KR101873411B1 - Mobile terminal and control method for the same - Google Patents

Abstract

The present invention relates to a mobile terminal capable of image capturing and a control method thereof. A mobile terminal according to an embodiment of the present invention includes a photographing unit, a display unit for outputting an image input through the photographing unit, a user input unit configured to select at least one of a plurality of objects included in the image, And controls the photographing unit to focus on the selected object based on the selected object. When the magnification change command for changing the magnification of the image is inputted, the magnification of the image is changed around the selected object corresponding to the magnification change command And a control unit.

Description

Technical Field [0001] The present invention relates to a mobile terminal and a control method thereof,

The present invention relates to a mobile terminal capable of image capturing and a control method thereof.

The mobile terminal may be configured to perform various functions. Examples of such various functions include a data and voice communication function, a function of photographing a video or a moving image through a camera, a voice storage function, a music file playback function through a speaker system, and an image or video display function. Some mobile terminals include additional functions to execute games, and some other mobile terminals are also implemented as multimedia devices. Moreover, recent mobile terminals can receive a broadcast or multicast signal to view a video or television program.

Further, efforts for supporting and increasing the functions of the mobile terminal continue. Such efforts include not only changes and improvements in structural components that form the mobile terminal, but also improvements in software or hardware.

Further, when a moving object is photographed through a camera included in such a mobile terminal, there is a problem in that an unfocused image is photographed because it can not immediately respond to the movement of the subject.

An object of the present invention is to provide a mobile terminal and a control method thereof capable of adjusting a focus in accordance with the movement of a subject.

It is another object of the present invention to provide a mobile terminal capable of adjusting a magnification around a subject and a control method thereof.

A mobile terminal according to an embodiment of the present invention includes a camera, a display unit for outputting an image input through the camera, a user input unit configured to receive at least one of a plurality of objects included in the image, And controlling the magnification of the image based on the selected object in correspondence with the magnification control command while maintaining the focus based on the selected object.

In one embodiment, the mobile terminal according to the present invention further includes a detector for detecting a motion of the selected object, and when a motion of the selected object is detected as a detection result, the focus of the photographing unit is readjusted do.

In one embodiment, the controller adjusts a parameter of an image whose magnification is changed in accordance with the magnification ratio command to a predetermined value, and the parameter is at least one of color, white balance, brightness, saturation, contrast, and exposure .

In one embodiment, a plurality of icons corresponding to different magnifications are displayed on the display unit, and either one of the plurality of icons is dragged to the selected object by a user, or the selected object is displayed on any one of the icons The magnification of the image is changed to a magnification corresponding to one of the icons.

In one embodiment, the control unit sets scaling information corresponding to each of the plurality of icons differently according to a position where the selected object is output on the display unit.

A mobile terminal and its control method according to an exemplary embodiment of the present invention detects movement of an object selected by a user and continuously adjusts the focus around the object in correspondence with the detected motion, .

In addition, the mobile terminal and the control method thereof according to an embodiment of the present invention display icons corresponding to different magnifications, so that the magnification of an image can be immediately adjusted according to a user's selection.

1 is a block diagram illustrating a mobile terminal according to an embodiment of the present invention.
2A and 2B are perspective views of a mobile terminal according to an exemplary embodiment of the present invention.
3 is a flowchart illustrating a method of controlling a mobile terminal according to an embodiment disclosed herein.
4, 5, and 6 are conceptual diagrams illustrating a method of controlling a mobile terminal according to an embodiment disclosed herein.
7 is a conceptual diagram for explaining a method of selecting a magnification in a mobile terminal according to an embodiment disclosed herein.
8 is a conceptual diagram for explaining a method of adjusting a magnification in a mobile terminal according to an embodiment disclosed herein.
9 is a conceptual diagram illustrating a method of outputting an image input through a camera in a mobile terminal according to an embodiment disclosed herein.
10 is a conceptual diagram illustrating a method of outputting an image related to a selected object in a mobile terminal according to an embodiment disclosed herein.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. In addition, it should be noted that the attached drawings are only for easy understanding of the embodiments disclosed in the present specification, and should not be construed as limiting the technical idea disclosed in the present specification by the attached drawings.

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

1 is a block diagram illustrating a mobile terminal according to one embodiment disclosed herein.

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

Hereinafter, the components will be described in order.

