KR20120028222A - Apparatus and method for providing stereoscopic three-dimension image - Google Patents

Abstract

PURPOSE: A three dimensional image content providing apparatus and method thereof are provided to selectively select various content including a three dimensional image by recognizing a user state. CONSTITUTION: A content playback apparatus(200) receives partially encrypted three dimensional image data from a content provider(100). The content provider authenticates a user in order to provide the three dimensional image. The content playback apparatus decodes an encrypted part of the three dimensional image data according to a user authentication result. The content playback apparatus displays the three dimensional image by using the three dimensional image including the decoded part.

Description

Apparatus and method for providing stereoscopic three-dimension image}

The present invention relates to a method and apparatus for providing stereoscopic image content using stereoscopic image data received from a content provider.

Recently, with the development of the Internet and the digitization of various contents, it is possible to obtain the desired data more easily than before.However, there is a need for a content protection technology by accelerating the small size of contents providers through easy copying and distribution. Is skyrocketing. Therefore, as a countermeasure, the Digital Rights Management (DRM), which protects, secures, and manages digital content, that is, prevents illegal use of digital content in circulation and occurs according to the use of protected content. Technology is being developed in the areas of technology and services that continue to protect and manage the rights and interests of relevant copyright holders and licensees.

In particular, as the provision of content to stereoscopic images is commercialized, users are not limited to watching conventional planar images, but thanks to contents including stereoscopic images, the user has an effective aspect of contacting images that are more similar to actual forms. .

However, the supply of content for stereoscopic images has not yet been generalized or the device for reproducing contents including stereoscopic images has not been made. Therefore, it is not possible to store or transmit both 2D and 3D contents through a single media without distinguishing 2D or 3D contents users. Therefore, customers who want to use 2D content are required to store and transmit 2D content in media and store 3D content users in 3D content in media.

An object of the present invention is to provide an apparatus and method for providing a stereoscopic image that allows a user to selectively use contents including a stereoscopic image.

In order to achieve the above object, the stereoscopic image providing method according to an embodiment of the present invention provides a stereoscopic image using the data received from the content provider, and receives the partially encrypted stereoscopic image data from the content provider Making; Performing user authentication for providing the stereoscopic image; Decrypting the encrypted portion of the stereoscopic image data according to the performed user authentication result; And displaying a stereoscopic image using the stereoscopic image data including the decoded portion.

In addition, the stereoscopic image providing apparatus according to an embodiment of the present invention, a data transmission and reception unit for receiving the partially encrypted stereoscopic image data from the content provider, and transmits the user authentication data; A memory unit for storing the received stereoscopic image data; A decoder configured to decrypt the encrypted portion of the stereoscopic image data according to a user authentication result performed using the transmitted user authentication data; And a display unit which displays a stereoscopic image using the stereoscopic image data including the decoded portion.

On the other hand, the stereoscopic image providing method may be implemented as a computer-readable recording medium recording a program for execution in a computer.

According to an embodiment of the present invention, various contents including a stereoscopic image may be selectively selected and used to meet a user's state, thereby having an effect on efficient utilization of the stereoscopic image content.

1 is a block diagram showing the configuration of a content providing system.
2 is a block diagram showing a configuration of a content reproducing apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a content providing method according to an embodiment of the present invention.
4 is a flowchart illustrating an embodiment of a method for providing 3D stereoscopic image content.
5 is a diagram illustrating a first embodiment of a configuration of stereoscopic image data received from a content provider.
6 is a diagram illustrating a first embodiment of a structure of decoded stereoscopic image data.
FIG. 7 is a diagram illustrating a second embodiment of the configuration of stereoscopic image data received from a content provider.
8 is a diagram illustrating a second embodiment of the configuration of decoded stereoscopic image data.
9 to 14 are diagrams illustrating a first embodiment of a method for displaying a 3D stereoscopic image using stereoscopic image data received from a content provider.
15 to 17 are diagrams illustrating a second embodiment of a method of displaying a 3D stereoscopic image using stereoscopic image data received from a content provider.
18 and 19 are diagrams illustrating an embodiment of a method of providing a preview of a 3D stereoscopic image.
20 and 21 illustrate embodiments of a method of providing a 3D stereoscopic image when switching channels.

