KR20180014616A - Mobile terminal and method for controlling the same - Google Patents

Abstract

The present invention relates to a mobile terminal including a camera and a control method thereof. The mobile terminal according to the present invention includes the camera including an image sensor corresponding to a first aspect ratio and a control unit for controlling the camera to capture an image with the first aspect ratio in response to an image capturing request. The control unit divides the image with the first aspect ratio into a reference region and a correction region according to a preset reference and scales a part included in the correction region excluding the reference region of the image with the first aspect ratio so that the image with the first aspect ratio has a second aspect ratio different from the first aspect ratio. Accordingly, the present invention can prevent the image from being entirely distorted.

Description

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

The present invention relates to a mobile terminal having a camera and a control method thereof.

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. .

Meanwhile, in recent years, as the utilization of the camera provided in the terminal has increased, the terminal is equipped with a plurality of cameras to expand the functions of the camera. On the other hand, the thickness of the camera can be changed according to the aspect ratio of the camera lens. Also, as the thickness of the camera increases, the thickness of the terminal may increase, or the camera may be exposed to the outside of the terminal. Accordingly, it is necessary to develop a method of acquiring an image having an aspect ratio to be implemented while preventing the thickness of the terminal from being thickened due to the thickness of the camera or exposing the camera from the terminal.

It is an object of the present invention to provide a mobile terminal capable of acquiring an image captured by a camera lens corresponding to a second aspect ratio using a camera lens corresponding to a first aspect ratio and a control method thereof.

It is an object of the present invention to provide a mobile terminal capable of acquiring an image having a second aspect ratio without loss of an image having a first aspect ratio when converting or scaling an image having a first aspect ratio into an image having a second aspect ratio, And a control method thereof.

The mobile terminal according to the present invention includes a camera including an image sensor corresponding to a first aspect ratio, and a control unit for controlling the camera so that an image having the first aspect ratio is captured in response to a video image pickup request, Wherein the image having the first aspect ratio is divided into a reference region and a correction region according to a preset reference and the image having the first aspect ratio has a second aspect ratio different from the first aspect ratio, And scaling a portion included in the correction region excluding the reference region.

In an embodiment, the reference region is located at a central portion of the image having the first aspect ratio, and the correction region is located at both sides of the center portion of the image having the first aspect ratio.

In one embodiment of the present invention, the correction region includes a portion corresponding to both edges of the image having the first aspect ratio.

In one embodiment of the present invention, the image has a width and a length, and the control unit enlarges a portion of the image having the first aspect ratio included in the correction region excluding the reference region in the horizontal direction, The scaling is performed such that an image corresponding to the second aspect ratio having a horizontal length longer than the horizontal length of the image having the first aspect ratio is generated.

In one embodiment of the present invention, the image having the first aspect ratio includes a graphic object corresponding to a subject to be photographed, and the control unit displays the portion including the graphic object in the image having the first aspect ratio, And the reference area is set as the reference area.

In the embodiment, the subject to be photographed is a subject to be focused by the camera.

In one embodiment of the present invention, when the image capturing request is a moving image capturing request, the control unit changes the degree of scaling of the portion included in the correction region in the image having the first aspect ratio according to the moving speed of the subject .

In one embodiment of the present invention, the image has a width and a length, and the control unit enlarges a portion of the image having the first aspect ratio included in the correction region excluding the reference region in the horizontal direction, The scaling is performed so that an image corresponding to the second aspect ratio having a width longer than the width of the image having the first aspect ratio is generated, and the scaling is performed on the image having the first aspect ratio in accordance with the moving speed of the object. And the degree of expansion of the portion included in the area in the horizontal direction is changed.

The control unit changes the position of the reference area in the image having the first aspect ratio so that the graphic object corresponding to the subject is included in the reference area in accordance with the movement of the subject. do.

In one embodiment of the present invention, when the plurality of subjects to be photographed are plural, the control unit may include a plurality of reference points each corresponding to a portion including graphical objects corresponding to the plurality of subjects in the image having the first aspect ratio, And scales a portion of the image having the first aspect ratio excluding the plurality of reference areas.

The display device may further include a touch screen for outputting an image having the first aspect ratio photographed through the camera, wherein the control unit displays the image having the first aspect ratio on the touch screen, The method comprising: setting a reference area in an image having the first aspect ratio on the basis of a first point at which the touch of the preset method is applied; And scaling the portion included in the correction region excluding the reference region set based on the point.

In a preferred embodiment, when the touch of the predetermined type is applied to a second point different from the first point in a state in which the image having the first aspect ratio is scaled to have the second aspect ratio, The reference area is changed on the basis of the second point and the scaled image is scaled again to have the second aspect ratio on the basis of the changed reference area.