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

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

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

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

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

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

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

The mobile communication module 112 is configured to implement a video communication mode and a voice communication mode. The video call mode refers to a state of talking while viewing a video of the other party, and the voice call mode refers to a state in which a call is made without viewing the other party's video. In order to implement the video communication mode and the voice communication mode, the mobile communication module 112 is configured to transmit and receive at least one of voice and image.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

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

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

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

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

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

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

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like.

The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154, for example, for generating output related to visual, auditory, have.

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

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

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

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

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

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

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

Referring to FIG. 1, a proximity sensor may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

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

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

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

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

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

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

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

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

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

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read- A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

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

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

When the mobile terminal 100 is connected to an external cradle, the interface unit 170 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various commands A signal may be a path through which the signal is transmitted to the mobile terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 182 for multimedia playback. The multimedia module 182 may be implemented in the control unit 180 or may be implemented separately from the control unit 180.

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

If the condition of the mobile terminal satisfies the set condition, the controller 180 can execute a lock state for restricting the input of the control command of the user to the applications. Also, the controller 180 can control the lock screen displayed in the locked state based on the touch input sensed through the display unit (hereinafter, referred to as 'touch screen') 151 in the locked state.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

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

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays , Microprocessors, microprocessors, microprocessors, and other electronic units for carrying out other functions. In some cases, the embodiments described herein may be implemented by the controller 180 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein.

The software code may be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

Hereinafter, a structure of a mobile terminal or a mobile terminal in which components of the mobile terminal or the mobile terminal according to an embodiment of the present invention shown in FIG. 1 are arranged will be described.

FIG. 2A is a perspective view of a mobile terminal or a mobile terminal according to an embodiment of the present invention, and FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

FIG. 2A is a perspective view of a mobile terminal or a mobile terminal according to the present invention, and FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

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 slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

In the illustrated embodiment, the terminal body 100 (hereinafter, referred to as 'body') has a front surface, a side surface, and a rear surface. Further, the body has both ends formed along the longitudinal direction.

The body 100 includes a case (a casing, a housing, a cover, and the like) that forms an appearance. In this embodiment, the case may be divided into a front surface (hereinafter referred to as a 'front case') 101 and a rear surface (hereinafter referred to as a 'rear case'). A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

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

The terminal body 100 mainly includes a display unit 151, an audio output unit 152, a camera 121, user input units 130/131 and 132, a microphone 122, an interface 170, .

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 152 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 131 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. On the other hand, the microphone 122 is disposed at the other end of the body 100.

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal, and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

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

Referring to FIG. 2B, the rear surface of the terminal body, that is, the rear case 102, may further include an acoustic output unit 152 '. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the speakerphone mode during a call.

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

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all controlled by the touch pad 135. [ Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

In addition, a camera 121 'may be additionally mounted on the rear case 102 of the terminal body. The camera 121 may be a camera having a different image from the camera 121, having a photographing direction substantially opposite to the camera 121 (see FIG. 2A) mounted on the front case of the camera 121 '.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It can be made to have a high number of pixels. The camera 121 'may be installed in the terminal body 100 to be rotatable or pop-upable.

A flash 123 and a mirror 124 are additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror allows the user to illuminate the user's own face or the like in the case where the user intends to photograph (self-photograph) himself / herself using the camera 121 '.

An acoustic output unit 252 'may be further disposed on the rear surface of the terminal body. The sound output unit 252 'may implement the stereo function together with the sound output unit 252 (see FIG. 2A), and may be used for the implementation of the speakerphone mode in a call.

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

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all controlled by the touch pad 135. [ Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

The touch pad 135 operates in correlation with the display portion 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have a size equal to or smaller than that of the display unit 151.

In addition, the control unit 180 of the mobile terminal according to the present invention, which can include at least one of the above-described components, outputs an image input to the camera 121 to the display unit 151. [

The image output to the display unit 151 includes at least one subject, and in this specification, the subject may be referred to as an 'object'.

On the other hand, if at least one of the plurality of objects output on the display unit 151 is selected by the user, the controller 180 controls the focus based on the object. That is, the controller 180 controls the camera 121 so that the camera 121 is focused on the selected object.

In addition, the detection unit 181 detects the movement of the object so that the focus of the selected object can be continuously adjusted, and when the motion of the object is detected by the detection unit 181, The camera 121 can be controlled.

When the magnification control command is input to the image output to the display unit 151, the controller 180 changes the magnification of the image around the selected object while maintaining the focus on the selected object.

