KR101717532B1 - Mobile terminal and method for controlling the same - Google Patents

Abstract

The present invention relates to a mobile terminal capable of intuitively controlling a wide angle camera and a control method thereof. More specifically, the present invention relates to an image processing apparatus including a memory, a touch screen, a first camera, a second camera having a wider angle than the first camera, and a first preview image When the photographing instruction is received, storing a first image photographed through the first camera, and if the preview image satisfies the wide-angle photographing condition, And a control unit for storing the second image together.

Description

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

The present invention relates to a mobile terminal and a control method thereof, in which usage of a terminal can be realized by further considering convenience of a user.

A terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved. The mobile terminal can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the mobile terminal.

The functions of mobile terminals are diversified. For example, there are data and voice communication, photographing and video shooting through a camera, voice recording, music file playback through a speaker system, and outputting an image or video on a display unit. Some terminals are equipped with an electronic game play function or a multimedia player function. In particular, modern mobile terminals can receive multicast signals that provide visual content such as broadcast and video or television programs.

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.

2. Description of the Related Art In recent years, research has been conducted on a mobile terminal having both a general camera and a wide-angle camera. A wide-angle camera refers to a camera having a wide-angle lens with a significantly smaller focal length than a conventional camera. With this type of wide-angle lens, you can capture more scenes in your photos, making it easier for photographers to shoot scenes that are farther away from you. Therefore, a control method suitable for a mobile terminal having the two cameras simultaneously is required.

The present invention is directed to solving the above-mentioned problems and other problems. It is another object of the present invention to provide a mobile terminal and a control method thereof, which can automatically determine a condition for photographing at a wide angle.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

According to an aspect of the present invention, there is provided a memory comprising: a memory; touch screen; A first camera; A second camera having a wider angle than the first camera; And a first camera for outputting a first preview image for the first camera through a touch screen, and upon receipt of an image capture command, storing a first image captured through the first camera, And a control unit for storing together the first image and the second image photographed through the second camera, if satisfied.

According to another aspect of the present invention, there is provided a method of controlling a mobile terminal including a first camera and a second camera having a wider angle than the first camera, Outputting a first preview image for the camera; And storing a first image photographed through the first camera when a photographing command is received, wherein the storing step comprises the steps of: when the preview image satisfies the wide-angle photographing condition, 2 < / RTI > camera together with a second image captured through a camera.

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

According to at least one of the embodiments of the present invention, it is possible to provide an optimum shooting mode to the user by automatically determining a condition for shooting at a wide angle.

In addition, according to at least one embodiment of the present invention, there is an advantage that, when taking a picture with a general camera, a part not included in the picture can be included in the picture again.

Further scope of applicability of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, such as the preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.

1A is a block diagram illustrating a mobile terminal according to the present invention.
1B and 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions.
2 is a diagram illustrating another example of the rear view of a mobile terminal according to an embodiment of the present invention.
3 is a diagram illustrating a control method for easily switching between a wide angle mode for photographing using a wide angle camera and a normal mode for photographing using a general camera according to an embodiment of the present invention.
4 is a view for explaining a control method for analyzing an image received through a camera and determining whether it is a good condition for photographing at a wide angle according to an embodiment of the present invention.
5 is a view for explaining a wide-angle photographing condition at the time of portrait photographing, according to an embodiment of the present invention. 5 (a) and 5 (b) are conceptual diagrams showing a general image 401 and a wide-angle image 402 in which a person is a subject, in a superimposed manner.
6 is a view for explaining a wide angle photographing condition in the absence of a background, according to an embodiment of the present invention. 6 (a) and 6 (b) are conceptual diagrams in which the general image 401 and the wide-angle image 402 are superimposed.
A method of measuring the distance to the subject will be described with reference to FIG.
8 is a diagram showing a flowchart for determining a wide angle photographing condition using at least two distances to a subject, according to an embodiment of the present invention.
Fig. 9 shows an example image for explaining the wide-angle photographing condition when the distance d1 to the main subject is long, according to an embodiment of the present invention.
Fig. 10 shows an example image for explaining the wide-angle photographing condition when the distance d1 to the main subject is close, according to an embodiment of the present invention.
11 is a diagram showing an embodiment in which the number of peripheral points is increased according to an embodiment of the present invention.
12 and 13 are diagrams showing a control method of determining a wide angle photographing condition based on a photographing operation of a user, according to an embodiment of the present invention.
14 is a diagram showing a control method of setting a case where a specific voice is recognized as a wide-angle photographing condition according to an embodiment of the present invention.
15 shows a flowchart including examples of possible operations when a wide angle photographing condition is satisfied, according to an embodiment of the present invention.
16 is a view showing a control method of viewing photographed photographs together when a general camera and a wide-angle camera are photographed together according to an embodiment of the present invention.
17 shows a control method of confirming whether or not the user switches to the wide angle photographing when the wide angle photographing condition is satisfied, according to an embodiment of the present invention.
18 is a diagram illustrating a control method of superimposing a general preview screen and a wide-angle preview screen according to an embodiment of the present invention.
19 is a diagram illustrating a control method of outputting only a general preview screen or outputting only a wide angle view screen in a state in which a general preview screen and a wide angle preview screen are overlapped and output according to an embodiment of the present invention.

