KR20140094135A - Mobile terminal and Operationg method thereof - Google Patents

Mobile terminal and Operationg method thereof Download PDF

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Publication number
KR20140094135A
KR20140094135A KR1020130006434A KR20130006434A KR20140094135A KR 20140094135 A KR20140094135 A KR 20140094135A KR 1020130006434 A KR1020130006434 A KR 1020130006434A KR 20130006434 A KR20130006434 A KR 20130006434A KR 20140094135 A KR20140094135 A KR 20140094135A
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KR
South Korea
Prior art keywords
image
camera
mobile terminal
user
input
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Application number
KR1020130006434A
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Korean (ko)
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KR102020943B1 (en
Inventor
김용수
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엘지전자 주식회사
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Priority to KR1020130006434A priority Critical patent/KR102020943B1/en
Publication of KR20140094135A publication Critical patent/KR20140094135A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/60—Editing figures and text; Combining figures or text
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly

Abstract

An operating method of a mobile terminal according to the present invention includes: a step of entering a self photography mode; a step of turning on first and second cameras; a step of displaying a preview image which is formed by synthesizing a first image inputted from the first camera and a second image inputted from the second camera; and a step of storing the preview image.

Description

[0001] The present invention relates to a mobile terminal and an operation method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal and an operation method thereof, and more particularly, to a mobile terminal capable of compositing, displaying, and storing images input through a front camera and a rear camera of a mobile terminal, respectively, and an operation method thereof.

A mobile terminal is a portable device having one or more functions capable of carrying out voice and video communication, a function of inputting or outputting information, and a function of storing data while being portable. As the function of the mobile terminal is diversified, it has complicated functions such as photographing and photographing of a movie, playback of a music file or a video file, reception of a game, broadcasting, wireless Internet, etc., and a comprehensive multimedia player .

In addition, the mobile terminal includes a front camera as well as a rear camera, and is capable of self-photographing. However, when shooting a user image together with a background in self-photographing, such as when traveling alone, there is a limit to the distance the user can reach with his / her arm, so that only the user's face is enlarged and it is difficult to photograph the background of the desired composition .

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a mobile terminal and a method of operating the same, which can appropriately combine a user image input by a front camera and a background image input by a rear camera,

According to another aspect of the present invention, there is provided a method of operating a mobile terminal, including: entering a self-photographing mode, turning on a first camera and a second camera, Displaying a preview image obtained by synthesizing an image and a second image input from the second camera, and storing the preview image.

According to another aspect of the present invention, there is provided an image processing apparatus including a first camera for receiving a first image and a second camera for receiving a second image, a controller for combining the first image and the second image, A display unit for displaying the preview image, and a memory for storing the preview image.

According to the present invention, an image can be synthesized based on raw data of an image input through a plurality of cameras, so that the synthesized image can be natural.

Also, since the background image and the user image are matched while checking the preview image obtained by synthesizing the images input in real time, the user can easily photograph the desired image.

Further, in the case of shopping, it is possible to estimate whether or not the clothes are appropriate without using clothes, by using a preview image in which a clothes image and a user image are synthesized, thereby increasing the usability of the user.

1 is a block diagram of a mobile terminal according to an exemplary embodiment of the present invention;
FIG. 2 is a perspective view of a mobile terminal according to an exemplary embodiment of the present invention,
FIG. 3 is a rear perspective view of the mobile terminal shown in FIG. 2,
4 is a flowchart illustrating a method of operating a mobile terminal according to an exemplary embodiment of the present invention, and FIG.
5A to 8C are diagrams for explaining an operation method of a mobile terminal according to an embodiment of the present invention together with a screen displayed on a display unit.

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

Examples of the mobile terminal described in the present specification include a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a camera, tablet computers, e-book terminals, and the like. In addition, suffixes "module" and " part "for the components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention. Referring to FIG. 1, a mobile terminal according to an exemplary embodiment of the present invention will be described in terms of functional components.

1, 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, an interface unit 170, a control unit 180, and a power supply unit 190. When such components are implemented in practical applications, two or more components may be combined into one component, or one component may be divided into two or more components as necessary.

The wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 113, a wireless Internet module 115, a short distance communication module 117, and a GPS module 119.

The broadcast receiving module 111 receives at least one of a broadcast signal and broadcast related information from an external broadcast management server through a broadcast channel. The broadcast management server may refer to a server for generating and transmitting at least one of a broadcast signal and broadcast related information and a server for receiving at least one of the generated broadcast signal and broadcast related information and transmitting the broadcast signal to the terminal.

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 mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast-related information can also be provided through a mobile communication network, in which case it can be received by the mobile communication module 113. Broadcast-related information can 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).

The broadcast receiving module 111 receives broadcast signals using various broadcasting systems. In particular, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) ), Digital Video Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. In addition, the broadcast receiving module 111 may be configured to be suitable for all broadcasting systems that provide broadcasting signals, as well as the digital broadcasting system. 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 113 transmits and receives a radio signal to at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data according to a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The wireless Internet module 115 refers to a module for wireless Internet access, and the wireless Internet module 115 can be embedded in the mobile terminal 100 or externally. 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 117 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 the short distance communication technology.

A GPS (Global Position System) module 119 receives position information from a plurality of GPS satellites.

The 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 123. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. Then, 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. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 123 receives an external sound signal by 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 113 and output when the voice data is in the call mode. The microphone 123 may be a variety of noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 130 generates key input data that the user inputs to control the operation of the terminal. The user input unit 130 may include a key pad, a dome switch, and a touch pad (static / static) capable of receiving commands or information by a push or touch operation of a user. The user input unit 130 may be a jog wheel for rotating the key, a jog type or a joystick, or a finger mouse. Particularly, when the touch pad has a mutual layer structure with the display unit 151 described later, it can be called a touch screen.

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, Thereby generating a sensing signal. 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. In addition, a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is coupled to an external device, and the like can be handled.

The sensing unit 140 may include a sensing sensor 141, a pressure sensor 143, a motion sensor 145, and the like. The detection sensor 141 detects the presence of an object approaching the mobile terminal 100 or an object existing in the vicinity of the mobile terminal 100 without mechanical contact. The detection sensor 141 can detect a nearby object by using a change in the alternating magnetic field or a change in the static magnetic field, or a rate of change in the capacitance.

The pressure sensor 143 can detect whether or not pressure is applied to the mobile terminal 100, the magnitude of the pressure, and the like. The pressure sensor 143 may be installed at a portion where the pressure of the mobile terminal 100 is required according to the use environment. When the pressure sensor 143 is installed on the display unit 151, the touch input through the display unit 151 and the pressure applied by the touch input The pressure touch input can be identified. Also, the magnitude of the pressure applied to the display unit 151 at the time of the pressure touch input can be determined according to the signal output from the pressure sensor 143. [

The motion sensor 145 senses the position or movement of the mobile terminal 100 using an acceleration sensor, a gyro sensor, or the like. An acceleration sensor that can be used for the motion sensor 145 is a device that converts an acceleration change in one direction into an electric signal and is widely used along with the development of MEMS (micro-electromechanical systems) technology. The gyro sensor is a sensor for measuring the angular velocity, and it can sense the direction of rotation with respect to the reference direction.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 153, an alarm unit 155, and a haptic module 157.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal 100 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 or received images can be displayed individually or simultaneously, and the UI and the GUI are displayed.

Meanwhile, as described above, when the display unit 151 and the touch pad have a mutual layer structure to constitute a touch screen, the display unit 151 may be an input device capable of inputting information by a user's touch in addition to the output device Can also be used.

If the display unit 151 is configured as a touch screen, it may include a touch screen panel, a touch screen panel controller, and the like. In this case, the touch screen panel is a transparent panel that is attached to the outside, and can be connected to the internal bus of the mobile terminal 100. The touch screen panel keeps a watch on the contact result, and if there is a touch input, sends the corresponding signals to the touch screen panel controller. The touch screen panel controller processes the signals, and then transmits corresponding data to the controller 180 so that the controller 180 can determine whether the touch input has been made and which area of the touch screen has been touched.

