KR101892007B1 - Mobile terminal and control method thereof - Google Patents

Abstract

The present invention relates to a mobile terminal capable of acquiring an image from the outside and a control method thereof. A mobile terminal according to an embodiment of the present invention includes: a main body; A camera unit for acquiring a video image; A sensing unit for sensing at least one of movement of the main body and movement of the user; A user input unit for receiving a control command for acquiring a video image of the camera unit; And controlling the camera unit to acquire a first video image when the detected motion is a preset motion, and when the control command received after acquiring the first video image is a control command for acquiring a video image of the camera unit A control unit for controlling the camera unit to acquire a second video image; And a merge unit for merging at least some of the first video frames included in the first video image into second video frames included in the second video image to generate a third video image.

Description

[0001] MOBILE TERMINAL AND CONTROL METHOD THEREOF [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal, and more particularly, to a mobile terminal capable of image acquisition from the outside and a control method thereof.

The terminal is movable And may be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

As the functions of the terminal are diversified, the terminal is implemented in the form of a multimedia device having a combination of functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, have. Further, in order to support and enhance the function of the terminal, it may be considered to improve the structural and software parts of the terminal.

With this improvement, the terminal can acquire images from the outside using the camera unit. However, when the user wants to operate the camera unit in the sleep mode, the sleep mode of the terminal is released, and a few steps may be performed, which may take a few seconds. Accordingly, there is a problem that it is difficult for the user to instantaneously acquire an image.

An object of the present invention is to provide a mobile terminal capable of acquiring an image from the outside even before a user inputs a control command for operating the camera unit and a control method thereof.

A mobile terminal according to an embodiment of the present invention includes: a main body; A camera unit for acquiring a video image; A sensing unit for sensing at least one of movement of the main body and movement of the user; A user input unit for receiving a control command for acquiring a video image of the camera unit; And controlling the camera unit to acquire a first video image when the detected motion is a preset motion, and when the control command received after acquiring the first video image is a control command for acquiring a video image of the camera unit A control unit for controlling the camera unit to acquire a second video image; And a merge unit for merging at least some of the first video frames included in the first video image into second video frames included in the second video image to generate a third video image.

In an embodiment, the mobile terminal includes: a buffer memory for storing the first video image; And a record memory for storing the second video image.

In an exemplary embodiment, the mobile terminal may further include a display unit, and the controller may control the camera unit to acquire the first video image for a predetermined time when the detected motion is a predetermined motion, After the predetermined time has elapsed, the display unit can be controlled to display a pop-up window for selecting whether to acquire the second video image.

In one embodiment of the present invention, the control unit selectively controls the camera unit to acquire the second video image based on whether the control command selected through the pop-up window is a control command for acquiring the second video image Or delete the first video image from the buffer memory.

In one embodiment, the merging unit may be configured to display preview images corresponding to at least a portion of the first video frames included in the first video image, when the camera unit finishes acquiring the second video image The display unit can be controlled.

In an embodiment, the merger may include grouping the first video frames into a plurality of groups based on time information obtained by each of the first video frames, Select key video frames, and control the display unit to display representative preview images corresponding to each of the representative video frames.

In one embodiment of the present invention, when at least one of the displayed representative preview images is selected, the merge unit detects a group of the selected representative preview image, and detects a group of the first video frames included in the detected group 1 < / RTI > video frames and the second video frames to generate the third video image.

The control unit may delete the first video image from the buffer memory while storing the third video image in the record memory when the third video image is generated, It can be deleted from the record memory.

In one embodiment, if the available memory capacity of the buffer memory is less than or equal to a threshold value, each of the first video frames stores at least a portion of the first video frames in the buffer memory Can be deleted.

In an embodiment, the sensing unit may include at least one of a geomagnetic sensor, a gyro sensor, and an acceleration sensor for sensing movement of the main body.

An embodiment of the present invention relates to a control method of a mobile terminal including a main body and a camera unit for acquiring a video image. The control method of the mobile terminal may include detecting at least one of movement of the main body and movement of the user; Controlling the camera unit to acquire a first video image when the detected motion is a preset motion; Receiving a control command for acquiring a video image of the camera unit through a user input unit after acquiring the first video image; Controlling the camera unit to acquire a second video image when the received control command is a control command for acquiring a video image of the camera unit; And merging at least a portion of the first video frames included in the first video image with the second video frames included in the second video image to generate a third video image.

In one embodiment of the present invention, the control method of the mobile terminal comprises: storing the first video image in a buffer memory; And storing the second video image in a record memory.

