KR101882263B1 - Mobile terminal and method for controlling thereof - Google Patents

Abstract

The present invention provides a mobile terminal capable of synchronizing and synthesizing a plurality of right eye images and a left eye image obtained continuously and providing them to a user as a three-dimensional stereoscopic image in a binocular parallax system, and a control method thereof. A mobile terminal according to an exemplary embodiment of the present invention includes a camera for successively acquiring a plurality of right eye images and left eye images according to a predetermined distance interval, a plurality of right eye images obtained through the camera, dimensional stereoscopic image by synthesizing a plurality of right eye images and a left eye image in synchronization with each other and generating a source image of the three-dimensional stereoscopic image by using a stereo scopic method, And a display unit including parallax generating means for outputting the three-dimensional image as a three-dimensional stereoscopic image.

Description

[0001] MOBILE TERMINAL AND METHOD FOR CONTROLLING THEREOF [0002]

The present invention relates to a mobile terminal capable of displaying a plurality of consecutively obtained right-eye images and left-eye images combined with a three-dimensional stereoscopic spatial image of a binocular parallax system, and a control method thereof.

Recently, image display devices in the form of terminals have been increasing. Such a terminal can be divided into a mobile terminal (mobile / portable terminal) and a stationary terminal according to whether the terminal can be moved or not. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

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

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

Recently, stereo stereoscopic 3D stereoscopic images have been implemented through a display unit of a mobile terminal. In order to realize such a three-dimensional stereoscopic image, it is required that the source content for the left eye image and the right eye image, that is, the three-dimensional stereoscopic image output, be prepared.

The user may prefer to display a plurality of right-eye images and left-eye images acquired in accordance with the preference by synthesizing them into a three-dimensional spatial stereoscopic image of a binocular parallax system, so that more convenient manipulation methods through the 3D user interface are required .

The present invention provides a mobile terminal and a control method thereof that can synchronize and synthesize a plurality of consecutively obtained right eye images and left eye images to provide a three-dimensional stereoscopic spatial image of a binocular disparity method to a user.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

According to an aspect of the present invention, there is provided a mobile terminal including a camera for successively acquiring a plurality of right-eye images and left-eye images in accordance with predetermined distance intervals, a plurality of right- Dimensional stereoscopic image by synchronizing the synchronization of each of the left eye image and the right eye image and synthesizing a plurality of right eye images and left eye images having the same synchronism to generate a source image of the three- And a display unit having a parallax generating unit for outputting a stereoscopic 3D stereoscopic image.

In addition, the controller may control the first visual effect for indicating the predetermined distance interval to be displayed in a predetermined area of the display unit.

In addition, the controller may control to display a second visual effect for informing the direction in which the mobile terminal is to be moved so as to successively acquire the plurality of right eye images and left eye images.

In addition, the first visual effect and the second visual effect may include at least one of a color change, a sharpness change, and a transparency change.

The control unit may further include a wireless communication unit, and the control unit may control to receive at least a part of the plurality of right eye images and left eye images from an external device through the wireless communication unit.

Also, the display unit may be a touch screen, and the controller may control the stereoscopic stereoscopic image to be rotated and output in response to a touch input on the touch screen.

The stereoscopic 3D stereoscopic image may be zoomed in or out (Zoom-in) or zoom-out (Zoom-in) when a touch of a predetermined pattern is input through the touch screen, -out) to be output.

The stereoscopic stereoscopic stereoscopic image may be rotated while the tilt of the mobile terminal is sensed through the sensing unit by sensing a tilt of the mobile terminal, And the like.

In addition, the controller may control the direction and speed of the rotation to be changed corresponding to the inclination.

According to an aspect of the present invention, there is provided a method of controlling a mobile terminal, the method comprising: continuously acquiring a plurality of right eye images and left eye images according to predetermined distance intervals using a camera; A step of generating a source image of a 3D stereoscopic image by synthesizing a synchronization of each of a right eye image and a left eye image, synthesizing a plurality of right eye images and a left eye image which are synchronized with each other, And outputting the source image as a three-dimensional stereoscopic image in a stereo scopic manner.

The method of claim 1, further comprising displaying a first visual effect and a second visual effect, wherein the first visual effect informs the predetermined distance interval, and the second visual effect includes a plurality of right eye images and left eye images The mobile terminal can notify the direction in which the mobile terminal is to be moved.