As described above, the mobile terminal and the control method thereof according to the present invention can continuously output the focused image to the display unit while maintaining the focus on the selected object and adjusting the magnification.

In addition, since the mobile terminal and the control method thereof according to the present invention adjusts the magnification around the object selected by the user, it can output the image of the part of interest to the user in preference to other parts.

Hereinafter, a method of controlling an image input through a camera in a mobile terminal related to the present invention will be described with reference to FIGS. 3, 4, 5, and 6. FIG.

FIG. 3 is a flowchart illustrating a method of controlling a mobile terminal according to an embodiment disclosed herein. FIGS. 4, 5, and 6 illustrate a method of controlling a mobile terminal according to an embodiment disclosed herein Fig.

First, a control method according to the present invention outputs an image input through a camera 121 (see FIG. 1) to a display unit 151.

The image output on the display unit 151 may include a plurality of objects (subjects). The object may be, for example, a person, an animal, a plant, a building, or the like, and may be all objects included in an image input through a camera.

Next, at least one of the objects included in the image output on the display unit 151 is selected from the user (S200).

Here, in order to select the object, a touch input to the display unit 151 may be used, or a user input unit 130 such as a hot key provided in the terminal may be used.

If at least one object is selected from the user at step S200, the controller 180 adjusts the focus based on the selected object at step S300.

That is, the controller 180 adjusts the focus of the camera 121 so that the focus of the object selected by the user is adjusted.

4, when the object 210 is selected from the image 200 output on the display unit 151, the control unit 180 controls the camera 121 (not shown) , So that the focus 400 is aligned with the object 210.

In addition, the detection unit 181 detects the movement of the selected object 210 in case the selected object 210 moves to another position and the focus should be changed.

Accordingly, when the movement of the object 210 is detected by the detection unit 181, the control unit 180 controls the camera 121 so that the focus can be adjusted again.

5, when the object 210 is selected from the user in the image output to the display unit 151, the camera 121 displays the focus 400 on the basis of the selected object 210. [ And when the object 210 is detected to be moved from the position 'a' to the position 'b' by the detection unit 181, the focus is readjusted. Similarly, when the object 210 continuously moves from the point 'b' to the point 'c' and the object from the point 'c' to the point 'd', the camera 121 corresponds to the object 210 ) To adjust the focus. As described above, the control unit 180 allows the focus of the selected object 210 to be continuously maintained by the user through the control of the detection unit 181 and the camera 121.

Next, in response to the magnification control command, the controller 180 changes the magnification of the image output to the display unit 151 around the object 210 while maintaining the focus on the object 210 (S400) .

The magnification control command is an instruction to enlarge or reduce an image output on the display unit 151. The magnification control command may be a touch input to the display unit 151 or a touch input to the other user input unit 130 And can be generated through user input.

For example, as shown in FIG. 4, when any one of a plurality of icons 310, 320, and 330 corresponding to different magnifications outputted to the display unit 151 is selected, And adjusts the magnification of the image output to the display unit 151 at a magnification corresponding to the magnification 320 of the image.

In this case, the control unit 180 controls the magnification of the object 210 selected by the user so that the object 210 can be output on the display unit 151 even when the image is enlarged or reduced. do.

For example, as shown in FIG. 6, when a touch corresponding to a magnification control command for enlarging an image by '2 times' is applied from the user, the controller 180 displays the image .

When the object 210 is positioned at the edge of the display unit 151 and the command to enlarge the image is input, generally, the image is enlarged around the entire image output to the display unit 151 Therefore, the object 210 selected by the user may not be output to the display unit 151 in response to the enlargement, but may be output only partially.

However, when enlarging the image 200 in response to the magnification control command, the controller 180 adjusts the magnification around the selected object 210, so that even if the image 200 is enlarged, 210 may always be included on the display unit 151. [

Accordingly, even when the object 210 is located on the right side of the display unit 151, the control unit 180 enlarges the image 200 in response to the magnification control command, The position of the image can be adjusted so as to be output on the display unit 151.

In addition, the controller 180 may automatically adjust the parameters of the image 200a whose magnification is adjusted in accordance with the magnification adjustment command.

Here, the parameters of the image are factors that can control the color, image quality, etc. of the image such as color, white balance, exposure degree, brightness, saturation, contrast, and RGB of the image.

The control unit 180 compares the parameter of the enlarged image 200a with a predetermined reference and adjusts the parameter of the image 200a to correspond to a predetermined reference when the parameter is different from the preset reference, Can be improved.

