).

If the result of the analysis of the eye image of the user sensed in step S200 matches the habit of the user analyzed up to now and satisfies all other authentication requirements, The control unit 180 may determine that the currently sensed eye image is an eye image in which no external forgery is detected.

Then, the control unit 180 extracts the iris region from the currently sensed image, and performs iris recognition by comparing the iris pattern detected from the extracted region with previously stored iris template information. Then, the predetermined function can be performed according to the result of performing the iris recognition (S206). That is, the control unit 180 may execute a function requested by the user before releasing the iris recognition function, that is, a function of releasing the locked state of the mobile terminal 100 or an application related to predetermined specific information. Or the content of the folder containing the specific information or the specific information may be output before the iris recognition function is performed according to the iris recognition result.

If it is determined in step S204 that the predetermined authentication requirements are not satisfied, the controller 180 may detect that the user's behavior of sensing the image for iris recognition is different from the habits of the existing user. Alternatively, the control unit 180 may determine that the feature points detected from a part of the face of the currently recognized image are not recognized, or that the frequency characteristics analyzed from the eye image of the currently sensed user are not a predetermined frequency characteristic (for example, And the frequency characteristics of the image obtained by the image sensing apparatus 100 are different from each other by a predetermined level or more, the reliability of the currently sensed eye image may be determined to be low.

If it is determined that the user's habitual behavior is changed or the reliability of the sensed eye image is low, the control unit 180 may determine that the currently sensed image is likely to be falsified. Accordingly, the control unit 180 may perform at least one verification to verify whether the currently sensed image is sensed by a real user or an actual user (S208). Such verification can be performed by inducing a user to perform a specific action and detecting whether the user performs the specific action according to the derivation.

On the other hand, the verification can be determined according to the currently unacceptable authentication requirement. That is, when the frequency characteristic of the currently sensed eye image is compared with the pre-stored frequency characteristic, the controller 180 determines that the currently sensed image is a sensed image from a real person Such as blinking of the eyes, as part of the process. In addition, it is possible to verify whether the currently sensed image is a sensed image based on whether blinking of the eyes is sensed or not.

 Alternatively, when the feature point extracted from the face included in the currently sensed image and the previously stored facial feature point are different from each other by a predetermined level or more, the controller 180 may perform facial recognition through the entire face of the user have. That is, the verification process is not performed in any predetermined process, but a specific verification process corresponding to the unsatisfied authentication requirement among the predetermined authentication requirements may be performed as a result of the analysis in step S202.

Meanwhile, the verification process may be performed more than once. For example, if the plurality of authentication requirements are not satisfied as a result of the analysis in step S202, the controller 180 may perform a plurality of verifications corresponding to the unsatisfied authentication requirements. In this case, the verification may be performed in different manners.

For example, as a result of analyzing the image currently sensed in step S202, the controller 180 determines that the feature points extracted from a part of the face included in the sensed image are different from the facial feature points of the user, , The frequency characteristic analyzed from the sensed image may be different from the frequency characteristic of the image sensed from the human eye to a predetermined level or more. In this case, the controller 180 may perform face recognition through the entire face of the user (facial recognition verification) as part of the first verification process. In addition, the controller 180 may request the user to blink an eye as a part of the second verification process, and may detect whether the blinking of the eye is blinking according to the request (eye flicker verification). The first and second verification processes may be sequentially performed according to a predetermined order, and the verification process may be started after the verification process is completed through a preceding verification process.

On the other hand, the plurality of verification processes may correspond to each of the unsatisfied authentication requirements among the predetermined authentication requirements, as described above. Alternatively, the plurality of verification processes may be determined according to the combination of the authentication requirements that are not satisfied as a result of the analysis in step S202. That is, when the plurality of authentication requirements are not satisfied, the control unit 180 may sequentially perform a plurality of different verification processes corresponding to the combination in accordance with the predetermined order.

As described above, in the mobile terminal 100 according to the embodiment of the present invention, when the authentication requirements of the pre-authentication performed before performing the iris recognition and the currently sensed image do not satisfy at least one of the authentication requirements An example of further verification processes will be described in more detail with reference to FIGS. 3A and 3B.

Meanwhile, if verification according to the unsatisfied authentication requirements is performed in step S208, the controller 180 may determine whether the currently sensed image is an externally falsified image according to the verification result (S210). That is, the controller 180 may determine that the user currently performing the iris recognition function is not a predetermined user according to the result of performing the entire face recognition. In this case, the controller 180 may determine that the currently sensed image is an externally falsified image.

Then, the control unit 180 may output error information indicating that the external forgery is detected (S212). In this case, the control unit 180 may terminate the iris recognition function currently being executed before recognizing the iris from the sensed image. That is, when external forgery is detected, the controller 180 may terminate the iris recognition function before comparing the currently sensed image iris pattern with previously stored iris template information.

Meanwhile, when the user's reaction corresponding to the verification requested in step S208 is not detected, the controller 180 may determine that the currently sensed image is falsified. For example, if the blinking of the user is not detected within a preset time, the control unit 180 may determine that the currently sensed image is falsified. In step S212, error information is output, and the iris recognition function currently being executed can be terminated before recognizing the iris from the currently sensed image. Accordingly, the present invention can prevent the iris recognition security function from being falsified due to external falsification.

3A, on the other hand, in the mobile terminal 100 according to the embodiment of the present invention, examples of predetermined pre-authentication requirements and examples of the verification process performed when either of the pre-authentication requirements are not satisfied Fig.

