KR20120004587A - A digital broadcast receiver and a method for processing a stream in a digital broadcast receiver - Google Patents

Abstract

PURPOSE: A digital broadcasting receiver and stream processing method in a digital broadcasting receiver are provided to convert content in a specific format into content in the other format. CONSTITUTION: A digital broadcasting receiver reprocesses input 2D stream(S901). The digital broadcasting receiver converts the reprocessed 2D stream into 3D stream according to a defined type(S902). The digital broadcasting receiver generates stream index information, thumbnail image information, 3D format information and identification information about converted 3D stream(S903). The digital broadcasting receiver stores the converted 3D stream with identification information(S904).

Description

A DIGITAL BROADCAST RECEIVER AND A METHOD FOR PROCESSING A STREAM IN A DIGITAL BROADCAST RECEIVER}

The present invention relates to a stream processing method in a digital broadcast receiver and a digital broadcast receiver, and more particularly, to a method for processing a stream including 2D (dimensional) and / or 3D (dimensional) content in a digital broadcast receiver.

In general, a 3D image (or a stereoscopic image) provides a stereoscopic effect using a stereo vision principle of two eyes. Humans feel perspective through the parallax of two eyes, that is, the binocular parallax by the distance between two eyes about 65mm apart, so the 3D image provides an image so that each of the left and right eyes can see an associated plane image. It can provide three-dimensional and perspective.

The 3D image display method includes a stereoscopic method, a volumetric method, a holographic method, and the like. In the stereoscopic method, a left view image for viewing in the left eye and a right view image for viewing in the right eye are provided so that the left eye and the right eye respectively through polarizing glasses or the display device itself. The 3D effect can be recognized by viewing the left image and the right image.

An object of the present invention is to provide a method for converting and processing content of a specific format in a broadcast stream received by a digital broadcast receiver into content of another format, and providing a method for providing the converted content to a user. .

According to the present invention, an example of a method of processing a stream in a digital broadcast receiver includes: re-defining an input 2D stream; Convert the reprocessed 2D stream into a 3D stream according to a pre-determined method, and stream index information, thumbnail image information, and 3D for the converted 3D stream. Generating identification information including at least one of 3D format information and additional information; And storing the converted 3D stream together with the identification information.

In this case, the stream index information may include at least one of picture type information, stream offset information, and picture characteristic information for each picture constituting the stream.

The thumbnail image information may include a thumbnail image, which is an image obtained by reducing a still image of a stream to a smaller size, and at least one of information and additional information about an extraction position in the stream of the thumbnail image. have.

The stream information may include at least one of reproduction information, time information, and size information of the stream.

The 3D format information may include identification information for identifying an output format to which the converted 3D stream belongs among a single stream output format and a dual stream output format.

The predefined method may perform motion analysis on a predetermined 2D stream in a predetermined unit and estimate depth information based on the result of the motion analysis to estimate the depth information. Based on the depth, the 2D stream may be converted into a 3D stream.

Another example of a stream processing method in a digital broadcast receiver according to the present invention includes reprocessing an input 2D stream and including at least one or more of stream index information, thumbnail image information, 3D format information, and additional information for the reprocessed 2D stream. Generating identification information; Storing the reprocessed 2D stream with the identification information; Extracting the stored 2D stream and converting the extracted 2D stream into a 3D stream according to a predefined manner; And outputting the 3D stream.

In this case, the stream index information may include at least one of picture type information, stream offset information, and picture characteristic information with respect to each picture constituting the stream.

The thumbnail image information may include a thumbnail image which is an image obtained by reducing a still image of a stream to a smaller size, and at least one of information and additional information about an extraction position of the thumbnail image in the stream.

The stream information may include at least one of reproduction information, time information, and size information of the stream.

The 3D format information may include identification information for identifying an output format to which the converted 3D stream belongs among a single stream output format and a dual stream output format.

In addition, the predefined method may perform a motion analysis in a predetermined unit on the input 2D stream, estimate depth information based on the motion analysis result, and based on the estimated depth information. You can apply depth to a 2D stream and convert it to a 3D stream.

According to the present invention, an example of a method of converting a 2D stream into a 3D stream and outputting the converted 3D stream in a digital broadcasting receiver according to the present invention includes: stream index information, thumbnail image information, Generating identification information including at least one of 3D format information and additional information; Providing a user interface (UI) configured to display the converted 3D stream separately from other streams based on the identification information; And outputting the converted 3D stream according to an external input through the UI.

In this case, the stream index information may include at least one of picture type information, stream offset information, and picture characteristic information with respect to each picture constituting the stream.

The thumbnail image information may include a thumbnail image which is an image obtained by reducing a still image of a stream to a smaller size, and at least one of information and additional information about an extraction position of the thumbnail image in the stream.

The stream information may include at least one of reproduction information, time information, and size information of the stream.

The 3D format information may include identification information for identifying an output format to which the converted 3D stream belongs among a single stream output format and a dual stream output format.

In addition, the predefined method may perform motion analysis on a predetermined 2D stream in a predetermined unit, estimate depth information based on the result of the motion analysis, and based on the estimated depth information. You can apply depth to a 2D stream and convert it to a 3D stream.

The converted 3D stream may be converted in real time from a stream received through a currently tuned channel or from a pre-stored 2D stream.