According to the mobile terminal and the control method therefor according to the present invention as described above, an image having the first aspect ratio is scaled except for the reference region, and an image having the second aspect ratio is generated, .

Further, in the mobile terminal according to the present invention, a part of the image having the first aspect ratio is expanded not to cut or delete part of the image having the first aspect ratio in order to make the image having the second aspect ratio. Therefore, an image having the second aspect ratio can be obtained without a loss in the image having the first aspect ratio.

Further, in the mobile terminal according to the present invention, a camera lens having a first aspect ratio, which is thinner than a camera lens having a second aspect ratio, is disposed, and an image having the second aspect ratio is acquired using an image having the first aspect ratio , It is possible to obtain an image having a desired aspect ratio while reducing the thickness of the terminal.

1A is a block diagram illustrating a mobile terminal according to the present invention.
FIGS. 1B and 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions.
2 is a conceptual diagram for explaining an aspect ratio according to the present invention.
3 is a flowchart illustrating a scaling method according to the present invention.
4A, 4B, 4C, 5A and 5B are conceptual diagrams for explaining a scaling method according to the present invention.
6A, 6B, 6C, 7A, 7B, and 8 are conceptual diagrams illustrating a method of performing scaling according to the characteristics of a subject.
FIGS. 9A, 9B, 10A, 10B, and 11 are conceptual diagrams illustrating a method of performing scaling based on a user selection in a mobile terminal according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. 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.

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 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 And an external terminal, or a server on a mobile communication network established according to a long term evolution (AR), a long term evolution (AR), or the like.

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

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

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

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

The short-range communication module 114 is for short-range communication, and includes Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB) (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology. The short-range communication module 114 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 an image frame such as a still image or moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. [ A plurality of cameras 121 provided in the mobile terminal 100 may be arranged to have a matrix structure and various angles or foci may be provided to the mobile terminal 100 through the camera 121 having the matrix structure A plurality of pieces of image information can be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure 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 fluorescent light sensor, a mirror reflection fluorescent light sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is electrostatic, the proximity sensor 141 can be configured to detect the proximity of the object with a change of the electric field along the proximity of the object having conductivity. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

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

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

For example, the touch sensor may be configured to convert a change in a pressure applied to a specific portion of the touch screen or a capacitance generated 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 .

Also, 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 related to vibration and sound of various patterns outputted when a touch is input on the touch screen.

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

Meanwhile, as described above, the control unit 180 controls the operations related to the application program and the general operation of the mobile terminal 100. [ For example, when the state of the mobile terminal 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.

2 is a conceptual diagram for explaining an aspect ratio according to the present invention.

The thickness of the camera varies depending on the aspect ratio of the image sensor provided in the camera. For example, as shown in FIG. 2 (a), an image sensor having a first aspect ratio (for example, a 4: 3 aspect ratio) and a second aspect ratio For example, a 16: 9 aspect ratio) may be different from each other.

More specifically, image sensors having the same number of pixels have different aspect ratios (or aspect ratios) of sensors depending on the aspect ratios of the sensors. Therefore, the larger the ratio, the greater the outer diameter surrounding the sensor. As shown in the drawing, a second aspect ratio (for example, a 16: 9 aspect ratio, see FIG. 2 (b)) is larger than an outer diameter according to a first aspect ratio (for example, a 4: 3 aspect ratio, ) Is larger than the outer diameter.

Further, in an image sensor having different aspect ratios, distances between the image sensor and the lens are different from each other in order to realize the same angle of view. The distance T1 between the image sensor having the first aspect ratio (for example, a 4: 3 aspect ratio, see FIG. 2 (a)) and the lens, assuming that the same angle of view is realized, The distance T1 between the image sensor and the lens having an aspect ratio (for example, a 16: 9 aspect ratio, see FIG. 2B) is different, and the second aspect ratio (for example, 16: 9 aspect ratio, (see Fig. 2 (b)) and the distance (T2) between the image sensor and the lens having the first aspect ratio (for example, a 4: 3 aspect ratio, ). ≪ / RTI >

Therefore, a camera having an image sensor having a second aspect ratio (for example, a 16: 9 aspect ratio, see FIG. 2B) has a first aspect ratio (for example, a 4: it is found that the thickness becomes thicker in the thickness direction than a camera equipped with an image sensor having the above-described image sensor (see a).

Therefore, a camera having a first aspect ratio (for example, a 4: 3 aspect ratio, an image aspect ratio of 2: 1, A camera with an image sensor having a) can be further downsized in terms of outer diameter and thickness. On the other hand, in consideration of the thickness of the terminal and the arrangement among the other components, it is advantageous to arrange a more compact camera (first aspect ratio (for example, 4: 3 aspect ratio, see FIG.

