KR20170020069A - Mobile terminal and image capturing method thereof - Google Patents

Mobile terminal and image capturing method thereof Download PDF

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Publication number
KR20170020069A
KR20170020069A KR1020150114759A KR20150114759A KR20170020069A KR 20170020069 A KR20170020069 A KR 20170020069A KR 1020150114759 A KR1020150114759 A KR 1020150114759A KR 20150114759 A KR20150114759 A KR 20150114759A KR 20170020069 A KR20170020069 A KR 20170020069A
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KR
South Korea
Prior art keywords
image
angle
narrow
wide
photographing
Prior art date
Application number
KR1020150114759A
Other languages
Korean (ko)
Inventor
한종우
Original Assignee
엘지전자 주식회사
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Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020150114759A priority Critical patent/KR20170020069A/en
Publication of KR20170020069A publication Critical patent/KR20170020069A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor
    • H04N5/23245Operation mode switching of cameras, e.g. between still/video, sport/normal or high/low resolution mode
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72522With means for supporting locally a plurality of applications to increase the functionality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor
    • H04N5/23216Control of parameters, e.g. field or angle of view of camera via graphical user interface, e.g. touchscreen
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor
    • H04N5/23293Electronic viewfinders
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor
    • H04N5/23296Control of means for changing angle of the field of view, e.g. optical zoom objective, electronic zooming or combined use of optical and electronic zooming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/52Details of telephonic subscriber devices including functional features of a camera

Abstract

The present invention relates to a mobile terminal capable of photographing a multi-view angle image of high picture quality by using a dual lens camera with different fields of view (FOV), and an image photographing method thereof. The mobile terminal includes a dual lens camera with wide angle and narrow angle lenses; a display part for displaying a photographed image; and a control part for analyzing a wide angle image acquired through the wide angle lens and displayed as a basic preview image to determine a photographing type and automatically set a wide angle or narrow angle mode corresponding to the determined photographing type.

Description

[0001] MOBILE TERMINAL AND IMAGE CAPTURING METHOD THEREOF [0002]

The present invention relates to a mobile terminal capable of photographing a multi-view angle image of high picture quality using a dual lens camera at different angle of view (FOV), and a method of photographing the same.

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

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

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

Recently, a self-adhesive rod and a wide-angle lens have been used to photograph a wider view angle than a general lens in a selfie photograph using a mobile terminal.

However, there is an inconvenience to attach / detach to / from a mobile terminal when necessary, and it is advantageous when a plurality of people take a picture or take a background together because a wide range of self- There is a disadvantage that it occurs.

Therefore, there is a need for a method that can more easily perform the generalized scissors photography and the self-portrait photography using the wisdom lens / wide angle lens.

Accordingly, it is an object of the present invention to provide a mobile terminal and a method of photographing the same, which can photograph a multi-view angle image of high image quality using a dual lens camera at different angle of view (FOV).

It is another object of the present invention to provide a mobile terminal capable of automatically setting a wide-angle mode and a narrow-angle mode by recognizing a surrounding environment to be photographed, and a method of photographing the same.

Another object of the present invention is to provide a mobile terminal capable of selectively synthesizing images of dual lenses and correcting the angle of view of the photographed composite image, and a method of photographing the same.

According to an aspect of the present invention, there is provided a mobile terminal including: a dual lens camera having a wide angle and a narrow angle lens; A display unit for displaying a photographed image; And a control unit for analyzing the wide angle image acquired through the wide angle lens and displayed as the basic preview image to determine the photographing type and automatically setting the wide angle or narrow angle mode corresponding to the determined photographing type.

According to an aspect of the present invention, there is provided a method for capturing an image of a mobile terminal, the method comprising: displaying a wide angle image obtained through a wide angle lens as a base preview image; Determining a photographing type by analyzing the displayed wide-angle image, and automatically setting a wide-angle or narrow-angle mode corresponding to the determined photographing type; Selecting an image to be photographed by performing switching between a wide angle image, a narrow angle image, and a composite image according to a touch input in the automatically set mode; And photographing the selected image.

The present invention is advantageous in that a better quality image can be obtained by analyzing a wide angle image obtained by a dual lens camera to automatically set a photographing mode and providing a composite image of a wide angle image and a narrow angle image in the set photographing mode have.

In addition, the present invention is advantageous in that a new composite image can be obtained easily by correcting the angle of view (FOV) of a photographed image using a touch input after photographing.