In one embodiment, the step of controlling the camera unit to acquire a first video image when the sensed motion is a preset motion may include: when the sensed motion is a preset motion, Wherein the step of receiving the control command for acquiring the video image of the camera unit through the user input unit after acquiring the first video image comprises the steps of acquiring the second video image And controlling the display unit to display a pop-up window for receiving a selection of whether or not to display the pop-up window.

The control method of the mobile terminal may further include determining whether the control command selected through the pop-up window is a control command for acquiring the second video image; And selectively controlling the camera unit to acquire the second video image or deleting the first video image in the buffer memory based on the determination result.

According to the present invention, when the body or the user's movement detected by the sensing unit is a preset movement, the terminal can acquire images from the outside even before the user inputs a control command for operating the camera unit. That is, the terminal can acquire a momentary image that the user can miss. As a result, the user can conveniently acquire an image corresponding to the photographing intention. Consequently, the convenience of the user can be improved.

1 is a block diagram illustrating a mobile terminal according to the present invention.
2A and 2B are perspective views showing an appearance of a mobile terminal according to the present invention.
3 is a flowchart for explaining an embodiment of a mobile terminal according to the present invention.
4 to 12 are conceptual diagrams showing an operation example of the mobile terminal according to FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the technical idea of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly explain the present invention, parts not related to the description are omitted, and like parts are denoted by similar reference numerals throughout the specification.

The mobile terminal described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a navigator, have. However, it should be understood 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 it is applicable only to a mobile terminal. It will be easy to see.

1 is a block diagram illustrating a mobile terminal 100 according to the present invention.

1, a mobile terminal 100 includes a wireless communication unit 110, an audio / video (A / V) input unit 120 (hereinafter referred to as a user tracking unit), a user input unit 130, An input unit 140, an output unit 150, a memory 160, an interface unit 170, a control unit 180, and a power supply unit 190. The components shown in Fig. 1 are not essential, so that a mobile terminal having more or fewer components can be implemented.

Hereinafter, the components 110 to 190 of the mobile terminal 100 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 distance communication module 114, and a location information module 115.

The broadcast receiving module 111 receives broadcast signals and broadcast related information from an external broadcast management server through a broadcast channel. Here, the broadcast-related information means information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast-related information can also be provided through a mobile communication network. In this case, the broadcast-related information may be received by the mobile communication module 112. The broadcast signal and the 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. Such wireless signals may include various types of data depending on a voice call signal, a video call signal, a text message, or a multimedia message transmission / reception.

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

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

The position information module 115 is a module for acquiring the position of the mobile terminal 100, and a representative example thereof is a Global Position System (GPS) module.

1, the user tracking unit 120 receives an audio signal and a video signal and tracks a user using the received signal. The user tracking unit 120 includes a camera 121, a microphone 122, A sensor 123, and the like. The camera 121 processes image frames such as still images and moving images obtained by the image sensor in the video communication mode or the photographing mode. The image frame processed by the camera 121 can be displayed on the display unit 151. [ The image frame may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ More than two cameras 121 may be provided depending on the use environment.

The microphone 122 processes the sound signal input from the outside in the communication mode, the recording mode, the voice selection mode, and the like as electrical voice data. The voice data processed by the microphone 122 in the communication mode can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 and output. The microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated when an external sound signal is input.

The user input unit 130 generates input data for controlling the operation of the mobile terminal 100 by a user. The user input unit 130 may include a key pad, a dome switch, a touch pad (static pressure and static electricity), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as presence or absence of a user, the open / close state of the mobile terminal 100, position, orientation, acceleration, deceleration, And generates a sensing signal. For example, when the mobile terminal 100 is in the form of a slide phone, the sensing unit 140 may detect whether the slide phone is opened or closed. The sensing unit 140 may 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 sensing unit 140 may include a proximity sensor 141. The sensing unit 140 may include a touch sensor (not shown) for sensing a touch operation with respect to the display unit 151.

The touch sensor may have the form of a touch film, a touch sheet, a touch pad, or the like. The touch sensor may be configured to convert a pressure applied to a specific portion of the display portion 151 or a change in capacitance generated at a specific portion of the display portion 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 touch pressure.

When the touch sensor and the display unit 151 have a mutual layer structure, the display unit 151 can be used as an input device in addition to the output device. The display unit 151 may be referred to as a 'touch screen'.

If there is a touch input via the touch screen, corresponding signals are sent to a touch controller (not shown). The touch controller processes the signals transmitted from the touch sensor, and then transmits data corresponding to the processed signals to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched.

