KR20110002367A - Mobile terminal and method for controlling the same - Google Patents

Abstract

PURPOSE: A mobile terminal and a control method thereof are provided to automatically recognize a face of each person in a picture of a person and display a thumbnail, thereby selecting a face of a person for enhancement. CONSTITUTION: A control unit enters a picture view mode(S301). In a picture view mode, the control unit controls the display of a specific picture(S302). The control unit recognizes the face of persons in the specific picture(S303). The control unit displays the faces of the recognized person through a thumbnail image(S304). If on thumbnail image is selected, the control unit directly displays the face of a person corresponding to the thumbnail image in a preset size(S305,S306).

Description

MOBILE TERMINAL AND METHOD FOR CONTROLLING THE SAME}

The present invention relates to a mobile terminal and a method of controlling the same, which can rapidly enlarge and display a face of a selected specific person after recognizing faces of people included in a picture.

Terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal may be further classified into a handheld terminal and a vehicle mount terminal according to whether a user can directly carry it.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. . In order to support and increase the function of such a terminal, it may be considered to improve the structural part and / or the software part of the terminal.

In general, although a conventional photograph can be taken using a camera built in the terminal, it is not possible to quickly enlarge only a face part of a specific person in the photographed picture. In addition, it was not possible to cut only the face of a specific person to a desired size and store it separately, or to automatically apply the cut out picture to an additional function such as a phone book. That is, the user may cut out or store the face part of the specific person by enlarging the face part of the specific person through multiple operations or by executing an image editing function among the additional functions. As described above, there is a problem in that the convenience is inferior because there is no linking function that can utilize the taken picture immediately.

The present invention is to provide a mobile terminal and a method of controlling the same, which are capable of rapidly expanding and displaying the face of a specific person included in a picture.

The present invention provides a mobile terminal capable of automatically recognizing faces of people included in a picture and displaying them as thumbnails, and a control method thereof.

An object of the present invention is to provide a mobile terminal and a method of controlling the same, which can enlarge a face part of a person represented by a thumbnail and display it on a full screen.

An object of the present invention is to provide a mobile terminal and a control method thereof, which can display any one of the persons displayed as thumbnails so that a user can easily select it.

It is an object of the present invention to provide a mobile terminal and a method of controlling the same, which are capable of automatically cutting out faces of people included in a picture to a specific size.

An object of the present invention is to provide a mobile terminal capable of automatically storing a face photo of a person displayed as a thumbnail and a control method thereof.

A mobile terminal according to an embodiment of the present invention for realizing the above object recognizes a face of a person included in a camera, a display unit, and a specific picture displayed on the display unit, and thumbnails of the recognized faces of each person. And a controller which displays an image and immediately expands and displays a face of a person corresponding to the thumbnail image to a preset size when one of the thumbnail images is selected.

In addition, the present invention for realizing the above problem is to enter a picture viewing mode to display a specific picture, to recognize the faces of the people included in the particular picture to display the faces of each person as a thumbnail image, any one of the When a thumbnail image of the is selected, a face of a person corresponding to the thumbnail image is immediately enlarged and displayed at a preset size.

The mobile terminal according to at least one embodiment of the present invention configured as described above has an effect of allowing a user to simply select a face of a person to be enlarged by automatically recognizing the face of each person in the person picture and displaying it as a thumbnail. have.

In addition, the present invention is configured as described above has the effect of automatically cutting and storing the face picture of the person represented by the thumbnail to fit the size available in a particular additional function.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other.

The mobile terminal described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. The components shown in FIG. 1 are not essential, so that a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives a broadcast signal 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. The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a pre-generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast (DVB-H). Digital broadcast signals can be received using digital broadcasting systems such as Handheld and Integrated Services Digital Broadcast-Terrestrial (ISDB-T). Of course, the broadcast receiving module 111 may be configured to be suitable for not only the above-described digital broadcasting system but also other broadcasting systems.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives a wireless signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access and may be embedded or external to the mobile terminal 100. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The location information module 115 is a module for obtaining a location of a mobile terminal, and a representative example thereof is a GPS (Global Position System) module.

