KR101100229B1 - Method and apparatus for displaying broadcast signal - Google Patents

Abstract

The present invention relates to a broadcast signal presentation method and apparatus. In the broadcast signal presentation method according to an embodiment of the present invention, the step of receiving broadcast data including the first image and the playback control information, which is either a left image or a right image included in a stereoscopic image implemented using binocular disparity; Storing the first image and displaying the first image as a 2D image; receiving a second image included in the stereoscopic image in pairs with the first image; using the stored first image and the received second image Displaying a stereoscopic image. According to the present invention, the image received at the broadcast receiving end can be dynamically transformed and reproduced.

Description

Broadcast signal display method and apparatus {Method and apparatus for displaying broadcast signal}

The present invention relates to a broadcast signal presentation method and apparatus.

As the transition from analog broadcasting to digital broadcasting that transmits digital signals, not only screen transmission for pure broadcasting but also additional screens and texts can be transmitted.

However, in general, not only the digital broadcasting system but also other digital communication systems have a limited transmission bandwidth, and thus there is a limit in the size of additional information to be transmitted.

In a broadcasting and communication system, when a transmitting end transmits a series of images at predetermined time intervals, the receiving end receives the images at the same interval as above. Then, the receiving end reproduces the images in the same order as the above sequence at the same time interval as the image transmission interval at the time delayed from the image transmitting time of the transmitting end.

1 is a diagram conceptually illustrating an example of a conventional broadcast signal transmission and reception method. In the example of FIG. 1, the difference in transmission time of each image is represented by n. In the drawing, the horizontal axis is a time axis, and a line perpendicular to the time axis indicates a time point at which the image is transmitted. It is assumed that the broadcast object transmitted at each transmission time point is an image.

When the images are received and reproduced, the reproduced images are reproduced in the order of the time intervals and the transmitted images, which is the same difference as the difference between the transmission time points.

Therefore, if a transmission object that consumes a lot of bandwidth is reproduced in a narrow bandwidth broadcasting or communication system, the reception speed of the reproduced object may not be the same as the transmission speed.

In addition, even if the receiving end can reproduce the objects at the rate transmitted by the transmitting end, the receiving end has no choice but to reproduce the objects depending on the transmission speed or the transmission order of the objects transmitted by the transmitting end.

Due to this limitation, the transmitting end must transmit all the contents after varying the contents in order to provide various contents to the receiver.

For example, the broadcast transmitter may transmit a stereoscopic image or a broadcast signal having various screen configurations so as to attract the attention of the receiver. If the process is transmitted in the same manner as before, there is a problem in that not only the bandwidth but also the burden of having to configure and transmit all transmission screens.

On the other hand, according to the conventional broadcast receiving apparatus or broadcast receiving method, the broadcast receiving end has to receive an object transmitted by the broadcast transmitting end and play the transmitted object itself. In this case, when the transmission speed of the broadcast signal is slow or the bandwidth is limited, there is an inconvenient problem in that the object to be reproduced cannot be properly reproduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to transmit and receive a broadcast signal that can provide convenience for transmitting a signal and reproducing an image to a side to transmit a broadcast signal and a side to receive a broadcast signal. An apparatus and a method for transmitting and receiving broadcast signals are provided.

Another object of the present invention is to provide a broadcast signal transmission and reception apparatus and a broadcast signal transmission and reception method capable of dynamically modifying and playing a transmitted broadcast object.

Another object of the present invention is to provide a broadcast signal transmission and reception apparatus and a broadcast signal transmission / reception method for three-dimensional reproduction of a broadcast signal transmitted by a broadcast reception apparatus.

In order to solve the above technical problem, the broadcast signal display method according to an embodiment of the present invention, the first image and the playback control information which is either of the left image or the right image included in the stereoscopic image implemented using binocular disparity Receiving a broadcast data comprising a; storing the first image and displaying the first image as a two-dimensional image, receiving a second image included in the stereoscopic image in pairs with the first image, And displaying a stereoscopic image using the stored first image and the received second image.

