KR101666919B1 - 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 zoom state of the camera is changed, the electronic device varies the depth value of the stereoscopic image based on the changed zoom state.

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.

[Background Art] [0002] In recent years, there has been a tendency to provide a three-dimensional stereoscopic image in electronic devices. For this purpose, it is considered to improve a structural part and / or a software part of a terminal.

An object of the present invention is to provide an electronic device and a control method of an electronic device for enhancing user's convenience in generating a stereoscopic image.

An electronic apparatus according to an aspect of the present invention includes: a plurality of cameras for acquiring an external image; And

A controller for synthesizing a first image and a second image obtained through the plurality of cameras to generate a stereoscopic image and varying a depth value of the stereoscopic image based on a zoom state of the plurality of cameras, .

According to another aspect of the present invention, there is provided an electronic apparatus including: a plurality of cameras for acquiring an external image; And generating a stereoscopic image by synthesizing a first image and a second image obtained through the plurality of cameras, and when a distance between a plurality of points that are multi-touched on the touch screen is changed, And a control unit for varying the depth value.

According to another aspect of the present invention, there is provided an electronic device including: a touch screen; A plurality of cameras for acquiring an external image; And a second image obtained by combining the first image and the second image obtained through the plurality of cameras to generate a stereoscopic image, displaying a scroll object on the touch screen, and displaying the first image and the second image on the basis of the position of the scroll object, And a control unit for changing a synthesized position of the image.

According to still another aspect of the present invention, there is provided an electronic apparatus comprising: a display module; A plurality of cameras for acquiring an external image; And a third image obtained by combining at least one of the first image and the second image with the first image and the second image obtained through the plurality of cameras to generate a stereoscopic image, And a controller for changing the depth of the stereoscopic image based on the motion of the specific object selected in the third image.

According to another aspect of the present invention, there is provided a method of controlling an electronic device, comprising: generating a stereoscopic image by synthesizing a first image and a second image obtained through a plurality of cameras; And varying a depth value of the stereoscopic image based on a zoom state of the plurality of cameras.

According to another aspect of the present invention, there is provided a method of controlling an electronic device, comprising: generating a stereoscopic image by synthesizing a first image and a second image obtained through a plurality of cameras; And varying a depth value of the stereoscopic image based on a motion of a specific object selected from the stereoscopic image.

The electronic device and the control method of the electronic device according to the present invention have the effect of enhancing the user's convenience in generating the stereoscopic image.

1 is a block diagram of an electronic apparatus related to embodiments of the present invention.
2 and 3 are views for explaining a stereoscopic image displaying method using a binocular parallax according to embodiments of the present invention.
FIGS. 4 and 5 are diagrams showing an appearance of an electronic device related to embodiments 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 showing a control method of the electronic device 100 according to the first embodiment of the present invention.
FIG. 8 illustrates an example of displaying a preview image of a stereoscopic image on the screen of the electronic device 100 in the electronic device 100 according to the first embodiment of the present invention.
FIG. 9 illustrates an example of selecting a specific object from a preview image in the electronic device 100 according to the first embodiment of the present invention.
10 illustrates an example in which the depth value of the stereoscopic image is automatically changed as the zoom state of the cameras 121a and 121b is changed in the electronic device 100 according to the first embodiment of the present invention.
11 is a flowchart showing a control method of the electronic device 100 according to the second embodiment of the present invention.
12 illustrates an example of varying the depth value of a stereoscopic image based on a distance change between a plurality of points that are multi-touched in the electronic device 100 according to the second embodiment of the present invention.
13 is a flowchart showing a control method of the electronic device 100 according to the third embodiment of the present invention.
FIG. 14 shows an example of displaying a scroll object in the electronic device 100 according to the third embodiment of the present invention.
15 and 16 illustrate examples in which the depth value of the stereoscopic image is varied based on the position of the scroll object in the electronic device 100 according to the third embodiment of the present invention.
17 is a flowchart showing a control method of the electronic device 100 according to the fourth embodiment of the present invention.
18 shows an example of controlling the depth value of the stereoscopic image based on the motion of the object selected in the electronic device 100 according to the fourth 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 related to embodiments 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 embodiments of the present invention. FIG. 2 is a view illustrating a method of 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. Hereinafter, 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 views showing examples of the electronic device 100 related to the embodiments of the present invention. Fig. 4 shows an appearance of the case where the electronic device 100 is a digital camera, and Fig. 5 illustrates an appearance of the case where 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 binocular parallax using a plurality of cameras 121a and 121b in the electronic device 100 related to the embodiments of the present invention.