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

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

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

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

1A to 1C are block diagrams for explaining a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual diagrams showing an example of a mobile terminal according to the present invention in different directions.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, and a power supply unit 190 ), And the like. The components shown in FIG. 1A are not essential for implementing a mobile terminal, so that the mobile terminal described herein may have more or fewer components than the components listed above.

The wireless communication unit 110 may be connected between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and another mobile terminal 100 or between the mobile terminal 100 and the external server 100. [ Lt; RTI ID = 0.0 > wireless < / RTI > In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

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

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

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

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

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

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

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

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

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

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

Hereinafter, the various components of the mobile terminal 100 will be described in detail with reference to FIG. 1A.

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

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

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

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

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

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

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

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

The position information module 115 is a module for obtaining the position (or current position) of the mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, it can acquire the position of the mobile terminal by using a signal transmitted from the GPS satellite. As another example, when the mobile terminal utilizes the Wi-Fi module, it can acquire the position of the mobile terminal based on information of a wireless access point (AP) that transmits or receives the wireless signal with the Wi-Fi module. Optionally, the location information module 115 may perform any of the other functions of the wireless communication unit 110 to obtain data relating to the location of the mobile terminal, in addition or alternatively. The location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

In addition to vibration, the haptic module 153 may be configured to perform various functions such as a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, 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 153 can transmit the tactile effect through the direct contact, and the tactile effect can be felt by the user through the muscles of the finger or arm. The haptic module 153 may include two or more haptic modules 153 according to the configuration of the mobile terminal 100.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

2. Description of the Related Art In recent years, a mobile terminal having a general camera and a wide-angle camera at the same time is under study. The structure of such a mobile terminal will be described with reference to FIG.

2 is a diagram illustrating another example of the rear view of a mobile terminal according to an embodiment of the present invention.

It is assumed that the second camera 121b is a general camera having a general photographing angle, and the third camera 121c is a wide angle camera having a wider photographing angle than the second camera 121b.

A wide-angle camera may refer to a camera having a wide-angle lens with a significantly smaller focal length than a conventional camera. The focal length is relatively high, but it can be taken at a wide angle of view, so it can be used to shoot farther away, so it is highly utilized.

As shown in the figure, the second camera 121b and the third camera 121c may be disposed adjacent to one side of the mobile terminal 100. 2, a general camera and a wide-angle camera may be disposed adjacent to the front surface of the mobile terminal 100, and a general camera and a wide-angle camera May be disposed adjacent to each other.

An image received through a regular camera and a wide-angle camera disposed adjacent to each other will overlap such that some overlap or that one image is entirely contained in another image. In an embodiment of the present invention, a general image received through a general camera is included in a wide-angle image received through a wide-angle camera. However, the present invention is not limited thereto.

In one embodiment of the present invention, a control method capable of effectively utilizing each camera when the general camera and the wide-angle camera are disposed adjacent to each other is proposed.

3 is a diagram illustrating a control method for easily switching between a wide angle mode for photographing using a wide angle camera and a normal mode for photographing using a general camera according to an embodiment of the present invention.

Referring to FIG. 3 (a), a general preview image 301-1 for the second camera 121b, which is a general camera, is output. At this time, if a photographing command is received, the controller 180 may store the image received through the second camera 121b in the memory 170. [ Hereinafter, a series of operations of storing the image received through the camera in the memory 170 in one embodiment of the present invention will be referred to as photographing.

In one embodiment of the present invention, it is proposed to switch to the wide angle mode based on a specific gesture.

Generally, when a pinch-in gesture is received on the preview image, the control unit 180 zooms out the camera. Also, when a pinch-out gesture is received on the preview image, the control unit 180 can zoom in the camera.

In one embodiment of the present invention, when the pinch-in gesture 10a is received in the state of being maximally zoomed out, it is proposed to switch the shooting mode from the normal mode to the wide-angle mode.

In the case where the general preview image 301-1 output in Fig. 3 (a) is a screen in a state in which the zoom-out is maximized, the controller 180, in response to the input of the pinch-in gesture 10a, it is possible to switch to the wide angle mode as shown in FIG. That is, the control unit 180 switches from the general preview image 301-1 for the general camera to the wide angle preview image 301-2 for the wide angle camera and outputs the wide angle preview image 301-2. At this time, the controller 180 may output the wide angle mode indicator 302 informing that the wide angle mode is switched to the wide angle mode.

In an embodiment of the present invention, it is further proposed to further output the handler 303 capable of controlling the zoom function and the mode switching when switching to the wide angle mode corresponding to the pinch-in gesture.

The control unit 180 switches the shooting mode to the wide angle mode and touches the sliding object 303 to the zoom area by touching and dragging the sliding object 303 to the wide- (10b), the camera zoom function can be controlled in the normal mode.

As shown in FIG. 3 (c), when the touch input 10c is received on the wide angle preview image 301-2, the control unit 180 can photograph the photograph through the wide angle camera.

On the other hand, it is difficult for a general user to judge under which conditions a wide-angle camera should be used unless he / she learns photography techniques. Therefore, in an embodiment of the present invention, it is an object of the present invention to automatically determine a condition (hereinafter, referred to as a wide-angle photographing condition) for photographing with a wide-angle camera, and to provide a suitable photographing environment according to a determination result.