In addition, the broadcast signal display method according to an embodiment of the present invention is characterized in that it comprises an identifier for identifying whether the image displayed on the playback control information is a two-dimensional image or a three-dimensional image.

In addition, the broadcast signal display method according to an embodiment of the present invention is characterized in that it is set to 0 when the image displayed with the identifier is a 2D image, and is set to 1 when the image displayed is a 3D image.

In addition, the broadcast signal display method according to an embodiment of the present invention is characterized in that the first image, the second image and the reproduction control information are received through a digital multimedia broadcasting service.

In addition, the method for displaying a broadcast signal according to an embodiment of the present invention is characterized in that the step of displaying a stereoscopic image to generate binocular disparity for the first image and the second image using a switching panel.

In order to solve the above technical problem, the broadcast signal display device according to an embodiment of the present invention, the first image, which is one of the left image or the right image included in the stereoscopic image implemented using binocular disparity, the first image A receiver for receiving broadcast data including a second image and reproduction control information included in a stereoscopic image in pairs with the image, a storage unit for storing broadcast data, and displaying the first image as a 2D image or a first And a display unit for displaying a stereoscopic image using the image and the second image.

In addition, the apparatus for displaying broadcast signals according to an embodiment of the present invention is characterized in that it includes an identifier for identifying whether the image on which the reproduction control information is displayed is a 2D image or a 3D image.

In addition, the apparatus for displaying a broadcast signal according to an embodiment of the present invention is set to 0 when the image on which the identifier is displayed is set to 2, and 1 when the image to be displayed is a 3D image.

In addition, the broadcast signal display device according to an embodiment of the present invention is characterized in that the first image, the second image and the reproduction control information are received through a digital multimedia broadcasting service.

In addition, the broadcast signal display device according to an embodiment of the present invention is characterized in that the display unit includes a switching panel unit for generating binocular parallax for the first image and the second image.

The effects of the apparatus for transmitting and receiving broadcast signals and the method for transmitting and receiving broadcast signals according to the present invention described above are as follows.

First, the apparatus for transmitting and receiving broadcast signals and the method for transmitting and receiving broadcast signals according to the present invention may provide convenience for a case where a side to transmit a broadcast signal and a side to receive a broadcast signal transmit or reproduce an image.

Second, according to the apparatus for transmitting and receiving broadcast signals and the method for transmitting and receiving broadcast signals according to the present invention, a transmission image may be dynamically transformed and reproduced.

Third, according to the apparatus for transmitting and receiving broadcast signals and the method for transmitting and receiving broadcast signals according to the present invention, the transmitted broadcast signal can be reproduced in three dimensions.

1 is a view conceptually illustrating an example of a conventional broadcast signal transmission and reception method
2 is a flowchart illustrating an embodiment of a broadcast signal transmission method according to the present invention.
3 is a flowchart illustrating an embodiment of a broadcast signal receiving method according to the present invention.
4 is a conceptual diagram illustrating an example in which an image is reproduced according to a broadcast signal transmission / reception method according to the present invention.
5 is a conceptual diagram of another example in which an image is reproduced according to a broadcast signal transmission / reception method according to the present invention;
6 is a conceptual diagram of another example in which an image is reproduced according to a broadcast signal transmission and reception method according to the present invention;
7 is a conceptual diagram of another example in which an image is reproduced according to a broadcast signal transmission and reception method according to the present invention;
8 is a conceptual diagram of another example in which an image is reproduced according to a broadcast signal transmission and reception method according to the present invention;
9 conceptually illustrates a broadcast data structure according to a broadcast signal transmission / reception method according to the present invention.
10 illustrates an example in which reproduction control information is included in a data structure according to the present invention.
11 (a) and 11 (b) illustrate a multimedia object transfer (MOT) protocol.
12 is a block diagram showing an embodiment of a broadcast signal transmission apparatus according to the present invention
13 is a block diagram showing an embodiment of a broadcast signal receiving apparatus according to the present invention
14 is a block diagram showing an embodiment of a broadcast signal receiving apparatus according to the present invention
15 is a conceptual diagram of implementing a stereoscopic image by the apparatus for receiving broadcast signals according to the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically achieve the above object will be described.