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.

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

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

7 is a flowchart showing a control method of the electronic device 100 according to the first embodiment of the present invention. 8 to 10 are diagrams for explaining a control method of the electronic device 100 according to the first embodiment of the present invention.

Referring to FIG. 7, the controller 180 receives a first image corresponding to a left eye image and a second image corresponding to a right eye image through a plurality of cameras 121a and 121b (S101). Then, a preview image is acquired through at least one camera among the plurality of cameras 121a and 121b, and the obtained preview image is displayed on the display area of the display module 151 (S102). Here, the preview image may be a first image input through the first camera 121a or a second image input through the second camera 121b. Also, the preview image may be an image obtained by overlapping the first image and the second image. When the preview image displayed in the display area is a composite image of the first image and the second image, it can be a preview image of the stereoscopic image generated by the electronic device 100.

FIG. 8 shows an example of displaying a preview image of a stereoscopic image on the screen of the electronic device 100. FIG.

8, the control unit 180 transmits the image 8 obtained by combining the first image input through the first camera 121a and the second image input through the second camera 121b to the display module 151 ) As a preview image. That is, the controller 180 displays the preview image on the screen of the electronic device 100 so that the user can confirm the stereoscopic image generated by the electronic device 100 in advance.

7, when a specific object included in the preview image is selected (S103) while the preview image is displayed on the screen, the controller 180 controls the depth value of the stereoscopic image based on the selected object (S104) . That is, the disparity between the first image and the second image used to generate the stereoscopic image is controlled based on the depth value in the stereoscopic image of the selected object. The parallax between the two images can be controlled by varying the convergence point of the two images.

FIG. 9 illustrates an example of selecting a specific object from the preview image shown in FIG.

Referring to FIG. 9, the control unit 180 displays the depth of the stereoscopic image 9a on the basis of the touched object 9a, as the area in which the specific object 9a is displayed is touched in the preview image 8 displayed on the touch screen 151, Control the value. That is, the depth value of the stereoscopic image is controlled such that the depth value of the selected object 9a in the stereoscopic image is a reference value, for example, "0 position". The control unit 180 controls the first camera 121a and the second camera 121b so as to vary the depth value of the stereoscopic image so that the depth value of the selected object 9a in the stereoscopic image is a desired value. And a second image input through the second image input unit.

In FIG. 9, an example is shown in which a user touches an area where a specific object 8a is displayed, thereby selecting an object serving as a reference for depth value control of the stereoscopic image. However, the present invention is not limited thereto. In the present invention, it is also possible that the control unit 180 extracts objects by analyzing images input through a plurality of cameras, and selects a specific object to be a reference for varying the depth value of the stereoscopic image among the extracted objects . In FIG. 9, the display module 151 is implemented as a touch screen. However, the present invention is not limited thereto.

7, the control unit 180 controls the depth value of the stereoscopic image based on the changed zoom state when the zoom states of the plurality of cameras 121a and 121b are changed (S105). That is, the parallax between the first image and the second image is controlled by varying the synthesized position of the first image and the second image (S106).