As described above, the present invention has described that the result of analyzing the habits of the user analyzed together when the iris recognition is performed for a predetermined time can be used as the pre-authentication requirement. In addition to the analysis of the user's habits, the pre-authentication requirement may also include at least one requirement for determining the external forgery. In the following description, as a pre-authentication requirement according to the analysis result of the user's habits, an analysis is made on the number of eyes the user uses for iris recognition, whether or not the user wears glasses, Is used as an example.

For this, the controller 180 may detect features corresponding to the pre-authentication requirement from the image that is sensed at the iris recognition for a certain period of time after the first iris recognition is performed. The control unit 180 can analyze the habit of the user sensing the image for the iris recognition function based on the detected features. That is, the control unit 180 compares the number of times the user uses both eyes and the number of times that only one eye is used at the time of the iris recognition, and detects whether the user uses both eyes or only one eye at the time of iris recognition . It is also possible to detect glasses or lenses from the sensed image and detect whether the user performs iris recognition while wearing glasses or iris recognition when the lens is worn. The elements of each user's habit detected for the predetermined time, that is, the number of eyes detected by the user, the wearing of glasses, or the wearing of the lenses can be analyzed as a habit of the user in performing iris recognition.

As described above, the present invention may further include at least one requirement for determining the external forgery in addition to the analysis result of the user's habits. In the following description, the requirement for determining whether the currently sensed image is a part of the user's face and whether or not the currently sensed image is a sensed image from an actual human eye . Here, whether or not the current sensed image is a part of the user's face may be obtained through partial face recognition of the currently sensed image, and whether the currently sensed image is a sensed image from a human eye may be determined based on current sensing Can be done through paper pattern analysis on images. Accordingly, in the following description, as requirements for pre-authentication, the requirements according to the habit of the user, that is, the number of detected eyes, the wearing of glasses and the wearing of the lens, the partial face recognition and the paper pattern analysis result on the currently sensed image As pre-authentication requirements.

3A, when the image is sensed for the iris recognition function, the controller 180 of the mobile terminal 100 according to the embodiment of the present invention performs the partial face recognition, the eye number detection, Detection of wear of glasses, detection of wear of lenses, and analysis of paper patterns.

For example, in the case of partial face recognition, the controller 180 can perform partial face recognition from the sensed image. That is, the controller 180 can extract facial feature points from the currently sensed image, and compare the extracted facial feature points with previously analyzed user data. The user's analyzed data may be data obtained by analyzing the user's habits and facial features for a predetermined period of time after the first iris recognition is performed as described above.

The control unit 180 may detect the number of eyes included in the sensed image. For example, if the number of eyes included in the currently sensed image is one, the controller 180 can determine that the eye image is a monocular image. If the number of eyes is two, the control unit 180 can determine that the image is a binocular image.

Further, the control unit 180 can detect the glasses or the lens from the sensed image. For example, when the user wears glasses, the control unit 180 can detect that the user wears glasses from the shape of the frame and the lens constituting the glasses. Also, the controller 180 can detect whether the user wears the lens using the result of detecting light reflection from the pupil image sensed through the camera 121. [ And compare the number of detected eyes and the result of detecting the glasses or lenses with the data of the pre-analyzed user.

Also, the controller 180 can detect the frequency characteristic from the image of the iris portion extracted from the currently sensed image. Then, it is possible to discriminate whether or not the currently sensed image is a sensed image from an actual human eye according to a result of comparing the detected frequency characteristic and the frequency characteristic of the actual human eye image.

If the currently sensed image satisfies all of the pre-authentication requirements, that is, matches the feature points detected from the user's face as a result of the partial face recognition, the number of detected eyes, The control unit 180 may determine that the currently sensed image has not been falsified, if it is determined that the sensed image is sensed from an actual human eye. As shown in the first example 300 of FIG. 3A, when all of the pre-authentication requirements are satisfied, the controller 180 performs iris authentication for recognizing the iris from the iris pattern extracted from the currently sensed image can do.

On the other hand, unlike the case of the first example 300, if any of the pre-authentication requirements is not satisfied, the controller 180 may determine that the currently sensed image is likely to be falsified. Accordingly, the controller 180 may further perform a verification process to verify whether the currently sensed image is sensed from a true user.

For example, as shown in the second example 302 of FIG. 3A, when the currently sensed image is analyzed, it is determined that the number of detected eyes, whether wearing glasses, whether wearing the lens, If the feature points extracted from the currently sensed face image are not similar to the facial feature points of the previously stored user by a predetermined level or more, the controller 180 determines that the currently sensed image is a partial face recognition It can be judged that it does not satisfy the requirements.

Then, the control unit 180 may further perform a verification process corresponding to the current unsatisfied authentication requirement, i.e., the partial face recognition requirement. In this case, as shown in the second example 302 of FIG. 3A, the control unit 180 may request the user to recognize the whole face. In this case, the control unit 180 may display the image information related to the whole shake recognition through the display unit 151, and guide the user to sense an image for full face recognition.

When the user's entire face image is sensed by the user, the controller 180 can compare the feature points extracted from the sensed whole face image with the entire facial feature points of the user. Wherein the full facial feature points of the user are analyzed along with the user's habits during the period of analyzing the habits of the user using the iris recognition function to set the pre- As shown in Fig. The control unit 180 may perform iris authentication for recognizing the iris from the iris pattern extracted from the currently sensed image according to the result of the whole face recognition by the user.