First, a case in which an image is transmitted as a broadcast object is conceptually described in order to easily explain the broadcast signal transmission and reception method according to the present invention, but the spirit of the present invention is not limited thereto.

In the broadcast signal transmitting and receiving device and the broadcast signal transmitting and receiving method according to the present invention, the order and interval of images reproduced by the broadcast signal receiving apparatus are different from the order and interval of images transmitted by the broadcast signal transmitting apparatus so that the reproduced image is dynamic and three-dimensional. Can be played back.

That is, the apparatus for transmitting and receiving broadcast signals and the method for transmitting and receiving broadcast signals according to the present invention reproduce two or more images received at different times in a different order, or two or more images received at different times. Can be synthesized and played back simultaneously.

2 is a flowchart illustrating an embodiment of a broadcast signal transmission method according to the present invention. Hereinafter, an embodiment of a broadcast signal transmission method according to the present invention will be described with reference to FIG. 2. The broadcast signal transmission method according to the present invention generates playback control information defining a broadcast object such as an image to be transmitted and a playback principle of the broadcast object (S10).

In the present specification, when reproducing broadcast objects included in a broadcast signal, a reproduction principle such as a reproduction order of the broadcast objects is defined, and information that can be obtained from the transmitted broadcast signal is referred to as reproduction control information.

The broadcast object such as an image and the reproduction control information are converted into a format of broadcast data (S20). In operation S30, the broadcast signal including the broadcast object and the reproduction control information transmitted in the broadcast data format is transmitted.

3 is a flowchart illustrating an embodiment of a broadcast signal receiving method according to the present invention. An embodiment of a broadcast signal reception method according to the present invention will be described with reference to FIG. 3. First, a broadcast signal including a broadcast object such as an image and reproduction control information is received (S110).

Then, the broadcast object and the reproduction control information are obtained from the received broadcast data (S120). Receives a received broadcast object such as an image according to the acquired reproduction control information.

In the reproduction control information, the reproduction order, reproduction interval, and reproduction dimension of the broadcast object are defined. According to this information, the received image can be reproduced dynamically or in a three-dimensional manner.

4 to 8 illustrate a concept in which an image is reproduced according to an embodiment of the broadcast signal transmission / reception method according to the present invention.

4 to 8, in order to easily understand the embodiment of the broadcast signal transmission / reception method according to the present invention, it is assumed that an image is an object of a broadcast signal and a transmission interval of each image is 1 second.

First, an embodiment of a broadcast signal transmission and reception method according to the present invention will be described with reference to FIG. 4.

First, the broadcast signal transmission apparatus may transmit A, B, C, D, E, F ... images at regular intervals. When receiving the image, the broadcast signal receiving apparatus may receive the image at an interval of 1 second, which is the same interval as the transmission interval, at a delayed time at the transmission time.

However, the embodiment of FIG. 4 may play back images received earlier than a second at a time point at which two or more images are received. 4 illustrates a case in which A and B images are repeatedly reproduced at intervals of 0.1 seconds when the B image is received, and C and D images are repeatedly reproduced when the D image is received.

Thus, the receiver can view a dynamic image such as a slide show by quickly and repeatedly playing back images that have been played at rather long time intervals.

5 is a diagram conceptually showing another embodiment of a broadcast signal transmission / reception method according to the present invention. According to the broadcast signal transmission and reception method according to the present invention, two-dimensional images may be transmitted to reproduce stereoscopic images. Here, the stereoscopic image refers to an image image that appears when two images, such as viewed from the left and right directions, are respectively displayed on the screen to give binocular parallax and visually synthesize this.