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

1 is a block diagram illustrating a configuration of a content providing system. The illustrated content providing system may include a content provider 100 and a content reproducing apparatus 200.

Referring to FIG. 1, the content provider 100 stores the information on the stereoscopic image reproducing apparatus or the user's information in the database with the content reproducing apparatus 200. The user's information includes user authentication information (eg, password, ID, etc.).

The content provider 100 transmits encrypted image data including a left eye image and a right eye image constituting a stereoscopic image to the content reproducing apparatus 200 according to a user's request. When the user authentication request is made through the content reproducing apparatus 200, the stored user information is analyzed to decode the encrypted image data to display a stereoscopic image.

The content reproducing apparatus 200 performs a function of displaying image data received from the content provider 100 in 2D or 3D.

2 is a block diagram illustrating a configuration of a content reproducing apparatus according to an embodiment of the present invention. The illustrated content reproducing apparatus includes a controller 205, a data transceiver 210, a TS / PS analyzer 215, and a decoder. The unit 220 may include an image reinforcement unit 225, a pull-down processor 230, a 3D format generator 235, a memory unit 240, and an authentication flag 245.

Referring to FIG. 2, the content reproducing apparatus 200 to which an embodiment of the present invention is applied receives a left eye image and a right eye image constituting a stereoscopic image from the content provider 100 through the data transceiver 210. The image to be received is encrypted by any one image. Therefore, it is decoded according to the user authentication result by the user's request and displayed in stereoscopic images.

The data transmission / reception unit 210 receives stereoscopic image data, transmits an authentication request signal to the content provider 100 according to a user authentication request, and receives a response signal for authentication accordingly.

The data transceiver 210 loads image data from the content provider 100 to generate a transport stream or a packetized stream. The generated transport stream is transferred to the TS / PS analyzer 215. The TSPS analyzing unit 215 generates an elementary stream (ES) including both image information and audio information by performing filtering and parsing to filter packets to be reproduced in the transport stream.

The elementary stream output from the TS / PS analyzer 215 is decoded by a decoder 220 suitable for the corresponding codec to output an image frame. The decoder 220 also decodes the audio information.

The codec signal in the decoder 220 may be changed by the user's selection. That is, it is also possible to change the codec applied to the decoding by the user's selection input through an input button or a remote controller.

On the other hand, in a stereoscopic image reproducing apparatus using a multiview video codec (MVC), a demultiplexer function is added to an output portion of the decoder unit 220 so that image data previously transmitted in one stream is left. It is divided into / right image is transmitted to the image enhancement unit 225. At this time, the left eye image and the right eye image are synchronized using time stamp information.

In particular, according to an embodiment of the present invention, the image frame is de-interlaced or image reinforcement in the image reinforcement unit 225 as any image is encrypted with respect to the image separated into a left / right image. Processing can be performed in advance by limiting the image to an unencrypted state.

In the 2D image reproducing apparatus, the image frames output from the image reinforcing unit 225 are transferred to the transmission data generating unit and, if necessary, are reformatted in a form that can be overlaid with other images or transmitted to a device for displaying an image such as a TV (not shown). Can be delivered directly.

On the other hand, the content reproducing apparatus 200 capable of outputting a 3D image according to an exemplary embodiment of the present invention is transferred to the 3D format generation unit 235 after the pull-down process 230 is performed after the image reinforcement unit 225 and the 3D image. It is created in a format. Also, the 3D format generation unit 235 does not perform format conversion on the received image data to a stereoscopic image before the user authentication procedure, and converts the image data received as a flat image, that is, a 2D image, to an unencrypted image. Output to a display unit (not shown).

The memory unit 240 receives the encrypted stereoscopic image data received through the data transmission and reception unit 210 according to an embodiment of the present invention, and stores the user authentication information for storing the encrypted stereoscopic image data. Do this.