When the optical zoom state of the cameras 121a and 121b is changed by the control unit 180, the time difference between the plurality of cameras 121a and 121b, that is, the synthesized position between images, is changed. Therefore, the control unit 180 needs to compensate for the change of the composite position due to the zoom state change of the cameras 121a and 121b. To this end, the control unit 180 according to the first embodiment of the present invention acquires a changed combined position of the first image and the second image based on the changed zoom state when the zoom state of the cameras 121a and 121b is changed . Based on this, the change of the composite position due to the zoom state change is compensated. That is, the synthesized position of the first image and the second image is varied so that the depth value in the stereoscopic image of the object set as the reference value again becomes the reference value in step S104. Here, the reference value of the depth value in the stereoscopic image may be a value changed as the zoom state is changed. That is, it may be a value depending on the degree of zooming of the cameras 121a and 121b.

FIG. 10 shows an example of automatically varying the depth value of the stereoscopic image as the zoom state of the cameras 121a and 121b is changed.

10, a composite image of the first image and the second image is displayed as a preview image 8, and the depth value of the stereoscopic image is varied based on the specific object 8a selected in the preview image 8 S201). Thereafter, as the optical zoom state of the cameras 121a and 121b is changed, the combined position of the first image and the second image is changed, thereby changing the depth value of the stereoscopic image (S202). Accordingly, the control unit 180 adjusts the depth value of the stereoscopic image by controlling the combined position of the first and second images based on the changed zoom state (S203). That is, the composite position of the first image and the second image is varied such that the depth value of the object 8a in the stereoscopic image is a reference value suitable for the changed zoom state. Here, the reference value may be selected according to the degree of zooming of the cameras 121a and 121b.

Conventionally, when the optical zooming state of the cameras 121a and 121b for acquiring images used for stereoscopic image generation is changed during stereoscopic image shooting, the position where the left and right images are synthesized The depth value of the stereoscopic image needs to be set again by moving one pixel at a time. However, according to the first embodiment of the present invention described above, the electronic device 100 can automatically change the depth value of the stereoscopic image based on the changed zoom state when the zoom state is changed. Therefore, the convenience of the user is increased.

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

11 is a flowchart showing a control method of the electronic device 100 according to the second embodiment of the present invention. 12 is a diagram for explaining a control method of the electronic apparatus 100 according to the second embodiment of the present invention.

Referring to FIG. 11, the controller 180 receives a first image corresponding to a left eye image and a second image corresponding to a right eye image through a plurality of cameras 121a and 121b (S301). Then, the preview image is displayed on the display area of the display module 151 using the input first and second images (S302). That is, a preview image of a stereoscopic image is generated by superimposing and synthesizing a first image input through the first camera 121a and a second image input through the second camera 121b, Display it on the screen.

Thereafter, when the multi-touch input for a plurality of points in the display area is received (S303), the controller 180 determines whether the distances between the multi-touched points are changed (S304). To this end, the control unit 180 acquires the positions of the plurality of points to be multi-touched, and acquires distances between the plurality of points that are multi-touched based on the positions. Here, the multi-touch means a state in which the controller 180 receives touch input for at least two points in the display area. To receive the multi-touch input, the display module 151 according to the second embodiment of the present invention needs to be implemented with a touch screen.

When the distance between a plurality of points that are multi-touched is changed, that is, when a drag input starting from at least one point among a plurality of points that are multi-touched is received, the controller 180 adjusts the depth value of the stereoscopic image based on the changed distance (S305). That is, the synthesized position of the first image and the second image is varied to vary the depth value of the stereoscopic image to be large or small. As the depth value of the stereoscopic image is varied, the preview image displayed on the screen of the electronic device 100 through the display module 151 also has variable depth values. Accordingly, the user can intuitively confirm the depth value of the stereoscopic image variable through the multi-touch.

12 illustrates an example of varying the depth value of a stereoscopic image based on a distance change between a plurality of points that are multi-touched in the electronic device 100 according to the second embodiment of the present invention.