On the other hand, there is a need to convert an image captured through a camera equipped with an image sensor having a first aspect ratio into an image having a second aspect ratio. Namely, there is a need to make an image having an aspect ratio of 4: 3 as a picture having an aspect ratio of 16: 9. In this case, an image having an aspect ratio of 4: It is necessary to generate an image.

Hereinafter, a method for switching an image having a first aspect ratio to an image having a second aspect ratio and an image having a second aspect ratio without loss of angle of view will be described in more detail with reference to the accompanying drawings. FIG. 3 is a flowchart for explaining a scaling method according to the present invention, and FIGS. 4A, 4B, 4C, 5A and 5B are conceptual diagrams illustrating a scaling method according to the present invention.

The mobile terminal according to the present invention is assumed to have at least one camera including an image sensor having a first aspect ratio. The embodiments of the present invention will now be described with reference to the case where an image is captured through a camera corresponding to the first aspect ratio.

Thus, when a video shooting shooting request is received and the video is shot through the camera, an image having the first aspect ratio is acquired.

First, in the mobile terminal according to the present invention, a process of capturing an image having a first aspect ratio is performed in response to a request for capturing an image (S310).

Here, the image capturing request can be received in various ways. For example, a video capture request may be received with the camera capability application running. The video capture request may be a touch input to an icon to which the video capture command is linked (or associated), and a voice command corresponding to the video capture may be received. Also, the image capturing request can be received through physical force applied to a hardware touch key or push key associated with the image capturing command.

On the other hand, the image capturing command may be received even when the camera function application is not being executed, and the camera function application may be executed after the image capturing command is received.

On the other hand, if the image capturing request is received through any of the various methods, the control unit 180 captures an image having the first aspect ratio through the camera corresponding to the first aspect ratio. As shown in FIG. 4A, the camera corresponding to the first aspect ratio may be a camera having an image sensor having a 4: 3 aspect ratio. Conventionally, in order to create an image having a second aspect ratio (16: 9 aspect ratio) different from the first aspect ratio by using an image having a first aspect ratio (4: 3 aspect ratio) Likewise, at least one of the upper and lower ends of the image 401 having the first aspect ratio is cropped (or cut off or deleted) to form a certain portion 401a and 401b, Likewise, an image having a second aspect ratio (16: 9 aspect ratio) was created. However, in this case, since a part of the image 401 having the first aspect ratio (4: 3 aspect ratio) is cut off, there is a loss of the image, that is, when a part of the image of the first aspect ratio is cropped, An image such as that shot with a camera corresponding to an angle of view smaller than the angle of view of the corresponding camera is generated as a result, so that there is a view angle loss.

In operation S320, when an image having the first aspect ratio is captured in step S310, the image having the first aspect ratio is divided into a reference area and a correction area according to a preset reference (S320).

Here, the predetermined criteria for distinguishing the reference area and the correction area may vary. As an example, the reference area may be a middle area in a state where the first image is divided into a plurality of parts.

In this case, as shown in (a) of FIG. 4B, the control unit 180 may divide the first image 410 along one direction (for example, in the vertical direction with respect to the image capturing direction) And an intermediate region among a plurality of regions 410a, 410b, and 410c divided into odd numbers can be set as a reference region.

The reference area 410a is located at a central part of the image 410 having the first aspect ratio and the correction areas 410b and 410c are positioned at the center part 410a of the image 410a having the first aspect ratio As shown in Fig.

As shown in the figure, the correction areas 410b and 410c may include portions corresponding to both edges of the image 410a having the first aspect ratio. On the other hand, when dividing into a plurality of regions, each region can be evenly divided.

Further, when dividing into a plurality of regions, each region may not be evenly divided. In this case, the control unit 180 can determine the size of the reference area according to the range of the area occupied by the graphic object corresponding to the object included in the reference area. The size of the correction area can be determined depending on the size of the reference area.

On the other hand, if the reference area and the correction area are distinguished, the controller 180 determines whether the image 410 having the first aspect ratio has the second aspect ratio different from the first aspect ratio, Scaling is performed on a portion included in the correction regions 410b and 410c except for the reference region 410a (S330). Then, the process of storing the scaled image in the memory is performed (S340).

More specifically, the control unit 180 maintains the reference area 410a at the same display ratio as that of the image 410 having the first aspect ratio, and controls the correction areas 410b and 410c excluding the reference area 410a , The image 410 'can be generated by expanding in one direction, as shown in FIG. 4B (b), to a second aspect ratio.

