KR101850824B1 - Electronic device and control method for electronic device - Google Patents

Abstract

The present invention relates to an electronic apparatus and a control method of the electronic apparatus.
In the present invention, when the auto focus function is executed in the stereoscopic image shooting mode, the electronic device calculates the depth value in the stereoscopic image of the indicator indicating the area to be auto-focused based on the depth value in the stereoscopic image of the object, .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electronic device,

The present invention relates to an electronic apparatus and a control method of the electronic apparatus.

The auto focus function is a camera function that automatically focuses on a specific object (subject), and can be largely classified into an active mode and a manual mode depending on the auto focus method. The active method emits ultrasonic waves or infrared rays to measure the distance to the object, and the manual method controls the focus using naturally reflected light from the object. The manual method may include a double phase matching method, a contrast detection method, a phase difference detection method, and the like.

In recent years, there has been an increasing tendency to supply electronic devices capable of shooting stereoscopic images in addition to a function of supporting stereoscopic image display.

On the other hand, in order to provide an autofocus function when a stereoscopic image is photographed by an electronic device, it is necessary to provide a user interface different from that in the two-dimensional image shooting.

An object of the present invention is to provide an electronic apparatus and a control method of an electronic apparatus that provide a user-friendly interface when photographing a stereoscopic image.

An electronic device according to an aspect of the present invention includes: a display module having a panel for realizing stereoscopic vision; A plurality of cameras for acquiring an external image; And a plurality of images obtained through the plurality of cameras are synthesized to generate a stereoscopic image. When the auto focus function is executed while entering the stereoscopic image shooting mode, And a controller for varying the depth value of an indicator indicating an area to be subjected to the autofocus based on a depth value of the object in the stereoscopic image.

According to another aspect of the present invention, there is provided a method of controlling an electronic device including a plurality of cameras, the method comprising: entering a stereoscopic image photographing mode; Displaying a preview image of a stereoscopic image generated by synthesizing a plurality of images obtained through a plurality of cameras; Acquiring a first depth value in the stereoscopic image of an object to be autofocused when an auto focus function is executed; Acquiring a second depth value in the stereoscopic image of an indicator indicating an area to be subjected to the auto focus based on the acquired first depth value; And displaying the indicator based on the obtained second depth value.

The electronic device and the control method of the electronic device according to the present invention provide a user-friendly menu environment and support the user to feel stereoscopic effect effectively.

1 is a block diagram of an electronic apparatus according to an embodiment of the present invention.
2 and 3 are views for explaining a stereoscopic image displaying method using a binocular parallax according to an embodiment of the present invention.
FIGS. 4 and 5 are views showing an external appearance of an electronic device according to an embodiment of the present invention.
6 illustrates an example of acquiring a plurality of images for generating a stereoscopic image according to a binocular disparity using a plurality of cameras provided in an electronic apparatus according to an exemplary embodiment of the present invention.
7 is a flowchart illustrating a method of performing an autofocus function in the electronic device 100 according to an embodiment of the present invention.
FIG. 8 illustrates an example of displaying a stereoscopic image capturing screen in the electronic device 100 according to an embodiment of the present invention.
FIG. 9 shows an example of displaying an auto-focus indicator in the electronic device 100 according to an embodiment of the present invention.
FIG. 10 illustrates an example of determining the depth value of the auto-focus indicator in the electronic device 100 according to an embodiment of the present invention.
11 is a flowchart illustrating a method of displaying a menu screen in the electronic device 100 according to an embodiment of the present invention.
12 and 13 show examples of displaying a menu screen in the electronic device 100 according to an embodiment of the present invention.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. It is to be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Like reference numerals designate like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. In addition, numerals (e.g., days, days, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another component

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.

In addition, the suffix "module" and " part "for constituent elements used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Meanwhile, the electronic device according to the embodiment of the present invention may be a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a navigation device, a television ), A desktop computer, a set-top box, a digital camera, and the like.

1 is a block diagram of an electronic apparatus according to an embodiment of the present invention.

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

Hereinafter, the components will be described in order.