In the case where the touch screen is electrostatic, it can be configured to detect the proximity of the sensing object by a change of the electric field along the proximity of the sensing target. Such a touch screen may be classified as proximity sensor 141. [

The proximity sensor 141 refers to a sensor that detects the presence or absence of an object to be sensed without mechanical contact using an electromagnetic force or infrared rays. The proximity sensor 141 has a longer life than the contact type sensor and its utilization is also high. Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

Hereinafter, for convenience of explanation, a proximity action is referred to as " proximity touch " while an object to be sensed does not touch the touch screen, and an action of touching the sensing object on the touch screen is called & touch ".

The proximity sensor 141 detects the presence or absence of a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, The information corresponding to the presence / absence of proximity touch and the proximity touch pattern can be output to the touch screen.

The output unit 150 generates an output related to visual, auditory, tactile, and the like. The output unit 150 may include a display unit 151, an audio output module 153, an alarm unit 154, and a haptic module 155.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal 100 operates in the call mode, the display unit 151 displays a UI (User Interface) or a GUI (Graphic User Interface) related to the call. When the mobile terminal 100 operates in the video communication mode or the photographing mode, the display unit 151 displays the photographed image, the received image, the UI, the GUI, and the like.

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.

At least one display (or display element) included in the display unit 151 may be configured to be transparent or light transmissive so that the display can see the outside through it. This can be referred to as a transparent display. A typical example of such a transparent display is TOLED (Transparent OLED). The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 in 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 each other or positioned integrally with one another, and may be located on different surfaces.

The sound output module 153 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 selection mode, a broadcast reception mode, The sound output module 153 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The sound output module 153 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 154 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events generated in the mobile terminal 100 include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 154 may output a signal for informing occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The display unit 151 and the audio output module 153 may be classified as a part of the alarm unit 154 because the video signal or the audio signal can be output through the display unit 151 or the audio output module 153. [

The haptic module 155 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 155 is vibration. The intensity, pattern, and the like of the vibration generated by the tactile module 155 are controllable. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 155 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 a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, Various effects can be generated such as the effect of heat generation and the effect of reproducing the cold sensation using the heat absorbing or heatable element.

The haptic module 155 can be configured to not only transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sense of the finger or arm. At least two haptic modules 155 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 and output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data related to vibrations and sounds of various patterns that are output upon touch input on the touch screen.

The memory 160 may be a flash memory, a hard disk, a multimedia card micro type, a card type memory (e.g., SD or XD memory), a random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM) And may include at least one storage medium. The mobile terminal 100 may operate in association with a web storage that performs storage functions 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, the interface unit 170 may include 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, Input / output ports, video I / O ports, earphone ports, and the like.

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 Universal Subscriber Identity Module (USIM)). A device equipped with an identification module (hereinafter referred to as "identification device") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

The interface unit 170 may be a path through which the power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle or various command signals input from the cradle by the user, (Not shown). The various command signals or power supplied from the cradle may also act as a signal for recognizing that the mobile terminal 100 is correctly mounted in the cradle.

The controller 180 controls the overall operation of the mobile terminal 100. For example, control and processing related to voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [ The control unit 180 may perform pattern selection processing for selecting handwriting input and drawing input on the touch screen as characters and images, respectively.

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

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

According to a hardware implementation, the embodiments described herein may be applied to various types of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays Microprocessors, microprocessors, and other electronic units for performing other functions, as will be appreciated by those skilled in the art. 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. Software code may be implemented in a software application written in a suitable programming language. Such software codes may be stored in the memory 160 and executed by the control unit 180. [

Hereinafter, a method of processing user input to the mobile terminal 100 will be described.

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100, and may include a plurality of operation units. The operating units may also be referred to as manipulating portions and may be employed in any manner as long as they are operated in a tactile manner by the user's tactile sense.

Various kinds of time information can be displayed on the display unit 151. [ Such visual information can be displayed in the form of letters, numbers, symbols, graphics, icons, and the like, and can be formed as a three-dimensional stereoscopic image. At least one of a character, a number, a symbol, a graphic, and an icon may be displayed in a predetermined arrangement for inputting time information, thereby being implemented as a keypad. Such a keypad may be referred to as a so-called " soft key ".

The display unit 151 may operate as an entire area or may be divided into a plurality of areas and operated. In the latter case, the plurality of areas can be configured to operate in association with one another. For example, an output window and an input window may be displayed on the upper and lower portions of the display unit 151, respectively. The output window and the input window are areas allocated for outputting or inputting information, respectively. In the input window, a soft key with a number for inputting a telephone number may be output. When the soft key is touched, the number corresponding to the touched soft key is displayed in the output window. When the operating unit is operated, a call connection to the telephone number displayed in the output window may be attempted, or the text displayed in the output window may be entered into the application.