The display unit 151 may be formed of an e-paper. Electronic paper (e-Paper) is a kind of reflective display, and has excellent visual characteristics such as high resolution, wide viewing angle and bright white background as conventional paper and ink. The electronic paper (e-paper) can be implemented on any substrate such as plastic, metal, paper, and the image is retained even after the power is shut off, and the battery life of the portable terminal 100 is long Can be maintained. In addition, the display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three- (3D display).

The audio output module 153 outputs 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, In addition, the sound output module 153 outputs sound signals related to functions performed in the mobile terminal 100, for example, call signal reception tones, message reception tones, and the like. The sound output module 153 may include a speaker, a buzzer, and the like.

The alarm unit 155 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal 100 include call signal reception, message reception, and key signal input. The alarm unit 155 outputs a signal for notifying the occurrence of an event in a form other than an audio signal or a video signal. The alarm unit 155 can output a signal to notify when a call signal is received or a message is received. Also, when the key signal is inputted, the alarm unit 155 can output the signal as the feedback to the key signal input. The user can recognize the occurrence of an event through the signal output by the alarm unit 155. A signal for notifying the occurrence of an event in the mobile terminal 100 may also be output through the display unit 151 or the sound output module 153. [

The haptic module 157 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 157 is a vibration effect. When the haptic module 157 generates vibration with a haptic effect, the intensity and pattern of the vibration generated by the haptic module 157 can be converted, and the different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 157 may be provided with a function of stimulating by a pin arrangement vertically moving with respect to the contact skin surface, an effect of stimulating air through the injection or suction force of the air through the injection port or the suction port, The effect of stimulation through contact of an electrode (eletrode), the effect of stimulation by electrostatic force, and the effect of reproducing a cold sensation using a device capable of endothermic or exothermic can be generated. The haptic module 157 can be implemented not only to transmit the tactile effect through direct contact but also to feel the tactile effect through the muscular sense of the user's finger or arm.

The memory 160 may store a program for processing and controlling the control unit 180 and may store a function for temporarily storing input or output data (e.g., a phone book, a message, a still image, .

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 , And a ROM. ≪ / RTI > In addition, the portable terminal 100 may operate a web storage for storing the memory 150 on the Internet.

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. Examples of the external device connected to the mobile terminal 100 include a wired / wireless headset, an external charger, a wired / wireless data port, a memory card, a SIM (Subscriber Identification Module) card, a UIM An audio input / output (I / O) terminal, a video I / O (input / output) terminal, and an earphone. The interface unit 170 may receive data from the external device or supply power to the respective components in the mobile terminal 100 and may transmit data in the mobile terminal 100 to the external device .

When the mobile terminal 100 is connected to an external cradle, the interface unit 170 provides power to the mobile terminal 100 from a cradle connected thereto, And may be a passage to be transmitted to the terminal 100.

The controller 180 typically controls the operation of the respective units to control the overall operation of the mobile terminal 100. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 may include a multimedia playback module 181 for multimedia playback. The multimedia playback module 181 may be configured in hardware in the controller 180 or separately from software in the controller 180. [

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 mobile terminal 100 having such a configuration can be configured to be operable in a communication system capable of transmitting data through a frame or a packet, including a wired / wireless communication system and a satellite-based communication system. have.

FIG. 2 is a perspective view of a mobile terminal according to an embodiment of the present invention, and FIG. 3 is a rear perspective view of the mobile terminal shown in FIG. Hereinafter, with reference to FIG. 2 and FIG. 3, a mobile terminal according to the present invention will be described in terms of components according to the external appearance. Hereinafter, for convenience of description, a bar type mobile terminal having a front touch screen among various types of mobile terminals such as a folder type, a bar type, a swing type, a slider type, etc. will be described as an example. However, the present invention is not limited to the bar-type mobile terminal but can be applied to all types of mobile terminals including the above-mentioned types.