Also, in response to the touch input on the touch screen, the stereoscopic stereoscopic three-dimensional image can be rotated and output.

In addition, when a touch of a predetermined pattern is inputted through the touch screen, the stereoscopic stereoscopic three-dimensional image can be zoomed in or zoomed out.

Also, while the inclination of the mobile terminal is sensed through the sensing unit, the stereoscopic stereoscopic three-dimensional image may be rotated and output.

Through the image display apparatus according to at least one embodiment of the present invention configured as described above, the user can view a plurality of consecutively obtained right-eye images and left-eye images as a binocular parallax three-dimensional stereoscopic image ..

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a front perspective view of a mobile terminal according to an embodiment of the present invention.
3 is a conceptual diagram for explaining the principle of binocular disparity.
4 is a conceptual diagram for explaining the distance sense and the three-dimensional depth due to the binocular parallax.
5 is a view for explaining the principle of a 3D stereoscopic image display method using a related binocular parallax which can be applied to embodiments of the present invention.
FIG. 6 is a flowchart illustrating an example of generating a three-dimensional image by synchronizing and synthesizing a plurality of consecutively obtained images according to an exemplary embodiment of the present invention.
FIG. 7 is a diagram illustrating an example of generating a three-dimensional image by synchronizing and synthesizing a plurality of consecutively obtained images according to an exemplary embodiment of the present invention. Referring to FIG.
8 is a diagram illustrating an example of displaying a plurality of visual effects for successively acquiring a right eye image and a left eye image according to an embodiment of the present invention.
9 is a view illustrating an example of displaying a generated three-dimensional stereoscopic image according to an embodiment of the present invention.
10 is a diagram illustrating an example of three-dimensional stereoscopic images generated in accordance with an embodiment of the present invention by three-dimensionally rotating the stereoscopic images.
11 is a diagram illustrating an example of three-dimensionally zooming in / zooming out three-dimensional stereoscopic images generated according to an embodiment of the present invention.
12 is a diagram illustrating an example of three-dimensional stereoscopic images generated in response to a tilt of a mobile terminal and displayed by three-dimensionally rotating according to an embodiment of the present invention.

Hereinafter, a video display device according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

It is assumed that the video display device described in this specification is a mobile terminal. Such a mobile terminal may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital media player, and the like, will be.

Overall configuration

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

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

Hereinafter, the components will be described in order.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating an output relating to visual, auditory or tactile sense and includes a display unit 151, an acoustic output module 152, an alarm unit 153, a haptic module 154, 155), and the like.

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

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

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

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

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

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

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

The proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

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

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

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

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

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

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

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

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

The projector module 155 is a component for performing an image project function using the mobile terminal 100 and is similar to the image displayed on the display unit 151 in accordance with a control signal of the controller 180 Or at least partly display another image on an external screen or wall.

Specifically, the projector module 155 includes a light source (not shown) that generates light (for example, laser light) for outputting an image to the outside, a light source And a lens (not shown) for enlarging and outputting the image at a predetermined focal distance to the outside. Further, the projector module 155 may include a device (not shown) capable of mechanically moving the lens or the entire module to adjust the image projection direction.

The projector module 155 can be divided into a CRT (Cathode Ray Tube) module, an LCD (Liquid Crystal Display) module and a DLP (Digital Light Processing) module according to the type of the display means. In particular, the DLP module may be advantageous for miniaturization of the projector module 151 by enlarging and projecting an image generated by reflecting light generated from a light source on a DMD (Digital Micromirror Device) chip.

Preferably, the projector module 155 may be provided longitudinally on the side, front or back side of the mobile terminal 100. It goes without saying that the projector module 155 may be provided at any position of the mobile terminal 100 as occasion demands.

The memory unit 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, For example. The memory unit 160 may also store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia). In addition, the memory unit 160 may store data on vibration and sound of various patterns output when the touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

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

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

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

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 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 a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

Organization description

FIG. 2 is a perspective view of a mobile terminal or a portable terminal according to the present invention, as viewed from the front.

The disclosed mobile terminal 100 has a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

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

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

The display unit 151, the sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the front body 101 have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the portable terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

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

Implementation of 3D image

Hereinafter, a three-dimensional image display method of a mobile terminal and a structure of a display unit therefor, which can be applied to embodiments of the present invention, will be described.

