KR20130097311A - Electronic device and method for diaplaying stereoscopic image in the same - Google Patents

Abstract

PURPOSE: An electronic device and a three dimensional (3D) stereoscopic image display method at the electronic device are provided to display an image which includes a left eye image and a right eye image regardless of a format of the image with a 3D stereoscopic image instead of a 2D stereoscopic image. CONSTITUTION: A display unit (151) implements a 3D stereo vision. A controller (180) obtains a picture ratio of an image. The controller determines that the image is formed of two images for implementing the 3D stereo vision if the picture ratio corresponds to a predetermined picture ratio. The controller indicates a 3D stereoscopic image based on the image by the control of the display unit based on a determination result. [Reference numerals] (110) Wireless communication unit; (111) Broadcast receiving module; (112) Mobile communication module; (113) Wireless internet module; (114) NFC module; (115) Location information module; (120) A/V input unit; (121) Camera; (122) Microphone; (130) User input unit; (140) Sensing unit; (141) Posture recognition sensor; (150) Output unit; (151) Display unit; (152) Sound output unit; (153) Alarm unit; (154) Haptic unit; (160) Memory; (170) Interface unit; (180) Control unit; (181) Multimedia module; (190) Power supply

Description

Electronic device and method for diametrical stereoscopic image display in electronic device

The present invention relates to an electronic device, and more particularly, to an electronic device capable of displaying a stereoscopic image and a method of displaying a 3D stereoscopic image in the electronic device.

As mobile terminals such as personal computers, laptops, mobile phones, and smartphones and fixed electronic devices such as TVs are diversified in function, photography or video recording, music or video file playback, games, broadcast reception, etc. It is implemented in the form of a multimedia player with complex functions.

In order to support and increase the function of the electronic device, it may be considered to improve the structural part and / or the software part of the electronic device. Recently, as electronic devices provide complex and various functions, the menu structure is also complicated. In particular, interest and demand for electronic devices capable of implementing stereoscopic vision are increasing, and research and product launches on such electronic devices are also increasing.

Representative file formats that can represent three-dimensional stereoscopic image currently include MPO (Multi-Picture Object), JPS (JPEG Stereo). However, the MPO format is not a 3D-only standard, and its main purpose is to process multiple photos into a single file, such as a panorama-shot. It can be seen that the MPO format is not normal 2D due to its unusual extension. It is difficult to distinguish whether it is a 3D or 2 panorama.

The JPS format is an extension that is not currently recognized by most electronic devices, and as a result, SNS servers such as Twitter and Facebook automatically convert the extension of the image of the JPS format to JPEG and treat the two images as linked. Here, the two images are left eye images and right eye images for implementing 3D stereoscopic vision. Therefore, 3D image in JPS format cannot be provided through SNS application. There is a problem in that a 3D image has to be provided as an image connected to two two-dimensional images.

The technical problem to be solved by the present invention is an electronic device capable of displaying an image including a left eye image and a right eye image as a 3D stereoscopic image instead of a 2D image, regardless of the format of the image, and a 3D image in the electronic device. It is to provide a stereoscopic image display method.

The technical objects to be achieved by the present invention are not limited to the technical matters mentioned above, and other technical subjects which are not mentioned can be clearly understood by those skilled in the art from the following description. There will be.

An electronic device according to an embodiment of the present invention for solving the above technical problem may include a display unit and a controller. The display unit may implement a stereoscopic vision. The controller acquires an aspect ratio of an image, and when the aspect ratio of the acquired image corresponds to a predetermined aspect ratio, determines that the image is composed of two images for implementing 3D stereoscopic vision, and the determination result. The display unit may be controlled to display a 3D stereoscopic image based on the image. The predetermined aspect ratio may be an aspect ratio in which two images according to a specific standard are connected in a horizontal direction or an aspect ratio in which two images according to the specific standard are connected in a vertical direction.

On the other hand, when the aspect ratio of the obtained image corresponds to the predetermined aspect ratio, the controller determines whether the image is composed of two images for realizing a three-dimensional view, pattern matching for the two images (pattern matching) may be additionally performed.

According to an aspect of the present invention, there is provided a method for displaying a 3D stereoscopic image in an electronic device, the method including: obtaining an aspect ratio of an image; Determining whether an aspect ratio of the acquired image corresponds to a predetermined aspect ratio; Determining that the image is composed of two images for implementing 3D stereoscopic vision when the aspect ratio of the acquired image corresponds to the predetermined aspect ratio; And controlling the display unit to display a 3D stereoscopic image based on the image based on the determination result. On the other hand, in the 3D stereoscopic image display method in the electronic device, when the aspect ratio of the acquired image corresponds to the predetermined aspect ratio, it is determined whether the image is composed of two images for the three-dimensional stereoscopic vision implementation For example, the method may further include performing pattern matching on the two images.