The broadcast signal transmitting apparatus divides each image into an image viewed by the left eye (hereinafter referred to as the left index; represented by an L index) and an image viewed by the right eye (hereinafter referred to as an right image; represented by an R index). Alternately transmits images by the eye.

FIG images for A in the fifth embodiment of A _R, A _L, as an image for the image B _R, B _L, C _L C for B, _R C ... etc. Each sequence represents a case for transport. Any one of the left image and the right image for each image need not be transmitted first, but the example of FIG. 5 shows a case where the left image is transmitted first.

When the broadcast signal reception apparatus reproduces the image transmitted as described above, the broadcast signal reception apparatus displays a stereoscopic image of A when both A _R and A _L are transmitted, and B when both B _R , and B _L are transmitted. Each of the stereoscopic images can be played back. Therefore, the receiver can reproduce the stereoscopic image of each image, so that the receiver can feel the reality in watching the broadcast. A process of synthesizing a stereoscopic image using two images will be described in detail with reference to FIG. 15.

6 is a view conceptually showing another embodiment of a broadcast signal transmission / reception method according to the present invention.

The embodiment of FIG. 6 transmits an image in the same manner as the embodiment of FIG. 5. When both the left image and the right image of the plurality of images are transmitted, the broadcast signal receiving apparatus may repeatedly reproduce each stereoscopic image in a fast time (assuming 0.1 second in the example of FIG. 6). Therefore, when viewing an image reproduced by the broadcast signal receiving apparatus, the receiver may feel lively on the broadcast due to the dynamic movement of the stereoscopic image.

7 is a view showing another embodiment of a broadcast signal transmission and reception method according to the present invention. Referring to Figure 7 another embodiment of the present invention will be described.

The apparatus for transmitting broadcast signals may set and transmit images related to each other as a group. In the embodiment of FIG. 7, A, B, C, and D are first image groups representing images related to each other, and E, F, G, H, and I are second image groups representing images related to each other. Images in the same group may be images related to an image image to be reproduced, and images on each group may be distinguished from each other.

 Images in each group may be images that can be reproduced as two-dimensional slides, images reproduced as stereoscopic images, or images that can be reproduced as moving stereoscopic images as illustrated in FIGS. 4 to 6. .

Therefore, it is preferable that the images in the group are related images so that the images in the same group are reproduced so that the recipient does not feel uncomfortable when viewing the images by the image group.

7 shows an example in which an image belonging to the first image group is reproduced when the last image I of the images of the second image group is received. That is, the image group may have any number of images, and the time point at which the received images are played may be arbitrarily set.

8 conceptually illustrates another embodiment of a broadcast signal transmission / reception method according to the present invention.

The apparatus for transmitting broadcast signals may transmit a mixture of images constituting a stereoscopic image and images constituting a 2D image. In the embodiment of FIG. 8, the left image (A _L ) for A and the right image (A _R ) and the left image (B _L ) for B, the right image (B _R ), the left image for C, D, E ( Assume that E _L ) and the right image E _R are transmitted sequentially. And it is assumed that the left image B _L for B on the transmission path is lost and not transmitted.

In the embodiment of FIG. 8, the apparatus for receiving broadcast signals shows a case in which an image of A is reproduced as a stereoscopic image after delaying image reproduction until receiving A _R after receiving A _L. However, it is also possible to reproduce a two-dimensional image at the time of receiving A _L and to reproduce a stereoscopic image when A _R is received.

Since the broadcast signal receiving apparatus does not receive the left image B _L for B, the broadcast signal receiving apparatus may reproduce the left image for B as a 2D image when the B _R image is received.

Thereafter, the broadcast signal receiving apparatus may receive and reproduce two-dimensional images C and D. The embodiment of FIG. 8 reproduces C and D in a received order with a time delay. However, it is also possible to play a slide show using C and D after receiving D, without playing C until D is received.

When the broadcast signal receiving apparatus receives E _R , E may be reproduced as a 2D image. When E _L is received, E may be reproduced as a stereoscopic image.