One example of a digital broadcast receiver according to the present invention includes a receiver for receiving a 2D stream; A first stream manager for reprocessing the 2D stream and generating reference information for the reprocessed 2D stream; A conversion unit for converting the reprocessed 2D stream into a 3D stream according to a predefined method; A second stream manager for generating reference information on the converted 3D stream and controlling storage and playback of the 3D stream; A storage unit for storing the reprocessed 2D stream and the converted 3D stream together with identification information generated for each stream; And an output unit configured to output the converted 3D stream.

In this case, the converter may receive at least one of a 2D stream reprocessed from the first stream manager and a preprocessed 2D stream extracted from the storage unit and convert the received 2D stream into a 3D stream.

The reference information about the 2D stream may include at least one of stream index information, thumbnail image information, 3D format information, and additional information about the 2D stream.

The reference information about the 3D stream may include at least one of stream index information, thumbnail image information, 3D format information, and additional information about the converted 3D stream.

The stream index information may include at least one of picture type information, stream offset information, and picture characteristic information for each picture constituting the stream.

The thumbnail image information may include a thumbnail image, which is an image obtained by reducing a still image of a stream to a smaller size, and at least one of information and additional information about an extraction position of the thumbnail image in the stream.

The stream information may include at least one of reproduction information, time information, and size information of the stream.

The 3D format information may include identification information for identifying an output format to which the converted 3D stream belongs among a single stream output format and a dual stream output format.

The predefined method performs motion analysis on a predetermined 2D stream in a predetermined unit, estimates depth information based on the motion analysis result, and based on the estimated depth information. You can apply depth to the stream to convert it to a 3D stream.

The apparatus may further include a controller configured to generate a UI configured to display the converted 3D stream separately from other streams.

The controller may control to display the thumbnail image information and the free space of the storage unit in which the converted 3D stream is differentiated from other streams based on reference information about the stored 3D stream.

According to the invention,

First, there is an effect that can convert the content produced in a specific format to another format.

Second, there is an effect that the user can conveniently provide the content, including the converted content.

Third, there is an effect that can be processed to realize the various functions of the digital broadcast receiver for the converted content.

Fourth, there is an effect having compatibility with the existing digital broadcast receiver.

1 is a view illustrating a perspective in which a user may feel a three-dimensional effect according to a parallax between left image data and right image data in relation to a 3D principle;
2 illustrates a stereoscopic image multiplexing format of a single video stream format;
3 illustrates a stereoscopic image multiplexing format of a multi video stream format;
4 is a block diagram showing an example of a configuration of a digital broadcast receiver according to the present invention;
5 is a conceptual diagram illustrating a process of converting from 2D to 3D in a digital broadcasting receiver according to the present invention;
6 is a block diagram of a digital broadcast receiver for implementing a 3D time machine function according to the present invention;
7 illustrates an embodiment of adding a 3D UI for 3D content according to the present invention;
FIG. 8 is a diagram illustrating in detail the 3D UI related to a thumbnail in FIG. 7, and
9 to 11 are flowcharts illustrating each embodiment of a method for processing a stream including content in a digital broadcast receiver according to the present invention.

Other objects, features, and advantages of the present invention will be described with reference to the accompanying drawings in detail, but the scope of the present invention is not limited or limited by the embodiments described below.

As used herein, terms used in the present invention are selected from general terms that are widely used in the present invention while taking into account the functions of the present invention, but these may vary depending on the intention or custom of a person skilled in the art or the emergence of new technologies. In addition, in certain cases, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in the corresponding description of the invention. Therefore, it is intended that the terminology used herein should be interpreted based on the meaning of the term rather than on the name of the term, and on the entire contents of the specification.

Hereinafter, preferred embodiments of the present invention in which the above object can be specifically realized are described with reference to the accompanying drawings.

The present invention relates to a digital broadcast receiver and a method for processing a stream in a digital broadcast receiver, and more particularly, to format conversion / processing of contents included in the stream. And a method of providing the same. Here, the present invention is to provide a related user interface (UI) in consideration of the recognition and selection of a user when providing the converted content.

In the present specification, for the convenience of description and convenience of description, the conversion of 2D (2-Dimensional) content into 3D (3-Dimensional) content will be described as an example with respect to format conversion / processing of content. However, the scope of the present invention is not limited to the above matters, and may be applied to the opposite case.

Hereinafter, a description will be given of a format conversion / processing method of content, and a method of providing such content to a user will be described. However, each of the above methods may be present in the form of one embodiment, or may be combined in the form of one embodiment.

contents  Format conversion / processing method

Hereinafter, a method of converting / processing a content of a specific format in a stream received by a digital broadcast receiver into another format according to the present invention will be described.

In describing the process of converting / processing 2D content into 3D content according to the present invention, the basic principle and format of 3D will be briefly described as follows.

In general, a 3D image (or a stereoscopic image) provides a stereoscopic effect using a stereo visual principle of two human eyes. Humans feel perspective through the parallax of two eyes, that is, the binocular parallax due to the distance between two eyes about 65mm apart, so 3D image provides an image so that the left and right eyes can see the associated planar image. It can provide three-dimensional and perspective.

FIG. 1 is a view illustrating a perspective in which a user may feel a three-dimensional effect according to a parallax between left image data and right image data in relation to a 3D principle.