The 3D stereoscopic image display method in an electronic device according to the embodiment of the present invention described above is implemented by executing a computer program for implementing the 3D stereoscopic image display method in the electronic device stored in a computer readable recording medium. Can be.

According to the electronic device and the 3D stereoscopic image display method of the electronic device according to the present invention, an image including a left eye image and a right eye image may be displayed as a 3D stereoscopic image instead of a 2D image regardless of the format of the image. have.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 and 3 are views for explaining a stereoscopic image display method using a binocular parallax associated with embodiments of the present invention.
4 is a flowchart illustrating an example of a 3D stereoscopic image display method of a mobile terminal according to the present invention.
5 illustrates an example of an image that may be displayed as a 3D stereoscopic image according to the 3D stereoscopic image display method of the mobile terminal shown in FIG. 4.
6 illustrates another example of an image that may be displayed as a 3D stereoscopic image according to the 3D stereoscopic image display method of the mobile terminal illustrated in FIG. 4.
7 is a flowchart illustrating another example of a 3D stereoscopic image display method of a mobile terminal according to the present invention.
8 is a flowchart illustrating still another example of a 3D stereoscopic image display method of a mobile terminal according to the present invention.
FIG. 9 illustrates an example in which a selected image is displayed as a 2D image according to the 3D stereoscopic image display method of the mobile terminal shown in FIG. 8.
10 illustrates an example in which a selected image is displayed as a 3D stereoscopic image according to the stereoscopic image display method of the mobile terminal illustrated in FIG. 8.
FIG. 11 illustrates that a user interface for determining a display form of a selected image is provided according to the stereoscopic image display method of the mobile terminal illustrated in FIG. 8.
12 is a flowchart illustrating still another example of a 3D stereoscopic image display method of a mobile terminal according to the present invention.
FIG. 13 is a flowchart illustrating still another example of a 3D stereoscopic image display method of a mobile terminal according to the present invention.
FIG. 14 is a flowchart illustrating still another example of a 3D stereoscopic image display method of a mobile terminal according to the present invention.
15 is a flowchart illustrating an example of a 3D stereoscopic video playback method of a mobile terminal according to the present invention.
16 is a flowchart illustrating another example of a 3D stereoscopic video reproduction method of a mobile terminal according to the present invention.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

In the present specification, when one component 'transmits or transmits' data or a signal to another component, the component may directly transmit or transmit the data or signal to the other component, and at least one It means that the data or signal can be transmitted to the other component through another component. 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.

The foregoing objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Like numbers refer to like elements throughout. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

The electronic devices described herein include not only portable electronic devices such as mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation devices, etc. The electronic device may also include an electronic device having a fixed location, such as a TV, a PC monitor, and a digital signage device. However, the scope of the present invention is not limited thereto.

Hereinafter, a feature of displaying a 3D stereoscopic image in an electronic device according to an exemplary embodiment of the present invention will be described.

1 is a block diagram of a mobile terminal 100 according to an embodiment of the present invention. Referring to FIG. 1, the mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, The storage unit 160, the interface unit 170, the controller 180, and the power supply unit 190 may be included. Since the components of the mobile terminal 100 shown in FIG. 1 are not essential, the mobile terminal 100 may have more components or fewer components.

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 a broadcast signal 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, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. 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 storage unit 160.

The mobile communication module 112 transmits and receives a radio signal 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 in response to a voice call signal, a video call 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 mobile terminal 100 or externally. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), LTE (Long Term Evolution) .

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 location information module 115 is a module for confirming or obtaining the location of the mobile terminal. The location information module 115 may obtain location information using a global navigation satellite system (GNSS). Here, the Global Positioning System (GNSS) is a term used to describe the radionavigation satellite systems in which certain types of radionavigation receivers orbiting the Earth are transmitting reference signals that can determine their position near the surface or ground surface . The Global Positioning System (GNSS) includes Global Positioning System (GPS) in the United States, Galileo in Europe, GLONASS (Global Orbiting Navigational Satelite System) in Russia, COMPASS in China and Japan QZSS (Quasi-Zenith Satellite System), which is operated by the Ministry of Land, Infrastructure and Transport.