On the other hand, the prior authentication requirements may be set to different degrees of importance. For example, the number of detected eyes and whether glasses are worn can be set to a low importance in that the user can easily change. For example, when the user performs the iris recognition while wearing the glasses, the controller 180 can analyze the habit of the user by performing the iris recognition while the user does not wear the glasses. However, whether or not such glasses are worn can be easily changed by the user. Even if the user performing the iris recognition at present is the user himself, the change can be easily detected.

On the other hand, the user's partial face recognition or wearing of the lens can be a difficult requirement to change easily. For example, the user's facial feature points are user-specific feature points, and the change is not easy to be made. In addition, in the case of wearing a lens, in general, when attaching and detaching a lent, it is necessary to pay considerable attention to the characteristics of a lens directly worn on the eyeball. Therefore, in the case of a wearer wearing a lens, iris recognition is generally performed while wearing the lens . Accordingly, the lens wear requirements can be authentication requirements that are difficult to change easily.

Therefore, if the authentication requirements are difficult to be changed, such as whether the partial face recognition or the lent is worn, the importance may be set higher. Accordingly, in order to more strictly verify whether the currently sensed image is a true user's image, full face recognition can be additionally performed as described above. On the other hand, in the case of a pre-authentication requirement related to a habit that can be easily changed by the user, for example, the pre-authentication requirements such as the above-mentioned detachment of glasses or the number of eyes used for iris recognition are not satisfied , Blink detection, and so on.

Accordingly, if the pre-authentication requirement based on the partial face recognition and wearing the lens is not satisfied, as in the second example 302 and the fifth example 308 shown in FIG. 3A, Can be performed as a verification process performed. On the other hand, if the number of eyes to be detected and the requirement for pre-authentication according to wearing glasses are not satisfied, as in the third example 304 and the fourth example 306 shown in FIG. 3A, And a simpler verification process may be performed to verify whether the requested eye blink is detected.

Meanwhile, as described above, the pater pattern analysis is an authentication requirement for determining whether the currently sensed image is an image sensed from a human eye or a sensed image from a model or printed matter. Accordingly, in a case where the authentication requirement according to the paper pattern analysis is not satisfied, a method of detecting an eye movement of an actual person such as blinking may be most effective as a verification process according to the paper pattern analysis. 3A, if the control unit 180 does not satisfy the pre-authentication requirement according to the paper pattern analysis, the control unit 180 may display the display unit 151, The user can display the image information for inducing blinking of the user's eyes and guide the user to blink his or her eyes. If the blinking of the user's eyes is detected, the controller 180 determines that there is no external forgery in the currently sensed image, and performs iris authentication to recognize the iris from the iris pattern extracted from the currently sensed image.

On the other hand, if it is determined that there is external forgery as a result of performing the required verification process, the controller 180 may block iris recognition from the currently sensed image. That is, if it is determined that the feature points extracted from the face of the user are not detected as a result of performing the whole face recognition, the controller 180 outputs the authentication error information and blocks the iris recognition. Alternatively, if the user's reaction, i.e., blinking of eyes, is not detected as a result of inducing blinking of eyes, the controller 180 may output authentication error information and block the iris recognition.

 Accordingly, even if the image having the previously stored iris template information and the iris pattern match is sensed, the controller 180 can perform the iris recognition from the sensed image based on the pre-authentication and verification result according to the pre- Can be prevented from being performed. Accordingly, the present invention can prevent the iris recognition from being performed from the external forged image.

Meanwhile, although FIG. 3A illustrates an example in which any one of the pre-authentication requirements is not satisfied, it is needless to say that a plurality of pre-authentication requirements may not be satisfied in the pre-authentication process. In this case, the control unit 180 may perform a plurality of verification processes in different ways based on the unsatisfied pre-authentication requirements.

FIG. 3B is an exemplary view showing examples of verification processes performed in the mobile terminal 100 according to the embodiment of the present invention when a plurality of pre-authentication requirements are not satisfied.

Referring to FIG. 3B, FIG. 3B shows an example of cases 350, 352, 356, and 358 where a plurality of pre-authentication requirements are not satisfied. The pre-authentication requirements indicated by hatching among the respective pre-authentication requirements shown in FIG. 3B indicate that the pre-authentication requirements are not satisfied.

The control unit 180 of the mobile terminal 100 according to the embodiment of the present invention will be described with reference to a seventh example 350 of FIG. 3B in which the pre-authentication requirement according to the partial face recognition requirement and the paper pattern analysis is not satisfied. May further perform at least one verification corresponding to the current unsatisfied authentication requirement, i. E. Partial face recognition requirements and paper pattern analysis requirements. For example, if the result of performing the pre-authentication is the same as the seventh example 350, the control unit 180 may perform the whole face recognition and the blink detection as the verification process.

In this case, the controller 180 can perform either the whole face recognition or the blink detection according to the predetermined order, and can perform another verification process that is not performed according to the result of the verification. In this case, if the currently sensed image is not verified as a sensed image from a true user, that is, an authenticated user, the control unit 180 outputs the authentication error information and does not perform the next verification process Of course it is possible.

On the other hand, if the currently sensed image is verified with the sensed image from the previously authenticated user through all the verification processes, the control unit 180 can determine that there is no external forgery on the currently sensed image. The control unit 180 can perform iris authentication for recognizing the iris from the iris pattern extracted from the currently sensed image.