FIG. 1A illustrates the image position 103 formed by combining the two data when the parallax between the right image data 101 and the left image data 102 is narrow. In contrast, FIG. 1B illustrates an image position 113 formed by combining both data when the parallax of the right image data 111 and the left image data 112 is relatively wider than that of FIG. 1A. Explain. 1 (a) to 1 (b), images are formed at different positions (or distances) from the left eye and the right eye according to the parallax of the left and right image data, and according to the position of the image, the human eye has a degree of perspective I can feel it.

In Fig. 1 (a), the image 103 draws the extension lines R1 and R2 facing one side and the other side of the right image data 101 to the right eye, and the same way for the left image data 102 to the left eye. When the extension lines L1 and L2 are drawn, the extension line R1 for the right image data and the extension line L1 for the left image data are formed at a point where they cross at a predetermined distance d1 from the right eye and the left eye. In FIG. 1B, when the image 113 is shown in FIG. 1A, the extension line R3 for the right image data and the extension line L3 for the left image data are a predetermined distance d2 from the right eye and the left eye. At the point where they intersect. Here, comparing d1 (Fig. 1 (a)) and d2 (Fig. 1 (b)), which represent the distances from the two eyes to the positions 103 and 113, the distance from both eyes is greater than d2. That is, the image in Fig. 1 (a) is formed at a distance farther from both eyes than the image in Fig. 1 (b).

This is due to the interval (lateral direction based on the drawing) of the left / right image data. For example, the interval of the right / left image data 101/102 in FIG. 1 (a) is relatively narrow compared to the interval of the right / left image data 103/104 in FIG. 1 (b). Therefore, referring to Figs. 1 (a) and 1 (b), as the interval of each image data becomes narrower, the image formed by the combination of the left and right image data is formed at a relatively far distance from the human eye and feels far.

In relation to the present invention, a 3D image representation method includes a stereoscopic image method considering two viewpoints and a multiple view image method considering three or more viewpoints. In contrast, the conventional single view image method is called a monoscopic image method.

The stereoscopic imaging method uses a pair of left and right images obtained by photographing the same subject by a left camera and a right camera that are spaced at a constant distance. The multi-view image uses three or more images obtained by photographing three or more cameras having a constant distance or angle.

The stereoscopic image or the multiview image may be compressed and transmitted in various ways, including a moving picture expert group (MPEG). For example, a stereo image or a multiview image may be compressed and transmitted by using an H.264 / AVC (Advanced Video Coding) method. In this case, the digital broadcast receiver may obtain a 3D image by decoding the image received in the reverse of the H.264 / AVC coding scheme. In addition, one of the left image data and the right image data of the stereoscopic image or one of the multi-view image is assigned to the base layer (base layer) image, the remaining image is extended layer (extended layer or enhanced layer) image, An image of the base layer may be encoded in the same manner as a mono-scopic image, and an image of the enhancement layer may be encoded and transmitted only for relationship information between the image of the base layer and the enhancement layer. Here, as an example of a compression encoding scheme for the base layer image, a JPEG (Joint Photographic Experts Group), MPEG-2, MPEG-4, H.264 / AVC scheme, or the like may be used. In addition, H.264 / MVC (Multi-view Video Coding) may be used as the compression encoding scheme for the video of the higher layer. The compression coding scheme described above is an example, and it is obvious that other compression coding schemes may be used.

In addition, the transmission format of the stereoscopic video includes a single video stream format and a multi video stream format. The single video stream format is a method of multiplexing video data of two views into a single video stream and transmitting the video data in one video stream, thereby providing additional bandwidth required for providing a 3D broadcasting service. There is an advantage that bandwidth is not large. The multi-video stream format is a method of transmitting a plurality of video data to a plurality of video streams, the bandwidth is increased, but the high-capacity data transmission is possible to display high-quality video data.

2 illustrates a stereoscopic image multiplexing format of a single video stream format.

The single video stream format includes side-by-side of (a), top / bottom of (b), interlaced (c), and frame sequential of (d). (frame sequential), checker board of (e), anaglyph of (f), and the like.

In the side-by-side format of (a), the left and right images are down-sampled 1/2 in the horizontal direction, respectively, one sampled image on the left and the other sampled image on the right. Position to form a stereoscopic image. In the top / bottom format of (b), the left and right images are half downsampled in the vertical direction, and one sampled image is placed on the top and the other sampled image is placed on the bottom. Compose a scopic image. In the interlaced format of (c), the left and right images are each half-sampled to cross each line in the horizontal direction, so that the two images are composed of one image, or the left and right images are respectively lined vertically. The two images are composed of one image by half downsampling to cross each time. The frame sequential format of (d) is configured by temporally intersecting a left video and a right video in one video stream. In the checkerboard format of (e), the two images are configured as one image by half-sampling the left image and the right image so as to intersect in the vertical and horizontal directions, respectively. The anaglyph format of (f) composes an image to produce a stereoscopic effect using complementary color contrast.

3 illustrates a stereoscopic image multiplexing format of a multi video stream format.

The full left / right format of (a) is a case of sequentially transmitting the left and right images respectively, and the full left / half right format of (b) is the left image. As it is, the right image is a case of transmitting by sub-sampling 1/2 sub-sampling in the vertical or horizontal direction. The 2D video / depth format of (c) is a case in which one of the left and right images is transmitted together with depth information for producing another image.

In order to process video data by efficiently demultiplexing video data transmitted in such various ways in a receiving system, it is necessary to transmit information on the multiplexing format described above.