As a representative example of the GNSS, the location information module 115 may be a Global Position System (GPS) module. The GPS module calculates information on a distance (distance) from three or more satellites to a point (object), information on a time when the distance information is measured, and then applies a trigonometric method to the calculated distance information, Dimensional position information according to latitude, longitude, and altitude with respect to a point (object) in the three-dimensional space. 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 continuously calculates the current position in real time, and calculates velocity information using the current position.

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 unit 151. [

The image frame processed by the camera 121 may be stored in the storage unit 160 or transmitted to the outside through the wireless 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 pressure / capacitance), 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 may 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 an attitude sensor 141 and / or a proximity sensor.

The output unit 150 may include a display unit 151, an acoustic output unit 152, an alarm unit 153, and a haptic module 154, for example, for generating an output related to visual, auditory, have.

The display unit 151 displays and 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, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display).

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 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.

According to an implementation form of the mobile terminal 100, two or more display units 151 may exist. For example, the plurality of displays may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. 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. As a result, the controller 180 can know which area of the display unit 151 is touched.

A proximity sensor may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen that is wrapped 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 photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

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

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 unit 152 may output audio data received from the wireless communication unit 110 or stored in the storage unit 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 unit 152 outputs an acoustic signal related to a function (e.g., a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. [ The audio output unit 152 may include a receiver, a speaker, a buzzer, and the like. Also, the sound output unit 152 may output sound through the earphone jack 116. The user can connect the earphone to the earphone jack 116 to hear the sound output.

The alarm unit 153 may output 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 also be output through the display unit 151 or the audio output unit 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 vibration generated by the haptic 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 storage unit 160 may store a program for the operation of the controller 180 and may temporarily store input / output data (e.g., a phone book, a message, a still image, The storage unit 160 may store data related to vibration and sound of various patterns outputted when a touch is input on the touch screen.

The storage unit 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) (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 storage unit 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 receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 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 interface unit 170 may include a card slot on which the card type user identification module can be mounted. Then, the user identification module may be connected to the mobile terminal 100 through the card slot. At this time, a plurality of user identification modules may be connected to the interface unit 170.

When the mobile terminal 100 is connected to an external cradle, the interface unit 170 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various commands A signal may be a path through which the signal is transmitted to the mobile 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 control unit 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.

In addition, the controller 180 acquires an aspect ratio of an image, and if the aspect ratio of the acquired image corresponds to a predetermined aspect ratio, determines that the image is composed of two images for implementing a 3D stereoscopic image. Next, the display unit 151 may be controlled to display a 3D stereoscopic image based on the image. Such a 3D stereoscopic image display method of the mobile terminal 100 according to the present invention will be described in more detail.

Under the control of the control unit 180, the power supply unit 190 receives external power and internal power, 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, micro-controllers, microprocessors, and electrical units for performing functions. In some cases, And may be implemented by the control unit 180.

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. [

In the above, the configuration of the mobile terminal 100 according to the present invention has been described with reference to FIG. 1. Hereinafter, referring to FIG. 2 to FIG. 16, the mobile terminal 100 according to the present invention described above will be described in detail with respect to a feature of displaying a 3D stereoscopic image.

2 and 3 are views for explaining a stereoscopic image display method using binocular parallax associated with embodiments of the present invention, Figure 2 is a method using a lenticular lens array (lenticular lens array) 3 shows a method of using a parallax barrier.

The binocular parallax refers to the difference in the way the left and right eyes of a person see things. When a human's brain synthesizes the image seen through the left eye and the image seen through the right eye, the synthesized image makes a person feel three-dimensional. In the following description, a phenomenon in which a person feels a stereoscopic sense according to binocular disparity is called 'stereoscopic vision', and an image causing stereoscopic vision is called a 'three-dimensional stereoscopic image'. Use it.

The stereoscopic image display method according to binocular disparity is divided into glasses type that requires special glasses and glassesless type that do not require glasses. The spectacles include a method using sunglasses with wavelength selectivity, a polarization glasses method using a light blocking effect according to a polarization difference, and a time-division glasses method alternately presenting left and right images within an afterimage time of an eye. In addition, there is a method in which a filter having different transmittances is mounted in the left and right sides to obtain a stereoscopic effect on the movement in the left and right directions according to the time difference of the visual system coming from the difference in the transmittances.

The autostereoscopic method, in which a stereoscopic effect is generated on the image display surface rather than the observer, includes a parallax barrier method, a lenticular lens method, a microlens array method, and the like.