In addition, it performs a function of temporarily storing the encrypted data among the left eye image or the right eye image constituting the stereoscopic image for outputting the image data to the 2D or 3D image according to the user authentication.

The authentication flag 245 receives or generates data required for user authentication when the user requests a user authentication to the content provider 100, and transmits the generated user authentication data to the content provider 100 through the data transmission / reception unit 210. Be sure to

The control unit 205 controls to receive the encrypted stereoscopic image data received by the data transmitting and receiving unit 210 according to an embodiment of the present invention, and transmits a user authentication request signal to the content provider 100, whether or not the user authentication Accordingly, a function of controlling to decrypt the encrypted stereoscopic image data is performed.

The content playback apparatus 200 according to the embodiment of the present invention as described with reference to FIGS. 1 and 2 receives a partially encrypted stereoscopic image data from the content provider 100, and receives the After decrypting the encrypted portion of the stereoscopic image data, the stereoscopic image may be displayed.

In addition, according to an embodiment of the present invention, the content reproducing apparatus 200 may perform user authentication for reproducing a stereoscopic image by decrypting the encrypted portion.

Hereinafter, exemplary embodiments of a method for providing stereoscopic image content according to the present invention will be described in detail with reference to FIGS. 3 to 21.

3 is a flowchart illustrating a content providing method according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the content reproducing apparatus 200 requests 3D image content from the content provider 100 (step 300), and the content provider 100 transmits 3D image content data to the content reproducing apparatus according to the request. Transmit (step 305).

Meanwhile, the stereoscopic image data transmitted from the content provider 100 may be partially encrypted, that is, a portion of the stereoscopic image data may be encrypted, and the remaining portion may not be encrypted.

For example, the stereoscopic image data may include left eye image data and right eye image data corresponding to each of the left eye image and the right eye image constituting the stereoscopic image, and any one of the left eye image data and the right eye image data is encrypted. May be transmitted from the content provider 100 in a state.

In addition, the stereoscopic image data may include additional information (eg, depth information) for displaying a stereoscopic image using 2D image data and the 2D image data, and the content provider 100 may include The additional information may be encrypted and transmitted.

The content reproducing apparatus 100 receives the stereoscopic image content data partially encrypted as described above (step 310).

Thereafter, the content reproducing apparatus 200 may transmit a user authentication request signal to the content provider 100 (step 615). For example, when the user authentication request signal is transmitted, the content reproducing apparatus 200 may transmit user information including a user ID and a password to the content provider 100.

The content provider 100 checks data including user information received from the content reproducing apparatus 200 and compares the received user data with previously stored user authentication data to perform user authentication (step 320).

When the content provider 100 transmits a signal indicating the user authentication result to the content playback device 200 after the user authentication is completed (step 325), the content playback device 200 encrypts the encrypted portion of the stereoscopic image data. Decryption (step 330).

Thereafter, the content reproducing apparatus 200 displays the stereoscopic image using the stereoscopic image data including the decoded portion (step 335).

FIG. 4 is a flowchart illustrating an embodiment of a method for providing 3D stereoscopic image content, and the method of providing a 3D stereoscopic image content shown in FIG. 4 according to an exemplary embodiment of the present invention shown in FIG. 2. It will be described in conjunction with a block diagram showing the configuration of.

Referring to FIG. 4, the data transmitter / receiver 210 of the content reproducing apparatus 200 receives stereoscopic image content data in which only one of the binocular images constituting the stereoscopic image is encrypted from the content provider 100 (step 400). .

For example, as shown in FIG. 5, stereoscopic image data received from the content provider 100 includes left eye image data L and right eye image data R, and one of the two data, right eye image data ( R) may be encrypted.

In this case, the display unit (not shown) of the content reproducing apparatus 200 may display the 2D image using the left eye image data L which is not encrypted among the stereoscopic image data received from the content provider 100.

On the other hand, if the user wants to watch the 3D stereoscopic image, the content reproducing apparatus 200 performs user authentication required to provide the content received from the content provider 100 as the 3D stereoscopic image through the authentication flag unit 245. (Step 405).