The display unit 151 or the touch pad may be configured to detect touch scrolling. The user can move the cursor or the pointer positioned on the displayed object, for example, the icon, on the display unit 151 by scrolling the display unit 151 or the touch pad. Further, when the finger is moved on the display unit 151 or the touch pad, the path along which the finger moves may be visually displayed on the display unit 151. [ This will be useful for editing the image displayed on the display unit 151. [

One function of the mobile terminal 100 may be executed in response to a case where the display unit 151 and the touch pad are touched together within a predetermined time range. In the case of being touched together, there may be a case where the user clamps the main body of the mobile terminal 100 using the thumb and index finger. At this time, one function of the mobile terminal 100 to be executed may be activation or deactivation for the display unit 151 or the touch pad, for example.

2A and 2B are perspective views showing the appearance of the mobile terminal 100 related to the present invention.

FIG. 2A shows a front side and one side of the mobile terminal 100, and FIG. 2B shows a rear side and the other side of the mobile terminal 100. FIG.

Referring to FIG. 2A, the mobile terminal 100 includes a bar-shaped terminal body. However, the mobile terminal 100 is not limited thereto, and may be realized in various forms such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are movably coupled to each other.

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

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

The display unit 151, the sound output unit 152, the camera 121, the user input unit 130 (see FIG. 1), the microphone 122, the interface 170, can do.

The display unit 151 occupies a main portion of the front case 101. [ The audio output unit 152 and the camera 121 are located in a region adjacent to one end of the display unit 151 and the first user input unit 131 and the microphone 122 are located in a region adjacent to the other end. The second user input unit 132 and the interface 170 may be located on the sides of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100. [ The user input unit 130 may include a plurality of operation units 131 and 132.

The first or second operating units 131 and 132 can receive various commands. For example, the first operation unit 131 can receive commands such as start, end, scroll, and the like. The second operation unit 132 can receive commands such as adjusting the size of the sound output from the sound output unit 152, switching to the touch selection mode of the display unit 151, and the like.

Referring to FIG. 2B, a rear camera 121 'may be additionally mounted on the rear surface of the terminal body, that is, the rear case 102. The rear camera 121 'has a photographing direction opposite to that of the front camera 121 (see FIG. 2A), and may be configured to have pixels different from those of the front camera 121.

For example, the front camera 121 may be configured to have a low pixel, and the rear camera 121 'may be configured to have a high pixel. Accordingly, when the front camera 121 is used during a video call, when the user's face is photographed and the photographed image is transmitted to the other party in real time, the size of the transmitted data can be reduced. On the other hand, the rear camera 121 'can be used for the purpose of storing a high-quality image.

Meanwhile, the cameras 121 and 121 'may be installed in the terminal body so as to be rotated or popped up.

The flash 123 and the mirror 124 may be further positioned adjacent to the rear camera 121 '. The flash 123 emits light toward the subject when the user photographs the subject with the rear camera 121 '. The mirror 124 illuminates the user's face when the user photographs himself (self-photographing) using the rear camera 121 '.

A rear sound output unit 152 'may be additionally disposed on the rear surface of the terminal body. The rear sound output unit 152 'may perform a stereo function together with the front sound output unit 152 (see FIG. 2A), and may perform a speakerphone function during a call.

In addition to the antenna for communication, an antenna 116 for receiving broadcast signals may be additionally provided on the side surface of the terminal body. The antenna 116 constituting a part of the broadcast receiving module 111 (see FIG. 1) can be installed to be able to be drawn out from the terminal body.

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

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may be of a light transmission type like the display unit 151 (see FIG. 2A). Further, a back display unit for outputting time information can be additionally mounted on the touch pad 135. [ At this time, information output from both sides of the front display unit 151 and the rear display unit can be controlled by the touch pad 135. [

The touch pad 135 operates in correlation with the display unit 151. [ The touch pad 135 may be positioned 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.

On the other hand, the mobile terminal 100 can acquire an image from the outside using the camera unit 121. However, when the user desires to operate the camera unit 121 in the sleep mode, the sleep mode of the mobile terminal 100 is released, and a few steps can be taken and several seconds may be required. Accordingly, there is a problem that it is difficult for the user to instantaneously acquire an image.

Hereinafter, the mobile terminal 100 capable of acquiring images from the outside even before a user inputs a control command for operating the camera unit 121 and a control method thereof will be described with reference to the accompanying drawings do.

FIG. 3 is a flowchart for explaining an embodiment of the mobile terminal 100 (see FIG. 1) according to the present invention. The mobile terminal 100 includes a main body, a camera unit 121 (see FIG. 1), a sensing unit 140 (see FIG. 1), a user input unit 130 (see FIG. 1), a control unit 180 182, Fig. 1).