In the above, the 3D concept and format have been briefly described. However, in the present specification, for the sake of understanding of the present invention and for the convenience of the applicant, the stereoscopic video method will be described as an example, but the idea of the present invention is not limited to the stereoscopic video method, for example, again. The same may be applied to the point image in the same or similar manner.

In relation to the conventional content, 2D content in a planar 2D format has been mainstream, but as 3D movies in Hollywood have become popular, interest in 3D content is increasing. The 3D concept itself is more realistic and three-dimensional than the planar 2D contents, and is being used in other fields such as architecture. However, it is true that the number or quantity of broadcast 3D contents produced to date is absolutely insufficient.

This lack of 3D content, despite changes in the broadcast environment, has yet to be 3D related international technical standards, such as Codec, Format, Media-specific transmission standards, Interface standards, Quality measurement standards, etc. The lack of this confusion in content producers and receiver manufacturers is also a cause.

In addition, 3D content may not have as much influence as the transition from the analog broadcasting age to the digital broadcasting age. This may be due to a technical problem with the 3D format itself, but not all contents need to be 3D, and whether or not 2D / 3D production of the contents should be determined according to characteristics, demands, effects, etc. of the contents.

Therefore, 2D content and 3D content may be mixed in a future broadcasting environment, and a digital broadcast receiver should be able to receive and process both 2D content and 3D content. Furthermore, the production of new 3D content by overlapping with existing 2D content can be a burden in terms of cost or time in reality. If a digital broadcast receiver can convert a format between 2D content and 3D content, many 2D The content can be recycled, and various broadcasting environments can be easily and easily provided to the user, thereby satisfying a large number of users, receiver manufacturers, content providers, and the like.

Digital broadcast receiver

Hereinafter, a digital broadcast receiver capable of converting and processing 2D content into 3D content according to the present invention will be described. Here, the digital broadcast receiver can also process conventional 2D content and 3D content.

4 is a block diagram illustrating an example of a digital broadcast receiver according to the present invention.

The digital broadcast receiver includes a tuner unit 401, a demodulator 402, a demultiplexer 403, a signaling information processor 404, an application controller 405, an external input receiver 409, a processor 410, and a controller. 415, a UI controller 416, a storage unit 408/417, a mixer unit 418, an output formatter unit 419, and a display module 420. An example of the digital broadcast receiver is a digital television receiver. In the digital broadcast receiver according to the present invention, some components may be excluded from the components shown in the accompanying drawings, or vice versa. In addition, the above components may be merged as necessary to function as one configuration. In addition, the application controller 405 includes a channel-related channel manager 406 and a channel map 407, and the processor 410 includes an audio / video decoder 411/412, a scaler 413, and a video processor 414. ) May be included. In addition, the digital broadcast receiver may include a hardware configuration or a software module for format conversion according to the present invention in one or more configurations.

As described above, the digital broadcast receiver of FIG. 4 may also process typical 2D content and 3D content that are not format converted. In particular, when the content included in the received broadcast stream is 2D content, the digital broadcast receiver is configured to bypass the input formatter unit 419 by, for example, a configuration specialized for processing 3D content. By controlling, it may have backward compatibility with a conventional digital broadcast receiver.

In connection with the present invention, the content may be provided to the digital broadcast receiver in various forms through various routes. For example, the content may be provided to the digital broadcast receiver from an external device, or may be provided in a broadcast signal.

In the former case, the processing of the content is as follows.

The external input receiver 409 receives content from an external device connected to the digital broadcast receiver through various protocols and transmits the content to the application controller 405. The application controller 405 transmits content input in at least one or more configurations of the processor 410, the UI controller 416, the mixer 418, and the display module 420, and information about the content.

When the input content is delivered to the processor 410, the video processor 414 in the processor processes the transmitted content and transmits the at least one of the controller 415 and the mixer 418 or the application controller 405 to the application controller 405. do. In this case, the processing may be used to mean, for example, determining an attribute such as a type, a personality or a format of the corresponding content, and performing a necessary operation according to the determined attribute of the content. Here, the attribute of the content may be determined by various methods. If there is attribute information in the content, the attribute of the content is determined based on the extracted attribute information. Otherwise, the attribute of the content is determined. It may be judged by other methods or on its own basis for appropriate subsequent processing.

In the latter case, the content processing process is as follows.

The tuner 401 tunes a specific channel to receive a digital broadcast signal including a content, that is, a broadcast stream, from the tuned channel.

The demodulator 402 demodulates the demodulation scheme corresponding to the modulation scheme of the received digital broadcast signal.

The demultiplexer 4206 demultiplexes audio / video data and signaling information from the demodulated digital broadcast signal and outputs the demultiplexed signals to the audio decoder 412, the video decoder 411, and the signaling information processor 404, respectively. Here, the demultiplexer 4206 can demultiplex the digital broadcast signal by filtering using a PID (Packet IDentifier). In addition, the signaling information is described by taking SI information such as PSI / PSIP (Program Specific Information / Program and System Information Protocol) as an example.

The signaling information processing unit 404 processes the input signaling information and outputs the signal in at least one of the channel manager 406, the controller 415, and the mixer 418. In this case, the signaling information processor 404 may store the processed signaling information including a database therein as necessary.