Referring to FIG. 12, the controller 180 displays a stereoscopic image obtained by synthesizing the first and second images on the touch screen 151 as a preview image 12. Thereafter, the control unit 180 receives a drag input starting from at least one of a plurality of multi-touched points in a state where the touch screen 151 is multi-touched. For example, a drag input using at least one finger among multi-touched fingers of a display area is received (S401). Accordingly, the control unit 180 continuously acquires the positions of the plurality of points to be multi-touched, and calculates a distance change between a plurality of points that are multi-touched using the positions. The depth value of the stereoscopic image is varied on the basis of the changed distance between the plurality of points that are multi-touched. That is, the synthesized positions of the first and second images used for stereoscopic image generation are varied (S402).

According to the second embodiment of the present invention, when the user desires to vary the depth value of the stereoscopic image, the user sets the depth value of the stereoscopic image to a desired value only by moving the touched finger by multi-touching the display area It is possible. Therefore, conventionally, there is an effect that user convenience is improved as compared with the method of setting the depth value of the stereoscopic image while changing the synthesized position by one pixel through button operation.

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

13 is a flowchart showing a control method of the electronic device 100 according to the third embodiment of the present invention. 14 to 16 are diagrams for explaining a control method of the electronic device 100 according to the third embodiment of the present invention.

Referring to FIG. 13, the controller 180 receives a first image corresponding to a left eye image and a second image corresponding to a right eye image through a plurality of cameras 121a and 121b (S501). Then, the preview image is displayed on the display area of the display module 151 using the input first and second images (S502). That is, a preview image of a stereoscopic image is generated by superimposing and synthesizing a first image input through the first camera 121a and a second image input through the second camera 121b, Display it on the screen. In the third embodiment of the present invention, the display module 151 is implemented as a touch screen.

The controller 180 also displays the scroll object over the preview image (S503). Here, when the state of the electronic device 100 becomes a specific state, for example, the control unit 180 may display the scroll object automatically when the preview image is displayed, or may display the scroll object through the user input unit 130 It may also display a scroll object if requested. A scroll object includes a scroll bar and the like.

Fig. 14 shows an example of displaying a scroll object.

Referring to FIG. 14, the controller 180 displays the combined image of the first and second images on the touch screen 151 as a preview image 14. A scroll region 14a indicating a range in which the synthesized position of the first image and the second image is variable and a scroll object 14b indicating a synthesized position of the first image and the second image are displayed on the touch screen 151 Display. That is, a scroll area 14a indicating a range in which the depth value of the stereoscopic image can be varied and a scroll object 14b indicating the depth value of the current stereoscopic image are displayed on the touch screen. Here, the position of the scroll object may be displayed based on the specific object 14c selected in the preview image. For example, when the depth value of the selected object 14c in the preview image 14 is a reference value, for example, " 0 position " As shown in FIG. The depth value of the stereoscopic image can be displayed using a scroll object based on the depth value of the selected object 14c set as the reference value.

13, when the position of the scroll object is changed through a drag input or the like (S504), the controller 180 changes the depth value of the stereoscopic image based on the position of the changed scroll object (S505). That is, the synthesized position of the first image and the second image is varied to vary the depth value of the stereoscopic image to be large or small. As the depth value of the stereoscopic image is varied, the preview image displayed on the screen of the electronic device 100 through the display module 151 also has variable depth values. Accordingly, the user can intuitively confirm the depth value of the stereoscopic image variable through the multi-touch.

15 and 16 illustrate examples in which the depth value of the stereoscopic image is varied based on the position of the scroll object.

15A shows a state in which the scroll object 14c is scrolled in the direction of the 'Near' button 14d by the user. 15B illustrates an example in which the stereoscopic effect of the stereoscopic image is changed as the scroll object 14c is scrolled as shown in FIG. 15A. 16A shows a state in which the scroll object 14c is scrolled in the direction of the 'Far' button 14e by the user. 16B shows an example in which the stereoscopic effect of the stereoscopic image is changed as the scroll object 14c is scrolled as shown in FIG. 16A.