Referring to FIG. 1, the A / V input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by an image sensor in a video call mode or a photographing mode. The processed image frame may be displayed on the display unit 151.

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. Two or more cameras 121 may be provided according to the use environment.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. The sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154. Can be.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

The display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of a 3D display.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the implementation form of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another, or may be disposed integrally with one another, and may be disposed on different surfaces, respectively.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensor may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display unit 151 or capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor may be configured to detect not only the position and area of the touch but also the pressure at the touch.

If 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 then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. When the touch screen is capacitive, the touch screen is configured to detect the proximity of the pointer by the change of the electric field according to the proximity of the pointer. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). Information corresponding to the sensed proximity touch operation and proximity touch pattern may be output on the touch screen.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152, so that they 151 and 152 may be classified as part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or may be sequentially output.

In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through the jetting or suction port, grazing to the skin surface, contact of the electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 154 may be provided according to a configuration aspect of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk. The mobile terminal 100 may operate in connection with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( 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 terminal 100 through the port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be transferred. It may be a passage that is delivered to the terminal. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

Various embodiments described herein may be implemented in a recording medium readable by a computer or similar device using, for example, software, hardware or a combination thereof.

According to a hardware implementation, embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein. Software code may be implemented in software applications written in a suitable programming language. The software code may be stored in the memory 160 and executed by the controller 180.

Figure 2a is a front perspective view of an example of a mobile terminal or a portable terminal related to the present invention.

The disclosed portable terminal 100 has a terminal body in the form of a bar. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable.

The body includes a casing (casing, housing, cover, etc.) that forms an exterior. In this embodiment, the case may be divided into a front case 101 and a rear case 102. Various electronic components are built in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be further disposed between the front case 101 and the rear case 102.

The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the audio output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, and the interface 170 may be disposed in the terminal body, mainly the front case 101. have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on side surfaces of the front case 101 and the rear case 102.

The user input unit 130 is manipulated to receive a command for controlling the operation of the portable terminal 100 and may include a plurality of operation units 131 and 132. The manipulation units 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user operates the tactile manner with a tactile feeling.

Content input by the first or second manipulation units 131 and 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

FIG. 2B is a rear perspective view of the portable terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 ′ may be additionally mounted on the rear of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the camera 121 'photographs a general subject and does not transmit it immediately. It is desirable to have a high pixel because there are many. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 are further disposed adjacent to the camera 121 '. The flash 123 shines light toward the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to see his / her own face or the like when photographing (self-photographing) the user using the camera 121 '.

The sound output unit 152 'may be further disposed on the rear surface of the terminal body. The sound output unit 152 ′ may implement a stereo function together with the sound output unit 152 (see FIG. 2A), and may be used to implement a speakerphone mode during a call.

In addition to the antenna for talking and the like, a broadcast signal reception antenna 116 may be additionally disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module 111 (see FIG. 1), can be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the portable terminal 100 is mounted on the terminal body. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

The rear case 102 may be further equipped with a touch pad 135 for sensing a touch. Like the display unit 151, the touch pad 135 may also be configured to have a light transmission type. In this case, if the display unit 151 is configured to output visual information from both sides, the visual information may be recognized through the touch pad 135. The information output on both surfaces may be controlled by the touch pad 135. Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

The touch pad 135 operates in association with the display unit 151 of the front case 101. The touch pad 135 may be disposed in parallel to the rear of the display unit 151. The touch pad 135 may have the same or smaller size as the display unit 151.

Various types of time information can be displayed on the display unit 151. [ These pieces of information can be displayed in the form of letters, numbers, symbols, graphics, or icons. In order to input such information, at least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement so as to be implemented in the form of a keypad. Such a keypad may be called a so-called " soft key ".