The stereoscopic image implemented on the display unit 151 of the mobile terminal can be roughly divided into two categories. The criterion for this classification is whether or not different images are provided in both eyes.

First, we describe the first stereoscopic image category.

The first category is monoscopic in that the same image is provided in both eyes, which is advantageous in that it can be implemented as a general display unit. More specifically, the control unit 180 arranges (or renders) at least one polyhedron generated through one or more points, lines, faces, or a combination thereof on a virtual three-dimensional space, and displays And displayed on the display unit 151. [ Therefore, the substantial part of such a stereoscopic image can be referred to as a planar image.

The second category is a stereo scopic method in which different images are provided in both eyes. It is a method using a principle of feeling a three-dimensional feeling when a human is looking at an object with the naked eye. In other words, the two eyes of a person see different plane images when they see the same thing by the distance between them. These different planar images are transmitted to the brain through the retina, and the brain fuses them to feel the depth and reality of the stereoscopic image. Therefore, binocular disparity due to the distance between the two eyes makes a three-dimensional feeling, although there is a slight difference for each person, and such binocular disparity becomes the most important element of the stereoscopic method. This binocular disparity will be described in more detail with reference to Fig.

3 is a conceptual diagram for explaining the principle of binocular disparity.

In FIG. 3, it is assumed that the hexahedron 310 is placed in front of the eye lower than eye level, and the eye is viewed. In this case, a left-eye plane image 320 in which only the top, front, and left sides of the hexahedron 310 are visible in the left eye. In addition, a right-eye plane image 330 showing only the top, front, and right sides of the hexahedron 310 can be seen in the right eye.

If the left eye plane image 320 is provided in the left eye and the right eye plane image 330 in the right eye is reached, the person can feel as if he or she actually looks at the cubic body 310 even if the object is not in front of the actual eye.

As a result, in order for the stereoscopic image of the second category to be implemented in the mobile terminal, the left eye image and the right eye image, which are viewed with a predetermined time difference, should be distinguished from each other through the display unit to reach both eyes.

In this specification, the stereoscopic image of the first category is referred to as a "2D stereoscopic image" or the "plane 3D rendering image ", and the stereoscopic image of the second category is referred to as" 3D stereoscopic image "

Next, referring to Fig. 4, the three-dimensional depth due to binocular parallax will be described.

4 is a conceptual diagram for explaining the distance sense and the three-dimensional depth due to the binocular parallax.

Referring to FIG. 4, when the hexahedron 400 is viewed at a distance d1 through both eyes, the lateral specific gravity of the image coming into each eye is relatively higher than when viewing the hexahedron 400 at the d2 distance, The difference becomes large. Also, the degree of three-dimensional sensation experienced by a person when viewing the hexahedron 400 at a distance d1 is greater than when viewing the hexahedron 400 at a distance d2. In other words, when a person looks at an object through both eyes, the closer to the object, the greater the three-dimensional feeling, and the farther the object, the less the three-dimensional feeling.

This difference in three-dimensional feeling can be quantified into three-dimensional depth (3D depth) or three-dimensional level (3D level). Hereinafter, in the present specification, a high dimensional sensation of a nearby object is expressed as a low three dimensional depth and a low three dimensional level, and a low dimensional sensation of a far away object is expressed as a high three dimensional depth and a high three dimensional level. The definitions of these three-dimensional depths or three-dimensional levels are relative, and the classification criteria and the direction of increase / decrease can be changed.

Next, an implementation method of the 3D stereoscopic image will be described.

As described above, in order to realize a 3D stereoscopic image, it is necessary that the right eye image and the left eye image are divided into two and reach the binocular. The parallax barrier method for this purpose will be described below.

The parallax barrier method is a method of controlling the traveling direction of light by electrically controlling a blocking device provided between a display unit and a binocular to allow different images to be reached in both eyes.

This will be described with reference to FIG.

5 is a view for explaining the principle of a three-dimensional image display method using binocular parallax according to an embodiment of the present invention.

As shown in FIG. 5, in order to display a 3D stereoscopic image in FIG. 5, the display unit 151 includes a display panel and a switching panel attached to the upper surface thereof. The switching panel may be electrically controlled to block or pass a portion of the light reaching the binocular from the display panel. Here, the display panel may be constituted by general display devices such as an LCD, an LED, and an AMOLED.