The application controller 405 generates a control signal and transmits it to a required configuration or generates related OSD data so that a function corresponding to an external input can be performed through a remote controller or a front panel. It may be controlled to be output through the 420.

The channel manager 406 may form a channel map 407 based on the input signaling information, in particular, channel related information, and control the tuner 401 to tune a specific channel.

The first storage unit 408 may receive and store specific data from the application control unit 405, or may store specific data of the updated channel map 407.

The processing unit 410 is responsible for the basic processing of the input content. Here, the basic processing means processing for forming a basis for the form or additional processing that can be output from the display module 420 according to the format or attribute of the content. Examples of the basic processing include audio decoding, video decoding, Scaling, video processing, and the like. The video / audio decoders 411 and 412 decode the input video / audio data in a manner corresponding to an encoded manner. The scaler 413 scales the input data to adjust the size of the signal which can be processed later. The video processor 414 performs video processing on the input video data according to the output form. The audio / video data input above may go through each configuration in the processing unit, but may be processed only in a specific configuration as necessary, and may not necessarily be sequentially processed according to the reference numerals.

The controller 415 may control all operations of the system as a whole. For example, the controller 415 controls the processing unit 410 based on the input signaling information, so that the content input to the processing unit 410 can be appropriately processed. In addition, the control unit 410 generates a suitable UI (User Interface) corresponding to the characteristics of the content based on the signaling information, and the UI control unit 416 so as to be properly mixed with the content in the mixer unit 418 of the subsequent stage ) Can also be controlled.

The UI controller 416 may receive additional information from the application controller 405 and control it to be stored in the second storage unit 417. Here, the additional information may include information related to content received and transmitted by the application controller 405, OSD data, 2D / 3D UI, and the like. The UI controller 416 also extracts a UI to be output along with the content output from the processor 410 from the second storage unit 417 under the control of the controller 415 and outputs the UI from the processor 410, for example. It may be output to the mixer 418 to be output in synchronization with the content to be synchronized.

The control unit 415 may also determine the format or property of the corresponding content based on the signaling information about the input content, determine whether the corresponding content is 2D content or 3D content, and accordingly process them in the subsequent components accordingly. The control signal can be output.

Under the control of the controller 415, the UI controller 416 controls to extract identification information identifying the 3D content that is pre-stored in the second storage unit 417, and 3D identified using the extracted identification information. Controls the content to be displayed on the UI distinguished from other content. For example, the UI controller 416 may generate and output the OSD data to be output at an appropriate position on the preview image or thumbnail image on the UI.

The mixer 418 mixes input data based on inputs of the signaling information processor 404, the processor 410, and the UI controller 416.

The output formatter 419 re-configures the mixed data according to the display frequency of the display module 420. In this case, the output formatter 419, for example, bypasses the 2D content and transfers the output formatter 4420 to be immediately output from the display module 420. For the 3D content, the output formatter 419 transmits the format and the output frequency of the display module 420. Therefore, it can be operated as a 3D formatter configured to be processed in a 3D format. The output formatter 419 may also generate a synchronization signal according to the output signal from the display module 420 of the reconstructed content, and output the generated synchronization signal to an external device required for viewing the corresponding content. As such an external device, there may be, for example, shutter glasses 421 required for viewing 3D content.

The display module 420 outputs a signal input according to the display frequency. Here, the display frequency includes a variety of frequencies, such as 120, 240, 480 Hz.

In addition to the configuration of the digital broadcast receiver described above, FIG. 4 further illustrates a configuration for properly viewing the 3D content according to the format of the 3D content separately output. In FIG. 4, shutter glasses 421 are shown for viewing 3D content in a passive manner. Here, the shutter glasses 421 operate in accordance with the synchronization of the 3D content output through the display module 420 according to the synchronization signal transmitted from the output formatter unit 419, so that the user can freely enjoy the 3D content. The shutter glasses 421 may further include a receiver (not shown) for receiving a synchronization signal from the output formatter 419.

2D / 3D conversion (2D TO  3D Conversion )

In the above, the processes of processing various contents in the digital broadcasting receiver have been described. Hereinafter, a process of converting and processing 2D content into 3D content will be described.

5 is a conceptual diagram illustrating an example of a process of converting 2D content into 3D content and processing the digital broadcast receiver according to the present invention.

Converting a format from 2D content to 3D content means that not only can the existing 2D content be recycled without a lot of 3D content, but also the quality of the content can be improved according to the characteristics of the content. There is a necessity, and in addition, it is possible to meet the needs of the user and various methods are being studied as one of the ways to improve the performance of the receiver.

These methods are largely divided into a method of chipping into hardware and including a separate configuration in a receiver and a software process using a conversion algorithm. Although each method has advantages and disadvantages, in the present specification, the latter method will be described as an example for convenience of description. However, it is obvious that the latter method may be processed by hardware on a system on chip (SoC).

In this regard, the 2D content part may include things that are already widespread, such as 2D video, 2D animation, 2D still image, and 3D video of the corresponding 3D content part as shown after 2D / 3D conversion according to the present invention. The format will be converted to 3D animation, 3D still image, etc.

The conversion part 520 converts the input 2D content into 3D content in software. That is, the conversion part 520 is described as a software module composed of a plurality of processes or a 2D / 3D conversion unit for convenience of description.

Referring to FIG. 5, the 2D / 3D converter 520 is largely composed of three steps.