Hereinafter, various embodiments of the wide-angle photographing conditions will be described, but it will be obvious that the embodiments are not applied independently, and that a plurality of embodiments can be applied in combination.

Wide-angle shooting conditions - Preview  Screen Analysis

In one embodiment of the present invention, it is proposed to analyze an image received from at least one of a general camera and a wide-angle camera in a photographing mode (general or wide angle mode) and judge a wide-angle photographing condition based on the analysis result. Such an embodiment will be described below with reference to Figs. 4 to 6. Fig.

4 is a view for explaining a control method for analyzing an image received through a camera and determining whether it is a good condition for photographing at a wide angle according to an embodiment of the present invention.

Referring to FIG. 4A, the control unit 180 outputs a general preview screen 301-1 through the touch screen 151. FIG. 4 (b) shows a general image 401 received via a general camera.

The control unit 180 according to an exemplary embodiment of the present invention analyzes the general image 401 received through the general camera and determines whether the general image 401 is a wide angle photographing condition. The control unit 180 identifies the subject and the outline boundary 403 of the subject on the general image 401. If the identified subject is not included in the general image 401 and a part of the subject is cut off, It can be judged to be good. This is because it may be appropriate to photograph the entire subject.

Accordingly, in one embodiment of the present invention, the control unit 180 analyzes the outer boundary 403 of the subject included in the general image 401, and sets a condition in which a part of the subject is cut off as the wide-angle photographing condition.

On the other hand, although the entire image 401 is not included in the general image 401 and is photographed at a wide angle, it will not be meaningful if the entire object is not included even if the image is photographed at a wide angle. Accordingly, in another embodiment of the present invention, the wide-angle image 402 received through the wide-angle camera may be further analyzed to make the wide-angle photographing condition include the case where the subject is entirely included in the wide-angle image 402.

4 (c) is a conceptual diagram in which the general image 401 and the wide-angle image 402 are superimposed. As described above, when the wide-angle camera and the general camera are disposed adjacent to each other, the wide-angle image 402 may include the generic image 401.

In the illustrated example, it can be determined that the entire object is included as a result of analyzing the outer boundary 403 of the subject in the wide-angle image 402. [ Accordingly, it can be determined that the entire image that is not included in the general image 401 can be entirely included in the wide-angle image 402.

Unlike the illustrated example, if the subject is not entirely included in the wide-angle image 402, the wide-angle photographing condition may not be satisfied.

Hereinafter, as will be described later in detail, when the wide-angle photographing condition is satisfied, a photograph can be taken using both the general camera and the wide-angle camera in response to the photographing instruction of the user. That is, the photographs (401 and 402 in the example of FIG. 4) photographed using each camera can be stored together.

Hereinafter, when the person is a subject, the wide-angle photographing condition will be described with reference to FIG.

5 is a view for explaining a wide-angle photographing condition at the time of portrait photographing, according to an embodiment of the present invention. 5 (a) and 5 (b) are conceptual diagrams showing a general image 401 and a wide-angle image 402 in which a person is a subject, in a superimposed manner. Accordingly, the preview image displayed through the actual touch screen 151 may be displayed in the overlapping manner, but the general image 401 or the wide-angle image 402 may be displayed.

The control unit 180 may recognize that the subject is a person through facial recognition of at least one person included in the general image 401 or the wide angle image 401. [

In one embodiment of the present invention, when the person is a subject, a condition in which the focus of the subject is shaken is set as the wide-angle photographing condition. Because, if the focus on the person is shaken, it is necessary to shoot the background instead of the person. That is, the control unit 180 can photograph the subject through the general camera and the wide-angle camera when the subject is not in focus or shake when photographing the photograph in response to the photographing command.

The embodiment described above with reference to FIG. 4 may determine whether a subject, which is a subject, is included in the general image 401 or not, and determines whether or not the environment is good for photographing at a wide angle, as shown in FIG.

5 (a) and 5 (b), a plurality of persons are shown as subjects on a general image 401 and a wide-angle image 402. FIG. The control unit 180 may analyze the outline boundary of each person or analyze the outline boundary 501 for a plurality of persons.

As a result of analyzing the outer boundary 501, if the person who is the subject is not included in the general image 401 but is cut off, the control unit 180 may satisfy the wide angle photographing condition. Further, the wide-angle image 402 may be further analyzed, and it may be further included in the wide-angle photographing condition whether or not the person as the subject is included in the wide-angle image 402 as well. That is, the condition that the person is not included in the general image 401 but is included in the wide-angle image 402 may be set as the wide-angle photographing condition.

On the other hand, in the wide-angle photographing condition, the number of persons as subjects can be considered. In the case of a group portrait photograph, it is appropriate that the photographing composition should be widely photographed. For example, the control unit 180 can determine that the wide-angle photographing condition is satisfied when the number of persons included in the general image 401 or the wide-angle image 402 is equal to or larger than a predetermined value.

On the other hand, in the above-described embodiment based on Figs. 4 and 5, the wide-angle photographing condition is described when at least one subject and its background are included together. Hereinafter, with reference to FIG. 6, a wide angle photographing condition will be described when a background is not included by the subjects.