Hereinafter, embodiments related to a control method that can be implemented in a terminal configured as described above will be described with reference to the accompanying drawings. Embodiments described later may be used alone or in combination with each other. In addition, embodiments described below may be used in combination with the above-described user interface (UI).

Hereinafter, in the present embodiment, it is assumed that the face recognition function is executed.

3A to 3C are exemplary views illustrating a method of recognizing faces of people included in a photo and displaying them as thumbnail images according to the present invention.

As shown in FIG. 3A, a portrait picture is displayed on the display unit 151. The portrait picture may be a picture displayed on a preview screen while taking a picture (310). In addition, the portrait picture may be a picture displayed on a review screen after taking a picture (311). In addition, the portrait picture may be any one of the pictures stored in the photo album (312).

In the present exemplary embodiment, the face recognition function may be applied to a preview screen displayed for taking a picture, or may be applied to a review screen displayed after taking a picture. It can also be applied to photographs. The controller 180 recognizes faces of each person included in the portrait picture (313).

The controller 180 recognizes the face in order to recognize the overall outline of the face or skin tone (= bluish) information and feature information on components of the face such as eyes, nose, mouth, eyebrows, or ears (eg, length, position). , Angle, shape) can be detected.

The recognized faces are displayed in a preset manner. For example, as illustrated in FIG. 3B, the controller 180 may display the recognized faces as thumbnail images 321 and 322, respectively. The thumbnail image may be aligned on one side (eg, left, right, top, bottom) of the screen.

In addition, as shown in FIG. 3C, the controller 180 may display the frames 331 and 332 having a specific shape on the face of the portrait. The size of the frame may be displayed differently in proportion to the size of each person's face. For example, a large frame may be displayed on a large face and a small frame may be displayed on a small face.

And the shape of the thumbnail or frame may be displayed in a predetermined shape (for example, square, round, oval, star). They may be marked with different attributes (eg color, contrast, thickness, line shape (eg dashed line, solid line), highlight). The attribute may be displayed differently from the first recognized face if there is already a recognized face. For example, the first recognized face may be displayed in a blue solid line, and if a face of a previously recognized person is already stored, the face may be displayed in a red dotted line.

Each of the thumbnail images or frames may be selected by a user.

The controller 180 may enlarge and display a face part of a person corresponding to a thumbnail image or a frame selected by the user to a preset size. For example, assuming that the preset size is full screen, the face part may be enlarged and displayed on a full screen.

Hereinafter, a method of selecting the thumbnail image or frame will be described.

4A to 4C are exemplary views illustrating a method of selecting a person represented by a thumbnail image according to the present invention.

As described above, the controller 180 recognizing the face in the portrait picture may display a thumbnail image corresponding to the face of each person on one side of the screen.

The thumbnail images may be displayed in a line or randomly displayed.

Meanwhile, since the thumbnail image has a small size, it may be difficult for a user to select a thumbnail image. Accordingly, in order to facilitate selection of a thumbnail image, the controller 180 may adjust a size of the thumbnail image by detecting a proximity touch with respect to the thumbnail image, for example, as shown in FIG. 4A. As the (or selection means) approaches a particular thumbnail image, the size of the particular thumbnail image can be automatically enlarged. On the contrary, as the finger moves away from the thumbnail image, the size of the thumbnail image may be returned to the original size. By adjusting the size of the thumbnail image as described above, the user can easily select the thumbnail image of the desired person.

As shown in FIG. 4B, when the user selects a specific thumbnail image 321, the controller 180 may immediately enlarge the face part of the person corresponding to the thumbnail image and display it in full screen. . The user may touch or double touch the thumbnail image. Alternatively, for the selection, the user may drag or flick toward the screen center while touching the thumbnail image.