As described above, according to the broadcast signal transmission / reception method according to the present invention, the received images may be reproduced more dynamically or vividly than the transmitted images. By reproducing the plurality of images, the images can be reproduced dynamically, and various embodiments are possible in addition to the above examples.

9 shows an example of a broadcast data structure capable of realizing an embodiment of the above-described broadcast signal transmission / reception method. An example of a structure of broadcast data that enables an embodiment of the present invention will be described with reference to FIG. 9.

When transmitting a broadcast signal, it is possible to insert and play reproduction information necessary for reproduction of broadcast objects to be transmitted.

When the broadcast signal transmission apparatus transmits a broadcast object, the broadcast signal transmission apparatus may transmit reproduction control information about the broadcast objects together with the broadcast objects.

Accordingly, the apparatus for transmitting broadcast signals may cause the broadcast signal receiving apparatus to refer to the reproduction control information without having to modify and transmit the objects in various ways, so that the broadcast signals may be variously transformed and reproduced in a different form from the received form. .

On the other hand, when the broadcast signal receiving apparatus decodes the received broadcast signal, the broadcast signal receiving apparatus may transform and reproduce the broadcast objects into a different image from the received image according to the playback principle obtained from the reproduction control information.

As an example of the data structure of FIG. 9, a first field to which information related to a signal structure of a broadcast object to be transmitted belongs, a second field to which additional information required when a broadcast object to be played back belongs, and raw data for the broadcast object ( raw data) may include a third field to which the data belongs.

The first field may be referred to as a header field that can be transmitted together with the broadcast object. In addition, since the third field is a field for transmitting data on a broadcast object, the third field may be generally called a data field or a body field. Therefore, the terminology used herein is not to be construed as limited to its name, but to be construed in a sense of the term.

Hereinafter, the second field is referred to as an additional information field. The additional information field is information required when playing a broadcast object and may include memory information or information related to a playback order.

Although the above-described reproduction control information may be included in any of the above-described fields, it is preferable that the reproduction control information is included in a necessary additional information field when a broadcast object is reproduced.

10 shows an example of the structure of the additional information field when the reproduction control information that can be transmitted by the present invention is included in the additional information field. The additional information field including the reproduction control information according to the present invention will be described in detail with reference to FIG. 10 as follows.

The reproduction control information may be information representing a dimension of the reproduced image or information representing a reproduction order of the images when the image is reproduced.

Accordingly, the additional information field of the example of FIG. 10 may include a field indicating dimension information or reproduction order information. Hereinafter, the field is referred to as an image reproduction field (a).

In the example of FIG. 10, when the data value of the image reproduction field is 1, the reproduction image is a 3D image (stereoscopic image). When 2, the reproduction images are images belonging to a 2D image group. Indicates that the image belongs to the 3D image group.

On the other hand, if the data value of the image reproduction field is 0, this indicates that the image to be reproduced is a two-dimensional image. In other words, if the value of the image reproduction field is 0, the image is transmitted as it is in the conventional manner. Therefore, it is possible to have backward compatibility with respect to the conventional broadcast signal receiving apparatus.

In the above example, when the value of the image reproduction field is 0, the broadcast signal receiving apparatus may reproduce the image in the same manner as in FIG. 1, and when the value of the image reproduction field is 1, the 3D image may be reproduced in the same manner as in FIG. 5. Can play.

In addition, when the image reproduction field value is 2, the broadcast signal receiving apparatus may reproduce the 2D slide image in the same manner as in FIG. 4, and when the image reproduction field value is 3, it belongs to the 3D image group illustrated in FIG. 6. Images can be played back.

In addition, the reproduction control information transmitted as broadcast data according to the present invention includes information indicating the number of images in one group, information indicating a serial number in each group, and a reproduction interval between groups when the broadcast data has an image reproduction field. Information and information indicating one or more of the serial number of each group may be included.