Referring to FIG. 15, as the scroll object 14c approaches the 'Near' button 14d, the composite position moves further forward. Also, the depth value of the stereoscopic image is varied so that the stereoscopic effect appears as if the object in the stereoscopic image is gradually backward with respect to the display surface 15a of the electronic device 100 on which the image is displayed.

Referring to FIG. 16, as the scroll object 14c approaches the 'Far' button 14e, the composite position moves further forward. In addition, the depth value of the stereoscopic image is varied so that a stereoscopic effect such that an object in a stereoscopic image gradually protrudes from the display surface 15a of the electronic device 100 on which the image is displayed.

According to the third embodiment of the present invention, when the user desires to vary the depth value of the stereoscopic image, the depth value of the stereoscopic image can be set to a desired value only by scrolling the scroll bar. Therefore, conventionally, there is an effect that user convenience is improved as compared with the method of setting the depth value of the stereoscopic image while changing the synthesized position by one pixel through button operation.

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

17 is a flowchart showing a control method of the electronic device 100 according to the fourth embodiment of the present invention. 18 is a diagram for explaining a control method of the electronic device 100 according to the fourth embodiment of the present invention.

Referring to FIG. 17, the controller 180 receives a first image corresponding to a left eye image and a second image corresponding to a right eye image through a plurality of cameras 121a and 121b (S601). Then, a preview image is acquired through at least one camera among the plurality of cameras 121a and 121b, and the obtained preview image is displayed on the display area of the display module 151 (S602). Here, the preview image may be a first image input through the first camera 121a or a second image input through the second camera 121b. Also, the preview image may be an image obtained by overlapping the first image and the second image. When the preview image displayed in the display area is a composite image of the first image and the second image, it can be a preview image of the stereoscopic image generated by the electronic device 100.

If a specific object included in the preview image is selected in the state that the preview image is displayed on the screen (S603), the controller 180 controls the depth value of the stereoscopic image on the basis of the selected object (S604). Here, the method of controlling the depth value of the stereoscopic image based on the selected object is performed in the same manner as the method of varying the depth value of the stereoscopic image based on the object selected in the first embodiment of the present invention, .

Then, the control unit 180 continuously acquires the motion of the selected object through image recognition. If the depth value of the selected object is changed according to the movement of the selected object (S605), the depth value of the stereoscopic image is controlled on the basis of the selected object (S604). That is, the depth value of the stereoscopic image is changed again so that the depth value in the stereoscopic image of the selected object becomes the reference value.

FIG. 18 shows an example of controlling the depth value of the stereoscopic image based on the motion of the selected object.

Referring to FIG. 18, the first object 18a is selected in the preview image 18 (S701). Accordingly, the controller 180 varies the depth value of the stereoscopic image based on the first object 18a. That is, the total depth value of the stereoscopic image is controlled such that the depth value of the first object 18a in the stereoscopic image is a reference value, for example, "0 position". In this state, since the second object 18b is located behind the first object 18a, a three-dimensional effect is generated so as to appear further backward than the "0 position".

Thereafter, as the first object 18a moves, the depth value of the first object 18a is changed (S702). Accordingly, the controller 180 resets the depth value of the stereoscopic image based on the first object 18a. In this state, since the second object 18b is located in front of the first object 18a, a three-dimensional appearance that appears to protrude forward from the "0 position" occurs.

According to the fourth exemplary embodiment of the present invention, when the object selected as the reference moves, the electronic device 100 automatically changes the depth value of the stereoscopic image based on the movement of the object. Accordingly, when the object moves, the user does not need to set the depth value of the stereoscopic image again through the button operation or the like, thereby improving the user's convenience.