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

FIG. 1A is a block diagram for explaining a mobile terminal according to the present invention; FIG.
FIGS. 1B and 1C are conceptual diagrams illustrating an example of a mobile terminal according to the present invention in different directions. FIG.
Figure 2 shows the arrangement of a dual lens camera with different angle of view (FOV).
3 is a flowchart illustrating a method of photographing using a mobile terminal and a dual lens camera according to an embodiment of the present invention.
4 is an example of setting an angle of view to be used for each shot in the camera menu.
5A to 5D illustrate an embodiment in which a preview image is analyzed in the present invention to automatically set a view angle mode.
FIG. 6 illustrates an embodiment of performing switching between wide-angle / narrow-angle images through touch input before photographing according to an embodiment of the present invention.
FIG. 7 shows another embodiment of the present invention in which switching between wide angle / narrow angle images is performed through touch input before photographing.
FIG. 8 illustrates switching between wide angle / narrow angle / composite images using an LDAF sensor according to an embodiment of the present invention.
9A and 9B illustrate the first embodiment of the present invention in which the gradation (FOV) of the synthesized image is corrected according to the touch input.
FIGS. 10A and 10B illustrate another embodiment of the present invention in which the gradation (FOV) of a synthesized image is corrected according to a touch input.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

In addition to vibration, the haptic module 153 may be configured to perform various functions such as a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 153 can transmit the tactile effect through the direct contact, and the tactile effect can be felt by the user through the muscles of the finger or arm. The haptic module 153 may include two or more haptic modules 153 according to the configuration of the mobile terminal 100.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

The present invention proposes a method of automatically setting the wide-angle mode or the narrow-angle mode through peripheral recognition when operating a dual lens camera having different angle of view (FOV).

Further, the present invention proposes a method of correcting an image acquired through two lenses or a composite image acquired through two lenses.

2 is a layout structure of a dual lens camera having different angle of view (FOV).

Referring to FIG. 2, the dual lens camera 200 includes a dual lens having a different angle of view (FOV) (multi-angle of view), that is, a wide-angle lens 200a and a narrow-angle lens 200. The dual lens camera 200 may be disposed on the upper right of the front of the terminal. In particular, in FIG. 1B, the camera 121a may be replaced with a dual lens camera 200 and disposed at the upper right corner. In this case, the position of the other element can be changed.

The coverage of the wide-angle lens 200a is larger than the coverage of the narrow-angle lens 200. [ Therefore, the wide-angle lens 200a is advantageous when taking a self-portrait or a group photograph on the background of a sightseeing spot or the like, and the narrow-angle lens 200 is advantageous when an individual does not want to show a background . Hereinafter, the image photographed using the wide angle lens 200a is referred to as a wide angle image, and the image photographed using the narrow angle lens 200 is referred to as a narrow angle image.

3 is a flowchart illustrating a method of photographing a mobile terminal using a dual lens camera according to an embodiment of the present invention.

Referring to FIG. 3, the user selects an angle of view setting item in the camera menu, and sets which shooting shot the wide angle lens 200a and the narrow angle lens 200 are to be used (S100). In step 100, when the user completes the setting of the angle of view for each shooting stage in the menu, the controller 180 stores the set angle of view information in the memory 170.

When the user starts shooting the dual lens camera, the controller 180 analyzes the preview image displayed on the display unit 151 (S110). If the current user selects a certain shot (such as a personal shot, a group shot, Shot, and personal shot at a special place), and then automatically selects a view angle mode corresponding to the determined shot (S120). The type of seed can be set by the user as required.

The preview image corresponding to the selected angle-of-view mode can be switched (changed) to another angle-of-view mode according to the touch input. When the desired image is selected by the image switching, the user can perform correction (S130). As an example, a wide-angle image can be converted to a narrow-angle image and a composite image.

When the correction of the image is completed in step S130, the controller 180 performs a general photographing operation or a self-photographing operation in the selected angle-of-view mode according to the photographing instruction of the user, that is, physical button input, touch input, .

In particular, when shooting is performed according to a touch gesture input, the controller 180 may display a preview image of a video image or a composite image having a different angle of view according to the left-right movement or the back-and- When the expanding photographing command is finally detected, the preview image is taken. The forward / backward (distance) sensing of the hand can be detected through a laser autofocus (LDAF) sensor. The detailed operation will be described later. When the photographing is completed in step S140, the control unit 180 displays the photographed image (wide angle image, narrow angle image, and composite image) on the display unit 151 and stores it in the memory 170 (S150). At this time, the controller 180 basically stores both the wide-angle image and the narrow-angle image in the memory 170, and utilizes the FOV or the size of the photographed image when the image is corrected.