6 is a view for explaining a wide angle photographing condition in the absence of a background, according to an embodiment of the present invention. 6 (a) and 6 (b) are conceptual diagrams in which the general image 401 and the wide-angle image 402 are superimposed. Accordingly, the preview image displayed through the actual touch screen 151 may be displayed in the overlapping manner, but the general image 401 or the wide-angle image 402 may be displayed.

Referring to FIG. 6 (a), a general image 401 (in a solid line frame), which is an image received by a general camera, includes a plurality of buildings as subjects, and in particular, a plurality of buildings are tight It is displayed in a cold state. That is, on the general image 401, there are no margins other than the subjects.

If the photographed picture is only filled with the subject and the background is not present, a good picture composition may not be obtained. Accordingly, the controller 180 according to an exemplary embodiment of the present invention analyzes the general image 401 and determines that the wide angle photographing condition is satisfied when there is no or only a margin other than the subject. At this time, the ratio of the margin occupied by the entire image may be determined through the image analysis algorithm, and when the ratio occupied by the margin is less than the predetermined value, the wide angle photographing condition may be used.

Furthermore, in another embodiment of the present invention, it is possible to judge the wide-angle photographing condition considering the presence or absence of the margin and the ratio of the margin, as well as the variety of colors.

If a plurality of subjects included in the images shown in Figs. 6 (a) and 6 (b) have different colors, it may be preferable to photograph the images in a wider area. Therefore, in the embodiment of the present invention, the wide angle photographing condition can be a case where it is determined that the color of the image included in the general image 401 or the wide angle image 402 is varied through the image analysis algorithm.

Likewise, in a state in which the wide angle photographing condition is satisfied, when the photographing instruction is received from the user, the control unit 180 can control to photograph together the general camera and the wide angle camera.

In the embodiment described above with reference to Figs. 4 to 6, a control method of judging a wide-angle photographing condition using an image received through a general camera or a wide-angle camera, or using a preview screen in which the image is output to the touch screen . Hereinafter, in the embodiments related to Figs. 7 to 11, a control method of determining the wide angle photographing condition based on the distance to the subject will be described.

Wide-angle shooting conditions based on the depth of the subject

A subject according to an embodiment of the present invention may refer to an object included in an image received through a camera. Such a subject may include a person, an animal or an object, and in the case of a landscape photograph, a building, a structure, and a background may be included. However, the background such as the sky or the ground may be included in the subject in the embodiment of the present invention, though there is no concrete object, and in particular, the distance to such a background may be very distant.

A method of measuring the distance to the subject will be described with reference to FIG.

7 is a diagram illustrating an example of measuring a distance from a pin-hole model to a subject according to an embodiment of the present invention.

First and second projection centers 701-1 and 701-2 for two cameras are disposed on the x-axis 700-1. The y-axis 700-2 faces the subject 702. [

Normal cameras and wide-angle cameras will have different image planes because of their different focal lengths.

The first image plane 705-1 is positioned at a distance f1 703-1 from the first projection center 701-1 of the wide angle camera and the second image plane 701-1 is positioned at a distance f1 703-1 from the first projection center 701-1 of the wide- 2) at a distance f2 (703-2) from the second image plane 705-2. When the subject 702 and the first projection center 701-1 are connected by a straight line, the first right triangle TR1 and 707-1 can be formed at u1 704-1. Likewise, when the subject 702 is connected in a straight line at the second projection center 701-1, the second right triangle TR2, 707-2 may be formed. When the first and second right triangular shapes 707-1 and 707-2 are similar to each other, the distance Z to the subject 702 can be calculated as shown in the following equation (1).

The method of measuring the distance to the subject using the two cameras is merely an example, and the present invention is not limited to the method of measuring the distance.

In one embodiment of the present invention, it is proposed to determine the wide angle photographing condition using at least two distances to the subject 702 described above. At least two distances to the subject 702 are more specifically proposed to consider not only one subject but also the distance to the subject in the vicinity of the center subject.

For example, when there is one person in the center subject 702 and the far-away scenery is seen around the person, not only the distance to the person as the center subject 702 but also the surrounding scenery (even the scenery is considered as the subject) And the distance from the point of view. At this time, when the distance is measured considering the scenery as a subject, a very high distance can be calculated.

Hereinafter, this will be described in detail with reference to the flowchart of FIG.

8 is a diagram showing a flowchart for determining a wide angle photographing condition using at least two distances to a subject, according to an embodiment of the present invention.

In step S801, the controller 180 measures a distance d1 from the mobile terminal to the main object. Here, the main subject may be a subject to be photographed by a user, and may be a main subject, such as a person, an object, or an animal recognized at a central portion of the image. Alternatively, the main subject may be an object such as a person, object, or animal located at a position where the focus of the lens is formed.

There may be no object judged to be the main subject in the case of simply a landscape photograph. In this case, in step S801, the controller 180 may measure the distance d1 in the center region of the image.

If the measured distance d1 is greater than the first preset value, the process can proceed to step S806. In step S806, it is determined that the wide angle photographing condition is satisfied. This is because the distance to the main subject is far. A concrete example of such a case will be described with reference to Fig.

Fig. 9 shows an example image for explaining the wide-angle photographing condition when the distance d1 to the main subject is long, according to an embodiment of the present invention.