Here, the predetermined reference to the parameter of the image can be predetermined by the user, and the control unit 180 can automatically control the optimum condition.

6, the magnified images 200a and 210a are output to the display unit 151 with the optimal magnified images 200b and 210b by controlling parameters of the images by the controller 180 .

As described above, the mobile terminal and the control method thereof according to the present invention can provide the user with an image without wobbling by enlarging the image while keeping focus on the object selected by the user.

In addition, the mobile terminal and its control method according to the present invention can provide an optimal image to a user by automatically adjusting the color and image quality of the enlarged image.

Meanwhile, as described above, the magnification control command for the image can be generated through the touch of the user.

Hereinafter, a method for receiving a magnification control command in the mobile terminal according to the present invention will be described with reference to FIG.

7 is a conceptual diagram for explaining a method of selecting a magnification in a mobile terminal according to an embodiment disclosed herein.

First, the controller 180 of the mobile terminal according to an exemplary embodiment of the present invention may display icons corresponding to at least one magnification control command in one area on the display unit 151. FIG. The icon displayed on the display unit 151 may be displayed according to a user's selection.

Also, when any one of the icons is selected, the controller 180 may enlarge or reduce the image around the object selected by the magnification corresponding to the selected icon.

That is, in the present invention, the magnification of the image can be quickly adjusted through the selection of the icon.

As shown in FIG. 7A, when one of the plurality of icons 310, 320, and 330 is displayed on the display unit 151, Or dragged to the selected object 210.

For example, when the icon 320 corresponding to 'double' is dragged by the user to the object 210 selected by the user, the control unit 180 'doubles' the image including the selected object 210, Can be enlarged.

In another embodiment, when any one of the icons corresponding to the magnification is dragged to an arbitrary portion on the display unit 151, the image can be enlarged around the dragged portion.

7B, when an object included in the image output to the display unit 151 is displayed on any one of the icons 310, 320, and 330 corresponding to the magnification, When dragged, the control unit 180 may enlarge or reduce the image at a magnification corresponding to the icon 320 located at the end point of the drag.

In this case, the controller 180 may enlarge or reduce the image around the area where the drag input of the user is started.

As described above, the mobile terminal and its control method according to the present invention can intuitively adjust the magnification of an image using an icon and a touch input.

In addition, the mobile terminal according to the present invention can adjust magnification that can be enlarged or reduced according to a region where the object selected by the user is located on the display unit 151.

Hereinafter, with reference to FIG. 8, a method of setting different ranges in which an image can be enlarged or reduced according to the position of an object will be described.

 8 is a conceptual diagram for explaining a method of adjusting a magnification in a mobile terminal according to an embodiment disclosed herein.

The controller 180 of the mobile terminal according to the exemplary embodiment of the present invention may set the range in which the image can be enlarged or reduced depending on the position of the object selected by the user on the display unit 151.

That is, the control unit 180 can calculate the magnification up to the range that can be output on the display unit 151 without excluding the object selected by the user.

For example, as shown in FIG. 8A, when the object 210 selected by the user is biased to the left on the display unit 151 and enlarged by enlarging the magnification of the image, The selected object 210 may be output with the object 151 cut off. In this case, the user can not receive the entire screen for the object 210 of interest.

Accordingly, the controller 180 calculates a magnification that can be maximally enlarged according to the output position of the selected object 210, and outputs the magnification to the icons 310, 320, and 330, respectively.

For example, as shown in FIG. 8A, when the object is shifted to the left, the maximum magnification range may be 1.8 times. 8 (b), when the object 210 is located at the center, the range that can be maximally expanded can be '3' times, and as shown in FIG. 8 (c) Likewise, when the object 210 is located at a small center, the maximum magnification range may be '5'.

In this way, the control unit 180 provides the user with information that allows the image to be maximally enlarged, so that the user can cause the display unit 151 to output the object 210 as a whole. In addition, it is also possible that the image is enlarged or reduced beyond the range calculated by the controller 180 according to the user's selection.

Hereinafter, a method of outputting a whole image input through a camera, together with an image whose magnification of the selected object is adjusted, will be described with reference to FIG.

9 is a conceptual diagram illustrating a method of outputting an image input through a camera in a mobile terminal according to an embodiment disclosed herein.