The communication unit 110 may include one or more modules that enable communication between the electronic device 100 and the communication system or between the electronic device 100 and the network in which the electronic device 100 is located. For example, the 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 / or broadcast-related information from an external broadcast management server through a broadcast channel.

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

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

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

The broadcast receiving module 111 receives broadcast signals using various broadcasting systems. In particular, the broadcast receiving module 111 may be a digital multimedia broadcasting broadcasting (DMBT), a digital multimedia broadcasting satellite (DMBS), a media forward link only (MediaFLO), a digital video broadcasting ), And ISDBT (Integrated Services Digital Broadcast Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems that provide broadcast signals as well as the digital broadcasting system described above.

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

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

The wireless Internet module 113 refers to a module for wireless Internet access, and the wireless Internet module 113 can be embedded in the electronic device 100 or externally. WLAN (WiFi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

The position information module 115 is a module for confirming or obtaining the position of the electronic device. A typical example of the location information module is a GPS (Global Position System) module. According to the current technology, the GPS module 115 calculates information on a distance (distance) from three or more satellites to one point (entity), information on the time when the distance information is measured, , Three-dimensional position information according to latitude, longitude, and altitude of one point (individual) in one hour can be calculated. Further, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is also used. The GPS module 115 continues to calculate the current position in real time and uses it to calculate speed information.

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

The image frame processed by the camera 121 may be stored in the memory 160 or may be transmitted to the outside through the communication unit 110. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

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

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

The sensing unit 140 senses the current state of the electronic device 100, such as the open / close state of the electronic device 100, the position of the electronic device 100, the presence or absence of user contact, the orientation of the electronic device, And generates a sensing signal for controlling the operation of the electronic device 100. For example, when the electronic device 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. In addition, it may be responsible for a sensing function related to whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor.

The output unit 150 is for generating output related to visual, auditory or tactile sense and includes a display module 151, an acoustic output module 152, an alarm unit 153, and a haptic module 154 .

The display module 151 displays information to be processed in the electronic device 100. For example, when the electronic device 100 is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the electronic device 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display module 151 may be a liquid crystal display, a thin film transistor liquid crystal display, an organic light emitting diode, a flexible display, a 3D display And may include at least one.

Some of these displays may be transparent or light transmissive so that they can be seen through. This may be referred to as a transparent display. A typical example of the transparent display is a transparent LCD or the like. The rear structure of the display module 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 module 151 of the terminal body.

There may be two or more display modules 151 according to the embodiment of the electronic device 100. [ For example, in the electronic device 100, a plurality of display modules may be spaced apart or integrally arranged on one surface, and may be disposed on different surfaces, respectively.

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

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

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

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

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

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

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

The sound output module 152 may output audio data received from the communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 outputs sound signals associated with functions (e.g., call signal reception tones, message reception tones, etc.) performed in the electronic device 100. The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

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

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

In addition to the vibration, the haptic module 154 may be configured to perform various functions such as an effect of stimulation by a pin arrangement vertically moving with respect to a contact skin surface, an effect of stimulation by air spraying force or suction force through a jet opening or a suction opening, A variety of tactile effects such as an effect of stimulation through contact of an electrode, an effect of stimulation by an electrostatic force, and an effect of reproducing a cold sensation using a heat absorbing or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to feel the tactile effect through the muscles of the user's finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

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

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM At least one of a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read- Type storage medium. The electronic device 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

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

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

When the electronic device 100 is connected to an external cradle, the interface unit may be a path through which electric power from the cradle is supplied to the electronic device 100 or various command signals input from the cradle by the user It can be a passage to the device. Various command signals input from the cradle or the power source may be operated as a signal for recognizing that the electronic device is correctly mounted on the cradle.

The control unit 180 typically controls the overall operation of the electronic device. For example, 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 controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed 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 embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, microcontrollers, microprocessors, and electrical units for performing functions. In some cases such embodiments may be implemented using a controller 180 < / RTI >

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. In addition, the software codes may be stored in the memory 160 and executed by the control unit 180. [

FIGS. 2 and 3 are views for explaining a stereoscopic image displaying method using a binocular parallax according to an embodiment of the present invention. FIG. 2 is a view illustrating a method using a lenticular lens array And Fig. 3 shows a method using a parallax barrier.