Referring to FIG. 2, the case constituting the appearance of the mobile terminal 100 is formed by the front case 100-1 and the rear case 100-2. A circuit board and a flexible circuit board on which various electronic components are mounted are installed in a space formed by the front case 100-1 and the rear case 100-2. The front case 100-1 and the rear case 100-2 may be formed by injection molding synthetic resin or may be formed of a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the first sound output module 153a, the first camera 121a, and the first through third user input units 130a, 130b, and 130c are connected to the main body, specifically, the front case 100-1 . A fourth user input unit 130d, a fifth user input unit 130e, and a microphone 123 may be disposed on a side surface of the rear case 100-2.

The display unit 151 may be constructed such that the touch pad is overlapped with the layer structure so that the display unit 151 operates as a touch screen so that information can be input by a user's touch.

The first acoustic output module 153a may be implemented in the form of a receiver or a speaker. The first camera 121a may be implemented in a form suitable for capturing an image or a moving image of a user. The microphone 123 may be implemented in a form suitable for receiving a user's voice, other sounds, and the like.

The first through fifth user input units 130a 130b 130c 130d and 130e and the sixth and seventh user input units 130f and 130g described below may be collectively referred to as a user input unit 130, Any manner can be employed in a tactile manner.

For example, the user input unit 130 may be embodied as a dome switch or a touch pad capable of receiving a command or information by a push or touch operation of a user, or may be a wheel, a jog type, a joystick, Or the like. In a functional aspect, the first to third user input units 130a, 130b and 130c are for inputting commands such as start, end, and scroll, and the fourth user input unit 130d is for inputting a selection of an operation mode, . In addition, the fifth user input unit 130e may operate as a hot-key for activating a special function in the mobile terminal 100. [

 3, a second camera 121b may be additionally mounted on a rear surface of the rear case 100-2. On the side surface of the rear case 100-2, a sixth and a seventh user input units 130f, 130g, and an interface unit 170 may be disposed.

The second camera 121b has a photographing direction substantially opposite to that of the first camera 121a, and may have pixels different from those of the first camera 121a.

The interface unit 170 can be used as a path for exchanging data with an external device. In addition, antennas for receiving broadcasting signals (not shown) may be disposed in one area of the proton case 100-1 and the rear case 100-2, in addition to the antennas for communication and the like. The antenna may be installed to be capable of being drawn out from the rear case 100-2.

A power supply unit 190 for supplying power to the mobile terminal 100 may be mounted on the rear case 100-2. The power supply unit 190 may be a rechargeable battery, for example, and may be detachably coupled to the rear case 100-2 for charging or the like.

In the above description, the second camera 121b and the like are disposed in the rear case 100-2, but the present invention is not limited thereto. Also, the first camera 121a may be rotatably formed so that the second camera 121b can be photographed up to the photographing direction, even if the second camera 121b is not separately provided.

In the foregoing, the configuration of the mobile terminal 100 according to the present invention has been described with reference to FIG. 1 to FIG. Hereinafter, a mobile terminal capable of self-composition shooting using the first camera 121a and the second camera 121b and an operation method thereof will be described in detail.

FIG. 4 is a flowchart illustrating an operation method of a mobile terminal according to an exemplary embodiment of the present invention, and FIGS. 5A to 8C are diagrams for explaining an operation method of the mobile terminal.

Referring to FIG. 4, the mobile terminal may enter the self-composite shooting mode by executing a camera application (S210).

In the self-composite shooting mode, an image obtained by synthesizing the images input from the first camera 121a and the second camera 121b can be taken. If the self-composite shooting mode is entered, the control unit 180 controls the first camera 121a and the second camera 121b are turned on (S220).

5A, the first camera 121a is a camera disposed on the front surface of the front case 100-1 of the mobile terminal, and the second camera 121b is a camera disposed on the rear surface of the rear case 100-2. As shown in FIG.

Accordingly, when the first camera 121a and the second camera 121b are turned on, the first image and the second image can be input respectively (S230). A first image 310 including an image of a user located at the front of the mobile terminal 100 may be input to the first camera 121a and a second image may be input to the second camera 121b at a rear side of the mobile terminal 100 A second image 320 including a background image such as a structure may be input.

A preview image obtained by synthesizing the first image 310 input from the first camera 121a and the second image 320 input from the second camera 121b may be displayed on the display unit 151 S240).