Referring to FIG. 2, the display unit 151 includes a lenticular lens array 11a to display a stereoscopic image. The lenticular lens array 11a includes a display surface 13 in which the pixels L to be input to the left eye 12a and the pixels R to be input to the right eye 12b are alternately arranged along the horizontal direction, and the left and right eyes 12a, 12b), and provides optical discrimination directivity for the pixel L to be input to the left eye 12a and the pixel R to be input to the right eye 12b. Accordingly, the image passing through the lenticular lens array 11a is observed separately from the left eye 12a and the right eye 12a, and the human brain is viewed through the left eye 12a and through the right eye 12b. By synthesizing the three-dimensional image.

Referring to FIG. 3, the display unit 151 includes a vertical lattice-like parallax barrier 11b to display a stereoscopic image. The parallax barrier 11b includes a display surface 13 and left and right eyes 12a in which pixels L to be input to the left eye 12a and pixels R to be input to the right eye 12b are alternately arranged along the horizontal direction. 12b), the image is separated from the left eye 12a and the right eye 12b through a vertical grid-shaped aperture. Therefore, the human brain synthesizes an image viewed through the left eye 12a and an image viewed through the right eye 12b to observe a stereoscopic image. The parallax barrier 11b may be turned on only when a three-dimensional image is to be displayed to separate an incident time, and may be turned off when a planar image is to be displayed without being separated. .

On the other hand, the above-described three-dimensional image display method for explaining the embodiments of the present invention, the present invention is not limited thereto. The present invention can display a stereoscopic image using binocular disparity using various methods in addition to the above-described method.

4 is a flowchart illustrating an example of a 3D stereoscopic image display method of a mobile terminal 100 according to the present invention. Hereinafter, a 3D stereoscopic image display method of the mobile terminal 100 will be described with reference to necessary drawings.

First, the controller 180 of the mobile terminal 100 obtains an aspect ratio of an image (S100). Here, the image may be an image to be displayed on the display unit 151 of the mobile terminal 100, may be an image displayed on the display unit 151, the original image of the image displayed on the display unit 151 It may mean.

Then, the controller 180 determines whether the aspect ratio of the image corresponds to a predetermined aspect ratio (S110). Here, the predetermined aspect ratio may be an aspect ratio in which two images according to a specific standard are connected in a horizontal direction or a vertical direction.

If the aspect ratio of the image does not correspond to a predetermined aspect ratio, the controller 180 determines the image as a 2D image and displays the image as a 2D image (S120).

However, when the aspect ratio of the image corresponds to a predetermined aspect ratio, the controller 180 determines that the image is composed of two images for implementing 3D stereoscopic vision (S130). That is, the controller 180 recognizes that the left and right eye images for implementing the 3D stereoscopic vision are connected in the horizontal direction or the vertical direction.

Then, the controller 180 displays the 3D stereoscopic image based on the image on the display unit 151 (S160). The steps S140 to S150 of determining whether the image is composed of two images for implementing 3D stereoscopic vision based on the result of performing pattern matching on the two images to be described below are performed in the mobile terminal 100 according to the present invention. May be an optional step in the 3D stereoscopic image display method.

5 illustrates an example of an image that may be displayed as a 3D stereoscopic image according to the 3D stereoscopic image display method of the mobile terminal 100 shown in FIG. 4. In the image shown in FIG. 5, it can be seen that two 4: 3 standard images are connected in a horizontal direction and have an aspect ratio of 8: 3. Here, the image on the left corresponds to the left eye image when the 3D stereoscopic vision is implemented, and the image on the right corresponds to the right eye image when the 3D stereoscopic vision is implemented.

The left eye image and the right eye image shown in FIG. 5 are very similar and are difficult to distinguish easily. However, in the dotted line circle in FIG. 5, it can be seen that the left eye image and the right eye image are captured at different viewpoints. More specifically, in the left image, the entire number '6' around the head of the right person is not visible, but in the right image, the left and right eye images are different from each other. It can be seen that the image was taken at a point of view.

6 illustrates another example of an image that may be displayed as a 3D stereoscopic image according to the 3D stereoscopic image display method of the mobile terminal 100 shown in FIG. 4. In the image shown in FIG. 6, it can be seen that two 4: 3 standard images are connected in a vertical direction and have an aspect ratio of 4: 6. Here, the upper image corresponds to the left eye image when the 3D stereoscopic vision is implemented, and the lower image corresponds to the right eye image when the 3D stereoscopic vision is implemented.