Referring to the first example image 901-1 of Fig. 9A, a person corresponding to the main subject 902 is visible in the center portion, and the buildings lie on the right and left sides of the person. Since the distance to the main subject 902 is quite long (d1 > the first predetermined value), the first exemplary image 901-1 may be suitable for shooting at a wide angle.

Subsequently, referring to the second example image 901-2 in Fig. 9B, a person corresponding to the main subject 902 is similarly displayed in the center portion. Since the distance of the main subject 902 is considerably longer in the second example image 901-2 (d1> the first predetermined value), it is preferable that the second example image 901-2 is photographed at a wide angle.

That is, in one embodiment of the present invention, when the distance to the main subject 902 is long, the distance outside the main subject 902 is not considered. This is because the user's intention to take a picture in such a case is that the user may want to photograph the background or the landscape where the main subject 902 is located, rather than wanting to clearly capture the main subject 902 on the photograph.

On the other hand, when the distance to the main subject 902 is close (d1? First set value), the distance around the main subject 902 should also be considered. The remaining flow chart of Fig. 8 and the other example of Fig. 10 will be described together.

Fig. 10 shows an example image for explaining the wide-angle photographing condition when the distance d1 to the main subject is close, according to an embodiment of the present invention.

In step S802, if the measured distance d1 is less than or equal to the predetermined value, the controller 180 may proceed to step S803. In step S803, the controller 180 may measure distances d2, d3, d4, ... to N points around the main subject 902. [ Here, N can be set variously starting from one. In the example shown in Fig. 10, the description is limited to four, but the present invention is not limited thereto.

Referring to FIG. 10 (a), in step S803, the periphery of the main subject 902 identifies an area 1001 occupied by the main subject 902 on the image, and the identified out-of-area points 1002-1 to 1002 -4).

In the embodiment of the present invention, when the background of the main subject 902 is far, it is determined that there is a scenery as a background, and it is proposed to photograph the subject 902 at a wide angle. On the contrary, if the periphery of the main subject 902 is not too far (for example, self-photographing in the room), it is not necessary to photograph the subject 902 at a wide angle. In order to determine two cases, in one embodiment of the present invention, the distance to the point around the main subject 902 is determined.

When the distances from the first to fourth peripheral points 1002-1 to 1002-4 are d2, d3, d4, and d5 in the third example image 901-3 in Fig. 10A, The distance d2 to the one surrounding point 1002-1 and the distance d3 to the second surrounding point 1002-2 will have a very large value since there is no subject or the sky or cloud can be seen as the subject.

Since the distance d4 to the third surrounding point 1002-3 indicates the distance to the ground, it is not a value as large as d2 or d3, but it can have a considerably large value. Finally, the fourth peripheral gauging 1002-4 will be a value similar to the distance of the main subject 902 since it is a point near the person who is the main subject 902.

According to an embodiment of the present invention, the number of distant peripheral points is determined, and the wide angle photographing condition is determined based on the number of peripheral points. The distance from the first to third peripheral points 1002-1 to 1002-3 is long and the distance to the fourth peripheral point 1002-4 is near as shown in Fig. 10 (a) Wide-angle shooting may be appropriate. Among the four surrounding points, the number of distant points is three, and the distances from the neighboring points are relatively long. That is, the ratio of peripheral points far from the total number of peripheral points is considered.

Therefore, the number n of the peripheral points distant from the distance measured in step S803 (the points larger than the second predetermined value) is determined, and n / N, which is the ratio of the peripheral points to the distant peripheral points, Can be calculated. The larger the n / N, the closer the distance is, and the smaller the n / N the closer the distance will be. Accordingly, if n / N is greater than the third predetermined value in step S805, the flow advances to step S806 to determine that the wide angle photographing condition is satisfied. If n / N is less than or equal to the third preset value, the process advances to step S807 to determine that the wide angle photographing condition is not satisfied.

This case will be described with reference to the fourth example image 901-4 in Fig. 10 (b).

Referring to the fourth example image 901-4, the main subject 902 occupies a considerable area of the person and appears to be photographed indoors.

In the fourth example image 901-4, the distances of the first to fourth peripheral points 1002-1 to 1002-4 are not so large (less than a second predetermined value). Therefore, n = 0 among all the neighboring points of N = 4, so n / T = 0. Accordingly, the controller 180 can determine that the wide angle photographing condition of step S807 is not satisfied because the value of n / T is smaller than the third preset value.

If the distance to the neighboring point is also near the side, it can be said that it is photographed indoors, so a general photographing instead of a wide angle may be suitable.

In the above-described embodiment, the distance measurement is performed for only four peripheral points. However, as the number of measurement points is increased, more accurate determination can be made. This embodiment will be described with reference to Fig.

11 is a diagram showing an embodiment in which the number of peripheral points is increased according to an embodiment of the present invention.

Referring to Fig. 11 (a), there is shown a third example image 901-3 used in Fig. 10 (a), in which an area 1001 occupied by the main subject 902 on the image is shown.

11 (b) shows an example of the positions of 58 (= N) peripheral points 1002-1, 1002-2, ... outside the region 1001. In FIG. The positions of the peripheral points may be arranged in a lattice form as shown in the illustrated example, or may be disposed at any position other than the area 1001. [

Of the 58 surrounding points (1002-1, 1002-2, ...), the neighboring points nearest to the measured distance are the eight neighboring points included in the 1101 region, and the neighboring points at the remaining far distances are 50 (= n )to be.