Binocular parallax is the difference between the left eye and right eye view of a person. When synthesizing the image seen through the left eye and the image seen through the right eye in the human brain, the synthesized image makes a person feel stereoscopic. In the following, a phenomenon in which a person feels stereoscopic effect according to binocular parallax is referred to as 'stereoscopic vision', and a stereoscopic image is used as a stereoscopic image . In addition, when a specific object included in an image causes stereoscopic vision, the object is referred to as a 'stereoscopic object'.

The stereoscopic image display method according to the binocular disparity can be classified into a spectacle type requiring special glasses and a non-eye type requiring no glasses. The spectacle type includes a method using a sunglass having wavelength selectivity, a polarized spectacle method using a shading effect according to a polarization difference, and a time-division spectacle method in which right and left images are alternately presented in a residual image time of the eye. In addition, there is a method of mounting a filter having a different transmittance in each of the right and left eyes to obtain a three-dimensional effect on the movement in the left and right direction in accordance with the time difference of the visual system from the difference in transmittance.

In addition, a parallax barrier system, a lenticular lens system, or a microlens array system is used for a non-eye-safety system in which a stereoscopic effect is generated on the side of the image display surface other than the observer.

Referring to FIG. 2, the display module 151 includes a lenticular lens array 11a to display a stereoscopic image. The lenticular lens array 11a is constituted by a pixel L to be input to the left eye 12a and a pixel R to be input to the right eye 12b are alternately arranged along the lateral direction and the display surface 13 and the left and right eyes 12a, 12b and provides optical discrimination directivity for a pixel L to be input to the left eye 12a and a pixel R to be input to the right eye 12b. Accordingly, the image of the human eye, which has passed through the lenticular lens array 11a, is separated and observed from the left eye 12a and the right eye 12a, and the human brain displays the image viewed through the left eye 12a and the image viewed through the right eye 12b And the stereoscopic image is observed.

Referring to FIG. 3, in order to display a stereoscopic image, the display module 151 includes a parallax barrier 11b having a vertical grid shape. The parallax barrier 11b includes a pixel L to be inputted to the left eye 12a and a pixel R to be inputted to the right eye 12b are alternately arranged along the horizontal direction and the display surface 13 and the left and right eyes 12a, 12b so that the images are separated from the left eye 12a and the right eye 12b through an aperture of a vertical grid. Therefore, the human brain combines the image viewed through the left eye 12a and the image viewed through the right eye 12b to observe the stereoscopic image. This parallax barrier 11b is turned on only when it is desired to display a stereoscopic image and separates the incident time. When the flat image is to be displayed, the parallax barrier 11b is turned off so that the incident time can be passed without being separated have.

Meanwhile, the stereoscopic image display methods described above are for illustrating embodiments of the present invention, and the present invention is not limited thereto. The present invention can display stereoscopic images using binocular parallax using various methods in addition to the above-described methods.

4 and 5 are diagrams showing an appearance of an electronic device 100 according to an embodiment of the present invention. FIG. 4 illustrates an example in which the electronic device 100 is a digital camera, and FIG. 5 illustrates an example in which the electronic device 100 is a mobile terminal.

Referring to FIG. 4, the digital camera 100 may include one body. 4A is a front view of the digital camera 100, and FIG. 4B is a rear view of the digital camera 100. FIG. A plurality of cameras 121a and 121b may be provided on a front surface of the digital camera 100. [ A display module 151 is provided on the back of the digital camera 100 and a user input unit 130 such as a keypad is provided. In addition, a circuit for implementing the control unit 180 is provided inside the body of the digital camera 100.