On the other hand, the verification processes performed by the unsatisfied authentication requirements may differ from one another depending on the unsatisfied authentication requirements. That is, as shown in the seventh example 350 of FIG. 3B, if the verification process performed when the partial face recognition requirement and the paper pattern analysis requirement are not satisfied is the whole face recognition and eye blink detection, If not, a verification process in a different way may be performed. This is because the importance of each of the pre-authentication requirements is different as described above, and the possibility of external forgery may also vary depending on the logical causal relationship between the respective authentication requirements.

For example, it is common for users wearing eyeglasses not to wear lenses and glasses together. On the contrary, in the case of a user wearing a lens, it is general not to wear the glasses while wearing the lens. Therefore, if the habit of the user is analyzed for the pre-authentication requirement, iris recognition is mainly performed in the state where only one of the glasses or the lens is worn. Therefore, if an image for iris recognition is sensed in a state where the user does not wear glasses or a lens, only one of the pre-authentication requirements of wearing glasses or wearing a lens is not satisfied, This is because the possibility of changing the authentication requirements at the same time may be small.

As shown in the eighth example 352 of FIG. 3B, the control unit 180 performs a plurality of different verifications in the case where the wearing state of the glasses and the wearing state of the lenses are different from those of the user who has been analyzed previously can do. For example, as shown in the eighth example (352), the controller 180 may request the user to blink an eye, and may perform blink verification to detect whether the user blinks And can perform verification using a line pattern according to a predetermined pattern.

For example, the visual line pattern verification may be performed by displaying a graphic object forming a predetermined pattern on the display unit 151 and detecting a line of sight moving along the predetermined pattern. For this, the control unit 180 displays the predetermined pattern in a part of the area except one area on the display unit 151 on which the currently sensed image is displayed, and displays a text requesting the user to move the line along the pattern Can be displayed. The control unit 180 may sense a user's gaze and display a specific graphic object at a point on the display unit 151 corresponding to the detected gaze.

Meanwhile, the gaze of the user can be detected by various methods. For example, the control unit 180 can detect the current user's gaze according to the distance between the center of the eye of the image sensed by the camera 121 and the center of the pupil. When the position of the pupil center is changed, the movement of the line of sight can be detected according to the position of the center of the pupil to be changed. When the movement of the line of sight is detected, the controller 180 may display the specific graphic object to be moved to one point on the display unit 151 corresponding to the detected line of sight. Accordingly, when the user's gaze is moved, the specific graphic object can be moved according to the moving path.

On the other hand, the control unit 180 can detect whether or not the movement of the user's gaze follows a predetermined pattern currently displayed on the display unit 151. [ If the blinking of the user's eyes is detected as a result of the blink detection, the controller 180 determines that no external falsification has been applied to the currently sensed image . And iris authentication for recognizing the iris from the iris pattern extracted from the currently sensed image can be performed.

On the other hand, if the eye flicker is not detected within the predetermined time, or if the user's gaze does not move according to the pattern displayed on the display unit 151 for the gaze pattern verification, As shown in FIG. Accordingly, the control unit 180 outputs the authentication error information and terminates the iris recognition function before the iris recognition is performed, thereby blocking the iris recognition through the currently sensed image.

On the other hand, other validation schemes may be performed in addition to the above-mentioned verification schemes (full vignetting, blink detection, gaze pattern). For example, as shown in the ninth example 357 of FIG. 3B, the control unit 180 determines whether the partial face recognition requirement of the pre-authentication requirements, the number of detected eyes, , It can be determined that the partial face recognition requirement, the number of detected eyes, and the pre-certification requirements corresponding to wearing the spectacles are not satisfied. In this case, as a verification process, the control unit 180 can perform the entire face recognition process, and the user's eye image to be changed or sensed by the distance between the user's face from the camera 121 is displayed on the display unit 151 May be detected as part of the verification process.

For example, the control unit 180 can perform full face recognition first if the partial face recognition requirement, the number of detected eyes, and the pre-authentication requirements corresponding to wearing the spectacles are not satisfied, as described above. If it is determined that the currently sensed face image is the user as a result of performing the overall engraving recognition, guidance information for requesting the distance or the change may be displayed on the display unit 151. [

For example, the control unit 180 outputs text for requesting a distance change, and changes the position or size of the graphic object for displaying the position of the correct eye and the pupil, so that the user can change the position or size of the graphic object between his or her face and the camera 121 Or to change the posture so that the image of the eye is sensed at a position different from the eye position in the image currently being sensed. If the distance between the user's face and the camera 121 changes according to the request for changing the distance and / or position, or if the position of the eyes and eyes detected from the currently sensed image is changed, It can be determined that no external counterfeiting is applied to the sensed image. And iris authentication for recognizing the iris from the iris pattern extracted from the currently sensed image can be performed. On the other hand, if the total face recognition result or the requested distance or position is not changed, the controller 180 determines that the currently sensed image is likely to be falsified from outside, and recognizes iris recognition from the currently sensed image The iris recognition function can be terminated before the iris recognition process is performed.

On the other hand, if the unsatisfied pre-authentication requirements differ as described above, the verification process performed thereby may also vary. For example, if pre-authentication requirements among the pre-authentication requirements, whether wearing glasses or not, and pre-authentication requirements according to paper pattern analysis are not met, the control unit 180, like the tenth example 358 of Figure 3b, And to move the line of sight according to a predetermined pattern. Then, it is possible to determine whether or not the currently sensed image is likely to be falsified according to the movement of the user (eye flicker and eye movement) detected in response to the requested result.