Referring to FIG. 3, at step S110, at least one of movement of the main body and movement of the user is detected.

Specifically, the sensing unit 140 may include a motion recognition sensor (not shown) for sensing the movement of the main body. A motion recognition sensor (not shown) is mounted inside the mobile terminal 100 and can recognize the movement and position of the main body. The motion recognition sensor (not shown) may include at least one of a terrestrial magnetism sensor, a gyro sensor, and an acceleration sensor.

An operation recognition sensor (not shown) can detect whether the main body rotates. That is, the motion recognition sensor (not shown) detects the displacement due to the rotation of the main body, that is, the rotation direction and the rotation angle, and generates an electric signal by using the rotation direction and the rotation angle.

Meanwhile, the sensing unit 140 may include a camera unit 121. The camera unit 121 is mounted on the outside of the mobile terminal 100 and can recognize the motion of the user. The camera unit 121 may detect at least one of the face of the user and the operation of the user, and may generate an electric signal using the detected face.

Next, when the detected motion is the preset motion, the process of controlling the camera unit 121 to acquire the first video image (S120) proceeds.

Specifically, the controller 180 may compare a pattern of motion detected by the sensing unit 140 (for example, movement of the main body or movement of the user) with a predetermined pattern related to acquisition of the first video image. As a result of the comparison, if the detected motion pattern corresponds to the predetermined pattern, the control unit 180 can generate a control command related to the acquisition of the first video image. Accordingly, the camera unit 121 can acquire the first video image from the outside. The acquired first video image may be stored in the buffer memory 161 (see FIG. 1).

After the first video image is acquired, a control command for acquiring a video image of the camera unit 121 is input through the user input unit 130 (S130), and the received control command is transmitted to the camera unit 121 In the case of the control command for acquiring the video image, step S140 is performed in which the camera unit 121 is controlled to acquire the second video image.

Specifically, the user input unit 130 generates input data for controlling the operation of the mobile terminal 100 by the user. The user input unit 130 may include a key pad, a dome switch, a jog wheel, a jog switch, and the like. Also, the user input unit 130 may include a touch pad capable of touch input. The touch pad may be mounted on the front surface of the display unit 151.

The user may input a control command for acquiring a video image of the camera unit 121 through the user input unit 130. [ Accordingly, the camera unit 121 can acquire a second video image different from the first video image. The acquired second video image may be stored in the record memory 162 (see FIG. 1).

For example, the control unit 180 acquires the first video image using the camera unit 121 for a preset time, and then displays a pop-up window for selecting whether to acquire the second video image Can be displayed. In this case, if the control command selected through the pop-up window is a control command for acquiring the second video image, the control unit 180 can acquire the second video image using the camera unit 121. [

Next, in step S150, a third video image is generated by merging at least some of the first video frames included in the first video image with the second video frames included in the second video image.

More specifically, when the camera unit 121 finishes acquiring the second video image, the merge unit 182 displays the preview images corresponding to at least a part of the first video frames included in the first video image The display unit 151 can be controlled.

More specifically, the merge unit 182 groups the first video frames into a plurality of groups based on the obtained time information of each of the first video frames, and for each of the plurality of groups, You can select key video frames. Thereafter, the display unit 151 may be controlled to display representative preview images corresponding to the selected representative video frames.

Then, when at least one of the representative preview images displayed by the user is selected, the merge unit 182 detects a group of the selected representative preview image, and detects a group of the first video included in the detected one of the first video frames The frames and the second video frames may be merged to produce a third video image.

Although not shown, when a third video image is generated, the control unit 180 deletes the first video image from the buffer memory 161 while storing the third video image in the record memory 162, The image can be deleted from the record memory 162.

As described above, according to the present invention, when the body detected by the sensing unit 140 or the movement of the user is a predetermined movement, the mobile terminal 100 displays a control command for operating the camera unit 121 Images can be acquired from the outside even before input. That is, the mobile terminal 100 can acquire a momentary image that the user can miss. As a result, the user can conveniently acquire an image corresponding to the photographing intention. Consequently, the convenience of the user can be improved.

FIG. 4 is a conceptual diagram showing an operation example of the mobile terminal 200 according to FIG. The mobile terminal 200 includes a main body, a camera unit 121 (see FIG. 1), a sensing unit 140 (see FIG. 1), a user input unit 130 (see FIG. 1), a control unit 180 182, Fig. 1). Here, the user input unit 130 may include a display unit 251 configured to allow touch input.