After that, the user can change the size of the photographed image in the mode of exclusive use of the angle of view modification (S160).

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a method of photographing using a mobile terminal and a dual lens camera according to an embodiment of the present invention will be described with reference to the drawings. In the present invention, the angle of view setting is used in the same sense as the setting of the angle of view mode.

Setting the angle of view (wide angle, narrow angle) before shooting (S110)

4 is an example of setting an angle of view to be used for each shot in the camera menu.

Referring to FIG. 4, in the view angle menu setting, the default view angle is set to the wide angle. Accordingly, when setting the angle of view for each shot (or scene), the user can set the wide angle or the narrow angle by toggling the default wide angle provided on the right side.

Image analysis and automatic setting of angle of view mode (S110, S120)

5A to 5D illustrate embodiments in which the preview image is analyzed and the angle of view mode is automatically set in the present invention.

If the user does not set the angle of view (angle of view angle) separately in the menu (FIG. 4) before shooting, the controller 180 basically recognizes the surrounding environment using the wide angle mode. That is, the controller 180 displays the wide angle preview image (abbreviated as a wide angle image hereinafter) recognized on the display 1510 using the wide angle lens 200a of the dual lens 200 in the default wide angle mode. The wide angle coverage in the wide angle image is 50a and the narrow coverage is 50b. In addition, the control unit 180 displays a guide image (box) 60 indicating the narrow coverage on the wide angle image so that the user can switch to the narrow- The information may be a guideline box (e.g., a rectangle).

The control unit 180 analyzes the current wide angle image to determine the type of the shot shot the user wants to take, and automatically sets the camera mode.

In the present invention, the controller 180 can classify indoor / outdoor, individual / group, objects, buildings, famous places, and the like through face recognition, object recognition, In addition, the controller 180 can classify the indoor images into a home or an art gallery using object recognition.

In one embodiment, if the background is indoor and a personal shot, the controller 180 changes the current wide-angle mode to a narrow-angle mode and displays a narrow-angle image on the screen, as shown in FIG. 5A .

In another embodiment, if the background is indoor and a group shot is obtained as a result of the analysis, the controller 180 maintains the current wide-angle mode and displays a wide-angle image on the screen, as shown in FIG. 5B.

As a result of the analysis, if the background is indoor and a personal shot but the main object (eg, face) is out of the narrow coverage 50b, the wide angle mode is maintained as shown in FIG. 5C, Display the image.

In another embodiment, if the background is a room but a place meaningful as a bowling alley, the current wide-angle mode is maintained and a wide-angle image is displayed on the screen, as shown in FIG. 5C.

Therefore, the present invention recognizes the surrounding environment and automatically sets the angle-of-view mode, so that a better quality image can be obtained.

Switching of the image of the angle of view through the touch (S130)

5A to 5D, the user can perform switching (switching) to another image (wide angle / narrow angle image) through touch input while the image of the predetermined mode is displayed on the screen by mode setting.

FIG. 6 is an embodiment of performing switching between wide angle / narrow angle images through touch input before photographing.

6, when the inside area of the guide box (image) 60 indicating the narrow-angle coverage is touched (double-touch or long-touch) in a state that the wide-angle image is displayed, the controller 180 displays the currently displayed wide- Change the image to a narrow-angle image. If the user touches the narrow-angle image (double-touch or long-touch) while the narrow-angle image is displayed, the controller 180 changes the narrow-angle image currently displayed to a wide-angle image.

FIG. 7 shows another embodiment of performing switching between wide angle / narrow angle / composite images through touch input before photographing.

7, when the user double-touches or touches the edge of the narrow-angle coverage guide box (image) 60 in a state in which the wide-angle image is displayed, the control unit 180 controls the synthesis of the wide- Display the image. The combined image is a high-quality zoomed image generated by adding a weight to a narrow-angle image and performing an image fusion with the wide-angle image. In other words, a composite image can be said to be a fused image of a background of a narrow-angle image into a wide-angle image.

The size of the narrow coverage guide box (image) 60 is increased by the image overlap because the portion covered by the narrow-angle image is the same in the composite image.