Meanwhile, as a result of detecting the satisfaction of the pre-authentication requirements, it is needless to say that there are combinations in which unsatisfactory pre-authentication requirements are not mentioned in FIG. 3B. It goes without saying that it may happen that more pre-authentication requirements than the case mentioned in FIG. 3B are not satisfied. In this case, the control unit 180 may further perform verification different from that described with reference to FIG. 3B.

For example, if the presently unsatisfactory pre-authentication requirements are different from the pre-authentication requirements mentioned in FIG. 3B, the control unit 180 may perform a plurality of verification processes different from those shown in FIG. 3B have. That is, for example, the control unit 180 may perform the whole face recognition and the visual line pattern verification in the plurality of verification processes, and further perform verification using the blinking of eyes or the like. That is, the control unit 180 of the mobile terminal 100 according to the embodiment of the present invention determines whether the verification is performed according to the types and the number of unsatisfied requirements among predetermined pre-authentication requirements, The number of times can be different from each other. Here, when the verification is performed a plurality of times, it is needless to say that the verification performed a plurality of times is performed in a different manner.

3A and 3B, when at least one of various pre-authentication requirements is not satisfied, it is determined whether or not the currently sensed image is likely to be falsified through at least one verification process performed in a different manner . However, it is needless to say that the present invention is not limited thereto, and it is needless to say that any other pre-authentication requirements can be further utilized. Of course, the various pre-authentication requirements may be set according to the result of analyzing habits other than the habits of the user, which are detected at the time of the iris recognition described above.

In the above description, the case where the image to be sensed for iris recognition is falsified or altered, that is, the case where the external authentication is performed, is performed. However, as described above, unlike the method of forging or modulating an image sensed for iris recognition, when the iris template information stored in the mobile terminal 100 is forged or modulated, May be authenticated as a user. The method of falsifying or modulating information stored in the mobile terminal 100 for iris recognition will be referred to as internal forgery.

In the meantime, the present invention can also detect whether there is such internal falsification before performing iris recognition through a pre-authentication process. FIG. 4 is a flowchart illustrating a method of detecting iris recognition in a mobile terminal 100 according to an embodiment of the present invention. Referring to FIG. 4, And FIG.

Referring to FIG. 4, the controller 180 of the mobile terminal 100 according to the embodiment of the present invention can read previously stored iris template information when an image for iris recognition is sensed (S400). Here, the iris template information may be information including circular iris pattern information raised in the vicinity of the inner iris (or concert) of the user's eye.

Meanwhile, when the iris template information is stored, the control unit 180 of the mobile terminal 100 according to an embodiment of the present invention may store the information of the time at which the iris template information is stored in the stored iris template information. That is, when the first iris recognition is performed, the controller 180 stores the time value of the time at which the iris image was sensed for generation of the iris template information corresponding to the iris template, Time value information. For example, the control unit 180 may insert time value information corresponding to the iris template into the iris template information in the form of water marking.

Accordingly, if the iris template information is read in step S400, the controller 180 can confirm the time value set in the iris template information. The time value set in the iris template information and the tick value of the system corresponding to the iris template can be compared (S402). Here, the systematic value is a time value managed on the system of the mobile terminal 100, which means time information for each event generated on the system, and the systematic value corresponding to the iris template information is a system value May be a time value of the time at which the iris template is generated.

In operation S404, the control unit 180 may determine whether the systematic value corresponding to the iris template information and the time value set in the currently read iris template information coincide with each other according to the comparison result in operation S402. If it is determined that the systematic value corresponding to the iris template information and the time value set in the read iris template information coincide or coincide with each other, It can be determined that the iris template information has not generated the internal forgery. In operation S406, the controller 180 may perform iris recognition using the iris image extracted from the currently sensed image and the iris template information read in operation S400. And perform functions according to the results of the iris recognition.

On the other hand, if it is determined in step 404 that there is no time value set in the read iris template information, or if the set time value does not match the system tick value corresponding to the iris template information, It can be determined that the read iris template information is falsified internally. Accordingly, the control unit 180 outputs the authentication error information and can terminate the iris recognition function before the process of recognizing the iris from the currently sensed image is performed. Therefore, the present invention can prevent the iris recognition from being performed using the internal forged iris template information.

Meanwhile, the operation processes described with reference to FIG. 4 can be performed simultaneously with the external falsification detection process described with reference to FIG. Alternatively, the control unit 180 of the mobile terminal 100 according to the embodiment of the present invention may perform the external falsification detection process of FIG. 2 and the internal falsification detection process of FIG. Can be performed. More specifically, when an image for iris recognition is sensed by the user, the controller 180 may detect whether there is an external forgery according to the operation procedure described with reference to FIG. 2 for the sensed image. If the external forgery is not detected as the result of the external forgery detection, the internal forgery detection process described with reference to FIG. 4 may be continuously performed. Therefore, when an image for iris recognition is sensed by a user, it is detected whether or not an external forgery is performed as well as external forgery before performing the iris recognition. If the external forgery and internal forgery are not detected, . Therefore, the present invention can prevent the iris recognition security function from being falsified due to external forgery and internal forgery.

In the above description, when the risk of external forgery and internal forgery is detected in the mobile terminal 100 according to the embodiment of the present invention, the iris recognition function is terminated and the recognition of the iris from the currently sensed image is blocked The operation process is described in detail using a plurality of flowcharts.

In the following description, examples in which the iris recognition is performed in the mobile terminal 100 according to the embodiment of the present invention and the verification process is performed when at least one pre-authentication requirement is not satisfied, Will be described in detail.