Unlike with reference to FIGS. 5 and 6, when an image standard is 16: 9, an aspect ratio of an image in which two images are connected may be 32: 9 or 16:18 to implement 3D stereoscopic vision. However, the image standard that is the basis of the 3D stereoscopic image display method of the mobile terminal 100 according to the present invention is not limited to the above examples.

Referring back to FIG. 4, when it is determined that two images for implementing 3D stereoscopic vision are connected, the controller 180 performs pattern matching on two images constituting the image. (S150). Here, pattern matching for two images refers to a series of processes for determining similarity between the two images. As described above with reference to FIGS. 5 and 6, since the left and right eye images for implementing the 3D stereoscopic vision are very similar, the result of performing pattern matching on the two images will be very high. Pattern matching is well known to those skilled in the art to which the present invention pertains (hereinafter referred to as a person skilled in the art), and a detailed description thereof will be omitted.

Then, the controller 180 determines whether the pattern matching result for the two images is equal to or greater than a predetermined threshold value (S150). If the degree of similarity between the two images is greater than or equal to a predetermined threshold, the controller 180 can display a three-dimensional stereoscopic image using the two images, that is, based on the images. In step 151, the display is displayed. However, if the similarity between the two images is less than or equal to a predetermined threshold, the controller 180 sees the image as a simple two-dimensional image and displays the image on the display unit 151 as a two-dimensional image.

According to the 3D stereoscopic image display method of the mobile terminal 100 described above with reference to FIGS. 4 to 6, it is difficult to distinguish between an image for representing 3D stereoscopic vision or a panoramic image, or an MPO format image. Electronic devices other than some electronic devices can display 3D stereoscopic images of JPS format images that are recognized as JPEG files. This is the same for the 3D stereoscopic image display method for the still image of the mobile terminal 100 according to another embodiment of the present invention.

7 is a flowchart illustrating another example of a 3D stereoscopic image display method of a mobile terminal 100 according to the present invention. For reference, FIG. 7 illustrates a 3D stereoscopic image display method of the mobile terminal 100 according to a step divided into a user UX (User eXperience) side and a software framework side. Hereinafter, a 3D stereoscopic image display method of the mobile terminal 100 will be described with reference to necessary drawings.

First, a user performs an act of designating a picture displayed on the display unit 151 of the mobile terminal 100 (S200). For example, when the display unit 151 is implemented as a touch screen, the act of designating the picture may be a long-press on the picture as shown in FIG. 7. However, the user's action of selecting the picture displayed on the display unit 151 is not limited thereto.

Then, the controller 180 of the mobile terminal 100 obtains a 100% magnification of the webview (webview) for the picture at the web framework level (S210). In this case, the mobile terminal 100 should be implemented with an API (Application Programming Interface) to work with the web browser application, as shown in FIG.

Then, the controller 180 checks whether the ratio of the picture is 8: 3 ratio on the basis of 100% magnification at the web browser application level, and in this case, the controller 180 displays the "view menu in 3D" in the user interface. Add (S220). For reference, the 3D stereoscopic image display method of FIG. 7 is performed based on a photo of a standard having an aspect ratio of 4: 3.

Then, the user selects a "view menu in 3D" in the user interface (S230). When the display unit 151 is implemented as a touch screen, such menu selection may be made by a user's touch as shown in FIG. 7.

When the menu is selected by the user, the controller 180 executes a 3D gallery app (S240), and displays the picture on the display unit 151 as a 3D stereoscopic image (S250). . Meanwhile, as illustrated in FIG. 7, the controller 180 performs an operation such as a column interleaving operation for the photo and a 3D barrier on through the 3D gallery application. can do.

8 is a flowchart illustrating still another example of a 3D stereoscopic image display method of a mobile terminal 100 according to the present invention. For reference, the 3D stereoscopic image display method of FIG. 7 is performed based on a photo of a standard having an aspect ratio of 4: 3. Hereinafter, a 3D stereoscopic image display method of the mobile terminal 100 will be described with reference to necessary drawings.

First, the controller 180 of the mobile terminal 100 accesses a photo web page through the wireless communication unit 110, loads a photo from the photo providing web page, and displays the image on the display unit 151 as a 2D image. (S300). Then, the user selects the picture displayed on the display unit 151 (S310).