 Accordingly, the composite image according to the present invention is displayed in a zoomed form while preventing deterioration of image quality caused by up-scaling of the conventional wide-angle image.

If the user touches the inside area of the guide box (image) 60 by double touch or long touch while the synthesized image is displayed, the controller 180 changes the synthesized image currently displayed to a narrow angle image, When the user double-touches or long-touches the narrow-angle image, the initial wide-angle image is displayed.

Switching of the image of the angle of view through the touch gesture (S130)

The present invention is not limited to switching the angle of view image using the guide box (image) displayed on the screen, but may be applied to a rear camera (121 in Fig. 1C) or an LDAF sensor (not shown) It is also possible to switch the angle of view image by inputting the touch gesture. Even in this case, the basic image is a wide-angle image.

8 is an embodiment for performing switching between wide angle / narrow angle / composite images using an LDAF sensor.

 The LDAF sensor is a sensor that can measure the distance between the LDAF and the reference object using the light reflected from the reference object after emitting the laser to the reference object. Therefore, according to the present invention, after the finger is registered as a reference object, the wide angle / narrow angle / composite image can be rapidly switched according to the distance between the LDAF sensor and the finger. Particularly, in the memory 170, a wide angle, a narrow angle, and a composite image to be displayed by the distance between the LDAF sensor and the finger are registered in advance.

That is, as shown in FIG. 8, the controller 180 measures the distance between the LDAF sensor and the finger measured through the LDAF sensor, and continuously displays the wide angle image until the measured distance becomes the first separation distance. The first separation distance is a state in which the finger touches the LDAF sensor or is slightly apart.

When the fingers are spaced apart to reach the second separation distance, the controller 180 changes the currently displayed wide-angle image to a narrow-angle image. When the finger is further apart and reaches the third separation distance, the controller 180 changes the currently displayed narrow-angle image to a composite image. At this time, the order of the images to be switched by the separation distance may be changed and may be changed in the menu.

According to another embodiment, the present invention can switch the wide angle / narrow angle / composite image according to the forward / backward or left / right movement of the hand after recognizing the hand, and when the image with a desired angle of view is selected, .

Image shooting and storage (S140, S150)

When the selection of the desired angle-of-view image to be photographed is completed through the switching of the angle-of-view image as shown in FIGS. 6 and 7, the user can perform shooting of the selected angle-of-view image in accordance with physical button input or touch input.

When the selection of the desired angle of view image to be photographed is completed through the switching of the angle of view image shown in FIG. 8, the user can perform photographing of the selected angle of view image with a finger moving or bending gesture.

When the image capturing is completed, the control unit 180 stores the captured image in the memory 170. At this time, the control unit 180 also displays the wide angle image and the narrow angle image together with the captured image (e.g., composite image) (S150). The reason for this is to utilize the FOV correction for the image after shooting.

The shot image correction (S160)

The present invention can correct FOV grades of photographed images (wide angle image, narrow angle image, and composite image). In particular, the present invention adjusts the FOV of the image, which should be distinguished from simply increasing the size of the image.

The FOV rating is determined by the following equation (1).

[Equation 1]

FOV rating = FOV difference / constant

That is, in the present invention, assuming that the wide angle is 120 degrees, the narrow angle is 45, and the constant is 10, the FOV rating is calculated as (120 degrees -45 degrees) / 10 = 7.5. Accordingly, the present invention sets the first degree to about 8 degrees, and increases or decreases the FOV of the image by one rank according to the touch of the user. If the FOV is increased, a background that is not visible in the previous image appears.

That is, the control unit 18 controls the FOV of the image to be increased or decreased by one rank each time the photographed wide-angle image or the narrow-angle image is touched. In this case, the control unit 180 can increase the number of taps when the right side is touched and reduce the number of touched left sides.

FIGS. 9A and 9B show a first embodiment for correcting the grade (FOV) of a composite image according to a touch input.

9A and 9B, when the FOV correction mode is selected by the user, the controller 180 displays the narrow coverage guide box 60 together with the composite image photographed on the screen, for example. In this state, when the user applies the touch input, the controller 180 changes the FOV rating of the composite image according to whether the inner area is touched or the outer area is touched based on the narrow coverage guide box 60. [ In this case, one grade is changed according to the number of touches.

9A, when the user touches the outer area of the narrow coverage guide box 60, the controller 180 adjusts the FOV of the composite image based on the wide angle image to a first grade (about 8 degrees ).