The first image 310 and the second image 320 may be preview images input from the first camera 121a and the second camera 121b in real time, respectively. Accordingly, the first image 310 and the second image 320 are displayed on the display unit 151 according to the movement of the mobile terminal 100, that is, the photographing angles of the first camera 121a and the second camera 121b And can be displayed in a variable manner.

Also, the first image 310 may include a user image. At this time, the control unit 180 recognizes the human image in the first image 310 input from the first camera 121a, and can extract and display only the user image automatically.

5B, when the user selects a predetermined area 315 of the first image 310 displayed on the display unit 151 using the touch pen or the finger, only the image of the selected area is displayed on the second image 320).

At this time, the extracted user image or the image of the selected region may be displayed at the center of the preview image or may be displayed in a predetermined specific region.

Meanwhile, the second image 320 may include a background image. At this time, the second image 320 inputted in real time may be stopped and displayed on the display unit 151 by the user input.

For example, as shown in FIG. 5C, when an input for touching the area of the display unit 151 on which the second image 320 is displayed is received using a hand or a touch pen, The second image 320 can be displayed on the display unit 151 by stopping.

Alternatively, when the user touches the area of the display unit 151 on which the stopped second image is displayed, the second image 320 inputted from the second camera 121b in real time is displayed on the display unit 151 again, .

An image at a time point at which a user wants to view a second image input from the second camera 121b can be fixed and displayed as a background image on the display unit 151 by performing the operation as described above.

In addition, the first image can also be stopped and displayed through the user input in the same manner as described above, and the image at the time when the user desired user image is displayed can be fixedly displayed on the display unit 151 and displayed.

On the other hand, the position and size of the first image and the second image can be changed.

5D, when the first touch point 340 and the second touch point 345 in the area where the first image 310 is displayed are brought close to each other using the multi-touch, The size of the first image 310 can be enlarged when the first touch point 340 and the second touch point 345 are moved away from each other.

Alternatively, the specific area included in the first image may be reduced or enlarged by using the zoom-in / zoom-out function. Also, as shown in FIG. 5E, the first image 310 can be dragged and moved to a position desired by the user.

5F, when the photographing button 350 is pressed, the combined preview image displayed on the display unit 151 is displayed on the memory 160 in a state where the preview image in which the first image and the second image are combined is displayed, (S250).

The self-composite shooting function described in the above embodiment is a method in which the background image and the user image are shot and stored, respectively, and then the stored images are synthesized, The synthesized image can be natural.

In addition, since the background image and the user image are matched while checking the preview image obtained by synthesizing the images input in real time, the user can easily match and photograph the desired image, as compared with the case where the background image and the user image are respectively captured and synthesized .

Meanwhile, the mobile terminal according to the embodiment of the present invention can separately photograph the first image and the second image without photographing them at the same time. In this case, the first image may be an image captured by a first camera 121a, and the second image may be an image captured by a second camera 121b, which is a rear camera.

For example, if any one of the first image and the second image is first photographed, and then the camera conversion object 430 is selected, the photographed direction is changed and the other one can be photographed.

Therefore, after the first image is first photographed, the second image can be photographed after changing the photographing direction by using the camera conversion object 430. [ Alternatively, the first image can be photographed after the second image is first photographed, and then the photographing direction is changed using the camera conversion object 430. [

Hereinafter, a case where a second image is first photographed and a first image is photographed will be described.

When the user selects the second image capturing, a preview 420 of the second image input from the second camera 121b may be displayed on the display unit 151. As shown in FIG. 6A, You can shoot the structure at the rear. At this time, it is possible to display a second image capturing message 435 on the display unit 151. [

When the second image 420 is photographed using the photographing button 450, the first image 410 can be photographed as shown in FIG. 6B. At this time, the first image 410 input from the first camera 121a may be superimposed on the second image (background image) 420, and displayed on the display unit 151 as a preview.

For example, if the transparency of the second image (background image) 420 captured by the second camera 121b on the display unit 151 is greater than the transparency of the first image 410 input to the first camera 121a The first image 410 may be displayed on the transparent second image (background image) 420. In this case,

At this time, the first image 410 may be a user image extracted only from the human image, and may be displayed at the center of the display unit 151. 5C to 5E, the size and position of the first image 410 can be changed by user input.