 Then, the controller 180 obtains the aspect ratio of the original picture displayed on the display unit 151 in a webkit (S320). In general, a picture displayed on a web page is displayed with a reduced resolution, size, etc. in the original picture. Therefore, the aspect ratio of the original photo displayed on the display unit 151 means the aspect ratio at 100 magnification of the photo as shown in FIG. 8.

When the aspect ratio of the original picture is obtained, the controller 180 determines whether the aspect ratio of the original picture is 8: 3 (S330). If the aspect ratio of the original picture is not 8: 3, the controller 180 determines the original picture as a simple two-dimensional image and displays the original picture as a two-dimensional image on the display unit 151 ( S340).

However, if the aspect ratio of the original picture is 8: 3, the controller 180 provides a user interface that allows the user to select whether to display the original picture as a 3D stereoscopic image, and the user displays the original picture as a 3D stereoscopic image. It is determined whether to select the view (S350).

If the user selects to view the original picture as a 3D stereoscopic image, the controller 180 receives data corresponding to the original image from the web page and displays the original picture as a 3D stereoscopic image. 151). (S360).

However, if the user does not select to view the original picture as a 3D stereoscopic image, the controller 180 displays the original picture as a 2D image on the display unit 151 (S340). In this case, the controller 180 receives data corresponding to the original photo from the web page, and then selectively displays only the right eye image or the left eye image of the original photo on the display unit 151 to display the original photo. Can be displayed as a 3D image.

FIG. 9 illustrates an example in which the selected image 151A is displayed as a 2D image according to the 3D stereoscopic image display method of the mobile terminal 100 shown in FIG. 8. For reference, FIG. 9 illustrates an example in which an original image corresponding to the selected image 151A is displayed as a 2D image when the original image of the selected image 151A does not have a predetermined aspect ratio as described above.

FIG. 9A illustrates that the user touches and selects the 2D image 151A displayed on the web page. Then, the controller 180 of the mobile terminal 100, as shown in (b) of FIG. 9, executes a two-dimensional image view application, and then the original image 151C of the selected two-dimensional image 151A. It can be seen that is displayed on the execution screen 151B of the two-dimensional image view application.

10 illustrates an example in which a selected image is displayed as a 3D stereoscopic image according to the stereoscopic image display method of the mobile terminal 100 illustrated in FIG. 8. For reference, FIGS. 10 and 11 illustrate an example in which an original image corresponding to the selected image 151A is displayed as a 3D image when the original image of the selected image 151A has a predetermined aspect ratio as described above.

FIG. 10A illustrates that the user touches and selects the 2D image 151A displayed on the web page. Then, as shown in (b) of FIG. 10, the controller 180 of the mobile terminal 100 stores, transmits, displays a 2D image, or displays a 3D original image for the selected 2D image. The user interface 151D including menus for selecting to display the image is displayed on the display unit 151.

Then, as shown in (b) of FIG. 10, the user selects a menu for displaying the original image of the selected 2D image as a 3D stereoscopic image in the user interface 151D. Then, as shown in (c) of FIG. 10, the controller 180 executes a 3D image view application and then views the original image 151E of the selected 2D image 151A. It can be seen that it is displayed on the execution screen 151F of the application. Meanwhile, the controller 180 may display only the original image 151E as the 3D stereoscopic image and the remaining screen as a 2D image.

FIG. 11 illustrates that a user interface for determining a display form of a selected image is provided according to the stereoscopic image display method of the mobile terminal 100 illustrated in FIG. 8.

FIG. 11A illustrates that the user touches and selects the 2D image 151A displayed on the web page. Then, as shown in (b) of FIG. 11, the controller 180 of the mobile terminal 100 includes a user including menus for selecting an original image for the selected 2D image as a 3D image. The interface 151G is displayed on the display unit 151. As shown in FIG. 11B, when the user touches the 'YES' button, the controller 180 converts the original image of the selected 2D image into the display unit 151 as a 3D stereoscopic image. Display. However, when the user touches the 'NO' button, the controller 180 displays the original image of the selected 2D image on the display unit 151 as a 2D image.

12 is a flowchart illustrating still another example of a 3D stereoscopic image display method of a mobile terminal 100 according to the present invention. For reference, the 3D stereoscopic image display method of FIG. 12 is performed based on a photo of a standard having an aspect ratio of 4: 3. Hereinafter, a 3D stereoscopic image display method of the mobile terminal 100 will be described with reference to necessary drawings.

Since steps S400 to S440 of FIG. 12 correspond to steps S300 to S340 of FIG. 8, detailed descriptions of the above steps will be omitted.