As described above, the controller 180 of the mobile terminal according to the embodiment of the present invention can adjust the magnification of the image around the object 210 selected by the user in response to the magnification control command. Further, the controller 180 may control the image so that the selected object 210 is disposed at the center of the display unit 151.

In addition, the control unit 180 may output the entire image input through the camera 121, in addition to the magnified image 200, through a separate preview window 250.

For example, as shown in FIG. 9, in response to the magnification control command, an image may be enlarged around an object 210, and the object 210 may be disposed at the center of the display unit 151. The control unit 180 generates a separate output window 250 and outputs the entire image input through the camera 121 to the output window 250.

Accordingly, the user can easily grasp where the object 210 is located in the entire image through the output window 250. [

In addition, the controller 180 may change the display in the output window 250 according to the movement of the object 210.

Thus, even if the focus is changed around the object 210 and the object is subsequently centered on the display portion 151, the user can grasp the relative position of the object 210 through the output window 250 have.

In addition, the controller of the mobile terminal according to an embodiment of the present invention may output images at various ratios in response to the magnification control command for the selected object.

10 is a conceptual diagram illustrating a method of outputting an image related to a selected object in a mobile terminal according to an embodiment disclosed herein.

For example, when a magnification adjustment command is input to the image 200 output from the display unit 151, the control unit 180 outputs the selection window 270, The enlargement ratio can be selected from the user.

10, when the icon 320 corresponding to the magnification control command is selected by the user, the controller 180 outputs a selection window 270 for selecting the ratio of the enlarged image. The ratio of the enlarged image may be variously set by the user or the control unit 180, and the user may directly input the ratio through the selection window 270 as needed.

On the other hand, if an item corresponding to the ratio of 4: 3 is selected by the user in the selection window 270, the control unit 180 displays the image on the selected object 210 as 4: 3 While maintaining the ratio.

If the user selects an item corresponding to the ratio of 16: 9 in the selection window 270, the controller 180 controls the image to be displayed in a 16: 9 ratio around the selected object 210 .

As shown in FIG. 10, when the image enlarged at the ratio of 4: 3 is compared with the image enlarged at the ratio of 16: 9, it can be seen that the ranges of the images output from the two images are different from each other. For example, an image enlarged at a ratio of 16: 9 rather than an image enlarged at a 4: 3 ratio has a shorter width but a longer length, so that a vertical portion can be further output from the entire image. Conversely, an image enlarged at a 4: 3 ratio can output a more lateral portion than an image enlarged at a ratio of 16: 9 in the entire image.

Therefore, as described above, the mobile terminal and its control method according to the present invention can output images at various ratios, and the user can receive images of the interested parts by selecting various ratios.

In addition, the mobile terminal and its control method according to an embodiment of the present invention detect motion of an object selected by a user and continuously adjust the focus around the object corresponding to the detected motion, Can be photographed.

In addition, the mobile terminal and the control method thereof according to an embodiment of the present invention display icons corresponding to different magnifications, so that the magnification of an image can be immediately adjusted according to a user's selection.

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

Claims (8)

camera;
A touch screen for outputting an image input through the camera; And
When the at least one of the plurality of objects included in the image is selected through the touch screen, the camera is controlled such that the focus is adjusted around the selected object, and when the magnification control command is received, And changing a magnification of the image according to the magnification control command,
Wherein,
And outputs the magnified image to the touch screen so that the selected object is displayed at the center of the touch screen. The apparatus of claim 1,
When motion of the selected object is detected,
And controls the camera so that the focus of the selected object is readjusted. The apparatus of claim 1, wherein the control unit
Adjusting a parameter of an image whose magnification is changed in accordance with the magnification control command to a preset value,
Wherein the parameter is at least one of color, white balance, brightness, saturation, contrast, and exposure. The method according to claim 1,
A plurality of icons corresponding to different magnifications are displayed on the touch screen,
The magnification of the image is changed to a magnification corresponding to any of the icons when any one of the plurality of icons is dragged by the user to the selected object or when the selected object is dragged to any one of the icons . 5. The method of claim 4,
Wherein the magnification control range of the selected object is changed according to a position where the selected object is output on the touch screen. 6. The mobile terminal of claim 5, wherein the plurality of icons include different magnification information depending on a position at which the selected object is output on the touch screen. 5. The method of claim 4,
Wherein the magnification control command corresponds to one of the icons being dragged to the selected object. The apparatus of claim 1,
And enlarges an image input through the camera around an area including the selected object if the magnification control command corresponds to an enlargement command.

Images