9B, when the user touches the inner area of the narrow coverage guide box 60, the controller 180 adjusts the FOV of the composite image based on the narrow-angle image to a first grade (about 8 degrees ). In this case, the size of the narrow coverage guide box 60 also increases.

FIGS. 10A and 10B show another embodiment for correcting the grade (FOV) of the composite image according to the touch input. This embodiment is useful when the narrow coverage guide box 60 is not displayed in the FOV correction mode.

As shown in FIG. 10A, when a user draws a circle in a state in which a user touches a shot image (e.g., a composite image) with a finger, the controller 180 increases or decreases the FOV of the shot image according to the finger rotation direction and rotation angle. . As the FOV is increased or decreased, the controller 180 synthesizes the wide angle image and the narrow angle image stored in the memory 170, and displays the corrected synthesized image. By the FOV adjustment, it is as if the photographed image appears to be zoomed in or out in the present invention.

For example, the control unit 180 decreases the FOV when the finger is moved clockwise (zooming in), and increases the FOV when the finger is moved counterclockwise.

In addition, the present invention divides the entire FOV into a certain grade, divides the circles drawn by the fingers into a predetermined section, assigns FOV grades to the sections, and gradually increases or decreases the FOV according to the amount of rotation for each section. ) Frequently combines the previously stored wide-angle image and the narrow-angle image according to the change of the FOV, thereby eliminating the disadvantage of displaying the corrected synthesized image.

In addition, since the present invention can generate a composite image at any time with the original wide-angle / narrow-angle image, if the user changes the composite image, the existing composite image is deleted and the new image is stored in the memory 170.

In the present invention, a photographing method using a dual lens camera as an example of a mobile terminal has been described for convenience of explanation, but the present invention is not limited to this and is applied to all portable devices equipped with a dual lens camera. In particular, the portable device may be a camera itself equipped with a dual lens camera.

As described above, the present invention analyzes a wide angle image obtained by a dual lens camera to automatically set a photographing mode, and provides a composite image of a wide angle image and a narrow angle image in the set photographing mode, There are advantages to be gained.

In addition, the present invention is advantageous in that a new composite image can be obtained easily by correcting the angle of view (FOV) of a photographed image using a touch input after photographing.

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

50a: Wide angle coverage 50b: Coarse coverage
60: narrow-range coverage guide box 151:
170: memory 180:
200: Dual lens camera 200a: Wide angle camera
200b; Coarse camera

Claims (20)