If the aspect ratio of the original picture is 8: 3, the controller 180 performs pattern matching on the left eye picture and the right eye picture included in the original picture. On the basis of the determination whether the original picture is a 3D picture (S450).

If the original picture is a 3D picture, the controller 180 receives data corresponding to the original picture from the web page and displays the original picture as a 3D stereoscopic image on the display unit 151 (S460). . However, when it is determined that the original picture is a simple two-dimensional picture, the controller 180 displays the original picture as a two-dimensional image on the display unit 151 (S440).

FIG. 13 is a flowchart illustrating still another example of a 3D stereoscopic image display method of a mobile terminal 100 according to the present invention. Hereinafter, a 3D stereoscopic image display method of the mobile terminal 100 will be described with reference to necessary drawings.

First, the controller 180 of the mobile terminal 100 accesses a photo web page through the wireless communication unit 110 and starts loading the photo providing web page (S500). The controller 180 determines the aspect ratio of the pictures provided by the web page while loading the web page, and automatically monitors the 3D picture based on the web page (S510). As described above, the monitoring of the 3D picture may be performed based on the aspect ratio of the picture, or may be performed based on the result of determining the aspect ratio of the picture and performing a pattern matching.

While monitoring the pictures, the controller 180 determines whether the user has selected to view the 3D picture as a 3D stereoscopic image (S520). The selection of the user may be performed by user interfaces similar to the user interfaces described above, or may be performed through the setting in the setting application of the mobile terminal 100. This can be easily derived by those skilled in the art from the foregoing, a detailed description thereof will be omitted.

If the user selects to view a 3D picture as a 3D stereoscopic image, the controller 180 receives data corresponding to the original image from the web page and displays the 3D picture as a 3D stereoscopic image. In step S540. However, when the user does not select to view the 3D picture as a 3D stereoscopic image, the controller 180 displays the 3D picture as a 2D image on the display unit 151 (S530).

FIG. 14 is a flowchart illustrating still another example of a method for displaying a 3D stereoscopic image of the mobile terminal 100 according to the present invention. For reference, the 3D stereoscopic image display method of FIG. 14 is performed based on a photo of a standard having an aspect ratio of 4: 3. Hereinafter, a 3D stereoscopic image display method of the mobile terminal 100 will be described with reference to necessary drawings.

First, the controller 180 of the mobile terminal 100 accesses the photo web page through the wireless communication unit 110 and starts loading the photo providing web page (S600). The controller 180 analyzes the HTML (Hypertext Markup Language) syntax of the web page while loading the web page (S610) and checks whether the size information of the photo is included in the HTML syntax of the web page. It is determined (S620).

When the size information of the picture is included in the HTML syntax of the web page, the controller 180 determines whether the aspect ratio of the picture is 8: 3 (S630), and the picture is two-dimensional based on the determination result. An image is displayed (S640) or a 3D stereoscopic image (S650).

If the page syntax information of the picture is not included in the HTML syntax of the web page, the controller 180 checks the aspect ratio of the picture based on the 100% magnification of the picture (S640). That is, the controller 180 checks the aspect ratio of the original picture of the picture. Then, the controller 180 displays the original photograph as a 2D image or a 3D stereoscopic image through the above-described steps S630 to S650.

In the above, with reference to FIGS. 2 to 14, the characteristics of the mobile terminal 100 according to the present invention which can display the still image as a 3D stereoscopic image based on the aspect ratio of the still image such as a photograph have been described. Hereinafter, the mobile terminal 100 according to the present invention determines whether the video is a 3D stereoscopic video, and based on the result of the determination, it will be described that the video can be reproduced as a 3D stereoscopic video.

15 is a flowchart illustrating an example of a 3D stereoscopic video reproducing method of the mobile terminal 100 according to the present invention. Hereinafter, a method of playing 3D stereoscopic video of the mobile terminal 100 will be described with reference to necessary drawings.

The controller 180 of the mobile terminal 100 analyzes a header file of the video file (S700), and determines whether the video is a 3D stereoscopic video based on the analysis result (S710).

If it is determined that the video file is a 3D stereoscopic video, the controller 180 plays the video in a 3D stereoscopic video playback mode (S720). Otherwise, the controller 180 plays the 2D video. Play in mode (S730).

16 is a flowchart illustrating another example of a 3D stereoscopic video reproducing method of the mobile terminal 100 according to the present invention. Hereinafter, a method of playing 3D stereoscopic video of the mobile terminal 100 will be described with reference to necessary drawings.