As a first process, there is a motion analysis process 522. The first process analyzes operating characteristics of the input 2D content. In the above, the motion analysis may be performed, for example, in a frame unit or a predetermined specific unit, and for this, additional information regarding the corresponding content may be referred to. Here, the additional information may be, for example, information added by the transmitter for 3D conversion of the corresponding content, which may be transmitted in the form of signaling information transmitted through a broadcast signal at the transmitter.

As a second process, there is a depth estimation process (2D to Depth) 524. In the second process, depth information, that is, depth is estimated to have an optimal 3D effect based on the operation characteristics analyzed for the corresponding content in the above-described first process. Here, the digital broadcast receiver may generate and store a depth map based on the estimated depth, and the depth estimation process 524 may be estimated based on a previously stored depth map. In contrast, the depth map may be received and stored through the transmitter or estimated using the stored depth map.

A third process is the Outlining & Refling 526 (2D plus Depth to 3D). The depth estimated as described above is applied to the corresponding content. To this end, the 2D content is outlined and reflipped to add a depth to the planar 2D content to convert to 3D content.

The above-described 2D / 3D conversion process is illustrated as an example, and each of the above processes is not necessarily performed sequentially. For example, certain processes may be added, if necessary, or some of the processes described above may be omitted. In addition, when performing format conversion on a specific content, the digital broadcast receiver may separately store parameters processed by each process. In this case, by converting 2D content into 3D content in real time and watching and storing the converted 3D content separately, related parameters are stored, which is useful when converting the same or similar content, thereby enabling faster processing. Such parameter information may be received and stored from the outside if the digital broadcast receiver includes a function such as an IPTV receiver connected to an external network such as an IP network. In addition, the converted content may be stored separately or alternatively from the original 2D content in consideration of a user's setting or storage space.

In processing the content converted according to the above-described conversion algorithm, the digital broadcast receiver may generate and manage additional information necessary for performing various functions of the corresponding content. For example, such additional information may include a stream index, a thumbnail image, additional information, and the like. In addition, the additional information may include format information of the corresponding content, for example, information identifying whether a single stream format or a dual stream format. In the case of the single stream format, information indicating one of a side by side format, a top / bottom format, a checker board format, an interlaced format, and a frame sequential format may be further included. In addition, in the case of the dual stream format, the terminal may further include information indicating one of left, right, left, delta, left, and depth formats. In addition, the additional information may include information indicating that the corresponding content is converted from the original 2D content to 3D content.

3D time machine  function

The above-described 2D / 3D conversion can further enhance the utility of the digital broadcasting receiver to the user. For example, the digital broadcast receiver may process the format conversion in real time or non-real time according to a user's selection. In addition, when the digital broadcast receiver includes a time machine function, such a format conversion may be performed not only in the corresponding content but also in a specific section unit within the corresponding content.

In the following, for example, the 3D time machine function will be described with reference to Table 1 below. When performing the following functions, the 3D format conversion may be simultaneously performed on the corresponding content itself or a section of a specific unit by controlling the corresponding content according to a user's selection.

function Explanation Remarks recording Instant recording Instantly record what you're watching Record time setting Scheduled recording Choose from EPG HDD space indication Usage Indicator: HD, SD, 3D Add 3D Message output Warning Message Watch & Record Record channel B while watching channel A (Dual Tuner / IPTV) Quick Setup UI Play & Record Record A channel (or Content) while viewing recorded content Play & 2D to 3D Conversion Save selected 2D-to-3D transformation while viewing content 3D Dual Mode added Play Play recording Play by selecting from the content list Pause Pause Fast forward X2, x5, x20, x50, x300 Fast backward X2, x5, x20, x50, x300 Adjust playback speed 1/2 Forward Skip Go to the progress bar Backward skip Go to the progress bar Time shift Default Always time shift User selection User needs time shift on Repeat Selected Section Repeat PIP PIP Positioning PIP Position Up, Down, Left, Right Change PIP size Change PIP size PIP Housewife Switching Switch between Main and Sub screens Search function Genre, series, sport event, etc Split screen 2 screen splits

The digital broadcast receiver may perform a 3D time machine function as shown in Table 1 according to the present invention. Here, the 3D time machine function includes a recording function, a viewing function & a recording function, a playback & recording function, a playback & 2D / 3D conversion function, a playback function, a time-shift function, a repeat function and a picture in picture ), Search, and split screen functions. In addition, each function also includes a process of converting 2D content into 3D content in real time or non-real time in relation to the present invention.

The recording function includes an instant recording function, a reservation recording function, a hard disc drive (HDD) space display function, a recording time conflict notification function, and the like. The instant recording function is a function of controlling to immediately record a screen currently being viewed, and may additionally set a recording time if necessary. The reservation recording function is a reservation recording function for content selected through an electronic program guide (EPG). In this case, the content is recorded at the broadcast time of the selected content with reference to the EPG. The HDD space display function provides various information about the space of the HDD used to perform the time machine function. For example, information about a total storage space of the HDD space, a currently available storage space, a storage space for each category based on a usage indicator, and a storage space currently available in the storage space may be included. In addition, the category (category) in the above may be defined according to various criteria, for example, as set by the user's settings or default, for example, such as HD, SD, 3D, 2D, 2D / 3D conversion, respectively Information about the currently used storage space and available storage space can be defined for. The message output function refers to a function of separately configuring OSD data or UI and outputting a message required for recording. Such messages include, for example, a warning message when the recording times selected are in conflict with each other, a warning message when the storage space is insufficient, a message required for selecting a storage space of the recorded content, and the like. All messages can be included.