The image 410 having the first aspect ratio is made to have a horizontal length and a vertical length based on the image capturing direction. The control unit 180 determines the portion of the image 410 having the first aspect ratio included in the correction regions 410b and 410c except for the reference region 410a as shown in Figure 4B, It can be extended in the horizontal direction. As a result, scaling can be performed so that an image 410 'corresponding to the second aspect ratio having a horizontal length longer than the horizontal length of the image 410 having the first aspect ratio is generated.

In the present invention, 'scaling' may mean enlarging or reducing at least a part of an image having a first aspect ratio.

The control unit 180 can increase the expansion ratio linearly as the distance from the reference area increases.

In addition, the controller 180 can extend the correction area equally. In this case, the degree of expansion of the portion included in the correction region may vary depending on the range occupied by the reference region. That is, the larger the area occupied by the reference area, the smaller the correction area. Thus, in order to generate an image having the second aspect ratio, the degree of expansion of the part included in the correction area becomes larger.

For example, as shown in FIG. 5A, the controller 180 may divide the image 510 having the first aspect ratio into a reference area 510a and a correction area 510b and 510c, By expanding the portion included in the correction regions 510b and 510c, it is possible to generate the image 520 having the second aspect ratio as shown in (b) of FIG. 5A. The distance D1 between the image 510 having the first aspect ratio and the image 510 'having the second aspect ratio is the same as the distance D1 between the pixels included in the reference region 510a. The distances between the pixels 510 included in the correction areas 510b and 510c in the image 510 having the first aspect ratio and the image 510 'having the second aspect ratio may be different from each other. The distance D1 between the pixels in the correction areas 510b and 510c of the image 510 having the first aspect ratio is equal to the distance between the pixels in the correction areas 510b and 510c of the image 510 ' May be different from the distance D2 '. The distance D2 'between pixels in the correction areas 510b and 510c of the image 510' having the second aspect ratio is the distance D1 between the pixels in the correction areas 510b and 510c of the image 510 having the first aspect ratio Far more.

Further, the control unit 180 can further refine the correction region, as shown in FIG. 5B, and further away from the reference region 510a, the distance between the pixels can be further increased. In this case, as the area farther from the reference area increases, the degree of expansion of the image becomes larger, which may have a linear or non-linear expansion degree.

On the other hand, in the present invention, the portion included in the reference area is not expanded, which prevents the user from feeling the image distorted. That is, the user is provided with the image of the original ratio with respect to the portion included in the reference region, and receives the expanded image only with respect to the correction region.

4C, the image 401 having the first aspect ratio is displayed on the image 401 having the first aspect ratio, as shown in FIG. 4C, The image 402 having the first aspect ratio is generated by cropping the portions 401a and 401b of the image 401 having the first aspect ratio and not generating the image 402 having the second aspect ratio as shown in FIG. The image 403 having the second aspect ratio can be generated by extending the portion corresponding to the correction region except for the first aspect ratio in one direction.

Therefore, as shown in Fig. 4C, the image generated to have the second aspect ratio in accordance with the present invention is the original image 401 (see Fig. 4C) having the first aspect ratio, All portions can be included, thereby preventing a loss in camera angle of view.

On the other hand, the process of switching from the image having the first aspect ratio to the image having the second aspect ratio can be always performed when the image capturing is performed based on the image capturing request. In this case, the user can not see that the image having the first aspect ratio is obtained, and the user can receive only the image having the second aspect ratio. That is, when the image capturing is performed, the control unit 180 can automatically convert the image having the first aspect ratio into the image having the second aspect ratio.

Alternatively, the conversion process from the image having the first aspect ratio to the image having the second aspect ratio may be performed based on the request of the user. That is, the control unit 180 can switch the image having the first aspect ratio to the image having the second aspect ratio only when the user has received the image switching request.

According to the mobile terminal and the control method therefor according to the present invention as described above, an image having the first aspect ratio is scaled except for the reference region, and an image having the second aspect ratio is generated, .

Further, in the mobile terminal according to the present invention, a part of the image having the first aspect ratio is expanded not to cut or delete part of the image having the first aspect ratio in order to make the image having the second aspect ratio. Therefore, an image having the second aspect ratio can be obtained without a loss in the image having the first aspect ratio.

Further, in the mobile terminal according to the present invention, a camera lens having a first aspect ratio, which is thinner than a camera lens having a second aspect ratio, is disposed, and an image having the second aspect ratio is acquired using an image having the first aspect ratio , It is possible to obtain an image having a desired aspect ratio while reducing the thickness of the terminal.

On the other hand, in the above embodiment, a method has been described in which a center portion is set as a reference region in an image having a first aspect ratio and both side portions are set as a correction region with reference to a reference region, and the correction region is expanded in one direction .