In FIG. 5, "b" represents barrier spacing of the switching panel, "g" represents the distance between the switching panel and the display panel, and "z" represents the distance from the viewer's viewing position to the display panel. As shown in FIG. 5, when two images are synthesized in units of pixels (L, R), the time of the right eye is the pixel included in the right image and the time of the left eye is corresponded to the pixel included in the left image An incoming switching panel can be operated.

When the switching panel is intended to display a 3D stereoscopic image, the switching panel can be turned on to separate the incident time. In addition, when a two-dimensional image is to be displayed, the switching panel is turned off and the incident time can be passed without being separated. Therefore, when the switching panel is turned off, binocular parallax is not separated. Such a switching panel method is advantageous in that the user can enjoy 3D stereoscopic images without having to wear glasses which are separately polarized or actuated as an active shutter since the switching between 2D and 3D is easy.

5 illustrates that the parallax barrier operates in one axial direction. However, the present invention is not limited thereto, and a parallax barrier that can operate in two or more axial directions according to a control signal of the controller 180 may be used.

For convenience of explanation, it is assumed that the image display device mentioned below includes at least one of the components shown in FIG. In particular, the mobile terminal to which the present invention is applicable includes a display unit that can selectively provide a 3D stereoscopic image to a user through the 3D parallax barrier method.

On the other hand, the user may prefer to display a plurality of right-eye images and left-eye images acquired according to the preferences in a synthesized three-dimensional stereoscopic spatial image of the binocular parallax system.

In the case of a two-dimensional image, a two-dimensional image continuously photographed horizontally or vertically was synthesized, so that more images and scenes could be contained in one image.

However, since the convergence points are different for each scene and the spatial sensations thereof are different from each other, it is possible to use the existing image There is a problem that it is difficult to synthesize and display the above-described three-dimensional stereoscopic images in a synthesizing method.

Accordingly, in the present invention, a plurality of right eye images and left eye images are obtained at predetermined intervals, and a three-dimensional stereo image is generated by synthesizing and combining the obtained images, and the generated three- To the user.

Hereinafter, in order to distinguish between a general three-dimensional image and a three-dimensional image generated according to the present invention, a three-dimensional image generated according to the present invention is referred to as a three-dimensional space image.

Specific details of the present invention will be described with reference to Fig.

FIG. 6 is a flowchart illustrating an example of generating a stereoscopic image by synchronizing and synthesizing a plurality of consecutively obtained images according to an exemplary embodiment of the present invention. Referring to FIG.

First, a plurality of right eye images and left eye images may be acquired at predetermined intervals (S610).

The predetermined interval refers to a minimum interval (for example, 10M) required to display each image included on the stereoscopic image. The predetermined interval may be specified at the time of manufacturing the terminal or may be arbitrarily adjusted by the user.

To help the user obtain a plurality of images at predetermined intervals, a separate visual effect may be displayed on the display, which will be described in more detail below with reference to FIG.

As the number of right eye images and left eye images obtained increases, a wider range of three-dimensional space images can be generated.

In this case, when the user designates the size of the stereoscopic image to be generated, the control unit 180 may calculate the number of the right eye image and the left eye image, and provide the calculated value to the user. For example, the controller 180 may display information indicating that 30 right-eye images and left-eye images are required at a predetermined interval of 10M through a display unit in order to generate a stereoscopic image designated by the user.

Meanwhile, the control unit 180 may control the mobile terminal to acquire the right eye image and the left eye image through an external device. That is, the apparatus may receive the right eye image and the left eye image from at least one external device through the wireless communication unit 110 using near-field communication or wireless communication, and may use the right eye image and the left eye image to generate a stereoscopic image, which will be described later.

Next, when a plurality of right eye images and left eye images are successively acquired, the controller 180 synchronizes the acquired images and synthesizes them to generate a stereoscopic image (S620).

That is, by synchronizing the respective images included in a certain range of space and compositing them into a three-dimensional space, it is possible to generate a spatial panorama image having a depth from the constraint of the existing two-dimensional image .

When the stereoscopic spatial image is generated, the control unit 180 provides the stereoscopic spatial image to the user through the display unit (S630).

Through such three-dimensional spatial images, the user can receive vivid scene information as if they are viewed in real sight.