When the face portion of a specific person is enlarged to the full screen as described above, the controller 180 may return a return icon (not shown), a menu (not shown), or a specific button (not shown) to return to the original size of the portrait. Or thumbnail image 341 may be displayed. When the return icon, menu, specific button, or thumbnail image is selected, the controller 180 may reduce the size of the face of the specific person and immediately display a portrait picture of the original size.

In addition, another preset method may be used to return the portrait. For example, double-touch an enlarged face on the full screen, flick the enlarged face in one direction, or touch the enlarged face in a specific shape (such as a straight line or a circle) or in a specific direction (such as When dragging upwards, downwards, rightwards, leftwards, and with thumbnails), the controller 180 can directly display a portrait of the original size. Alternatively, when there is no touch input or key input for a predetermined time after the face is enlarged and displayed as described above, the controller 180 can automatically display a portrait picture of the original size.

The reason for enlarging the face as described above is to look at the face in more detail and to check whether there is blemish on the face. Therefore, when the face of a specific person is enlarged to the full screen as described above, tools for editing a photo may be displayed on one side of the screen according to a preset option. For example, as illustrated in FIG. 4C, when the face of a specific person is enlarged to the full screen as described above, the controller 180 may automatically change from the photo viewing mode to the photo editing mode. In addition, tools 333 for editing an image (or photo) may be displayed on one side of the screen.

The photo view mode may refer to a mode for displaying a photo displayed on a preview screen, a photo displayed on a review screen, or a photo loaded from a photo album. The photo editing mode may be referred to as a photo editing mode.

In addition, when the full screen is released, that is, when displaying a portrait photo of the original size, the controller 180 may automatically return to the photo viewing mode in the photo editing mode. In the photo editing mode, the user may cleanly correct a face part, draw a picture, or input additional information such as text. You can also modify the face shape, insert dimples, or lighten dark skin tones.

5A and 5B are exemplary views illustrating a method of selecting and enlarging a person represented by a frame according to the present invention.

As illustrated in FIG. 5A, the controller 180 recognizing a face in the portrait picture may overlap and display frames 331 and 332 having a predetermined specific shape or property on the face of each person.

When the user touches a face part of a specific person represented by the frame or touches a frame, the controller 180 can immediately enlarge the face part of the person corresponding to the frame and display it in full screen. have.

As described above, when the face of a specific person is enlarged to the full screen, the controller 180 may automatically change the picture viewing mode to the picture editing mode. In the photo editing mode, the user may correct the enlarged face or input additional information. When the full screen is released, that is, when displaying a portrait picture of the original size, the controller 180 may automatically return the picture editing mode to the picture viewing mode.

Similar to the face magnification method using the thumbnail image, when the face portion of a specific person is enlarged to the full screen, the controller 180 may provide methods for returning to the original size of the portrait picture. The specific methods have been described with reference to FIG. 4 and thus will be omitted.

Meanwhile, after the face of a specific person is enlarged to the full screen as described above, the user may enlarge the face photo to a larger size by using the photo enlargement button or the photo enlargement menu. The enlarged face picture may be returned to the face picture of the original size when the thumbnail image corresponding to the face is touched. Alternatively, the display may be further enlarged or reduced using multi touch. For example, as shown in FIG. 5B, when two parts of the finger are touched with two fingers to be enlarged, the two fingers are enlarged when the two fingers are spread to both sides, and the two fingers which are spread apart can be reduced by being pinched.

6 is an exemplary view illustrating a method of utilizing a face recognized in a portrait picture according to the present invention.

As described above, when the face is recognized (S101), the controller 180 may compare the recognized face with face information of a recognized person (S102). For example, the previously recognized face information may be stored in an arbitrary database (eg, a first database or a face recognition information database) 351. The face recognition function may simply detect face contour information or detect various feature information related to a face. In addition, the database may further manage person information (eg, name, phone number, e-mail address, relationship with user) corresponding to each face.