  1. Dual lens camera with wide angle and narrow angle lenses;
    A display unit for displaying a photographed image; And
    And a control unit for analyzing the wide angle image acquired through the wide angle lens and displayed as the basic preview image to discriminate the photographing type and automatically set the wide angle or narrow angle mode corresponding to the determined photographing type terminal.
  2. The method according to claim 1,
    A personal photographing, a group photographing, an outdoor photographing, an indoor photographing, and a private photographing in a special place.
  3. The mobile terminal of claim 1, further comprising a memory for storing wide angle or narrow angle mode information set by a user for each of the types of photographing.
  4. The apparatus of claim 1, wherein the control unit
    When the wide-angle mode is set, a first guide box indicating a portion which can be photographed in a narrow-angle image together with the wide-
    And switches the current wide angle image to a different angle of view image according to a first touch input based on the first guide box.
  5. 5. The apparatus of claim 4, wherein the control unit
    When the first area of the first guide box is touched first, the current wide angle image is changed to the narrow angle image, and when the changed narrow angle image is again touched, the wide angle image is returned.
  6. 5. The apparatus of claim 4, wherein the control unit
    When the first touch box is touched first, a second guide box whose size is increased together with the composite image of the wide angle image and the narrow angle image is displayed,
    Wherein when the inner area of the second guide box is touched first, the current combined image is changed to a narrow-angle image, and when the changed narrow-angle image is again touched, the wide-angle image is returned.
  7. 7. The method of claim 6,
    Wherein the wide angle image is a zoomed image synthesized with a background image, and the second guide box is larger than the first guide box.
  8. 5. The apparatus of claim 4, wherein the control unit
    The LDAF sensor is used to measure the separation distance of the fingers separated by touching the LDAF sensor, and sequentially switches the current wide-angle image to the narrow-angle image and the composite image according to the measured separation distance .
  9. The apparatus of claim 1, wherein the control unit
    And generates a new angle-of-view-corrected image by changing the angle of view (FOV) of the wide angle image, the narrow angle image, and the composite image photographed in the set wide angle or narrow angle mode according to the touch input.
  10. 10. The apparatus of claim 9, wherein the control unit
    (FOV) of the composite image is changed according to an inner or outer touch of a second guide box displayed on the captured composite image,
    When the inside of the second guide box is touched, the angle of view (FOV) of the composite image is increased or decreased based on the narrow angle image when the outside is touched with reference to the wide angle image.
  11. 10. The apparatus of claim 9, wherein the control unit
    The angle of view (FOV) of the composite image is changed according to the circular drag input inputted to the photographed composite image,
    Wherein when the drag input is a clockwise direction, the angle of view (FOV) of the composite image is decreased according to the drag distance, and when the drag input is counterclockwise, the angle of view (FOV) of the composite image is increased according to the drag distance.
  12. A method of photographing a dual lens camera having a wide angle and a narrow angle lens,
    Displaying a wide angle image obtained through a wide angle lens as a base preview image;
    Determining a photographing type by analyzing the displayed wide-angle image, and automatically setting a wide-angle or narrow-angle mode corresponding to the determined photographing type;
    Selecting an image to be photographed by performing switching between a wide angle image, a narrow angle image, and a composite image according to a touch input in the automatically set mode; And
    And photographing the selected image. The method of claim 1, further comprising:
  13. 13. The method according to claim 12,
    The method according to any one of claims 1 to 3, wherein the photographing of the mobile terminal comprises photographing of an individual, photographing of a group, photographing of an outdoor area, photographing of a room, and personal photographing at a special place.
  14. The method according to claim 12, wherein when the wide angle mode is set in the setting step, a first guide box indicating a portion that can be photographed in a narrow angle image together with the wide angle image is displayed on the display unit.
  15. 13. The method of claim 12, wherein the step of selecting
    And switching the current wide angle image to an image of a different angle of view according to a first touch inputted in the vicinity of a first guide box indicating the coverage of the narrow angle image in the wide angle image .
  16. 16. The method of claim 15, wherein the image switching step
    Changing the wide angle image to a narrow angle image when the inner area of the first guide box is touched first and returning to the wide angle image when the narrowed angle image is touched again;
    Displaying a second guide box whose size is increased together with a composite image of the wide angle image and the narrow angle image when the first touch box's first touch is touched; And
    And changing the composite image to a narrow-angle image if the inner area of the second guide box is first touched, and returning to the wide-angle image when the narrow-angle image is again touched by the first touch How to shoot.
  17. 17. The method of claim 16,
    Wherein the wide angle image is a zoomed image combined with the background image, and the second guide box is larger than the first guide box.
  18. 16. The method of claim 15, wherein the image switching step
    Wherein the wide angle image is sequentially switched to the narrow angle image and the composite image according to the distance between the LDAF sensor and the finger measured through a laser autofocus (LDAF) sensor provided at the rear side.
  19. 13. The method of claim 12, further comprising: changing a view angle (FOV) of the wide angle image, the narrow angle image, and the composite image captured in the set wide angle or narrow angle mode according to a touch input to generate a new angle- Wherein the method comprises the steps of:
  20. The method of claim 9, wherein generating the new image comprises:
    Changing an angle of view (FOV) of the composite image according to an inner or outer touch of a second guide box displayed on the captured composite image; And
    And changing an angle of view (FOV) of the synthesized image according to a circular-type drag input input to the photographed synthesized image,
    When the inside of the second guide box is touched, the angle of view (FOV) of the composite image is changed based on the wide angle image and the narrow angle image when the outside is touched,
    Wherein when the drag input is a clockwise direction, the angle of view (FOV) of the composite image is decreased according to the drag distance, and if the drag input is counterclockwise, the angle of view (FOV) of the composite image is increased according to the drag distance .
KR1020150114759A 2015-08-13 2015-08-13 Mobile terminal and image capturing method thereof KR20170020069A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019098450A1 (en) * 2017-11-15 2019-05-23 한국과학기술원 System for guiding gaze of user using mobile device and method thereof
WO2019160194A1 (en) * 2018-02-14 2019-08-22 엘지전자 주식회사 Mobile terminal and control method therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019098450A1 (en) * 2017-11-15 2019-05-23 한국과학기술원 System for guiding gaze of user using mobile device and method thereof
WO2019160194A1 (en) * 2018-02-14 2019-08-22 엘지전자 주식회사 Mobile terminal and control method therefor

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