Accordingly, a preview image in which the second image 420 captured and the first image 410 input to the first camera 121a are synthesized may be displayed on the display unit 151. FIG. At this time, when the user presses the photographing button 450 or receives an input for touching the first image 410, the combined preview image displayed on the display unit 151 may be photographed and stored in the memory 160.

Accordingly, when the user is required to take a picture of himself / herself by using the function of the mobile terminal as described above, the user can photograph a picture by variously adjusting the composition of the background image, Convenience can be increased.

7A and 7B, when a shopping is performed, a desired clothes image is input to the second image 520, a user's image is input to the first image 510, By checking or photographing the composite preview image 530 displayed on the part 151, it is possible to estimate whether or not the clothes fit together without wearing the clothes, and the user's convenience of use can be increased.

Meanwhile, the stored composite image can be shared with other users, and another user can change any one of the first image and the second image to a different image and synthesize them in the shared composite image.

For example, if a shared composite image is a composite of an image 310 of a first user and a background image 320, as shown in FIG. 8A, a second user sharing the composite image may be an image of a first user The background image 310 may be changed to the image 610 of the second user of FIG. 8B to be combined with the background image 320.

At this time, the image 610 of the second user may be a preview image input to the camera or a pre-stored image. When the second user image 610 is synthesized with the background image 320, it is automatically adjusted to the same size and position as the image 310 of the first user, as shown in FIG. 8C, .

In addition, when sharing an image including a clothes image (not shown), the shared clothes image may be used as a background image, and an image of a second user input by the camera may be synthesized and displayed as a preview.

Thus, even if you do not go to the store and try on clothes, you can share the image of the clothes and synthesize them with the user image to gauge whether or not the clothes fit.

Meanwhile, the present invention can be implemented as a code readable by a processor in a processor-readable recording medium provided in a mobile terminal. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium readable by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and also a carrier wave such as transmission over the Internet. In addition, the processor readable recording medium may be distributed over networked computer systems so that code readable by the processor in a distributed manner can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention.

110: wireless communication unit 130: user input unit
140: sensing unit 150: output unit
160: memory 170: interface section
180: control unit 190: power supply unit

Claims (7)

Entering a self-photographing mode;
Turning on the first camera and the second camera;
Displaying a preview image obtained by synthesizing a first image input from the first camera and a second image input from the second camera; And
And storing the preview image. The method according to claim 1,
Wherein the preview image is a composite image of the first image and the second image input in real time. The method according to claim 1,
In the step of displaying the preview image,
Wherein one of the first image and the second image is superimposed on the other image in a transparent manner. The method according to claim 1,
Further comprising receiving an input to select some images included in the first image,
In the step of displaying the preview image,
And the selected image is combined with the second image and displayed. The method according to claim 1,
Extracting a human image from the first image,
And the extracted user image is combined with the second image and displayed. The method according to claim 1,
Wherein at least one of the first image and the second image displayed in the preview image is zoom-in / zoom-out-displayed in the preview image, or is moved and displayed. A first camera receiving a first image and a second camera receiving a second image;
A controller for combining the first image and the second image;
A display unit for displaying the synthesized preview image; And
And a memory for storing the preview image.
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KR20190094040A (en) * 2018-02-02 2019-08-12 천종윤 A mobile terminal for generating a photographed image and a method for generating a photographed image

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JP2012249175A (en) * 2011-05-30 2012-12-13 Olympus Imaging Corp Imaging apparatus, display method, and program

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US20120120186A1 (en) * 2010-11-12 2012-05-17 Arcsoft, Inc. Front and Back Facing Cameras
JP2012249175A (en) * 2011-05-30 2012-12-13 Olympus Imaging Corp Imaging apparatus, display method, and program

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Publication number Priority date Publication date Assignee Title
KR20160048532A (en) * 2014-10-24 2016-05-04 엘지전자 주식회사 Mobile terminal and method for controlling the same
KR20190094040A (en) * 2018-02-02 2019-08-12 천종윤 A mobile terminal for generating a photographed image and a method for generating a photographed image

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