5 is an exemplary diagram illustrating an example in which user authentication is performed through iris recognition in the mobile terminal 100 according to the embodiment of the present invention.

First, referring to the first drawing of FIG. 5, the first drawing of FIG. 5 shows an example in which the iris recognition function is started in the mobile terminal 100 according to the embodiment of the present invention. For example, when the mobile terminal 100 is switched to the locked state, the controller 180 detects the iris recognition function as shown in the first drawing of FIG. 5, You can start. When the iris recognition function is started, the control unit 180 displays graphic objects 520 and 530 in at least one area 510 on the display unit 151 to guide the user's correct eye position and pupil position, Can be displayed.

In this state, the control unit 180 can activate the camera, for example, the first camera 121a. Accordingly, when the user looks at the first camera 121a, the image of the user's face can be sensed through the first camera 121a as shown in the second drawing of FIG. 5, An image of the first region 510 may be displayed in the form of a preview image.

On the other hand, when the image of a portion of the face including the image of the user's eye is sensed and displayed on a part of the display unit 151, the controller 180 may detect predetermined pre-authentication requirements from the sensed image .

3A and 3B, the controller 180 extracts feature points from a portion of the user's face currently sensed and compares the feature points with previously stored feature points of the user face (Pre-authentication based on partial face recognition). Also, as shown in the second diagram of FIG. 5, the controller 180 can detect the number of eyes detected from the currently sensed image as two if the current sensed image includes both eyes of the user. The number of currently detected eyes (2) and the number of eyes detected according to the iris recognition habit of the pre-stored user can be compared (pre-authentication according to the number of eyes detected).

In addition, the controller 180 can detect whether the user wears glasses or wears lenses from the sensed images. The detection result can be compared with wearing glasses and wearing lenses depending on iris recognition habits of pre-stored users (pre-authentication according to wearing glasses and wearing lenses). Also, the controller 180 may extract the image of the iris portion from the currently sensed eye image, and convert the image of the extracted iris portion into the frequency domain. Then, it is possible to judge whether the eye image is a printed lens or a sensed image from a printed matter or a model based on frequency characteristics appearing from a frequency domain (pre-authentication according to the paper pattern analysis). Also, the controller 180 reads the iris template information for performing the iris recognition, and compares the time value set in the read iris template information with the systematic value corresponding to the iris template information (internal falsification detection) . The third diagram of FIG. 5 shows an example in which pre-authentication and internal falsification detection for external falsification detection are performed from the currently sensed image.

On the other hand, if it is determined that there is no external forgery as a result of performing the pre-authentication, and it is determined that internal falsification has not been performed as a result of performing the internal falsification detection, the controller 180 controls the iris pattern extracted from the currently sensed image, Iris recognition according to the read-out red-leaf template information can be performed. When the user is authenticated through the iris recognition, the controller 180 may perform a predetermined function. That is, if iris recognition is performed to release the locked state while the mobile terminal 100 is in the locked state as described above, the controller 180 cancels the locked state of the mobile terminal 100 The display unit 151 can be controlled so that the corresponding screen information is displayed. Accordingly, the controller 180 can display the home screen 540 as shown in the fourth drawing of FIG. 5, and can perform various functions selected by the user.

6A, 6B, and 6C are exemplary diagrams illustrating examples in which, in the mobile terminal 100 according to the embodiment of the present invention, different additional verification is performed when at least one of the pre-authentication requirements is not satisfied.

6A illustrates an example in which blink detection detection and line pattern verification are performed according to a result of performing pre-authentication from an image sensed for iris recognition as described above.

For example, when the control unit 180 detects the respective pre-authentication requirements from the currently sensed image, if there is an unsatisfied pre-authentication requirement, the verification unit 180 can perform the verification process accordingly. Therefore, as a result of detecting the pre-authentication requirements as shown in the third diagram of FIG. 5, when the pre-stored user's iris recognition habit and the learned lens wearing state and lens wearing state are all changed (eighth example of FIG. (Step 352), the controller 180 may perform blink detection verification and eye line pattern verification.

For example, if the blink detection detection is performed first, the control unit 180 displays text information requesting the user's blinking of eyes on one area 500 (see FIG. 6A) on the display unit 151, ). ≪ / RTI > In addition, the controller 180 may display the remaining time 600 according to the predetermined time limit on the display unit 151 to guide the user to blink in accordance with the text information within a predetermined time. If the user does not blink during the time limit, it is determined that the currently sensed image is likely to be falsified, and the authentication error information is output and the iris recognition from the currently sensed image can be blocked.

On the other hand, if the user blinks within the time limit, the controller 180 may determine that blink verification is completed. Then, the control unit 180 can perform the line pattern verification. That is, as shown in the third diagram of FIG. 6A, the control unit 180 displays a plurality of points displayed at regular intervals in one area 610 on the display unit 151, and a part of the plurality of points are connected to each other A first graphic object 614 corresponding to the pre-formed pattern may be displayed on the one area 610. [

The control unit 180 may display the second graphic object 612 at one point in the one area 610. The user's gaze can be detected. The controller 180 controls the second graphic object 612 to display the first graphic object 612 when a point on the display unit 151 corresponding to the user's gaze corresponds to a point at which the second graphic object 612 is initially displayed. And can be moved according to the movement of the user's gaze. The controller 180 may change the color or shape of the second graphic object 612 to indicate that the user's gaze is detected when the user's gaze is detected on the second graphic object 612 Of course.