The present invention can further perform a scaling on an image by setting a reference area on the basis of a subject.

As shown in FIG. 6A, a graphic object corresponding to at least one subject may be included in the image 610 having the first aspect ratio. Here, the subject is an object to be photographed, and in the city, a lion statue, a tower, a person, or the like can be a subject.

In this manner, when a graphic object corresponding to at least one subject is included in the image 610, the control unit 180 can set a reference area based on a specific subject. That is, according to the scaling method of the present invention, since the portion included in the correction region except for the reference region is expanded, the graphic object included in the correction region appears to be enlarged.

Accordingly, when the graphic object included in the correction area corresponds to a subject that the user is interested in, the user can see the distorted graphic object, and thus the satisfaction with the image can be lowered. In addition, when the subject included in the correction area corresponds to a person, since a graphic object corresponding to a person is increased, it can be displayed on the image in a body shape that is larger than the actual person's body shape.

Accordingly, in order to prevent distortion of the subject due to scaling of the image, the control unit 180 determines whether or not a portion including a specific subject according to the characteristics of the subject or predetermined criteria (or a graphic object Can be set as the reference area, and the remaining part can be set as the correction area.

As an example, the control unit 180 can set the reference area on the basis of a subject, which is the object of focus of the camera, among a plurality of subjects to be photographed. 6A, when the camera is focused on the tower 612 and the imaging is performed, the control unit 180 displays, in the image 610, a graphic object corresponding to the tower (e.g., 611 can be set as the reference area 610a and the other parts can be set as the correction areas 610b and 610c.

As another example, the control unit 180 may set, as a reference area, a portion including a subject corresponding to a predetermined type of at least one subject, as shown in (b) of FIG. Here, the subject corresponding to the preset type may be a person (or a person). The subject corresponding to the predetermined type can be determined based on the user's selection.

6A, the control unit 180 displays a portion including a graphic object 611 corresponding to a subject corresponding to a person among a plurality of subjects to be photographed as a reference region 610a ), The portion excluding the reference region 610a is set as the correction region 610b, 610c, and the portion included in the correction region is expanded to generate the image 610 'corresponding to the second aspect ratio have.

On the other hand, the control unit 180 can determine which portion of the image is to be set as the reference region according to the shooting mode of the current image.

For example, when the current photographing mode is a mode in which photographing is centered on a person, a portion including a graphic object corresponding to a person (or a person) in the image can be set as a reference area. If the control unit 180 is in a mode such as a landscape mode in which object-oriented photography is performed instead of a portrait, a portion including a graphic object corresponding to an object in the image may be set as a reference area.

The control unit 180 may determine which graphic object among the graphic objects included in the image having the first aspect ratio is included in the reference area, based on the currently set shooting mode. That is, the position of the reference area is changed according to the currently set shooting mode.

When the currently set shooting mode is the first shooting mode, the control unit 180 sets a reference area on the basis of a graphic object corresponding to a person, and if the currently set shooting mode is the same as the first shooting mode, 2 photographing mode, a reference area can be set based on a graphic object corresponding to an object.

If the control unit 180 requests the user to focus on a specific subject through a preview screen displayed on the touch screen before a video shooting request is made, The reference area can be set as a reference. This is to prevent a distorted image from being photographed against a subject that the user is interested in.

In the mobile terminal according to the present invention, the controller 180 may apply the above-described examples to moving picture shooting in the same manner. If the position of the graphic object included in the reference area is changed in the moving image photographed so as to correspond to the first aspect ratio, the control unit 180 may change the position of the reference area according to the change of the graphic object.

6B, when the specific subject is moved with the reference area set on the basis of a specific subject (for example, a person), the control unit 180 sets the position of the reference area to the specific subject As shown in FIG. 6B, when the position of the graphic object corresponding to a specific object is shifted, the control unit 180 moves the position of the graphic object corresponding to the specific object, And the scaling of the portion included in the reset correction regions 620b and 620c corresponding to the changed reference region 620a may be performed.

Meanwhile, in the mobile terminal according to the present invention, the control unit 180 can set the reference area according to the distance between the subject and the camera.

That is, the control unit 180 may set, as a reference area, a portion including a graphic object corresponding to a subject close to the camera on the basis of the camera. For example, as shown in (a) and (b) of FIG. 6C, when a person is located closest to the camera as a reference, the controller 180 determines whether a person Can be set as the reference area 630a.

6C, the control unit 180 maintains the display ratio of the correction areas 630b and 630c among the reference area 730a and the correction areas 630b and 630c as they are, The reference area 730a can be expanded.