The viewing & recording function refers to recording channel B while watching channel A, for example. In this case, the receiver will have to be equipped with IPTV or multiple tuners.

For example, the playback & recording function refers to recording a specific channel or other content different from the content while playing back pre-recorded content.

The playback & 2D / 3D conversion function refers to, for example, converting the content into 2D / 3D and storing the content while playing the content. In this case, 3D dual mode may be added. The function can be variously divided as follows. For example, 2D / 3D conversion of 2D content input or pre-stored in real time in real time, the playback after the playback, 2D / 3D conversion after the playback of the 2D content played in real time, and stores all of the corresponding content 2D / 3D At least one of the conversion / storage and 2D / 3D conversion / storage of the selected content in real time or non-real time as described above may be used. The selected part may be, for example, a frame unit, which may be determined by a user's selection.

Playback function includes playback of recordings, pause function, fast forward function, fast forward function, playback speed adjustment function, forward skip function and backward skip function. This may be included. In the above, the recording playback function is, for example, a function of outputting a list of recorded contents and playing a selected content from the outputted list. In the present invention, the recorded contents list is converted to 2D / 3D together with 2D content and 3D content. The content may also be provided separately.

The forward fast forwarding function and the reverse fast forwarding function perform forward or reverse forward functions at, for example, 2 times, 5 times, 20 times, 50 times, and 300 times. If necessary, forward or reverse can be performed at double speed according to user's setting or control.

The playback speed adjustment function refers to playing content according to a playback speed set in advance or according to a user input. For example, there may be 0.5 times reproduction, 2 times, 3 times, and the like.

The forward skip function or the reverse skip function refers to moving or skipping from a current position to a specific position, for example, according to a preset or user input. In this case, the user can set the desired position through the progress bar.

In addition, there may be a bookmark function included in the playback function or as a separate function. The bookmark function refers to displaying a bookmark for a frame (one or more continuous or intermittent) frames according to a user's input among contents to be played. In this case, a separate bookmark list may be provided or provided on the progress bar. In addition, information about the bookmarked frame (s) may be additionally defined according to an input or setting of a user. When the bookmark thus provided is selected, the receiver may provide information about the bookmark and move to the location of the bookmark.

The time shift function may include, for example, a default function and a user selection function. The default function refers to always time shifting, and the user selection function refers to time shifting only when selected according to a user's needs.

The repeating function may include, for example, an entire repeating function of the corresponding content and a repeating function of the selected section. In addition, the repetition function may also be set once or multiple times depending on the input and setting of the user.

The Picture In Picture (PIP) function may include, for example, a PIP positioning function, a PIP resizing function, and a PIP housewife switching function. The PIP position selection function is a function for controlling the position of the main screen of the screen provided by the PIP, and can be moved up, down, left, and right from the default position. It may be moved to a specific position at a time, or may be moved step by step. The PIP size changing function is a function to change the size of the screen provided by the PIP to be larger or smaller from the default size, and may be sequentially changed by a predetermined amount according to a setting. It may be changed at one time. In addition, when the PIP size is changed, for example, when the PIP size is requested to be changed to the size of 1/2 or more of the main screen, the main picture and the sub picture may be set to be changed. . The PIP housewife switching function refers to a function of switching between main / sub screens, that is, main / sub switching of the PIP screen.

The search function is for searching for contents to which the time machine function is applied. Such a search may be performed according to various criteria such as genre, series, playback time, format, and the like. have. For example, in the case of a format, 2D content, 3D content, and content converted from 2D to 3D format may be classified and searched.

In addition, the split screen function refers to splitting two screens.

6 is a block diagram of a digital broadcast receiver for implementing a 3D time machine function according to the present invention.

Referring to FIG. 6, in the process of implementing the 3D time machine function in the digital broadcasting receiver, the 2D / 3D conversion process is divided into a real time conversion process and a non-real time conversion process.

First, the process of processing in real time is output via the 2D stream manager 602, the 2D / 3D stream conversion 603, the 3D stream manager 604, or stored in the storage via the record manager 605 (609). Becomes In contrast, the reprocessed 2D stream stored in the storage unit 609 via the 2D stream manager 602 and the record manager 605 via the 2D / 3D stream converter 606 and the 3D stream manager 604 again through the record manager. 605 is stored in the storage unit 609 as a 3D stream.

Hereinafter, the function of each configuration will be described.

The 2D stream manager 602 reprocesses the input 2D stream into a form for DVR operation. In this case, the 2D stream manager 602 generates at least one of a stream index, a thumbnail, and stream information in relation to the 2D stream to be reprocessed. In addition, the 2D stream manager 602 may reprocess an analog source received through the MPEG encoder 601, and the 2D digital source may be an antenna or a network interface through a terrestrial wave, a cable, a satellite, or an IP medium. It can be received by and reprocessed.

The 2D / 3D converter 603/606 receives the reprocessed 2D stream and converts it into a 3D stream. Here, the conversion may be, for example, according to the above-described conversion algorithm. In this case, both real-time or non-real-time conversion is possible.

The 3D stream manager 604 stores the converted 3D stream in the storage 609 or outputs the next stage.