If we calculate n / N, which is the ratio of the number of peripheral points of long distance to n = 50 among the whole surrounding points N = 58, the result of 25/29 can be obtained. According to this result, (In step S805, proceed to step S806 along the YES path). In other words, if the number of the peripheral points for measuring the distance is increased, the processing speed may be somewhat delayed because more distances must be measured, but it will be possible to judge the conditions of the wide angle photographing more accurately.

Hereinafter, a control method for determining the motion of the photographer (user) in the wide angle photographing condition will be described.

Wide-angle shooting conditions based on user's movement

In an embodiment of the present invention, it is proposed to naturally recommend an appropriate photographing mode according to the photographing operation of the user. This condition will be described with reference to FIG. 12 and FIG.

12 and 13 are diagrams showing a control method of determining a wide angle photographing condition based on a photographing operation of a user, according to an embodiment of the present invention.

12 (a), a user 1201 photographs a subject 1202 using a general camera. Accordingly, a general preview image 301-1 for the general camera is output through the touch screen 151. [ Since the shooting angle 1203 of the general camera is small, a part of the subject may be out of the screen.

If it is detected that the user (photographer) moves backward while taking a picture using a conventional camera, this may be viewed as a doctor who wants to take a picture with a wider user. That is, when the controller 180 detects a movement of the general camera in the first predetermined direction, it may determine that the wide angle photographing condition is satisfied. Here, the moving motion can be sensed by the sensing unit 140 provided in Fig. 1A described above. For example, the first predetermined direction may correspond to a direction in which the distance between the general camera and the user increases. Accordingly, the control unit 180 can automatically switch the camera to the wide angle camera. If the automatic switch is not the intended one, the user will be able to return using the cancel button.

12B is a view showing the wide angle preview screen 301-2 after switching to the wide angle camera. The photographing angle 1203 'of the wide-angle camera is increased to the photographing angle 1203 of the general camera, so that a subject that has deviated from the screen will be able to enter the screen.

The display 1202 of the wide angle preview screen 301-2 and the wording 1204 indicating the switch to the wide angle mode and the above wide angle mode indicator 302 may be further displayed.

Referring to Fig. 13 (a), conversely, the user 1201 photographs a subject 1202 using a wide-angle camera. Accordingly, the wide angle preview image 301-2 for the general camera is output through the touch screen 151. [ Since the wide angle camera has a large shooting angle 1203 ', the subject can be photographed relatively small.

If it is detected that the user (photographer) moves forward while taking a picture using a conventional camera, this can be viewed as a doctor who wants to shoot at a narrow angle. That is, the controller 180 may determine that the motion does not correspond to the wide-angle photographing condition when the movement in the second predetermined direction is detected from the general camera. Here, the moving motion can be sensed by the sensing unit 140 provided in Fig. 1A described above. For example, the second predetermined direction may be a direction opposite to the first predetermined direction, which corresponds to a direction in which the distance between the general camera and the user decreases. Accordingly, the control unit 180 may automatically switch the camera to a general camera. If the automatic switch is not the intended one, the user will be able to return using the cancel button.

13 (a) is a diagram showing a general preview screen 301-1 after switching to a general camera. Since the photographing angle 1203 'of the wide angle camera is reduced to the photographing angle 1203 of the general camera, the subject can be taken larger.

It is possible to further display the above-mentioned wide-angle mode indicator 302 and the phrase indicating that the general preview screen 301-1 is switched to the normal mode together with the display of the general preview screen 301-1.

Meanwhile, in an embodiment of the present invention, it is proposed to photograph at a wide angle when a specific voice is recognized. Such an embodiment will be described below with reference to Fig.

Wide-angle shooting conditions - Specific speech recognition

14 is a diagram showing a control method of setting a case where a specific voice is recognized as a wide-angle photographing condition according to an embodiment of the present invention.

Referring to Fig. 14 (a), a general preview screen 301-1 for a general camera is outputted, and a doctor who wants to photograph another person together is displayed on a crowd trying to take a picture. If you recognize the expression of such a doctor, you will need to shoot at a wide angle to capture the person.

Such a doctor's indication may include, for example, "me", "here", "here", "here", "kimchi"

That is, when the preset voice is recognized, the control unit 180 may see that the wide angle photographing condition is satisfied. Furthermore, it may further be determined whether the face of the person is facing the camera on the image received through the activated wide-angle camera, and it may be determined that the wide-angle photographing condition is satisfied when the person faces the camera. This is to prevent misidentification. On the other hand, even if the preset voice is recognized, if the face of the person does not face the camera direction, there is no need to photograph the person together, so that it can be judged that the wide angle photographing condition is not satisfied.

In the embodiment of the present invention, when the wide angle photographing condition is satisfied by the preset speech recognition, the wide angle camera is activated and the area 1402 occupied by the person on the general preview image 301-1 It can be displayed to be identified. This is to confirm whether or not the user should include the person and shoot.

The control unit 180 returns to the output of the original general preview screen 301-1 (FIG. 14 (a)) when the input 10d to which the general preview screen 301-1 other than the area 1402 is touched is received a). < / RTI >

When the input 10e to which the area 1402 is touched is received, the control unit 180 may switch to the wide angle camera and perform shooting.