Furthermore, the provided stereoscopic spatial image is rotated or zoomed in / out according to a menu operation of a user or a touch input of a specific pattern, thereby providing a stereoscopic user interface as compared with an existing method can do. A detailed description thereof will be given later with reference to Figs. 9 to 12.

Hereinafter, a process of generating a stereoscopic image by acquiring a plurality of right eye images and a left eye image at predetermined intervals and a process of providing the generated stereoscopic spatial image to a user through a display unit will be described in detail with reference to the drawings .

Specifically, a process of acquiring a plurality of images to generate a three-dimensional space image will be described with reference to FIGS. 7 and 8. Referring to FIGS. 9 to 12, the generated three-dimensional space image is provided to a user through a display unit Describe the process.

FIG. 7 is a diagram illustrating an example of generating a three-dimensional image by synchronizing and synthesizing a plurality of consecutively obtained images according to an exemplary embodiment of the present invention. Referring to FIG.

It is assumed that the predetermined interval in FIG. 7 is 10M.

Referring to FIG. 7, a plurality of right eye images 710, 720 and 730 are obtained at predetermined intervals.

At this time, although not shown, when the size of the stereoscopic image to be generated by the user is designated, information indicating that the number of required right eye images and left eye images is three can be displayed through the display unit.

When the three right eye images and the left eye images 710, 720 and 730 are successively acquired, the controller 180 synchronizes and synthesizes the acquired images to obtain a spatial panorama image having a depth Dimensional space image 740, which is a three-dimensional space image.

Unlike the conventional two-dimensional image, the generated stereoscopic spatial image 740 provides each of the panoramic images as a three-dimensional image, so that the user can receive vivid scene information that is viewed as a real sight.

8 is a diagram illustrating an example of displaying a visual effect for easily acquiring a plurality of right eye images and left eye images continuously in accordance with an embodiment of the present invention.

In order to easily acquire a plurality of images at predetermined intervals, a separate visual effect may be displayed.

Referring to FIG. 8, a first frame visual effect 810 for photographing the first right eye image and the left eye image may be displayed. The user adjusts the entire screen of the display unit to coincide with the first frame visual effect 810 to obtain the first right eye image and the left eye image.

The control unit 180 may further display a second frame visual effect 820 for capturing the second right eye image and the left eye image according to the predetermined interval. After acquiring the first right eye image and the left eye image, the user can adjust the entire screen of the display unit to coincide with the second frame visual effect 820 to acquire the second right eye image and the left eye image.

Additional frame visualizations may be further displayed in a predetermined area on the display portion to obtain additional right-eye and left-eye images that are not shown, but are additionally required.

Furthermore, for convenience of the user, a direction visual effect 830 may be displayed that displays information about the direction the user must move.

Accordingly, the user can easily acquire a plurality of right eye images and left eye images continuously at predetermined intervals.

Next, a process of providing the generated stereoscopic spatial image to the user through the display unit will be described with reference to FIGS. 9 to 12. FIG.

9 is a view illustrating an example of displaying a generated three-dimensional stereoscopic image according to an embodiment of the present invention.

When the stereoscopic spatial image is generated, the control unit 180 provides the stereoscopic spatial image 920 to the user through the display unit.

In addition, a separate visual effect may be displayed on a predetermined area of the display unit to indicate to the user that the stereoscopic spatial image 920 is provided.

The predetermined visual effect may include at least one of color change, sharpness change, and transparency change

Referring to FIG. 9, a visual effect 910 for indicating that a stereoscopic image 920 is provided is displayed on a predetermined upper right region of the display unit.

In addition, the provided stereoscopic spatial image is rotated or zoomed in / out according to a menu operation of a user or a touch input of a specific pattern, thereby providing a stereoscopic user interface in comparison with an existing method .

10 is a diagram illustrating an example of three-dimensional stereoscopic images generated in accordance with an embodiment of the present invention by three-dimensionally rotating the stereoscopic images.

Referring to FIG. 10, the user can control the stereoscopic image to be rotated (1020) by displaying the stereoscopic image by dragging the provided stereoscopic image to the left or right side 1010.

In FIG. 10, only the example in which the user inputs the left and right drag is described. However, this is merely an example, and the stereoscopic image may be rotated corresponding to the up and down drag. Further, the three-dimensional space may be rotated / changed corresponding to the dragging in the up, down, left, and right directions.