Referring to FIG. 5, the mobile terminal 100 may include one bar type body. 5 (a) is a front view of the mobile terminal 100, and FIG. 5 (b) is a rear view of the mobile terminal 100. FIG. A display module 151 is provided on a front surface of the mobile terminal 100 and a user input unit 130 such as a keypad is provided. In addition, a circuit for implementing the control unit 180 is provided in the body of the mobile terminal 100. A plurality of cameras 121a and 121b may be provided on the back surface of the mobile terminal 100. [

FIGS. 4 and 5 illustrate examples of the appearance of the electronic device 100, and the body shape of the electronic device 100 may vary. For example, the mobile terminal 100 may be implemented as a folder type body. In addition, the position of each component of the electronic device 100 may be varied. For example, the first camera 121a of the mobile terminal 100 may be disposed on the back of the body, and the second camera 121b may be disposed on the bottom of the body.

Meanwhile, the plurality of cameras 121a and 121b provided in the electronic device 100 may be combined to generate a stereoscopic image according to binocular disparity.

6 illustrates an example of acquiring a plurality of images for generating a stereoscopic image according to a binocular disparity using a plurality of cameras 121a and 121b provided in the electronic device 100 according to an embodiment of the present invention. It is.

6A shows an example of acquiring a right eye image through the first camera 121a with respect to the same object 6a and FIG. And an image for the left eye is acquired through the camera 121b.

6, the electronic device 100 acquires a left-eye image and a right-eye image having different time differences through a plurality of cameras 121a and 121b, and acquires the left-eye image and the right- Thereby generating a stereoscopic image.

The embodiments disclosed in this document can be implemented in the electronic device 100 described with reference to Figs.

In this document, the display module 151 may include a panel for realizing stereoscopic vision. As described above, the panel may have a structure for implementing stereoscopic vision by any one of a lenticular lens system and a parallax barrier system.

In this document, the display module 151 is assumed to be a touch screen. As described above, the touch screen can perform both the information display function and the information input function. However, it should be clearly understood that the present invention is not limited thereto.

According to embodiments of the present invention, the panel for implementing stereoscopic vision may be partially activated or deactivated, and accordingly, the display module 151 may partially display the stereoscopic image or the two-dimensional image display mode As shown in FIG.

Hereinafter, a control method of the electronic device 100 according to an embodiment of the present invention and an operation of the electronic device 100 performing the method will be described in detail with reference to the necessary drawings.

7 is a flowchart illustrating a method of performing an autofocus function in the electronic device 100 according to an embodiment of the present invention. 8 to 10 are views for explaining a method of performing an auto focus function in the electronic device 100 according to an embodiment of the present invention.

Referring to FIG. 7, the control unit 180 enters the stereoscopic image shooting mode based on the control input received through the user input unit 130 (S101).

Upon entering the stereoscopic image capturing mode, the controller 180 receives the first image corresponding to the left eye image and the second image corresponding to the right eye image through the plurality of cameras 121a and 121b. In addition, a preview image of the stereoscopic image generated using the first image and the second image is displayed through the display module 151 (S102). That is, a first image input through the first camera 121a and a second image input through the second camera 121b are combined to generate a stereoscopic image, and the generated stereoscopic image is displayed on a screen in a preview form .

FIG. 8 illustrates an example of displaying a stereoscopic image capturing screen.

Referring to FIG. 8, the controller 180 generates a stereoscopic image 8a by combining a first image input through the first camera 121a or a second image input through the second camera 121b. Also, the generated stereoscopic image 8a is displayed in the preview area PA1 through the display module 151. FIG.

Since the plurality of cameras 121a and 121b are spaced apart from each other by a predetermined distance, a difference (parallax) occurs between the first image and the second image obtained through the plurality of cameras 121a and 121b. Due to this parallax, some objects included in the stereoscopic image 8a generated by synthesizing the two images can be displayed separately in two as shown in Fig.

According to an embodiment of the present invention, the control unit 180 may display buttons, icons, and the like displayed in relation to the camera function in the form of a three-dimensional object in addition to the preview image 8a displayed in the preview area PA1 .

8, the controller 180 controls the depth value of the photographing button 8b to implement stereoscopic viewing in which the photographing button 8b is projected.

In this way, when an object such as a button or an icon related to a camera function is also expressed as a three-dimensional object, the user can feel more intense stereoscopic vision.

Referring again to FIG. 7, the control unit 180 performs an auto focus function based on the control input received through the user input unit 130 (S103).