For example, the content reproducing apparatus 200 receives an ID and password for user authentication from a user, and transmits a user authentication request signal including the user information such as the input ID and password to the content provider 100. User authentication can be achieved.

As a result of the user authentication, if the user authentication is not successfully completed (step S410), the content is output as a 2D image using the unencrypted portion of the stereoscopic image data (step 415).

For example, if the ID or password input by the user is not stored or registered on the content provider 100 side, the user cannot charge a fee for viewing 3D stereoscopic image, and thus the content provider 100 fails to authenticate the user. The user authentication result signal informing that the message has been transmitted is transmitted to the content reproducing apparatus 200.

In this case, the content reproducing apparatus 200 uses the left eye image data L in the unencrypted portion of the stereoscopic image data received from the content provider 100, for example, 2D image. Can be displayed.

On the other hand, if the user authentication is successfully completed (step 410), the decoder unit 220 of the content playback device 100 decrypts the encrypted portion of the stereoscopic image data (step 420), the display unit (not shown) ) Outputs the content as a 3D stereoscopic image using the unencrypted portion and the decrypted portion of the stereoscopic image data (step 425).

For example, when user authentication is completed, the encrypted right eye image data R of the stereoscopic image data shown in FIG. 5 is decrypted, and the left eye image data L and the right eye image data which are not encrypted as shown in FIG. 6. (R) can be obtained.

Accordingly, the content reproducing apparatus 100 may display a 3D stereoscopic image using the obtained unencrypted left eye image data L and right eye image data R. FIG.

Meanwhile, in order to decrypt the encrypted portion in step 420, decryption information such as a key for decryption may be required, and the decryption information may be provided to the content provider 100 when the user authentication is successfully completed. From the content playback device 200.

According to another embodiment of the present invention, as shown in FIG. 7, stereoscopic image data received from the content provider 100 includes 2D image data and depth information, and the depth information may be encrypted.

For example, when a 3D stereoscopic image is generated by analyzing a 2D image photographed from a single viewpoint and generating a left eye image and a right eye image, each individual object and background included in the 2D image have a certain depth value in the 3D stereoscopic image. Depth information may be needed to determine whether

Even when the stereoscopic image data includes 2D image data and encrypted depth information as described above, the 3D stereoscopic image content providing method described with reference to FIGS. 3 to 6 may be applied.

For example, the content reproducing apparatus 100 displays content as a 2D image by using unencrypted 2D image data among stereoscopic image data received from the content provider 100, or when a user wants to display a 3D stereoscopic image. After the user authentication as described above, the 3D stereoscopic image may be displayed by decrypting the encrypted depth information.

That is, when user authentication is completed, encrypted depth information of the stereoscopic image data illustrated in FIG. 7 may be decrypted, and thus, unencrypted 2D image data and depth information may be obtained as illustrated in FIG. 8.

Accordingly, the content reproducing apparatus 100 may display a 3D stereoscopic image using the obtained 2D image data and depth information.

Hereinafter, a first embodiment of a method of displaying a 3D stereoscopic image using stereoscopic image data received from a content provider will be described in detail with reference to FIGS. 9 to 14.

Referring to FIG. 9, the content reproducing apparatus 200 may display an image of “CH1” in 2D by using content data received from the content provider 100.

In this case, the content data received from the content provider 100 may include only 2D image data or partially encoded stereoscopic image data.

In addition, whether the content data received from the content provider 100 is capable of viewing only 2D images including only 2D image data, or is capable of viewing not only 2D images but also 3D images including partially encrypted stereoscopic image data. May be displayed on the screen of the content reproducing apparatus 200.

For example, when the content data received from the content provider 100 includes only 2D image data, as shown in FIG. 9, viewing of the 2D image on the screen 500 of the content reproducing apparatus 200 is performed. A first icon 501 indicating that it is possible may be displayed.

Meanwhile, when the content data received from the content provider 100 includes partially encoded stereoscopic image data, as shown in FIG. 10, together with the first icon 501 indicating that viewing of 2D images is possible. The second icon 501 indicating that the 3D stereoscopic image can be viewed may be displayed on the screen 500 of the content reproducing apparatus 200.