The control method for determining the wide angle photographing condition in consideration of the photographing environment and the intention of the user has been described so far. Hereinafter, a method of controlling when the wide-angle photographing condition is satisfied / unsatisfied will be described in detail.

15 shows a flowchart including examples of possible operations when a wide angle photographing condition is satisfied, according to an embodiment of the present invention.

In step S1501, the control unit 180 outputs a preview screen for the general camera. In step S1502, it is determined whether the wide angle photographing condition is satisfied. Steps S1501 and S1502 are the same as those described in the embodiment for the wide-angle photographing condition described above, and therefore, detailed description thereof will be omitted.

If it is determined in step S1502 that the wide angle photographing condition is not satisfied, step S1501 may be repeated. However, if the wide angle photographing condition is satisfied, steps S1505 to S1506 may be performed. In step S1502, the process may proceed to any one of steps S1505 to S1506, but the process may be performed in a plurality of steps. Steps S1505 to S1506 will be described below with reference to the drawings.

Satisfying wide-angle shooting conditions - Shooting a normal and wide angle camera together

In an embodiment of the present invention, when the photographing instruction is received in a state in which the wide-angle photographing condition is satisfied, it is proposed that the general camera and the wide-angle camera are used together. That is, a general image and a wide-angle image can be stored from a general camera and a wide-angle camera, respectively. Such stored images will be visible when the user views the photographed images. Hereinafter, with reference to FIG. 16, a control method for browsing a general image and a wide-angle image together will be described.

16 is a view showing a control method of viewing photographed photographs together when a general camera and a wide-angle camera are photographed together according to an embodiment of the present invention.

16A, a general image 1601 and a wide-angle image 1602, which are photographed by the above-described method, can be output together on an execution screen for confirming a photographed picture such as a gallery application. At this time, the wide-angle image 1602 and the general image 1601 may be superimposed and output. In particular, the controller 180 may output a wide angle indicator 1603 indicating that the general image 1601 and the wide-angle image 1602 are simultaneously photographed.

If the general image 1601 determines that the subject does not include all the desired objects, the user may desire to utilize a desired one of the wide-angle images 1602. Accordingly, in an embodiment of the present invention, when the input 10f from which the output wide angle image 1602 is selected is received, it is possible to output the image area adjustment indicator 1604 so as to extend to the wide angle image 1602 have. At this time, the image area adjustment indicator 1604 may be displayed in at least a part of the general image 1601. [ For example, in the embodiment of FIG. 16, the image area adjustment indicator 1604 may be provided in a plurality and may be located at four corners of the general image 1601. Also, when any one of the image area adjustment indicators 1604 is touch-dragged (10g). The control unit 180 may adjust the area corresponding to the corresponding corner ((b) to (c)).

Referring to FIG. 16 (c), after the area is adjusted, the control unit 180 can receive the confirmation command 10h. For example, the determination command 10h may correspond to a short-touch input. 16 (d), when the confirmation command 10h is received, the control unit 180 determines that the image in which the area has been adjusted by the user is not included in the general image 1601 as a fixed image Can be stored. As an example, the determined image may correspond to the entire wide-angle image 1602, as shown in Fig. 16 (d). As another example, the fixed image may correspond to an image in which a portion of the wide-angle image 1602 is cropped. Further, as another example, the determined image may correspond to a designated one of the wide-angle images 1602. [ Whichever way, the final image corresponding to the area designated by the user will be stored.

On the other hand, the control unit 180 may delete the stored general image 1601 and the wide-angle image 1602, respectively, and may instead store the final image. This is because, if the general image 1601 and the wide-angle image 1602 are stored together, it takes too much storage space by one shot. On the other hand, the final image may be additionally stored without deleting the general image 1601 and the wide-angle image 1602. [ In this case, the area adjustment of FIG. 16 (b) may be repeatedly performed later by using the common image 1601 and the wide-angle image 1602 which are stored together.

Alternatively, the final image may not be stored separately, but only the information about the designated area may be stored, and when the user views the image, only the designated area may be displayed in the general image 1601 or the wide-angle image 1602.

Hereinafter, steps S1503 and S1504 will be described with reference to FIG.

In step S1503, the control unit 180 displays a preview screen (general preview screen 301-1) that has been outputted to the general camera, a preview screen (wide-angle preview screen) 301-2 that outputs the preview screen . ≪ / RTI > As described above with reference to Fig. 12, in the case where the user photographing the photographer performs an operation of backing back (satisfying the wide angle photographing condition), the control unit 180 displays, on the general preview screen 301-1 (Fig. , The wide angle preview screen 301-2 (Fig. 12 (b)).

In step S1504, the control unit 180 can automatically output the phrase 1204 indicating that the apparatus has been switched to the wide angle mode (refer to FIG. 12 (b)).

On the other hand, in the embodiment related to Fig. 12, it is proposed to switch automatically when the wide angle photographing condition is satisfied. Hereinafter, in the embodiment related to Fig. 17, it is suggested that the user be guided to satisfy the wide angle photographing condition and switch based on the user's command.

17 shows a control method of confirming whether or not the user switches to the wide angle photographing when the wide angle photographing condition is satisfied, according to an embodiment of the present invention.