The controller 180 compares the newly recognized face with reference to face information of various persons stored in the database. If the same person is already recognized according to the comparison result, the state information (information indicating that the same person is already recognized) or information related to the same person can be displayed (S103). In operation S104, a picture related to the recognized person may be further mapped to the same person. The mapping may map a picture obtained by cutting only a face portion, or may map an entire picture (eg, a group portrait) including a person corresponding to the face. In this case, the photo mapped to each person may be stored in a separate database (eg, a second database or a portrait picture database) 352. As described above, when the person information matching the newly recognized face is previously stored, the controller 180 automatically adds the photo of the newly recognized face as a picture related to the person.

More than one picture stored in the second database 352 may be stored for the same person. In addition, a picture mapped to each person may be used for an arbitrary function (eg, a phone book function) included in the mobile terminal. If there is no person information matching the newly recognized face, it may be manually registered (S105).

Hereinafter, a method of manually registering person information matching the newly recognized face will be described.

7 is an exemplary view illustrating a method of registering person information of a face recognized in a picture according to the present invention.

As described above, when the face 180 is recognized in the portrait picture, the controller 180 may display the face portion as a thumbnail image or display a frame having a specific shape on the face portion. The photograph state may be confirmed or corrected by enlarging the face of the person selected in the thumbnail image or frame to the full screen.

Accordingly, the user who checks or corrects the picture state may store the face picture as information related to a specific function. For example, when the user long touches the thumbnail or frame, the controller 180 may display menus for processing the face photo. The menus may include a menu 361 for storing the face photo in the phone book. When the menu 361 is selected, the controller 180 can automatically cut and automatically store the face picture in accordance with a size that can be registered in the phone book.

Here, when the size of the thumbnail image or frame is the same as the size that can be registered in the phone book (S201), the face image of the thumbnail image or frame may be immediately cut and registered in the phone book (S202). However, if the size of the thumbnail image or the size of the frame is different from the size that can be registered in the phone book (S203), it may be cut out of the original portrait to fit the size (S204). The photograph of the cut-out face part may be registered in the phone book (S205).

8 is a flowchart illustrating a method of rapidly enlarging a face part of a specific person in a picture displayed on a mobile terminal according to the present invention.

According to a user's menu operation, the controller 180 enters a picture viewing mode (S301).

In the picture viewing mode, the controller 180 outputs an arbitrary picture to the display unit 151 (S302). The arbitrary picture may be any one of a picture displayed on a preview screen during camera shooting, a picture output on a review screen after camera shooting, or a picture loaded from a photo album.

The controller 180 recognizes faces of people included in the picture according to a preset option (S303). Any known face recognition algorithm can optionally be used to recognize the face.

The face of each recognized person is displayed as a thumbnail image (S304). Alternatively, a face of a preset shape or property may be overlaid on the face of each person. If the recognized person's information is already stored, the information may be displayed when the thumbnail or frame is displayed.

When there are many people included in the picture, thumbnail images may also increase. Therefore, the controller 180 may arrange the thumbnail images in which the faces of each person are displayed in a preset manner. For example, it can be aligned on one side of the screen. Or you can sort them in the location you specify.

The user may select any one of the thumbnail images. Alternatively, one of the frames may be selected.

When any one thumbnail image is selected (YES in S305), the controller 180 can enlarge and display a face of a person corresponding to the thumbnail image in a preset size (S306). The preset size includes a full screen size.

The controller 180 may switch to a photo editing mode when the face of the specific person is enlarged. The corrected or edited photo may be stored in the photo editing mode. When receiving a specific key or a specific touch input in a preset manner, the controller 180 may reduce the size of the enlarged photo to display the original photo.

In the above, preferred embodiments of the present invention have been described with reference to the accompanying drawings.

Here, the terms or words used in the present specification and claims should not be construed as being limited to ordinary or dictionary meanings, but should be construed as meanings and concepts corresponding to the technical spirit of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical idea of the present invention, which can be replaced at the time of the present application It should be understood that there may be various equivalents and variations.