The auto focus function is a camera function that automatically detects and focuses on a specific object (subject). The object to be focused by the auto-focus function is selected in the center or the object located closest to the camera, and can be selected differently depending on the camera system.

In the course of executing the auto-focus function, the control unit 180 may display an indicator indicating the focused object or area. Here, the auto focus indicator may be displayed in various forms such as a frame, an icon, and the like.

Fig. 9 shows an example of displaying an auto-focus indicator.

Referring to FIG. 9, the control unit 180 controls the plurality of cameras 121a and 121b to focus on the lion OB1 as the auto focus function is executed. In addition, a frame-type autofocus indicator AF1 for displaying the focused object OB1 is displayed on the screen.

Referring again to FIG. 7, according to an exemplary embodiment of the present invention, when an object to be focused is selected, the controller 180 obtains a depth value in a stereoscopic image of the selected object (S104). Also, the depth value in the stereoscopic image of the indicator indicating the auto-focus area is controlled based on the obtained depth value (S105).

In step S104, the controller 180 may obtain a depth value for a specific object using the parallax between the first image and the second image.

That is, when a stereoscopic image is generated by synthesizing two images, the depth value of the object can be obtained based on a convergence point where the specific object is synthesized.

In step S105, the controller 180 controls the depth value of the autofocus indicator so that the autofocus indicator implements stereoscopic vision located on the same distance as the object to be focused on. Here, the depth value of the auto-focus indicator can be controlled by adjusting the time difference of the two indicators, that is, the positions where the two indicators are included in each image, in the process of combining the auto-focus indicator with each of the first image and the second image .

In step S104 and step S105, the controller 180 may display the depth of the auto-focus indicator while changing the depth of the auto-focus indicator according to the currently focused object or area while the auto focus function is being performed.

For example, in the case of tracking an object to be focused while moving the focus to a position gradually away from the near position, the indicator is also displayed close to the electronic device 100, The depth value may be gradually varied.

Also, for example, when the depth value of an object to be autofocused is changed, the depth value of the autofocus indicator may be changed by reflecting the changed depth value.

FIG. 10 shows an example of determining the depth value of the auto-focus indicator.

10 shows a virtual three-dimensional space VS1 viewed by the user by stereoscopic vision. The virtual three-dimensional space VS1 displays the position of each object in the three-dimensional space VS1 with reference to the display surface 10a of the electronic device 100 will be. In FIG. 10, each object located in the virtual three-dimensional space VS1 protrudes from the left side of the display surface 10a of the electronic device 100, .

Referring to FIG. 10, when the closest object based on the user is selected as the auto-focus target, the controller 180 selects the leftmost object OB1 as the auto-focus target . Accordingly, the control unit 180 controls the cameras 121a and 121b to focus on the selected object OB1. Further, an indicator 10b indicating the focused object OB1 is displayed on the screen.

On the other hand, in order to display the indicator 10b, the control unit 180 acquires the depth value D1 of the currently focused object OB1. In addition, the depth value of the indicator 10b is determined using the depth value D1 of the obtained object OB1.

According to the foregoing, by varying the depth value of the indicator indicating the auto-focus area according to the depth value in the stereoscopic image of the object to be focused, the user can further increase the area or object to be focused in the virtual three- It is possible to grasp intuitively.

11 is a flowchart illustrating a method of displaying a menu screen in the electronic device 100 according to an embodiment of the present invention. 12 and 13 are diagrams for explaining a method of displaying a menu screen in the electronic device 100 according to an embodiment of the present invention.

Referring to FIG. 11, the electronic device 100 displays a first menu screen on the screen based on a control input input through the user input unit 130 (S201).

The control unit 180 switches from the first menu screen to the second menu screen when the menu change is requested through the user input unit 130 (S202).

For example, when a setting menu related to a specific function is selected from the first menu screen, the second menu screen corresponding to the setting screen of the corresponding function can be switched.

In addition, as the control unit 180 switches to the second menu screen, the depth values of the first menu screen and the second menu screen are controlled differently, and the first menu screen and the second menu screen having different depth values The display module 151 is controlled so as to implement stereoscopic viewing displayed in a superimposed manner (S203).