Referring to FIG. 4, the sensing unit 140 may sense at least one of a motion of a main body and a movement of a user. The sensing unit 140 may sense movement of the main body using an operation recognition sensor (not shown), or may detect movement of the user using the camera unit 121. [

Next, the control unit 180 may compare a motion pattern detected by the sensing unit 140 with a predetermined pattern related to acquisition of the first video image. Here, the pattern associated with the acquisition of the first video image may include a pattern preceded by a user inputting a control command for acquiring the video image through the user input 130. [

The pattern associated with the acquisition of the first video image may be a pattern associated with movement of the body, e.g., a pattern of movement such that the body is in a horizontal landscape position on the ground, a pattern in which the body is in a portrait orientation position, and the like.

The pattern associated with acquisition of the first video image may also include a pattern associated with the user ' s motion, such as a pattern in which the user approaches the user input 130 to enter a control command associated with acquisition of the first video image, . ≪ / RTI >

In more detail, when the main body is set to be a horizontal landscape landscape position in a pattern related to the acquisition of the first video image, as shown in the drawing, when the main body is in the landscape- Lt; / RTI > can be generated.

 Then, the camera unit 121 can acquire the first video image from the outside based on the control command. The acquired first video image may be stored in the buffer memory 161 (see FIG. 1). The buffer memory 161 is a first-in first-out (FIFO) memory, and can store data temporarily.

Although not shown, when the available memory capacity of the buffer memory 161 is equal to or less than the threshold value, the control unit 180 determines whether or not each of the first video frames included in the first video image, At least some of the frames may be deleted from the buffer memory 161. [

Meanwhile, as shown, the display unit 251 can display the first video image. In addition, the display unit 251 may include an indicator (e.g., a first video image) indicating that the first video image is a video image obtained before the user inputs a control command for acquiring the video image through the user input unit 130 (An indicator indicating that this is a preliminary image) 253 can be displayed.

5 and 6 are conceptual diagrams showing an operation example of the mobile terminal 200 according to FIG. The mobile terminal 200 includes a main body, a camera unit 121 (see FIG. 1), a sensing unit 140 (see FIG. 1), a user input unit 130 (see FIG. 1), a control unit 180 182, Fig. 1). Here, the user input unit 130 may include a display unit 251 configured to allow touch input.

Referring to FIGS. 5 and 6, the camera unit 121 may obtain a first video image from the outside based on a control command, as shown in FIG. The display unit 251 displays an indicator indicating that the first video image is a video image obtained before the user inputs a control command for acquiring the video image through the user input unit 130. For example, An indicator indicating that the image is an image) 253 can be displayed.

When a control command for acquiring a video image of the camera unit 121 is input through the user input unit 130, the camera unit 121 may acquire a second video image from the outside based on the control command.

5, the user input unit 130 receiving the control command for acquiring the video image of the camera unit 121 may include a photographing button 252. [ The photographing button 252 may be displayed on the display unit 251 or may correspond to a separate hard key. The control unit 180 controls the camera unit 121 to acquire the second video image based on the touch input to the shooting button 252 displayed on the display unit 251, Can be controlled.

6, the controller 180 controls the camera unit 121 to acquire the first video image for a preset time, and determines whether to acquire the second video image after a predetermined time has elapsed A popup window 254 for selecting and receiving can be displayed on the display unit 251. [ At this time, the control unit 180 selectively controls the camera unit 121 to acquire the second video image based on whether the control command selected through the pop-up window 254 is a control command for acquiring the second video image Can be controlled.

The second video image obtained as described above may be stored in the record memory 162 (see Fig. 1). The record memory 162 can semi-permanently store data, unlike the buffer memory 161 (see FIG. 1), which is capable of temporarily storing data.

The display unit 251 may display an indicator 253 indicating that the second video image is a video image obtained by inputting a control command for the user to acquire the video image through the user input unit 130. [

FIG. 7 is a conceptual diagram showing an operation example of the mobile terminal 200 according to FIG. The mobile terminal 200 includes a main body, a camera unit 121 (see FIG. 1), a sensing unit 140 (see FIG. 1), a user input unit 130 (see FIG. 1), a control unit 180 182, Fig. 1). Here, the user input unit 130 may include a display unit 251 configured to allow touch input.

Referring to FIG. 7, the control unit 180 controls the camera unit 121 to acquire a first video image for a preset time period. After a predetermined time elapses, the control unit 180 determines whether to acquire a second video image A pop-up window 254 for selecting the display unit 251 may be displayed on the display unit 251.

