KR101587137B1 - Mobile terminal and method for controlling the same - Google Patents

Abstract

The present invention relates to a mobile terminal capable of rapidly enlarging and displaying a face of a selected person after recognizing a face of a person included in a photograph, and a control method thereof, A face of a person corresponding to the thumbnail image is directly enlarged in a predetermined size when one of the thumbnail images is selected, .

Description

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

The present invention relates to a mobile terminal capable of rapidly enlarging and displaying a face of a selected person after recognizing the faces of the persons included in the photograph, and a control method thereof.

The 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 can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

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 enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

Conventionally, a photograph can be taken using a camera built in a terminal, but the face portion of a specific person can not be quickly enlarged in the photographed photograph. In addition, it has not been possible to automatically cut out only a face portion of a specific person and save it separately, or automatically apply the cut-out photograph to an additional function such as a phone book. That is, the user can enlarge the face portion of a specific person through a plurality of operations or execute the image editing function of the additional function to cut or save the face portion of a specific person. As described above, conventionally, there is a problem that convenience is not provided because there is no linking function that can directly use photographed pictures.

The present invention provides a mobile terminal capable of rapidly enlarging and displaying a face of a specific person included in a photograph, and a control method thereof.

The present invention provides a mobile terminal capable of automatically recognizing faces of persons included in a photograph and displaying the faces as thumbnails, and a control method thereof.

The present invention provides a mobile terminal capable of enlarging a face portion of a person represented by a thumbnail and displaying the enlarged face portion in a full screen, and a control method thereof.

The present invention provides a mobile terminal and a control method thereof that can display any one of thumbnails displayed by a user so that the user can easily select one of the displayed thumbnails.

The present invention provides a mobile terminal capable of automatically cutting faces of people included in photographs according to a specific size and a control method thereof.

The present invention provides a mobile terminal capable of automatically storing a face photograph of a person indicated by a thumbnail and a control method thereof.

A mobile terminal according to an embodiment of the present invention for realizing the above-described object includes a camera, a display unit, and a display unit for recognizing the faces of the persons included in the specific pictures displayed on the display unit, And a control unit for directly displaying a face of a person corresponding to the thumbnail image in a predetermined size when the selected thumbnail image is selected.

According to another aspect of the present invention, there is provided a method for displaying an image, comprising the steps of: displaying a specific photo, entering a photo view mode, recognizing faces of the persons included in the specific photo, displaying the faces of the persons as a thumbnail image, The face of the person corresponding to the thumbnail image is directly enlarged and displayed in a predetermined size.

In the mobile terminal according to at least one embodiment of the present invention configured as described above, the face of each person is automatically recognized and displayed as a thumbnail in a portrait photograph, thereby enabling the user to easily select a face of a person to be enlarged have.

In addition, the present invention configured as described above has the effect of automatically cutting and saving a face photograph of a person represented by a thumbnail according to a size available in a specific additional function.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. 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.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

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 audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and 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 for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the 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 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. The broadcast management server may be a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to 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, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only (DVF-H) And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

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 radio signals to 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 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. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

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

Referring to FIG. 1, an A / V (Audio / Video) 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 an image frame such as a still image or a moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can 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 depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as 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. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

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

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates 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 is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

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, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an 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 embodiment 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 each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

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

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 a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor 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. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects 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, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio 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 mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 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 module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the 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 may be classified as a part of the alarm unit 153.

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

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory 160 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 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

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), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the 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 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 general user authentication module 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 terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal 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, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

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 various embodiments described herein may be embodied 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, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

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

2A is a perspective view of an example of a mobile terminal or a mobile terminal according to the present invention.

The disclosed mobile terminal 100 has a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

The cases may be formed by injection molding a synthetic resin or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

The display unit 151, the sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the front body 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 the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated 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 operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents inputted by the first or second operation unit 131 or 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 further mounted on the rear surface 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 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. 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 additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the 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 built in the terminal body or may be detachable from the outside of the terminal body.

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all 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 correlation with the display portion 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have a size equal to or smaller than that of 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. At least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement for inputting such information, thereby being implemented as 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 the terminal configured as above will be described with reference to the accompanying drawings. The following embodiments can be used alone or in combination with each other. In addition, the embodiments described below may be used in combination with the above-described user interface (UI).

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

3A to 3C illustrate a method of recognizing faces of persons included in a photograph and displaying the faces as a thumbnail image according to the present invention.