In this case, if the subject corresponding to the graphic object included in the reference area 630a is a person, the control unit 180 may not extend the graphic object corresponding to the person. That is, since the user does not want the graphical object corresponding to the person to be enlarged, the user can reflect the needs of the user according to the present invention.

On the other hand, in the mobile terminal according to the present invention, scaling can be performed in the moving image having the first aspect ratio so that the degree of expansion of the correction area is changed according to the moving speed of the object corresponding to the graphic object included in the reference area. The control unit 180 can express the speed feeling of the subject to the user by varying degrees of expansion of the correction region according to the speed of the subject in order to realistically express the movement of the subject.

That is, the control unit 180 may vary the degree of scaling of the portion included in the correction region in the image (or moving image) having the first aspect ratio according to the moving speed of the subject.

As shown in FIGS. 7A and 7B, when the subject corresponding to the graphic object included in the reference area 710a is an automobile, the controller 180 controls the correction area 710b, and 710c can be made different. On the other hand, in this case, a part of the image may be cut off. That is, when the degree of expansion of the correction region is large, only a part of the original image can be included in the converted image.

The control unit 180 can realistically express the movement of the subject by controlling the degree of expansion of the correction area to be larger as the moving speed of the subject is larger (or faster).

7A and 7B, when the control unit 180 determines that the reference area is set with reference to a specific subject (for example, an automobile) and the specific subject is moved, The position of the reference area can be changed on the basis of the specific subject and the degree of expansion of the correction area can be set differently according to the moving speed of the specific subject. 7B, when the position of the graphic object corresponding to a specific object is shifted, the control unit 180 determines the reference area 720a based on the positional shift of the graphic object Scaling the portion included in the correction regions 720b and 720c that have been reset corresponding to the changed reference region 720a and vary the degree of expansion of the correction region according to the moving speed of the subject.

On the other hand, in the mobile terminal according to the present invention, when there are a plurality of subjects that satisfy a predetermined criterion or a plurality of subjects whose focal points are targeted, the control unit 180 determines whether or not each of the graphical objects corresponding to the plurality of subjects Area can be set.

8 (a), when a plurality of subjects to be photographed are a plurality of subjects, the control unit 180 causes the graphic objects 810 corresponding to the plurality of subjects in the image 810 having the first aspect ratio A plurality of reference areas 810c and 810b can be set corresponding to the parts including the reference patterns 811 and 812, respectively.

8B, the control unit 180 expands a portion included in the plurality of reference regions 810c and 810b, and the display ratio of the remaining region 810a excluding the reference region is Can be maintained.

8 (c), the control unit 180 maintains the display ratio of the plurality of reference areas 810c and 810b, and enlarges the part included in the remaining area excluding the reference area . In this case, the control unit 180 scales a portion of the image 810 having the first aspect ratio except for the plurality of reference regions 810c and 810b, and outputs the image 810 'corresponding to the second aspect ratio, ').

In addition, although not shown, the control unit 180 can set a plurality of reference areas in accordance with a plurality of subjects, as well as one reference area including a plurality of subjects. In addition, an image corresponding to the second aspect ratio can be generated by performing expansion on the remaining region with reference to one reference region.

As described above, in the mobile terminal according to the present invention, by performing image scaling in various ways according to the characteristics of the subject, it is possible to provide an optimal image to the user.

Hereinafter, a method of setting a reference area based on a user's selection will be described in detail with reference to the accompanying drawings. FIGS. 9A, 9B, 10A, 10B, and 11 are conceptual diagrams illustrating a method of performing scaling based on a user selection in a mobile terminal according to the present invention.

In the mobile terminal according to the present invention, it can be determined based on which part of the image having the first aspect ratio is set as the reference area, based on the user's selection.

The control unit 180 arbitrarily sets a reference region in the image having the first aspect ratio according to the default reference, generates an image having the second aspect ratio, and then inputs the user input (for example, Touch input), and can perform extension to the remaining area based on the changed reference area.

For example, as shown in FIG. 9A, the control unit 180 sets the center portion of the image as the reference region 910a and sets the remaining regions as the correction regions 910b and 910c, The image 910 having the second aspect ratio can be generated by expanding the portion included in the correction region.

9A, when one area or a specific graphic object 911 is selected by the user in a predefined manner by the touch, the control unit 180 controls the display of the first graphic object 911, A region including the specific graphic object 911 may be reset to the reference region 910a. Then, an image 910 'having a second aspect ratio can be created by extending a portion included in the remaining region based on the re-set reference region.

In the above example, a method of expanding a portion included in the remaining region based on the re-set reference region has been described. However, the control unit 180 may extend the re-set reference region and display the portion included in the remaining region It is also possible to keep the ratio as it is.