In this case, if the control command selected through the pop-up window 254 is not a control command for acquiring the second video image as shown in FIG. 5, 1 video images can be deleted. At this time, as shown in the figure, the display unit 251 may display a popup window 255 indicating that the first video image is deleted. The user may move and store the first video image in the record memory 162 (see FIG. 1) through a touch input to the pop-up window 255. [

On the other hand, although not shown, regardless of whether or not the pop-up window 254 for selecting whether to acquire the second video image is displayed or not, the display unit 251, after a predetermined time after the first video image is acquired, Up window 255 indicating that the first video image is deleted.

FIG. 8 is a conceptual diagram showing an operation example of the mobile terminal 200 according to FIG. The mobile terminal 200 includes a main body, a camera unit 121 (see FIG. 1), a sensing unit 140 (see FIG. 1), a user input unit 130 (see FIG. 1), a control unit 180 182, Fig. 1). Here, the user input unit 130 may include a display unit 251 configured to allow touch input.

Referring to FIG. 8, the camera unit 121 may acquire a second video image, as shown in FIG. 5 and FIG. When a control command for acquiring a video image of the camera unit 121 is input through the user input unit 130, the camera unit 121 may acquire a second video image from the outside based on the control command.

As shown in the figure, the display unit 251 may display an object (hereinafter, referred to as an 'end button') 252 corresponding to the function of terminating the video image acquisition. Although not shown, the end button 252 may correspond to a separate hard key.

The control unit 180 may terminate the acquisition of the second video image based on the touch input to the end button 252 displayed on the display unit 251. [ Thereafter, the second video image is stored in the record memory 162 (see FIG. 1), and the display unit 251 can display the message 256 indicating that the second video image is stored in the record memory 162.

Figs. 9 and 10 are conceptual diagrams showing operational examples of the mobile terminal 200 according to Fig. The mobile terminal 200 includes a main body, a camera unit 121 (see FIG. 1), a sensing unit 140 (see FIG. 1), a user input unit 130 (see FIG. 1), a control unit 180 182, Fig. 1). Here, the user input unit 130 may include a display unit 251 configured to allow touch input.

Referring to FIG. 9, the first video image may include first video frames. The merge unit 182 may display the preview images corresponding to at least some of the first video frames on the display unit 251. [

In particular, the merge unit 182 may group the first video frames into a plurality of groups based on the obtained time information of each of the first video frames. As shown, merge unit 182 may group the first video frames into five groups each containing 25 first video frames.

In addition, merge portion 182 may select representative video frames for each of the five groups. As shown, video frame 1, video frame 26, video frame 51, video frame 76, and video frame 101 may be selected as representative video frames.

The merge unit 182 may then display representative preview images 256a through 256e on the display unit 251 corresponding to each of the selected representative video frames.

Referring to FIG. 10, when at least one of the representative preview images 256a to 256e is selected, the merge unit 182 detects a group of the selected representative preview image, And the second video frames to generate a third video image.

For example, when the first group of video frames acquired four seconds before the second video image is acquired, the merge unit 182 determines whether the first video frame group acquired before 4 seconds, 3 seconds, 2 seconds, and 1 second The video frames and the second video frames may be merged to produce a third video image.

11 and 12 are conceptual diagrams showing an operation example of the mobile terminal 200 according to FIG. The mobile terminal 200 includes a main body, a camera unit 121 (see FIG. 1), a sensing unit 140 (see FIG. 1), a user input unit 130 (see FIG. 1), a control unit 180 182, Fig. 1). Here, the user input unit 130 may include a display unit 251 configured to allow touch input.

Referring to FIGS. 11 and 12, the camera unit 121 may obtain a second video image, as shown in FIGS. 5 and 6. FIG. Then, the control unit 180 can terminate the acquisition of the second video image based on the touch input to the end button 252 displayed on the display unit 251.

When the acquisition of the second video image is finished, the merge unit 182 can group the first video frame into a plurality of groups. In addition, merge portion 182 may select representative video frames for each of the five groups. As shown, the display unit 251 may display selected representative video frames.

As shown in FIG. 11, when a representative preview image 256e for the first video frame group acquired one second before the second video image is acquired is selected and a touch input is detected in the object corresponding to the merge function , The merge unit 182 may merge the first video frames and the second video frames acquired one second before to generate the third video image. On the other hand, the selected representative preview image 256e may be displayed in a thicker border than the other preview images 256a to 256d.

Thereafter, as shown, a preview image 257 for the third video image may be displayed on the display unit 251. [ The preview image 257 for the third video image may be displayed in a form in which the representative preview image 256e for the first video frame group and the preview image for the second video image are superimposed.

12, when the representative preview image 256d for the first video frame group obtained two seconds prior to the acquisition of the second video image is selected, the merge unit 182 immediately selects the second preview image 256d 2 seconds before And a third video image by merging the first video frames and the second video frames acquired one second before.