In addition, the first icon 501 is displayed in an activated state using a different color or brightness so as to be distinguished from the second icon 502, thereby indicating that a 2D image is currently displayed on the content reproducing apparatus 200. .

For example, when the content data received from the content provider 100 includes partially encrypted stereoscopic image data, among the left eye image data L and the right eye image data R included in the stereoscopic image data, Either one may be encrypted, or depth information included in the stereoscopic image data may be encrypted.

According to an embodiment of the present invention, while the user is watching the content provided from the content provider 100 in a 2D image, the user may request to display the content in 3D stereoscopic image.

For example, the user requests a display of a 3D stereoscopic image by using a key button provided in the content reproducing apparatus 200 or provided in a remote control device (not shown) for controlling the operation of the content reproducing apparatus 200. Can be.

In addition, as illustrated in FIG. 10, the user moves the pointer 50 displayed on the screen 500 of the content reproducing apparatus 200 to select the second icon 501 indicating that viewing of the 3D stereoscopic image is possible. Thus, the display of the 3D stereoscopic image can be requested.

Referring to FIG. 11, when the user requests to display a 3D stereoscopic image as described above, a popup window 510 may be displayed on the screen 500 to confirm viewing of the 3D stereoscopic image.

When the user selects the "Yes" button displayed on the pop-up window 510, a fee charged for playing the content received from the content provider 100 in 3D stereoscopic image as shown in FIG. 12 causes the pop-up window 510 to be displayed. Can be guided using.

In addition, as illustrated in FIG. 13, in order to authenticate a user for providing a 3D stereoscopic image, the user may input an ID and a password using a popup window 510 displayed on the screen 500.

When user authentication is successfully completed according to the input ID and password, as shown in FIG. 14, an encrypted portion of the stereoscopic image data received from the content provider 100 (eg, left eye image data L). ) And right eye image data R or depth information) may be decoded to display content as a 3D stereoscopic image.

In this case, the second icon 502 is displayed in an activated state using a different color or brightness so as to be identified from the first icon 501, thereby indicating that the 3D image is currently displayed on the content reproducing apparatus 200. have.

According to another embodiment of the present invention, even if the content data received from the content provider 100 includes only 2D image data, the content reproducing apparatus 200 performs transmission of data necessary for displaying 3D stereoscopic images. The 3D stereoscopic image may be displayed by requesting and receiving the content provider 100.

Hereinafter, a second embodiment of a method of displaying a 3D stereoscopic image using stereoscopic image data received from a content provider will be described in detail with reference to FIGS. 15 to 17.

Referring to FIG. 15, when only 2D image data is received from the content provider 100 and 2D images are displayed as shown in FIG. 9, when the user requests to display 3D stereoscopic images, the content playback apparatus ( 200 may receive data necessary for display of the 3D stereoscopic image from the content provider 100.

For example, the content reproducing apparatus 200 requests the content provider 100 to transmit the left eye image data L and the right eye image data R corresponding to the corresponding content, or transmits the depth information to the content provider ( 100).

Alternatively, when only one of the left eye image data L and the right eye image data R is currently received from the content provider 100 and is displayed as the 2D image, the content reproducing apparatus 200 may determine the remaining data that is not currently received. The transfer can be requested to the content provider 100.

For example, when the content reproducing apparatus 200 displays the 2D image using the left eye image data L received from the content provider 100, the transmission of the right eye image data R is requested to the content provider 100. Can be.

Referring to FIG. 16, when the data requested to be transmitted cannot be provided from the content provider, the content reproducing apparatus 200 converts 2D image data received from the content provider 100 into a 3D stereoscopic image according to a specific conversion scheme. It can also be converted and displayed on its own.

As an example of a method of converting the 2D video signal into a 3D video signal, a modified time difference (MTD) mechanism may be used.

According to the MTD mechanism, the content reproducing apparatus 200 may use any one image selected from among a plurality of previous frames as a frame paired with the current image of the 2D video signal.