FIG. 11 is a diagram showing an example of zooming in / zooming out three-dimensionally generated three-dimensional space images according to an embodiment of the present invention.

Since the generated three-dimensional stereoscopic image includes each stereoscopic image, the generated stereoscopic image can be zoomed in / out in a stereoscopic manner to provide the corresponding image to a user.

In other words, unlike the conventional two-dimensional image, a three-dimensional zoom-in / zoom-out image is provided to a user instead of a plane zoom-in / zoom-out image .

For example, when a user zooms in on a first portion of a three-dimensional space image, the first portion is enlarged to a predetermined size as a three-dimensional image rather than a two-dimensional image, and is displayed on the screen. Accordingly, the user can obtain the same effect as viewing the first portion in the actual field of view, and can acquire more accurate information compared with the prior art.

Such a zoom-in / zoom-out function can be provided to the user only when a specific pattern of touch is input.

A touch input of a specific pattern includes a touch, a long touch, a double touch, a proximity touch, a touch drag, and a flicking.

In FIG. 11, it is assumed that a double touch is designated by touch input of a specific pattern.

11, when the user double-touches a part of the three-dimensional space image, the controller 180 displays the zoomed-in image 1120 corresponding to the double- to provide.

Although only the zoomed-in image is shown in FIG. 11, a zoomed-out image may be provided to the user.

12 is a diagram illustrating an example of three-dimensional stereoscopic images generated in response to a tilt of a mobile terminal and displayed by three-dimensionally rotating according to an embodiment of the present invention.

That is, the controller 180 may rotate the three-dimensional stereoscopic image generated in response to the tilt of the mobile terminal sensed through the sensing unit 140, and provide the rotated stereoscopic image to the user. A gyro sensor may be used to sense the tilt of the mobile terminal.

At this time, the controller 180 can adjust the speed at which the three-dimensional stereoscopic image is three-dimensionally rotated corresponding to the tilt. E.g. The larger the slope, the faster the three-dimensional stereoscopic image can be displayed to the user.

Also. If the tilt of the mobile terminal 100 is not detected by the sensing unit 140, the controller 180 may stop the rotation and provide the corresponding image to the user.

12, the user rotates the 3D stereoscopic image in the left direction 1220 by tilting the mobile terminal 100 at a predetermined angle 1210. [

In FIG. 12, although the three-dimensional stereoscopic image is rotated to the left, this is merely an example, and it is possible to rotate in the right, upper, and lower directions as well.

Further, when increasing the angle at which the user tilts, the rotation speed of the three-dimensional stereoscopic image is further increased. Therefore, through the change of the stereoscopic image, the user can receive vivid scene information as if it is viewed in the actual view.

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

The above-described mobile terminal and its control method are not limited to the configuration and method of the above-described embodiments, but the embodiments may be modified such that all or some of the embodiments are selectively And may be configured in combination.

Claims (15)

A camera for successively acquiring a plurality of right eye images and left eye images according to a predetermined distance interval;
A plurality of right eye images and a left eye image which are synchronized with each other are synchronized with each other and synchronized with each other, ; And
And a display unit having a parallax generator for outputting the generated source image as a stereo scopic stereoscopic image,
Wherein,
Dimensional stereoscopic image is displayed on the display unit when the distance interval and the size of the three-dimensional stereoscopic image are designated by the user, And displaying information indicating the direction in which the mobile terminal should be moved to successively acquire the plurality of right eye images and the left eye image, Mobile terminal. delete delete delete The method according to claim 1,
Wherein the three-dimensional stereoscopic image includes a cube spatial image. The method according to claim 1,
Wherein the display unit includes a touch screen,
Wherein the controller controls the stereoscopic stereoscopic image to be rotated and displayed in response to a touch input on the touch screen. The method according to claim 1,
Wherein the display unit includes a touch screen,
The stereoscopic stereoscopic 3D stereoscopic image may be displayed in a zoom-in or zoom-out manner when a touch of a preset pattern is inputted through the touch screen, Lt; / RTI > The method according to claim 1,
And a sensing unit for sensing a tilt of the mobile terminal,
Wherein the controller controls the stereo scopic stereoscopic image to be rotated and displayed while the inclination of the mobile terminal is sensed through the sensing unit. 9. The method of claim 8,
And the control unit controls the direction and speed of the rotation to be changed corresponding to the inclination. delete delete delete delete delete delete

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