At this time, the selected representative preview image 256d and the preview image 256f for the second video image may be displayed on the display unit 251 together. In addition, a preview image 257 for the third video image may be displayed on the display unit 251. [ The preview image 257 for the third video image may be displayed in a form in which the representative preview image 256d for the first video frame group and the preview image for the second video image are superimposed.

Further, according to the embodiment disclosed herein, the above-described method can be implemented as a code that can be read by a processor on a medium on which the program is recorded. Examples of the medium that can be read by the processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, etc., and may be implemented in the form of a carrier wave (e.g., transmission over the Internet) .

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 (14)

main body;
A camera unit for acquiring a video image;
A sensing unit for sensing at least one of a first motion of the main body using the motion recognition sensor and a second motion of the user using the camera unit;
A user input unit for receiving a control command for acquiring a video image of the camera unit;
Controlling the camera unit to acquire a first video image when at least one of the first and second motions is a predetermined motion,
A control unit for controlling the camera unit to acquire a second video image when the control command received after acquiring the first video image is a control command for acquiring a video image of the camera unit; And
And a merge unit for merging at least some of the first video frames included in the first video image into second video frames included in the second video image to generate a third video image. ◈ Claim 2 is abandoned due to payment of registration fee. The method according to claim 1,
A buffer memory for storing the first video image; And
And a record memory for storing the second video image. 3. The method of claim 2,
And a display unit,
Wherein,
Controlling the camera unit to acquire the first video image for a predetermined time when at least one of the first and second motions detected is a predetermined motion,
And controls the display unit to display a pop-up window for selecting whether to acquire the second video image after the predetermined time has elapsed. The method of claim 3,
Wherein,
Selectively controlling the camera unit to acquire the second video image based on whether the control command selected through the pop-up window is a control command for acquiring the second video image, And deletes the data from the buffer memory. 5. The method of claim 4,
The above-
And controls the display unit to display preview images corresponding to at least a part of the first video frames included in the first video image when the camera unit finishes acquiring the second video image Mobile terminal. 6. The method of claim 5,
The above-
Grouping the first video frames into a plurality of groups based on time information obtained by each of the first video frames,
Selecting key video frames for each of the plurality of groups,
And controls the display unit to display representative preview images corresponding to each of the representative video frames. The method according to claim 6,
The above-
When at least one of the displayed representative preview images is selected, a group for the selected representative preview image is detected,
And merges the first video frames and the second video frames included in the detected group of the first video frames to generate the third video image. ◈ Claim 8 is abandoned due to the registration fee. 8. The method of claim 7,
Wherein,
When the third video image is generated, the first video image is deleted from the buffer memory while the third video image is stored in the record memory, and the second video image is deleted from the record memory . ◈ Claim 9 is abandoned upon payment of registration fee. 3. The method of claim 2,
Wherein,
Wherein each of the first video frames deletes at least a portion of the first video frames from the buffer memory based on the obtained time information if the available memory capacity of the buffer memory is below a threshold value. ◈ Claim 10 is abandoned due to the registration fee. 3. The method of claim 2,
Wherein the motion recognition sensor for sensing the first motion comprises:
A geomagnetic sensor, a gyro sensor, and an acceleration sensor. A control method for a mobile terminal including a main body and a camera unit for acquiring a video image, the method comprising:
Sensing at least one of a first motion of the main body using the motion recognition sensor and a second motion of the user using the camera unit;
Controlling the camera unit to acquire a first video image if at least one of the sensed first and second motions is a preset motion;
Receiving a control command for acquiring a video image of the camera unit through a user input unit after acquiring the first video image;
Controlling the camera unit to acquire a second video image when the received control command is a control command for acquiring a video image of the camera unit; And
Generating a third video image by merging at least some of the first video frames included in the first video image into second video frames included in the second video image. 12. The method of claim 11,
Storing the first video image in a buffer memory; And
And storing the second video image in a record memory. 13. The method of claim 12,
And controlling the camera unit to acquire a first video image when at least one of the detected first and second motions is a preset motion,
Controlling the camera unit to acquire the first video image for a predetermined time when at least one of the first and second detected motion is a predetermined motion,
Wherein the step of receiving a control command for acquiring a video image of the camera unit through the user input unit after acquiring the first video image comprises:
And controlling the display unit to display a pop-up window for selecting whether to acquire the second video image. 14. The method of claim 13,
Determining whether the control command selected through the pop-up window is a control command for acquiring the second video image; And
And selectively controlling the camera unit to acquire the second video image or deleting the first video image in the buffer memory based on the determination result .

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