9B, in the image scaled to have the second aspect ratio, as shown in FIG. 9B (b), the control unit 180 determines whether or not a predetermined method When a touch is applied, expansion (or enlargement) of the corresponding portion can be performed as shown in (c) of FIG. 9B.

On the other hand, the control unit 180 can change the enlarged portion according to the movement of the touch to the specific point. In this case, the reference area is reset on the basis of the specific point, and the part included in the reset reference area can be enlarged. Accordingly, a part of the portion included in the reference area can be cut off.

Also, although not shown, the control unit 180 may output the image having the first aspect ratio first, then set the reference area from the user, and perform the scaling on the image with reference to the reference area Do.

As another example, in the mobile terminal according to the present invention, the image 1010 having the first aspect ratio is photographed and outputted, as shown in (a) of Fig. 10A, 10A, the image 1010 'having the first aspect ratio is generated so that the image 1010' having the second aspect ratio is generated as shown in (c) of FIG. 10A, Scaling can be performed. The control unit 180 divides the reference area 1010a and the correction areas 1010b and 1010c according to a preset reference based on the touch of the predetermined method and outputs the divided area 1010b and 1010c included in the correction areas 1010b and 1010c Can be performed.

10B and 10B, the control unit 180 determines whether the image 1010 having the first aspect ratio is photographed and outputted to a point of the image 1010 When a touch of a predetermined method is applied, a subject having a first aspect ratio is selected so as to generate an image 1010 'having a second aspect ratio, as shown in FIG. 10 (c) Scaling for the image 1010 may be performed. The control unit 180 divides the reference area 1010a and the correction areas 1010b and 1010c according to a preset reference based on the touch of the predetermined method and outputs the divided area 1010b and 1010c included in the correction areas 1010b and 1010c Can be performed. In this case, the control unit 180 can set the reference area directly from the user.

In this case, the touch of the preset method may be a pinch-out touch, and the controller 180 may control the degree of expansion of the image and the size of the reference area Size < / RTI >

For example, the control unit 180 determines that the degree of detachment of the pinch-out touch is different for each of the touches at the first distance and at the second distance from the first distance, The degree of extension and the range of reference areas can be set.

The farther the pinch-out touch is, the greater the degree of expansion with respect to the correction region, and the smaller the size of the reference region relatively. This is to ensure that there is no part where the image is cut off.

As another example, in the mobile terminal according to the present invention, as shown in FIG. 11, it is possible to utilize icons corresponding to different configurations so that the user can select the reference area and the correction area have.

11 (a) and 11 (b), when a specific menu icon 1120 is selected by the user, the controller 180 displays icons 1130 corresponding to different configurations, Can be output. These icons 1130 correspond to those in which the reference area and the correction area are distinguished according to different configurations. 11 (c), when any one of these icons is selected, the control unit 80 can distinguish the reference area and the correction area with the configuration corresponding to the selected icon 1130a . 11 (d), the control unit 180 selects one of the reference areas 1110c and 1110b and the correction areas 1110a, 1110d, and 1110d, which are divided into the components corresponding to the selected icon 1130a , The correction regions 1110a, 1110d, and 1110d excluding the reference regions 1110c and 1110b may be expanded to generate an image having the second aspect ratio.

The icons 1130 include information on whether to expand the reference area or the correction area, ii) how many reference areas are to be set, iii) information on where to set the position of the reference area, , Etc., various combinations of information on the construction and extension method of the reference area and the correction area can be linked with each other.

In addition, the selection of icons 1130 can be made by a drag-and-drop style touch starting from the icon and ending in the image. At this time, the control unit 180 may set a region including the graphic object outputted at the point where the icon is dropped or the point where the icon is dropped as a reference region.

As described above, in the mobile terminal according to the present invention, user convenience can be improved by setting or changing the reference area in various ways based on the user's selection.

In the above embodiment, the extension of the image in the horizontal direction has been described with reference to the output direction of the image. However, in the mobile terminal according to the present invention, the vertical direction or the combination of the horizontal direction and the vertical direction, It is also possible to generate an image having a second aspect ratio different from the first aspect ratio.

According to the mobile terminal and the control method therefor according to the present invention as described above, an image having the first aspect ratio is scaled except for the reference region, and an image having the second aspect ratio is generated, .

Further, in the mobile terminal according to the present invention, a part of the image having the first aspect ratio is expanded not to cut or delete part of the image having the first aspect ratio in order to make the image having the second aspect ratio. Therefore, an image having the second aspect ratio can be obtained without a loss in the image having the first aspect ratio.