The previous image selected as a frame paired with the current image is called a delayed image. Which frame image is selected as the delayed image and whether the delayed image is a left image or a right image It can vary depending on the speed and direction of movement.

In this case, as illustrated in FIG. 17, the 3D icon 503 may indicate that 2D image data received from the content provider 200 is converted into a 3D stereoscopic image and displayed.

According to another embodiment of the present invention, before the user authentication is performed, the content playback apparatus 200 previews the 3D stereoscopic image based on the stereoscopic image data provided from the content provider 200 for a predetermined time ( preview).

18 and 19 illustrate an embodiment of a method of providing a preview of a 3D stereoscopic image.

Referring to FIG. 18, when a user requests to watch a corresponding content as a 3D stereoscopic image while viewing a 2D image, the content is not displayed as a 3D stereoscopic image for a predetermined time without entering the user authentication step for billing. Can be.

Accordingly, as shown in FIG. 19, after checking the preview of the 3D stereoscopic image displayed for a predetermined time, the user may select whether to watch the entire content as a 3D stereoscopic image.

On the other hand, when the user selects the viewing of the 3D stereoscopic image after confirming the preview, through the user authentication step as described above may be charged for viewing the 3D stereoscopic image of the content.

According to another embodiment of the present invention, when a broadcast channel is switched by a user while a specific broadcast channel is displayed as a 3D stereoscopic image, whether or not to display the 3D stereoscopic image for the switched broadcast channel is also determined by the user. It can be set by.

20 and 21 illustrate embodiments of a method for providing a 3D stereoscopic image when switching channels.

Referring to FIG. 20, while the image of "CH1" is displayed on the screen 500 as a 3D stereoscopic image by using the method described with reference to FIGS. 3 to 19, the reception channel may be changed by the user input. CH1 "to" CH2 ".

In this case, in response to switching the reception channel from "CH1" to "CH2", a pop-up window 510 for selecting whether to output a 3D stereoscopic image on the screen 500 of the content playback apparatus 200 is selected by the user. Can be displayed.

For example, when a user changes a receiving channel to "CH2" by using a channel up / down button (not shown) or a channel number input button (not shown) included in a remote controller (not shown), the changed " A pop-up window 510 is displayed on the screen 500 to confirm whether to continue watching the image of CH2 as a 3D stereoscopic image, and the user can select "Yes Button" or "No" included in the pop-up window 510. A button may be selected to determine whether to display a 3D stereoscopic image for the "CH2".

For example, when the user checks the pop-up window 510 and presses the "OK" button (or any one button corresponding to the "YES" button) provided in the remote control device (not shown), FIG. 3. The image of "CH2" may be displayed as a 3D stereoscopic image using the method described with reference to FIG. 19.

In addition, when the user presses the "cancel" button (or any button corresponding to the "no" button) provided in the remote controller (not shown), the image of "CH2" may be displayed as a 2D image. .

Referring to another embodiment of a method of setting whether to output the 3D stereoscopic image when switching channels with reference to FIG. 21, a menu item for setting whether to output the 3D stereoscopic image when switching the reception channel may be provided to the user. have.

For example, a 3D setting menu window 520 is displayed on the screen 500 to allow a user to set whether or not to maintain a conversion to a 3D video signal when the reception channel is switched in the form of an On Screen Display (OSD). Can be.

The user requests the display of the 3D setting menu window 520 as shown in FIG. 21, and then selects one of the check boxes 521 and 522 included in the 3D setting menu window 520 to switch channels. 3D viewing can be maintained or released.

If the user selects Save after selecting the first check box 521 for setting “Keep 3D viewing when switching channels” in the user 3D setting menu window 520, the viewing of 3D stereoscopic images is maintained after switching the receiving channel. Can be.

In this case, as shown in FIG. 20, when the reception channel is switched from "CH1" to "CH2", a separate popup window 510 is not displayed and the 3D setting menu window 520 is used. After undergoing user authentication or the like according to a preset user setting, the image of "CH2" may be displayed as a 3D stereoscopic image.

On the other hand, when the user selects the second check box 521 for setting "turn off 3D viewing when switching channels" in the 3D setting menu window 520 and then selects save, the 3D stereoscopic image may be Viewing may be released.