Information indicating the number of images in one group indicates the total number of images belonging to one image group. According to the example of FIG. 10, information indicating the number of images in a group is valid when the value of the image reproduction field is 2 or 3.

The information indicating the serial number in each group indicates the order of the images belonging to the image group, and in the example of FIG. 10, it may indicate that the serial numbers of 0 to 99 may be included.

In addition, the example of FIG. 10 indicates that when the reproduced image is a stereoscopic image, it is a left image when each image number is even, and is a right image when an odd number is used.

The information about the playback interval between groups means the time when one image group is played and then another image group is played. In the example of FIG. 10, it may be 0.1 second, and when 0, the image does not belong to the image group. If the information on the playback interval between groups is 0, the received image may not be reproduced in group units, but may be reproduced as received.

Information indicating the serial number of a group indicates a group number assigned to each group. In the example of FIG. 10, it may have a serial number from 0 to 999999.

The data structure illustrated in FIG. 10 may be used in any broadcast system or any communication system capable of transmitting an object transmitting a broadcast signal. The broadcast system and the communication system use various protocols capable of transmitting images, and may provide fields as shown in FIG. 10 in the reserved area of the above protocol. Then, the reproduction control information on the broadcast object can be transmitted using this.

In order to implement the broadcast signal transmission and reception method according to the present invention in more detail, it will be described with reference to the Multimedia Object Transfer (MOT) protocol.

11 (a) and 11 (b) are diagrams illustrating a multimedia object transfer (MOT) protocol among various broadcast and communication transfer protocols. An example of transmitting reproduction control information using the MOT protocol will be described with reference to FIGS. 11A and 11B as follows.

FIG. 11 (b) is a diagram illustrating some data fields of a multimedia audio broadcasting (DAB) MOT protocol of EN 301 234 V2.1.1. The data structure according to the invention can be defined in the unspecified area of the MOT protocol. In FIG. 11B, unspecified areas are shaded.

For the expandability of the broadcast signal transmission / reception method according to the present invention, it may be defined in a variable length data field among unspecified areas of the MOT protocol. The reproduction control information can be inserted into a fixed length field, but a variable length data field can give an expandability to define a field.

11 (b) shows that a data structure according to the present invention can be inserted into a ContentName field having a variable length. The example of FIG. 11 (a) is a property indicator for filling a field such as ContentName, and the shaded portion shows that the ContentName field can be filled with Arabic numerals and transmitted.

Accordingly, when the reproduction control information is transmitted by inserting the data field and the data field value into the same field as the ContentName shown in FIG. 11 (b) as in the example described with reference to FIG. 10, the broadcast object may be reproduced according to the reproduction control information. have.

As described above, the data structure of the present invention can be transmitted by other broadcast transmission protocols or communication transmission protocols in addition to the MOT protocol.

12 is a diagram illustrating an embodiment of a broadcast signal transmission apparatus according to the present invention. An embodiment of the apparatus for transmitting broadcast signals according to the present invention includes a reproduction control information generation unit 110, an image storage unit 120, a broadcast data conversion unit 130, and a transmission unit 140.

An operation of an embodiment of the broadcast signal transmission apparatus according to the present invention will be described with reference to FIG. 12 as follows.

The reproduction control information generation unit 110 may generate information on a reproduction principle when an image is transmitted and reproduced by the broadcast signal receiving apparatus. Accordingly, the reproduction control information generated by the reproduction control information generation unit 110 may include the fields illustrated in FIG. 10.

The image storage unit 120 may store images that are broadcast objects to be transmitted. The image storage unit 120 may receive and store an image generated externally, or generate and temporarily store an image to be transmitted.

The broadcast data conversion unit 130 may convert the image data stored in the image storage unit 120 and the reproduction control information output from the reproduction control information generation unit 110 into a broadcast data format for transmission. In addition, according to a principle or a protocol for transmitting a broadcast signal, the generated broadcast signal may be packetized and output.