As shown in FIG. 3A, a portrait is displayed on the display unit 151. FIG. The portrait photograph may be a photograph displayed on a preview screen during photographing (310). Further, the portrait photograph may be a photograph displayed on a review screen after photographing (311). Also, the portrait photograph may be any one of the photographs stored in the photo album (312).

In the present embodiment, the face recognition function can be applied to a preview screen displayed for photographing, a review screen displayed after photographing, or any one of photographs already photographed, It can also be applied to photographs. The controller 180 recognizes the faces of the persons included in the portrait (313).

The control unit 180 controls the overall contour of the face, skin tone information and the feature information of the face component such as eyes, nose, mouth, eyebrows or ears , Angle, shape) can be detected.

And displays the recognized faces in a preset manner. For example, as shown 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 (e.g., left, right, top, bottom) of the screen.

As shown in FIG. 3C, the controller 180 may display the frames 331 and 332 of a specific shape on the face portion of the portrait. Here, the size of the frame may be displayed differently in proportion to the face size of each person. For example, a large size frame may be displayed on a large face, and a small size frame may be displayed on a small face.

The shape of the thumbnail or frame may be displayed in a predetermined shape (e.g., a rectangle, a circle, an oval, or a star). May be displayed to have different attributes (e.g., color, contrast, thickness, hint line (eg dotted line, solid line), highlight). The attribute may be displayed differently from the first recognized face if the recognized face already exists. For example, the first recognized face is indicated by a blue solid line, and if the face of the recognized person is already stored, it can be displayed to blink with a red dotted line.

The thumbnail image or the frame may be individually selected by the user.

The control unit 180 may enlarge the thumbnail image or the face portion of the person corresponding to the frame selected by the user in a predetermined size. For example, if the predetermined size is a full screen, the face portion may be enlarged and displayed in full screen.

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

FIGS. 4A through 4C illustrate a method of selecting a person displayed as a thumbnail image according to the present invention.

As described above, the control unit 180 recognizing the face in the portrait photograph can 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.

On the other hand, since the thumbnail image is small in size, it may be difficult for the user to select a thumbnail image. Accordingly, in order to facilitate selection of the thumbnail image, the controller 180 may detect a proximity touch to the thumbnail image and adjust the size of the thumbnail image. For example, as shown in FIG. 4A, (Or selecting means) approaches the specific thumbnail image, the size of the specific thumbnail image can be automatically enlarged. And conversely, as the finger moves away from the thumbnail image, the size of the thumbnail image can be restored to its original size. By adjusting the size of the thumbnail image as described above, the user can easily select a thumbnail image of a desired person.

4B, when the user selects a specific thumbnail image 321, the control unit 180 may directly enlarge the face portion of the person corresponding to the thumbnail image and display it in full screen . For this selection, the user can make one-touch or double-touch the thumbnail image. Alternatively, the user may drag or flick the thumbnail image toward the center of the screen in the state of being touched.

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

In addition, another predetermined method may be used to restore the portrait photograph. For example, you can double-touch a face enlarged by a full screen, flick an enlarged face in one direction, or touch an enlarged face to obtain a specific shape (for example, a straight line or a circle) Right, left, and thumbnail), the controller 180 can display the portrait of the original size immediately. Alternatively, if there is no touch input or key input for a predetermined time after enlarging the face as described above, the controller 180 can automatically display the portrait of the original size.

The reason for enlarging the face as described above is to look more closely at the face and to check whether or not there is a smudge on the face. Accordingly, when the face of a specific person is enlarged to the full screen as described above, it is possible to display the tools for editing the picture on one side of the screen according to the preset option. For example, as shown in FIG. 4C, when the face of a specific person is enlarged to full screen as described above, the control unit 180 can automatically change the mode to the photo editing mode in the photo view mode. And display tools (333) for image (or photo) editing on one side of the screen.

Here, the photo view mode may be 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 mode in which the photograph can be edited is referred to as a photo editing mode.

When the full screen is released, that is, when a portrait photograph of the original size is displayed, the controller 180 can automatically return to the picture view mode in the picture edit mode. In the photo editing mode, the user can cleanly correct the face portion, draw a picture, or input additional information such as text. Or to modify facial features, insert dimples, or brighten dark skin tones.

5A and 5B illustrate a method of selecting and enlarging a person represented by a frame according to the present invention.

As shown in FIG. 5A, the controller 180 recognizing the face in the portrait photographs can display the frames 331 and 332 having predetermined shapes and attributes in a superimposed manner on the faces of the persons.