Referring to FIG. 17 (a), the control unit 180 outputs a general preview screen 301-1. When the wide angle photographing condition is satisfied during the output of the general preview screen 301-1, the control unit 180 can output a phrase 1702 to guide the user to the wide angle photographing condition. Furthermore, the user can output a button (or indicator) capable of switching to the wide angle.

In particular, when there is a subject that is not included in the general preview screen 301-1 as in the embodiment described above with reference to FIG. 4, an indicator 1701 for displaying the subject to be identified can be output . When the input to which the indicator 1701 is touched (10p) is received, the controller 180 may switch to the wide angle preview screen 301-2 so as to include the subject. In the switched state, when receiving a photographing command, a photograph can be taken using a wide-angle camera.

Hereinafter, step S1501 will be described with reference to Figs. 18 and 19. Fig.

18 is a diagram illustrating a control method of superimposing a general preview screen and a wide-angle preview screen according to an embodiment of the present invention.

As shown in FIG. 18 (a), the control unit 180 may output a general preview screen 301-1 for a general camera. When the wide angle photographing condition is satisfied, the control unit 180 can output the wide angle preview screen 301-2 together with the general preview screen 301-1 as shown in Fig. 18 (b). At this time, the general preview screen 301-1 and the wide angle preview screen 301-2 can be output in a superimposed manner.

Furthermore, when the general preview screen 301-1 is touched (10j), the control unit 180 can take a picture using a general camera, and when the wide angle preview screen 301-2 is touched (10k) , The photograph can be taken using a wide angle camera. Furthermore, if the general preview screen 301-1 and the wide angle preview screen 301-2 are touched simultaneously, the two cameras may be used to shoot together.

19 is a diagram illustrating a control method of outputting only a general preview screen or outputting only a wide angle view screen in a state in which a general preview screen and a wide angle preview screen are superimposed and output according to an embodiment of the present invention.

As shown in FIG. 19 (a), when the pinch-in gesture 10m is received while the general preview screen and the wide-angle preview screen are superimposed and outputted, only the wide-angle preview screen 301-2 can be output. When the photographing instruction is received while the wide angle preview screen 301-2 is being output, a photograph can be taken using the wide angle camera.

As shown in FIG. 19 (b), when the pinch-out gesture 10n is received while the general preview screen and the wide-angle preview screen are superimposed on each other, only the general preview screen 301-1 can be output. When the photographing instruction is received while the general preview screen 301-1 is being output, a photograph can be taken using a general camera.

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

100: mobile terminal 110: wireless communication unit
120: Input unit
140: sensing unit 150: output unit
160: interface unit 160: memory
180: control unit 190: power supply unit

Claims (22)

Memory;
touch screen;
A first camera;
A second camera having a wide-angle different from that of the first camera; And
And a control unit,
The control unit
A first preview image for the first camera is output through the touch screen, and the first preview image includes at least one subject,
Determining a ratio of an area occupied by the at least one subject relative to the entire area of the first preview image,
When the first preview image satisfies the wide angle photographing condition when the photographing command is received, a first image photographed through the first camera and a second image photographed through the second camera are stored together in the memory and,
Storing the first image photographed through the first camera in the memory when the first preview image does not satisfy the wide angle photographing condition when the photographing command is received,
Wherein the wide angle photographing condition is a condition that the ratio is equal to or greater than a predetermined value,
Mobile terminal. Memory;
touch screen;
A first camera;
A second camera having a wide-angle different from that of the first camera; And
And a control unit,
The control unit
A first preview image for the first camera is output through the touch screen, and the first preview image includes at least one subject,
Determining a ratio of an area occupied by the at least one subject relative to the entire area of the first preview image,
When the first preview image satisfies the wide angle photographing condition, converting the first preview image to the second preview image for the second camera on the touch screen,
Wherein the wide angle photographing condition is a condition that the ratio is equal to or greater than a predetermined value,
Mobile terminal. delete delete delete delete delete delete delete delete delete A control method of a mobile terminal including a first camera and a second camera having a wide angle different from that of the first camera,
Outputting a first preview image for the first camera through a touch screen, the first preview image including at least one subject;
Determining a ratio of an area occupied by the at least one subject to the entire area of the first preview image;
Storing the first image photographed through the first camera and the second image photographed through the second camera together in a memory when the first preview image satisfies the wide angle photographing condition when a photographing command is received ; And
Storing the first image photographed through the first camera in the memory when the first preview image does not satisfy the wide angle photographing condition when the photographing command is received,
Wherein the wide angle photographing condition is a condition that the ratio is equal to or greater than a predetermined value,
A method of controlling a mobile terminal. A control method of a mobile terminal including a first camera and a second camera having a wide angle different from that of the first camera,
Outputting a first preview image for the first camera through a touch screen, the first preview image including at least one subject;
Determining a ratio of an area occupied by the at least one subject to the entire area of the first preview image; And
And switching the first preview image to a second preview image for the second camera on the touch screen if the first preview image satisfies the wide angle photographing condition,
Wherein the wide angle photographing condition is a condition that the ratio is equal to or greater than a predetermined value,
A method of controlling a mobile terminal.
delete delete delete delete delete delete delete delete delete

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