The transmitter 140 may transmit the broadcast signal generated by the broadcast data converter 130 through a transmission network.

Accordingly, the broadcast signal transmission apparatus may also transmit reproduction control information related to the reproduction type when the images are reproduced without having to modify and transmit the images in advance so that the images may be dynamically reproduced in the broadcast signal receiving apparatus.

13 is a diagram illustrating an embodiment of a broadcast signal receiving apparatus according to the present invention. An embodiment of the broadcast signal receiving apparatus of FIG. 13 includes a broadcast signal receiver 210, a broadcast signal decoder 220, a memory 230, an image processor 250, a controller 260, and a display 280. It may include.

The embodiment of FIG. 13 may further include a switching panel unit 281 when displaying a stereoscopic image using binocular disparity of two images.

The apparatus for receiving broadcast signals is not limited to a television, and any apparatus capable of receiving broadcast such as a mobile communication terminal having the above structure is sufficient.

An operation of an embodiment of a broadcast signal receiving apparatus with reference to FIG. 13 will now be described. The broadcast signal receiver 210 may receive a broadcast signal, demodulate the signal, and output the demodulated signal.

The broadcast signal decoder 220 may decode the broadcast signal from the demodulated broadcast signal and separate and output the broadcast object and the reproduction control information for the broadcast object.

The memory unit 230 may store an image, which is a broadcast object output from the broadcast signal decoder 220, and playback control information. To this end, the memory unit 230 may include an image buffer unit 232 for storing an image and a reproduction control information storage unit 235 for storing reproduction control information. The image buffer unit 232 may have a plurality of buffers capable of storing each received image.

The reproduction control information storage unit 235 may receive and store the reproduction control information decoded by the broadcast signal decoder 230.

The image processor 250 may allow the stored images to be reproduced according to the reproduction control information stored in the memory 230.

The controller 260 may output a signal for controlling each component of the broadcast signal receiving apparatus. The image processor 260 and the controller 260 may be one component.

The display 280 may display an image output from the image processor 250 on the screen. In particular, when displaying a stereoscopic image using binocular parallax, the broadcast signal receiving apparatus may include a switching panel unit 281 for a stereoscopic image on the surface of the display unit 280.

The switching panel 281 is off when the image to be reproduced is a two-dimensional image. However, when the image to be reproduced is three-dimensional, the switching panel unit 281 may separate the incident time so that the panel is turned on to increase the three-dimensional effect on the image. The operation of the switching panel 281 will be described in more detail with reference to FIG. 15.

14 is a block diagram illustrating an embodiment of a mobile communication terminal in consideration of a mobile communication terminal as a broadcast signal receiving apparatus according to the present invention.

An embodiment of the broadcast signal receiving apparatus of FIG. 14 may include a signal receiver 310, a signal demodulator 320, a memory 330, a terminal controller 350, a display 380, and the like.

The signal receiver 310 may receive a signal including a broadcast object and reproduction control information. The signal demodulator 320 may demodulate and output the received signal.

The terminal controller 350 may obtain a broadcast object such as an image and playback control information from the received signal, and store the obtained image and playback control information in the memory unit 330. The memory unit 330 may have a playback control information storage unit 335 and an image buffer unit 332 for this purpose.

The terminal controller 350 may play back the image according to the stored playback control information. The display unit 380 may reproduce a slide show, a stereoscopic image, or dynamic movement of the stereoscopic image according to the reproduction control information of the terminal controller 350. In particular, the display unit 380 may further include a switching panel unit (not shown) to reproduce the stereoscopic image.

The mobile communication terminal may have a sound module 371, a sound processor 373, a speaker 375, and a graphics module 379 for communication. The camera module 392 and the external memory 395 may be connected to the interface unit 360 of the terminal.

15 is a diagram illustrating a concept of displaying an image transmitted from a switching panel unit in three dimensions. The switching panel may display an image as a stereoscopic image by using binocular parallax. The binocular parallax represents the difference between the right eye and the left eye's view of objects. When the image (R) through the right eye and the image (L) through the left eye are synthesized in the human brain, the synthesized image may be seen as a stereoscopic image to the person.