Further, in the mobile terminal according to the present invention, a camera lens having a first aspect ratio, which is thinner than a camera lens having a second aspect ratio, is disposed, and an image having the second aspect ratio is acquired using an image having the first aspect ratio , It is possible to obtain an image having a desired aspect ratio while reducing the thickness of the terminal.

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. The foregoing detailed description, therefore, should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (17)

A camera including an image sensor corresponding to a first aspect ratio;
And a controller for controlling the camera so that an image having the first aspect ratio is captured in response to a request for image capturing,
Wherein,
An image having the first aspect ratio is divided into a reference area and a correction area according to a preset reference,
Wherein the scaling unit scales a part of the image having the first aspect ratio included in the correction area excluding the reference area so that the image having the first aspect ratio has a second aspect ratio different from the first aspect ratio. . The method according to claim 1,
Wherein the reference region is located at a central portion in an image having the first aspect ratio,
Wherein the correction region is located on both sides of the center portion of the image having the first aspect ratio. 3. The method of claim 2,
Wherein the correction region includes a portion corresponding to both edges of the image having the first aspect ratio. The method of claim 3,
Wherein the image has a horizontal length and a vertical length,
Wherein,
Wherein the second aspect ratio of the image having the first aspect ratio is greater than that of the image having the first aspect ratio by extending the part of the image having the first aspect ratio included in the correction area excluding the reference area in the horizontal direction, And the scaling is performed so that an image is generated. The method according to claim 1,
Wherein the image having the first aspect ratio includes a graphic object corresponding to a subject to be photographed,
Wherein,
And sets a portion including the graphic object in the image having the first aspect ratio as the reference region. 6. The method of claim 5,
Wherein the subject to be photographed is a subject to be focused by the camera. 6. The method of claim 5,
Wherein the subject to be photographed is a subject of a predetermined type. 8. The apparatus of claim 7,
Wherein the determining step determines whether to include the graphic object among the graphic objects included in the image having the first aspect ratio on the basis of the currently set shooting mode. 9. The apparatus according to claim 8,
If the currently set shooting mode is the first shooting mode, setting a reference area based on a graphic object corresponding to a person,
Wherein the setting unit sets a reference area based on a graphic object corresponding to an object when the currently set shooting mode is a second shooting mode different from the first shooting mode. 7. The apparatus of claim 6,
If the video capture request is a video capture request,
Wherein degree of scaling of a portion included in the correction region varies in an image having the first aspect ratio according to a moving speed of the subject. 11. The method of claim 10,
Wherein the image has a horizontal length and a vertical length,
Wherein,
Wherein the second aspect ratio of the image having the first aspect ratio is greater than that of the image having the first aspect ratio by extending the part of the image having the first aspect ratio included in the correction area excluding the reference area in the horizontal direction, Performing the scaling so that an image is generated,
Wherein an extent of the portion included in the correction region in the horizontal direction varies in an image having the first aspect ratio according to a moving speed of the subject. 11. The apparatus according to claim 10,
And changes the position of the reference area in the image having the first aspect ratio so that the graphic object corresponding to the subject is included in the reference area according to the movement of the subject. 6. The apparatus of claim 5,
When a plurality of subjects are to be photographed,
Setting a plurality of reference areas respectively corresponding to portions including graphic objects corresponding to the plurality of subjects in the image having the first aspect ratio,
And scales a portion of the image having the first aspect ratio excluding the plurality of reference regions. The method according to claim 1,
And a touch screen for outputting an image having the first aspect ratio photographed through the camera,
Wherein,
When a predetermined type of touch is applied on the touch screen in a state in which an image having the first aspect ratio is output,
Setting the reference area in an image having the first aspect ratio on the basis of a first point at which the predetermined touch is applied,
Wherein the scaling unit scales a portion included in the correction region excluding the reference region set based on a first point at which the touch of the preset method is applied. 15. The apparatus of claim 14,
When the predetermined type of touch is applied to the second point different from the first point in a state in which the image having the first aspect ratio is scaled to have the second aspect ratio,
Changing the reference area based on the second point,
And scales the image scaled to have the second aspect ratio based on the changed reference area. A method of controlling a mobile terminal having a camera including an image sensor corresponding to a first aspect ratio,
Capturing an image having the first aspect ratio in response to a request for capturing an image;
Dividing an image having the first aspect ratio into a reference area and a correction area according to a preset reference; And
And scaling a portion of the image having the first aspect ratio included in the correction region excluding the reference region so that the image having the first aspect ratio has a second aspect ratio different from the first aspect ratio, Of the mobile terminal. 17. The method of claim 16,
Wherein the reference region is located at a center portion of the image having the first aspect ratio and the correction region is located at both sides of the center portion of the image having the first aspect ratio.

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