The controller 180 of the mobile terminal 100 analyzes the frame of the video file (S800), and determines whether the video is a 3D stereoscopic video based on the analysis result (S810). For example, the controller 180 is included in a frame of a compressed video file based on an algorithm according to H.264, and determines whether the video is a 3D stereoscopic video based on an analysis result of a Supplementary Enhancement Information message (SEI message). You can judge. In this case, part of the SEI message should include information indicating whether the video file is a 3D stereoscopic video.

If it is determined that the video file is a 3D stereoscopic video, the controller 180 plays the video in a 3D stereoscopic video playback mode (S820). Otherwise, the controller 180 plays the 2D video. Playback in the mode (S830).

As described above, each of the 3D stereoscopic image display and 3D stereoscopic video reproduction methods in the electronic device 100 according to the present invention is implemented in a program form that can be executed by various computer means, and recorded in a computer readable medium. Can be. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program recorded on the medium may be those specially designed and constructed for the present invention or may be those known to those skilled in the computer software.

Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of programs include high-level language code that can be executed by a computer using an interpreter or the like, as well as machine code as produced by a compiler. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

In the present specification, only the embodiments in which the still image or the video are displayed in the 3D stereoscopic view in the mobile terminal 100 are described. It can be extended to devices. That is, the present invention as described above, although described by the limited embodiment and the drawings, the present invention is not limited to the above embodiment, and those skilled in the art to which the present invention belongs to various modifications from this description And variations are possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

100: mobile terminal 110: wireless communication unit
120: A / V input unit 130: user input unit
140: sensing unit 150: output unit
151: display unit, touch screen 152: sound output unit
160: storage unit 170: interface unit
180: control unit 190: power unit

Claims (10)

A display unit capable of implementing three-dimensional stereoscopic vision; And
Obtain an aspect ratio of an image, and if the aspect ratio of the acquired image corresponds to a predetermined aspect ratio, it is determined that the image is composed of two images for realizing a 3D stereoscopic vision, and based on the determination result And a controller configured to control the display unit to display a 3D stereoscopic image based on the image. The method of claim 1, wherein the predetermined aspect ratio is
The aspect ratio of the two images according to a specific standard is connected to the horizontal direction, or the aspect ratio of the two images according to the specific standard connected to the vertical direction. The apparatus of claim 1,
When the aspect ratio of the acquired image corresponds to the predetermined aspect ratio, pattern matching is performed on the two images to determine whether the image is composed of two images for implementing 3D stereoscopic vision. An electronic device, characterized in that additionally performed. The apparatus of claim 1,
And an area other than a region where a 3D stereoscopic image based on the image is displayed on the screen of the display unit as a 2D image. The apparatus of claim 1,
Obtain the aspect ratio of the original image of the selected two-dimensional image of the two-dimensional image displayed on the display unit, and if the aspect ratio of the original image of the selected two-dimensional image corresponds to the predetermined aspect ratio, the original image of the selected two-dimensional image And controlling the display unit to display a 3D stereoscopic image. 6. The apparatus of claim 5,
If the aspect ratio of the original image of the selected two-dimensional image corresponds to the predetermined aspect ratio, the user interface for selecting whether to display the original image of the selected two-dimensional image as a three-dimensional stereoscopic image to display on the display unit Electronic equipment. The apparatus of claim 1,
When the image is an image provided through a specific web page, determining whether the aspect ratio of the image corresponds to the predetermined aspect ratio based on size information of the image included in HTML (Hypertext Markup Language) syntax of the web page. An electronic device, characterized in that. Obtaining an aspect ratio of an image;
Determining whether an aspect ratio of the acquired image corresponds to a predetermined aspect ratio;
Determining that the image is composed of two images for implementing 3D stereoscopic vision when the aspect ratio of the acquired image corresponds to the predetermined aspect ratio; And
And controlling the display unit to display a 3D stereoscopic image based on the image based on the determination result. The method of claim 8, wherein the predetermined aspect ratio,
A method of displaying a three-dimensional stereoscopic image in an electronic device, wherein two images according to a specific standard are connected in a horizontal direction, or two images according to the specific standard are connected in a vertical direction. The method of claim 8, wherein the 3D stereoscopic image display method in the electronic device comprises:
When the aspect ratio of the acquired image corresponds to the predetermined aspect ratio, pattern matching is performed on the two images to determine whether the image is composed of two images for implementing 3D stereoscopic vision. The 3D stereoscopic image display method of the electronic device further comprising the step of performing.

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