To this end, a single image is prepared by dividing the image of the right eye and the image of the left eye, and the left image (L) and the right image (R) are synthesized in units of pixels and displayed on one screen. Then, if the human eyes separate the pixel-by-pixel image by the left image and the pixel-by-pixel image by the right image, the image may be viewed as a stereoscopic image.

The method of composing the two images may be mainly an interpolation method, but may vary depending on the method of forming the image.

In FIG. 15, b denotes a barrier interval of the switching panel portion, g denotes a gap between the switching panel portion and the display portion, and z denotes a distance from the position seen by a person to the display portion.

As shown in FIG. 15, when the two images are synthesized in pixel units (L and R), the time of the right eye is received as a pixel included in the right image, and the time of the left eye corresponds to a pixel included in the left image. The switching panel 281 may operate.

The switching panel 281 may be turned on to separate an incident time when the apparatus for receiving broadcast signals tries to reproduce a stereoscopic image. In addition, when the broadcast signal receiving apparatus intends to reproduce the 2D image, the switching panel unit 281 may be turned off to pass the incident time without separating the incident time. Therefore, binocular disparity is not separated when the switching panel portion 281 is turned off.

In the above embodiment, the broadcast object is an image as an example, but those skilled in the art can modify the present invention even if the broadcast object is text, still image, video, or audio content, so that the playback object is reproduced with the reproduction control information. It is included in the spirit of the present invention.

Therefore, it is easy for a person skilled in the art to change or modify the present invention from the present specification. Although an embodiment of the present invention has been described above clearly, various modifications thereof should be made without departing from the spirit and the scope of the present invention.

110: playback control information generation unit 120: image storage unit
130: broadcast data conversion unit 140: transmission unit
210: broadcast signal receiver 220: broadcast signal decoder
230, 330: memory section 232, 332: image buffer section
235, 335: Playback control information storage unit 250: Image processing unit
260: control unit 280, 380: display unit
281: switching panel 310: signal receiving unit
320: signal demodulation unit 330: memory unit
350: terminal control unit 360: interface unit
371: sound module 373: sound processor
379 graphic module 392 camera module
395 external memory

Claims (10)

Receiving broadcast data including a first image, which is one of a left image and a right image included in a stereoscopic image implemented using binocular disparity, and playback control information;
Storing the first image and displaying the first image as a 2D image;
Receiving a second image included in the stereoscopic image in pairs with the first image; And
And displaying the stereoscopic image using the stored first image and the received second image. The method of claim 1,
And the reproduction control information includes an identifier for identifying whether the displayed image is a 2D image or a 3D image. The method of claim 2, wherein the identifier is,
The broadcast signal display method is set to 0 when the displayed image is a 2D image, and 1 when the displayed image is a 3D image. The method of claim 1,
And the first image, the second image, and the playback control information are received through a digital multimedia broadcasting service. The method of claim 1,
The displaying of the stereoscopic image may include generating a binocular disparity for the first image and the second image by using a switching panel. A first image, which is either a left image or a right image included in a stereoscopic image implemented using binocular disparity, a second image included in the stereoscopic image in pairs with the first image, and playback control information A receiver for receiving broadcast data;
A storage unit which stores the broadcast data; And
And a display unit configured to display the first image as a 2D image or to display the stereoscopic image using the first image and the second image. The method of claim 6,
And the reproduction control information includes an identifier for identifying whether the displayed image is a 2D image or a 3D image. The method of claim 7, wherein the identifier is,
The broadcast signal display apparatus is set to 0 when the displayed image is a 2D image, and set to 1 when the displayed image is a 3D image. The method of claim 6,
And the first image, the second image, and the playback control information are received through a digital multimedia broadcasting service. The method of claim 6,
The display unit includes a switching panel unit for generating binocular parallax for the first image and the second image.

Images