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 with 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 (20)

touch screen;
A plurality of cameras for acquiring an external image; And
A stereoscopic image synthesizing unit synthesizing a first image and a second image obtained through the plurality of cameras to generate a stereoscopic image, displaying a preview image of the stereoscopic image on the touch screen, receiving an input for selecting a specific object in the preview image A depth value of the stereoscopic image is changed so that a depth value of the specific object is a reference value, a preview image is displayed according to the variable depth value, and a zoom state of the plurality of cameras is changed A depth value of the stereoscopic image is corrected so that the depth value of the specific object is restored to the reference value when the depth value of the specific object is changed according to the depth value of the stereoscopic image,
.
The method according to claim 1,
Wherein the control unit varies the combined position of the first image and the second image to vary the depth value of the stereoscopic image.
delete delete The method according to claim 1,
Wherein the control unit selects the specific object based on a point touched on the touch screen.
delete delete The method according to claim 1,
Wherein the zoom states of the plurality of cameras are optical zoom states of the plurality of cameras.
touch screen;
A plurality of cameras for acquiring an external image; And
A stereoscopic image display method comprising: generating a stereoscopic image by synthesizing a first image and a second image obtained through the plurality of cameras; displaying a preview image of the stereoscopic image on the touch screen; A controller for changing a depth value of the stereoscopic image based on the changed distance and displaying a preview image according to the variable depth value,
Lt; / RTI >
Wherein a distance between the plurality of multi-touch points corresponds to a depth value of the stereoscopic image,
Wherein the control unit increases the depth value when the distance between the plurality of points is increased and decreases the depth value when the distance between the plurality of points is close to each other.
10. The method of claim 9,
Wherein the control unit varies the combined position of the first image and the second image to vary the depth value of the stereoscopic image.
delete touch screen;
A plurality of cameras for acquiring an external image; And
A stereoscopic image is generated by synthesizing a first image and a second image obtained through the plurality of cameras, a preview image of the stereoscopic image is displayed on the touch screen, a scroll region and a scroll object are displayed on the touch screen A control unit for varying a synthesized position of the first image and the second image based on the position of the scroll object in the scroll area and displaying a preview image according to the variable depth value,
Lt; / RTI >
Wherein the scroll region corresponds to a range of depth values of the stereoscopic image, and the position of the scroll object corresponds to a depth value of the stereoscopic image.
delete touch screen;
A plurality of cameras for acquiring an external image; And
A stereoscopic image display method comprising: generating a stereoscopic image by synthesizing a first image and a second image obtained through the plurality of cameras, displaying a preview image of the stereoscopic image on the touch screen, selecting a specific object at a first position A depth value of the stereoscopic image is changed so that a depth value of the specific object becomes a reference value, a preview image is displayed according to the variable depth value, When the depth value of the specific object is changed according to the movement from the second position to the second position, the depth value of the stereoscopic image is varied so that the depth value of the specific object at the second position becomes the reference value
.
delete delete delete 15. The method of claim 14,
Wherein the control unit varies the combined position of the first image and the second image to vary the depth value of the stereoscopic image.
Generating a stereoscopic image by synthesizing a first image and a second image obtained through a plurality of cameras;
Displaying a preview image of the stereoscopic image on a touch screen;
Changing a depth value of the stereoscopic image so that a depth value of the specific object is a reference value when an input for selecting a specific object is received from the preview image;
Displaying a preview image according to the variable depth value; And
Correcting the depth value of the stereoscopic image so that the depth value of the specific object is restored to the reference value when the depth value of the specific object is changed as the zoom state of the plurality of cameras is changed
And controlling the electronic device.
Generating a stereoscopic image by synthesizing a first image and a second image obtained through a plurality of cameras;
Displaying a preview image of the stereoscopic image on a touch screen;
Changing a depth value of the stereoscopic image so that a depth value of the specific object is a reference value when an input for selecting a specific object is received from the preview image;
Displaying a preview image according to the variable depth value; And
When the depth value of the specific object changes as the specific object moves from the first position to the second position, the depth value of the stereoscopic image is varied so that the depth value of the specific object at the second position becomes the reference value Step
And controlling the electronic device.

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