1 is a block diagram of a mobile terminal associated with one embodiment of the present invention;

2A is a front perspective view of a mobile terminal related to one embodiment of the present invention;

2B is a rear perspective view of a mobile terminal related to one embodiment of the present invention;

3A to 3C are exemplary views illustrating a method of recognizing faces of people included in a photo and displaying the thumbnail images according to the present invention.

4A to 4C are exemplary views illustrating a method of selecting a person represented by a thumbnail image according to the present invention.

5A and 5B are exemplary views illustrating a method of selecting and enlarging a person represented by a frame according to the present invention.

6 is an exemplary view illustrating a method of utilizing a face recognized in a portrait picture according to the present invention.

7 is an exemplary view illustrating a method of registering person information of a face recognized in a picture according to the present invention.

8 is a flowchart illustrating a method of rapidly enlarging a face portion of a specific person in a picture displayed on a mobile terminal according to the present invention.

Claims (16)

Entering a picture viewing mode; Displaying a specific picture in the picture viewing mode; Recognizing faces of persons included in the specific picture; Displaying the recognized faces of each person as a thumbnail image; And when one of the thumbnail images is selected, immediately expanding and displaying a face of a person corresponding to the thumbnail image to a preset size. The method of claim 1, wherein the specific photo, Photos displayed on the preview screen during camera shooting, Photo taken on the review screen after taking a camera, or A control method of a mobile terminal, characterized in that at least one of the photos loaded from the photo album. The method of claim 1, wherein the preset size is A method of controlling a mobile terminal, comprising a full screen size. The method of claim 1, wherein when the face of the specific person is enlarged, The control method of the mobile terminal, characterized in that the automatic switching to the photo editing mode to display the tools necessary for editing the photo. The method of claim 1, wherein when the face of the specific person is enlarged, A method of controlling a mobile terminal, characterized in that to display a menu, an icon, or a thumbnail image that can be immediately returned to its original picture size. The method of claim 1, wherein the enlarged face of the specific person, A face may be further enlarged by using a preset button, a menu, or a multi-touch method, and when the thumbnail image corresponding to the enlarged face is touched, the face may be immediately returned to the size before it is further enlarged. Control method of the terminal. The method of claim 1, wherein the control method of the mobile terminal comprises: And superimposing a frame having a predetermined shape or property on the faces of each person instead of the thumbnail image. The method of claim 7, wherein when the frame is selected, And expanding and displaying the face on which the frame is displayed immediately to a preset size. The method of claim 7, wherein the frame, And a size of the frame is displayed differently in proportion to the size of each person's face. The method of claim 1, wherein the control method of the mobile terminal comprises: And if the faces of the people included in the specific picture are recognized, comparing whether the information related to the recognized person is pre-stored in the terminal. The control method of claim 10, wherein when information related to the recognized person is pre-stored, the state information can be displayed together when displaying a thumbnail image or a frame. A camera; A display unit; Recognize faces of people included in a specific picture displayed on the display unit, display faces of each recognized person as a thumbnail image, and when the one thumbnail image is selected, a person corresponding to the thumbnail image And a controller for directly expanding and displaying a face of the face in a preset size. The method of claim 12, wherein the control unit, And when the face of the specific person is enlarged, the mobile terminal is automatically switched to a photo editing mode to display tools necessary for editing a photo. The method of claim 12, wherein the control unit, And when the face of the particular person is enlarged, controlling to display a menu, an icon, or a thumbnail image which can be immediately returned to the original picture size. The method of claim 12, wherein the control unit, And controlling the enlarged face of the specific person to be further enlarged using a preset button, menu, or multi-touch method. The method of claim 15, wherein the control unit, And when the thumbnail image corresponding to the enlarged face is touched, controlling to return to the size before the enlargement further.

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