According to another embodiment of the present invention, the 3D setting menu as described above may be provided so that the user can set whether to maintain or release 3D viewing for each of a plurality of items when switching the channel.

For example, the user may set whether to maintain the 3D viewing by the genre, the viewing time, the viewing grade, the channel, and the user of the broadcast image using the 3D setting menu.

As described above, the present invention may have an effect on efficient utilization of stereoscopic image contents by selectively selecting and using various contents including stereoscopic images in accordance with a user's state.

The method for providing stereoscopic image contents according to the present invention described above may be stored in a computer-readable recording medium that is produced as a program for execution on a computer, and examples of the computer-readable recording medium include ROM, RAM, CD- ROMs, magnetic tapes, floppy disks, optical data storage, and the like, and also include those implemented in the form of carrier waves (eg, transmission over the Internet).

The computer readable recording medium can be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the method can be easily inferred by programmers in the art to which the present invention belongs.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

Claims (20)

In the method for providing a stereoscopic image using data received from a content provider,
Receiving partially encrypted stereoscopic image data from a content provider;
Performing user authentication for providing the stereoscopic image;
Decrypting the encrypted portion of the stereoscopic image data according to the performed user authentication result;
And displaying a stereoscopic image using the stereoscopic image data including the decoded portion. The method of claim 1,
And displaying a 2D image by using an unencrypted portion of the stereoscopic image data received by the content provider. The method of claim 1,
The stereoscopic image data received by the content provider includes left eye image data and right eye image data, wherein one of the left eye image data and the right eye image data is encrypted. The method of claim 3,
And displaying a 2D image using any one of the left eye image data and the right eye image data, which are not encrypted. The method of claim 1,
3D image data received by the content provider includes 2D image data and additional information for displaying a stereoscopic image using the 2D image data, wherein the additional information is encrypted. The method of claim 5,
And the additional information is depth information. The method of claim 5,
And displaying a 2D image by using the 2D image data. The method of claim 1, wherein the user authentication step
3. The stereoscopic image providing method of performing user authentication using the user information stored in the content provider. The method of claim 1,
And receiving a user input for requesting to display the content being displayed as the 2D image in the 3D image. 10. The method of claim 9,
If the content data received by the content provider does not include data necessary for displaying a stereoscopic image, requesting the content provider to transmit the necessary data. The method of claim 10,
And receiving the data requested to be transmitted from the content provider in an encrypted state. The method of claim 10, wherein the requesting a transmission step
And requesting transmission of at least one of left eye image data and right eye image data not included in the content data, or depth information. The method of claim 10,
If the data requested to be transmitted is not provided from the content provider, and converting the 2D image according to the content data to a stereoscopic image by itself and displaying the stereoscopic image providing method. The method of claim 1,
And displaying the stereoscopic image as a preview for a predetermined time before the user authentication is performed. A data transmitting / receiving unit which receives the partially encrypted stereoscopic image data from the content provider and transmits user authentication data;
A memory unit for storing the received stereoscopic image data;
A decoder configured to decrypt the encrypted portion of the stereoscopic image data according to a user authentication result performed using the transmitted user authentication data; And
And a display unit configured to display a stereoscopic image using the stereoscopic image data including the decoded portion. 16. The method of claim 15,
The stereoscopic image data received by the content provider includes left eye image data and right eye image data, and any one of the left eye image data and the right eye image data is encrypted. The method of claim 16, wherein the display unit
And displaying a 2D image using any one of the left eye image data and the right eye image data, which are not encrypted. 16. The method of claim 15,
And the stereoscopic image data received by the content provider includes 2D image data and encrypted depth information. The method of claim 15, wherein the data transmission and reception unit
If the stereoscopic image data received by the content provider does not include the data necessary for display of the stereoscopic image, request the transmission of the necessary data to the content provider, and from the content provider with the necessary data encrypted. Receiving stereoscopic image providing device. A computer-readable recording medium having recorded thereon a program for executing the method according to any one of claims 1 to 14.

Images