When the user touches or touches a face portion of a specific person indicated by the frame, the controller 180 directly enlarges the face portion of the person corresponding to the frame and displays the face portion in full screen have.

When the face of a specific person is enlarged to the full screen as described above, the control unit 180 can automatically change the photo view mode to the photo edit mode. In the photo editing mode, the user can correct the enlarged face or input additional information. When the full screen is released, that is, when a portrait photograph of the original size is displayed, the control unit 180 can automatically return the photo editing mode to the photo view mode.

In the same manner as the face enlarging method using the thumbnail image, when the face portion of a specific person is enlarged to a full screen, the controller 180 can provide methods for returning to the portrait of the original size. The specific methods have been described with reference to FIG. 4 and therefore will not be described here.

On the other hand, after enlarging the face of a specific person to the full screen, the user can enlarge the face image more greatly by using the photo enlarging button or the photo enlarging menu. The enlarged face image can be returned to the face image of the original size when the already displayed thumbnail image corresponding to the face is touched. Or may be further enlarged or reduced using multi-touch. For example, as shown in FIG. 5B, when the two portions of the enlarged portion are touched with two fingers and the two fingers are spread to both sides, the enlarged portion can be enlarged.

FIG. 6 is a diagram illustrating an example of a method of utilizing faces recognized in a portrait photograph according to the present invention.

As described above, when the face recognizer recognizes the face (S101), the controller 180 can compare the recognized face with the recognized face information of the recognized person (S102). For example, the recognized face information may be stored in an arbitrary database (e.g., a first database or a face recognition information database) 351. The face recognition function may detect only the face contour information or may detect various characteristic information related to the face. Further, the database can additionally manage the person information (e.g., name, telephone number, mail address, and relationship with the user) corresponding to each face.

The controller 180 compares newly recognized faces 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). Further, a photograph related to the recognized person may be further mapped to the same person (S104). The mapping may map a photograph of only a face portion, or may map a whole photograph (e.g., a group portrait photograph) including a person corresponding to the face. Here, the images mapped to the respective persons may be stored in a separate database (e.g., a second database or a portrait database) 352. As described above, when the person information to be matched with the newly recognized face is stored, the controller 180 automatically adds the newly recognized face image to the photograph related to the person.

One or more photographs stored in the second database 352 may be stored for the same person. In addition, a photo mapped to each person can be used for an arbitrary function (e.g., phone book function) provided in the mobile terminal. If there is no person information matching the newly recognized face, it can be registered manually (S105).

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

FIG. 7 is a diagram illustrating a method of registering face information of faces recognized in a photograph according to the present invention.

As described above, when recognizing a face in a portrait, the control unit 180 may display the face portion as a thumbnail image or display a face of a specific shape on the face portion. The photographing state can be confirmed or corrected by enlarging the thumbnail image or the face of the person selected in the frame to a full screen.

Accordingly, the user who has confirmed or corrected the photograph state can store the face photograph as information related to the specific function. For example, when the user touches the thumbnail or the frame with a long touch, the control unit 180 may display menus capable of processing the face photograph. The menus may include a menu 361 for storing the face photographs in the phonebook. If the menu 361 is selected, the control unit 180 may cut out the face photograph according to the size registerable in the phone book, and automatically save the face photograph.

If the thumbnail image or the size of the frame is equal to the size that can be registered in the phonebook (S201), the face image of the thumbnail image or the frame may be cut and registered in the phonebook (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), the thumbnail image may be cut off from the original portrait image to fit the size (S204). Then, the photograph of the cut face portion can be registered in the phone book (S205).

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

In accordance with the user's menu operation, the control unit 180 enters the picture view mode (S301).

In the picture view mode, the controller 180 outputs an arbitrary picture to the display unit 151 (S302). The arbitrary picture may be any one of a picture output 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 control unit 180 recognizes the faces of the people included in the photograph according to the preset options (S303). Any known face recognition algorithm may be selectively used to recognize the face.

Then, the recognized face of each person is displayed as a thumbnail image (S304). Or a frame of a predetermined shape or attribute can be superimposed on the face of each person. If the information of the recognized person is already stored, the information may be displayed when the thumbnail or the frame is displayed.

If the number of characters included in the photograph is large, a thumbnail image may be increased. Accordingly, the controller 180 may arrange the thumbnail images of the faces of the persons in a predetermined manner. For example, they can be arranged in a line on one side of the screen. Or at a position designated by the user.