Meanwhile, the second graphic object 612 may be moved according to the movement of the user's gaze. If the second graphic object 612 is moved, the control unit 180 may display the trajectory of the second graphic object 612 to be separately displayed. And may perform verification of the line of sight pattern according to whether the second graphic object 612 moves along the trajectory of the preformed pattern along the first graphic object 614. That is, when the second graphic object 612 moves along the pre-formed pattern, the controller 180 may determine that the currently sensed image is not falsified. On the other hand, if the second graphic object 612 does not move, or if the second graphic object 612 does not move along the pre-formed pattern, it can be determined that the currently sensed image has the possibility of external forgery have.

On the other hand, the pre-formed pattern may be randomly generated at the time when the line-of-sight pattern is performed. Alternatively, when the pre-formed pattern is set in advance by the user, the first graphic object 614 for displaying the pattern may not be displayed. In this case, only the movement of the second graphic object 612 and its movement trajectory may be displayed on the display unit 151. [ The control unit 180 may determine whether the currently sensed image is likely to be falsified according to whether or not the movement trajectory of the second graphic object 612 corresponds to a pattern previously set by the user.

On the other hand, if it is determined that no external forgery has been performed on the currently sensed image as a result of the eye pattern verification, the controller 180 determines whether the iris pattern is detected from the currently sensed image, Recognition can be performed.

In this case, the controller 180 may further detect whether or not the internal forgery is performed based on the time value set for the iris template information before the iris recognition is performed. In this case, the iris recognition may be blocked or the iris recognition may be performed according to the detection result of the internal forgery. If the user is authenticated according to the result of the iris recognition, the controller 180 can perform a predetermined function. That is, the mobile terminal 100 can be released from the locked state, the home screen 540 can be displayed as shown in the fourth diagram of FIG. 6A, and various functions selected by the user can be performed.

On the other hand, FIG. 6B shows an example in which full face recognition and blinking verification are performed according to a result of performing pre-authentication from an image sensed for iris recognition as described above.

For example, the control unit 180 determines that the facial feature points extracted from the currently sensed image are not similar to the facial feature points of the user previously stored (the pre-authentication requirement according to the partial face recognition Is not satisfied), if the currently sensed image differs from the actual human eye image as a result of analyzing the paper pattern (if the pre-authentication requirement according to the paper pattern analysis is not satisfied), the currently unsatisfied dictionary As a verification process according to the authentication, the whole face recognition and blink detection detection can be performed.

6B, the controller 180 may sense the entire face of the user from the camera 121. If the face image of the entire face is sensed, Can be displayed on the entire display 151 area. Then, the feature points extracted from the entire face of the sensed user can be compared with facial feature points of the pre-stored user. Here, the pre-stored facial feature points may be minutiae points extracted from a full face image of the user in advance.

On the other hand, if the current sensed image is not recognized as a user's face as a result of the whole face recognition, the controller 180 may output the authentication error information and block the iris recognition from the currently sensed image. On the other hand, if the currently sensed image is recognized as the user's face, the controller 180 can determine that the entire face recognition is completed. Then, the control unit 180 can subsequently perform blink verification.

6B, the control unit 180 may display the text information requesting the blinking of the user in one area 500 on the display unit 151. In this case, Also, the controller 180 may display the remaining time 600 according to the predetermined time limit on the display unit 151. [ If the user does not blink during the time limit, it is determined that the currently sensed image has the possibility of external forgery, the authentication error information is output, and the iris recognition from the currently sensed image is blocked.

On the other hand, if the user blinks within the time limit, the controller 180 may determine that blinking verification is completed. Then, the control unit 180 can determine that the external image is not falsified with respect to the currently sensed image. Then, iris recognition can be performed using the result of detecting the iris pattern from the currently sensed image and the previously stored iris template information. Here, the controller 180 may further detect whether the internal forgery is performed based on the time value set for the iris template information before the iris recognition is performed.

If the user is authenticated according to the iris recognition result, the controller 180 cancels the locked state of the mobile terminal 100 as shown in the fourth drawing of FIG. 6B, (540) can be displayed.

On the other hand, FIG. 6C shows an example in which whole face recognition and distance and position change verification are performed according to a result of performing pre-authentication from an image sensed for iris recognition as described above.

For example, the control unit 180 determines that the facial feature points extracted from the currently sensed image are not similar to the facial feature points of the user previously stored (the pre-authentication requirement according to the partial face recognition (In the case where the number of detected eyes is different) (when the pre-authentication requirement according to the number of eye glasses is not satisfied), the user is in a state in which the glasses are detached from the normal state Is not satisfied) can be detected. In this case, the control unit 180 may perform the entire face recognition, the distance, and the position change verification in the verification process corresponding to the detected requirements.

6C, the controller 180 may sense the entire face of the user from the camera 121. If the face image of the entire face is sensed, Can be displayed on the entire display 151 area. Then, the feature points extracted from the entire face of the sensed user can be compared with facial feature points of the pre-stored user.

On the other hand, if the current sensed image is not recognized as a user's face as a result of the whole face recognition, the controller 180 may output the authentication error information and block the iris recognition from the currently sensed image. On the other hand, if the currently sensed image is recognized as the user's face, the controller 180 can determine that the entire face recognition is completed. The control unit 180 can then perform distance and position change verification.