12 and 13 show examples of displaying a menu screen.

Referring to FIG. 12A, the controller 180 displays the first menu screen MW1 on the screen. When only the first menu screen MW1 is displayed in the display area, the controller 180 determines whether the first menu screen MW1 is displayed on the display surface corresponding to the depth value zero of the electronic device 100 The depth value of the first menu screen MW1 is controlled.

Referring to FIG. 12B, the controller 180 switches the first menu screen MW1 from the first menu screen MW1 to the second menu screen MW2 so that the first menu screen MW1 gradually moves backward The depth value of the first menu screen MW1 is controlled. In addition, the controller 180 controls the depth value of the second menu screen MW2 such that the second menu screen MW2 protrudes from the first menu screen MW1. In this case, the controller 180 may control the display size of the second menu screen MW2 such that the first menu screen MW1 is superimposed on the back of the second menu screen MW2. That is, the second menu screen MW2 can be displayed smaller than the first menu screen MW1.

Referring to FIG. 13A, the controller 180 displays the first menu screen MW1 on the screen.

13 (b), the controller 180 switches from the first menu screen MW1 to the second menu screen MW2 so that the second menu screen MW2 is displayed on the first menu screen MW2, The depth value of the second menu screen MW2 is controlled so as to gradually protrude forward in the forward direction of the screen MW1.

13 (b), the first menu screen MW1 is fixed and the second menu screen MW2 is displayed so that the second menu screen MW2 gradually protrudes from the second menu screen MW2 MW2). Also in this case, the controller 180 may control the display size of the second menu screen MW2 such that the first menu screen MW1 is superimposed on the back of the second menu screen MW2.

On the other hand, when menu screens having different depth values are displayed in a superimposed manner, the controller 180 can switch the menu screen based on a flicking input or the like.

13, when the flicking input is received while the second menu screen MW2 is displayed on the first menu screen MW1 as shown in (b) of FIG. 13, The menu screen MW2 gradually moves back to the position of the first menu screen MW1 and the first menu screen MW1 is gradually projected to move to the position of the second menu screen MW2 Can be implemented.

The above-described method of controlling an electronic device according to the present invention can be provided by being recorded on a computer-readable recording medium as a program for execution on a computer.

The control method of the electronic device according to the present invention can be executed through software. When executed in software, the constituent means of the present invention are code segments that perform the necessary tasks. The program or code segments may be stored on a processor read functional medium or transmitted by a computer data signal coupled to a carrier wave in a transmission medium or communication network.

A computer-readable recording medium includes a recording device of a mode type in which data that can be read by a computer system is stored. Examples of the computer-readable recording device include a ROM, a RAM, a CD-ROM, a DVD ROM, a DVD-RAM, a magnetic tape, a floppy disk, a hard disk and an optical data storage device. Also, the computer-readable recording medium may be distributed over a network-connected computer device so that computer-readable code can be stored and executed in a distributed manner.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings, and all or some of the embodiments may be selectively combined so that various modifications may be made.

Claims (7)

A display module having a panel for implementing stereoscopic vision;
A plurality of cameras for acquiring an external image; And
A stereoscopic image is generated by synthesizing a plurality of images acquired through the plurality of cameras. When the auto focus function is performed while entering the stereoscopic image shooting mode, And a controller for varying the depth value of an indicator indicating an area to be subjected to the autofocus based on a depth value of the object in the stereoscopic image,
Wherein the control unit changes the depth value of the indicator by controlling a parallax between the indicators coupled to the respective images in the process of combining the indicators with each of the plurality of images.
The method according to claim 1,
Wherein the control unit obtains the depth value of the object to be autofocus based on the parallax between the objects to be autofocus included in each of the plurality of images.
delete The method according to claim 1,
Wherein the parallax between the indicators coupled to the respective images is determined by a position at which the indicator is coupled to the respective images.
The method according to claim 1,
Wherein the control unit displays at least one object displayed on the stereoscopic image shooting screen as a stereoscopic object when the stereoscopic image shooting mode is entered.
6. The method of claim 5,
Wherein the at least one object comprises a photographing button.
delete

Images