The user can select any one of the thumbnail images. Or one of the frames.

If one of the thumbnail images is selected (S305), the controller 180 enlarges the face of the person corresponding to the thumbnail image to a predetermined size and displays the enlarged image (S306). The predetermined size includes a full screen size.

On the other hand, when the face of the specific person is enlarged, the controller 180 can switch to the photo editing mode. And may store the corrected or edited picture in the picture edit mode. When receiving a specific key or a specific touch input in a predetermined manner, the control unit 180 can reduce the size of the enlarged picture and display the original picture.

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

Here, the terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, but should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

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

FIG. 2A is a front perspective view of a portable terminal according to an embodiment of the present invention; FIG.

FIG. 2B is a rear perspective view of a portable terminal according to an embodiment of the present invention; FIG.

3A to 3C illustrate a method of recognizing faces of persons included in a photograph and displaying the faces as a thumbnail image according to the present invention.

FIGS. 4A through 4C illustrate a method of selecting a person displayed as a thumbnail image according to the present invention. FIG.

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

6 is a diagram illustrating an example of a method of utilizing faces recognized in a portrait photograph according to the present invention.

FIG. 7 illustrates an example of a method for registering face information of a face recognized in a photograph according to the present invention. FIG.

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

Claims (16)

Entering a photo view mode; Displaying a specific picture in the picture viewing mode; Recognizing a face included in the specific photograph; Displaying the recognized face as a thumbnail image; Displaying the stored person information of the specific person together with the thumbnail image when the recognized face corresponds to face information of a specific person among the face information of the previously stored persons, Storing at least a portion of the particular photograph so that at least a portion of the particular photograph matches the particular person; And When the thumbnail image is selected, directly enlarging the face of the person corresponding to the thumbnail image to a predetermined size. Wherein the face information of the pre-stored characters further includes the recognized face. The method according to claim 1, While the camera is shooting, The photo that was output on the review screen after the camera was shot, or And photographs retrieved from a photo album. The method according to claim 1, Wherein the mobile terminal includes a full screen size. The method of claim 1, wherein, when the face of the person corresponding to the thumbnail image is enlarged, And automatically switching to a photo editing mode to display the tools necessary for photo editing. The method of claim 1, wherein, when the face of the person corresponding to the thumbnail image is enlarged, And displaying a menu, an icon or a thumbnail image that can be immediately returned to the original picture size. The method according to claim 1, The face can be further enlarged by using a preset button or a menu or a multitouch method. When a thumbnail image corresponding to the enlarged face is touched, it is immediately returned to the size before enlargement. A method of controlling a terminal. 2. The method of claim 1, And displaying a frame having a predetermined shape or attribute instead of the thumbnail image on a face of a person corresponding to the thumbnail image. 8. The method of claim 7, wherein when the frame is selected, Further comprising the step of directly enlarging the displayed face of the frame to a predetermined size and displaying the enlarged face. 8. The apparatus of claim 7, And the sizes of the frames are displayed differently in proportion to the face size of each person. 2. The method of claim 1, If the face information corresponding to the recognized face does not exist among the face information of the previously stored persons, storing the person information on the recognized face based on the user input. Control method of terminal delete A display unit; A memory unit; And Controls the display unit to output a specific picture in the picture view mode, Recognizing a face of a person included in the specific photograph, Displaying the recognized face as a thumbnail image, Displaying the stored person information of the specific person together with the thumbnail image when the recognized face corresponds to face information of a specific person among the face information of the people previously stored in the memory, Storing at least a portion of the particular photograph so that at least a portion of the particular photograph matches the particular person, And a controller for directly enlarging a face of the person corresponding to the thumbnail image in a predetermined size when the thumbnail image is selected, Wherein the face information of the pre-stored characters further includes the recognized face. 13. The apparatus according to claim 12, Wherein when the face of the person corresponding to the thumbnail image is enlarged, the controller automatically switches to the photo editing mode to display the tools necessary for photo editing. 13. The apparatus according to claim 12, When the face of the person corresponding to the thumbnail image is enlarged, displays a menu, an icon, or a thumbnail image that can be immediately returned to the original picture size. 13. The apparatus according to claim 12, Wherein the control unit controls the face of the person corresponding to the thumbnail image to further enlarge the face by using a preset button, a menu, or a multi-touch method. 16. The apparatus of claim 15, And controls to return to the size before the enlargement if the thumbnail image corresponding to the enlarged face is touched.

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