The control unit 180 may change the size and position of one area 510 including the guide graphic objects 520 and 530 displayed on the display unit 151. [ Here, the guide graphic objects 520 and 530 may be for guiding the user to arrange the positions of the eyes and the pupil in correct positions for iris recognition. For example, in the case of the position change verification, the control unit 180 determines whether the guide graphic objects 520 and 530 in the one area 510 are maintained in a state where the distance between the guide graphic objects 520 and 530 is maintained ) May be changed. In this case, the controller 180 must change the positions where the eyes and the pupils are aligned according to the changed guide graphic objects 520 and 530, so that the correct iris region can be detected from the sensed image.

On the other hand, in the case of changing the distance, the controller 180 may display the size of the guide graphic objects 520 and 530 in a large or small size. In this case, when the user changes the size of the guide graphic objects 520 and 530, the user can make the distance between the faces from the camera 121 longer or shorter, And the pupil can be aligned. That is, the controller 180 may guide the user to make the distance between the face of the user and the camera 121 longer or shorter according to the size of the guide graphic objects 520 and 530.

The third diagram in FIG. 6C shows an example in which the sizes of the guide graphic objects 520 and 530 are reduced and displayed in order to perform the verification according to the position and distance changes. In this case, a reduced area 660 including reduced guide graphic objects 670, 680 may be created. When the user increases the distance from the camera 121 to the face in order to align the positions of the eye and the pupil according to the reduced guide graphic objects 670 and 680, the control unit 180 can detect the distance. For example, the control unit 180 may detect the increased distance depending on whether the user's eyes and pupils are aligned on the distance sensor provided in the camera 121 or on the reduced guide graphic objects 670 and 680 . If the extended distance is detected, the control unit 180 may determine that no external forgery has been applied to the currently sensed image as a result of performing verification according to the change of the position and the distance.

Then, the controller 180 can perform the iris recognition using the result of detecting the iris pattern from the currently sensed image and the previously stored iris template information. Here, the controller 180 may further detect whether the internal forgery is performed based on the time value set for the iris template information before the iris recognition is performed. If the user is authenticated according to the iris recognition result, the controller 180 cancels the locked state of the mobile terminal 100 as shown in the fourth drawing of FIG. 6C, (540) can be displayed.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit 180 of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (10)

A memory for storing iris template (templete) information including iris pattern information of a user;
A camera for sensing an image of a part of a face including a user's eye part;
A display unit for displaying the sensed image; And
If the sensed image does not satisfy at least one of the pre-authentication requirements, detecting if the sensed image meets predetermined pre-authentication requirements if the image of the portion of the face is sensed; and if the sensed image does not satisfy at least one of the pre- Displaying at least one graphic object guiding to perform a specific action on the display unit and verifying whether or not the sensed image is falsified based on whether or not the user performs the specific action, And a controller for blocking iris recognition from the sensed image or performing iris recognition based on the iris pattern and the iris template information detected from the sensed image. The apparatus of claim 1,
Guiding the user through the graphic object so that the user performs one of a plurality of different predetermined actions based on any one of the unsatisfied pre-authentication requirements,
And verifies whether or not the sensed image is falsified based on whether any one of the actions is performed by the user. 3. The method of claim 2,
The pre-
The predetermined importance is different from each other,
Wherein,
Wherein the mobile terminal determines any one of the plurality of predetermined actions according to the degree of importance of the non-satisfied pre-authentication requirement among the pre-authentication requirements. 3. The method of claim 2,
Changing the face area sensed by the camera, and changing the distance between the camera and the face of the user. The apparatus of claim 1,
Wherein when a plurality of the unsatisfied pre-authentication requirements are satisfied, a plurality of graphical objects are provided to allow the user to sequentially perform a plurality of behaviors corresponding to the combination of the unsatisfied pre-authentication requirements among the plurality of different predetermined behaviors Guide users,
And verifies whether or not the sensed image is falsified according to whether the user has performed all of the plurality of behaviors. 2. The method of claim 1,
And authentication requirements determined according to a result of analyzing a user's habit from the images sensed for the iris recognition for a predetermined period. The apparatus of claim 1,
And verifies whether or not the sensed image is falsified based on whether the user performs the specific action within a predetermined time limit,
And displays the graphic object related to the predetermined time limit on one area on the display unit. The apparatus of claim 1,
And comparing the time value preset in the iris template information with a systematic tick value corresponding to the iris template information to detect whether the iris template information is forged or not,
Wherein the systematic value corresponding to the iris template information includes:
Means time value of the time at which the iris template information was generated, among the time information stored for each event generated in the mobile terminal. Sensing an image of a part of a face including a user's eye part;
Detecting whether the sensed image meets predetermined pre-authentication requirements;
Displaying at least one graphical object guiding the user to perform a specific action if the sensed image does not satisfy at least one of the pre-authentication requirements;
Verifying whether the sensed image is falsified based on whether the user performs the specific action; And
And interrupting iris recognition from the sensed image according to the verification result or performing iris recognition based on the iris pattern detected from the sensed image and the previously stored iris template information. / RTI > 10. The method of claim 9,
Wherein the verifying step comprises:
Confirming a time value set in the iris template information;
Detecting a system tick value corresponding to the iris template from a system tick value of the mobile terminal;
Comparing a time value preset in the iris template information with a systematic value corresponding to the iris template information; And
Detecting whether the iris template information is falsified according to the comparison result,
Wherein the step of intercepting iris recognition or performing iris recognition comprises:
Wherein the iris recognition is interrupted or the iris recognition is performed based on both a result of verifying whether the sensed image is falsified or a result of detecting whether the falsification of the iris template information is detected, To the mobile terminal.

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