The record manager 605 receives stream indexes, thumbnails, and stream information generated by the 2D stream manager 602 and divides, deletes, merges, and converts the data into an appropriate form for the DVR operation. 609).

The storage manager 607 performs operations such as file system operation, integrity check, and periodic capacity check of the storage unit 609.

The content manager 608 performs a content editing function such as a stream index, thumbnail, and stream information stored in the storage 609, a content search / list structure function using a database, and the like.

The stream upload manager 610 performs functions such as playback and trick play using the stream index, thumbnail, stream information, and the like stored in the storage unit 609.

In the above, the stream index is DVR additional information for all pictures constituting the stream, and may include information such as a picture type, a stream offset, a picture characteristic, and the like. The thumbnail is an image obtained by reducing a still picture of the stream to a smaller size and may include an extraction position and additional information in the stream. The stream information may include all additional information for DVR operation such as stream playback and time and size.

Referring to FIG. 6, the usage scenarios will be described. A PVR function of converting and storing a 2D stream into a 3D image according to a consumer's selection and effectively displaying it on a record list may be applied, and the conversion state of the 3D content may be LED. Can be displayed in color. In this case, it may be displayed in yellow when the conversion is in progress, green when the conversion is completed, or red when a problem occurs during the conversion. In addition, the input and stored content is classified and stored according to the type, and this is displayed on the recording list to be divided into a list of typical 2D content, 2D / 3D converted content, and typical 3D content to be displayed to the user. It may be. In this case, the playback menu bar of the list-up 3D content may be configured to add a 3D UI effect to give a realistic stereoscopic effect. In the case of the PVR management process, the 2D and 3D streams can be managed by recording, storing, and controlling content, and the streaming process for displaying 2D and 3D content is performed by the stream index and thumbnail generated by the 2D stream manager. The stream upload manager 610 may perform the reprocessed 2D, 3D stream, and additional stream information. In addition, to support DVR Ready function, it works on various display devices such as PC, LED / LCD / PDP monitor and / or TV, Projector using external HDD, USB memory stick, etc. Can be supported.

UI  How to Provide

FIG. 7 illustrates an embodiment in which a 3D UI is added for 3D content according to the present invention, and FIG. 8 illustrates a 3D UI related to a thumbnail in FIG. 7 in more detail.

7 and 8 are examples of UI displays for providing an appropriate UI for 2D content, 3D content, and 2D / 3D converted content, unlike the UI provided by the conventional digital broadcasting receiver for 2D content.

Referring to FIG. 7, some representative examples of adding a 3D UI for 3D content are illustrated. For example, thumbnail images, progress bars, memory free space indications and book marks are illustrated. Hereinafter, each of which includes the 3D UI will be described.

For example, the thumbnail image may use a thumbnail image generated by the 3D stream manager () of FIG. 5. A more detailed description thereof will be described later.

When the content to be played is typical 3D content or 3D content that is converted from a 2D stream to a 3D stream and played back, the progress bar is configured in 3D accordingly. In this case, the progress bar composed of 3D is preferably manufactured in advance and stored in the storage unit. In FIG. 7, in the progress bar, 1 indicates a playback mode, 2 indicates a current playing position, 3 indicates a content start time, 4 indicates an elapsed time for the corresponding content, and 5 indicates a user's setting. According to the bookmark, and finally 6 indicates the end time of the content.

Regarding the display of the free memory space, in order to implement the time machine function or the PVR function, the digital broadcast receiver should basically have a hard disk (HDD). When providing information on the free space of the hard disk, that is, the memory, when performing a recording function or a time machine function according to a user's request, accurate information must be provided for smooth operation of the corresponding function. Regarding providing information about such free memory space, it has conventionally been only to provide recordable time for HD and SD contents. In the present invention, it is intended to display the recordable time for the 3D content in addition to the HD and SD content. Here, the 3D content may mean a typical 3D content or may also include 3D content converted from 2D to 3D. Alternatively, it is possible to provide a recordable time separately from 3D contents converted from 2D to 3D separately from typical 3D contents.

In this regard, in the present invention, when an external storage device such as an external hard drive or a USB memory stick is connected to perform a DVR-Ready function, the memory free space of the connected external storage device may also be displayed and provided to the user. This is because the contents of the digital broadcast receiver can be copied or moved to an external storage device as necessary, so that the user can be provided by providing such information. In this case, as described above, it is preferable to provide not only SD / HD but also information on 3D content.

In relation to the bookmark display, a bookmark display according to a user's request may be provided in various forms. 7 exemplarily provides a bookmark point in the progress bar. In this case, when the bookmark is displayed according to the progress bar or the like, the digital broadcast receiver may separately provide only the bookmarked contents by date, time, and content to the user. In addition, the present invention provides a bookmark list according to a user's request, and when the user selects a specific bookmark among a plurality of bookmark contents in the bookmark list, additional information (including user comments) along with a still image of the bookmarked contents is provided. When the playback request is received in the state, the content including the corresponding still image may be played back from the storage after the still image. In addition, since the content in which the bookmark exists is likely to be basically played by the user, the digital broadcasting receiver may provide a separate UI when a plurality of bookmarks exist in the corresponding content when a request for playing the corresponding content exists. It can also be displayed on the progress bar to seek user convenience.

Although the above descriptions are not mentioned otherwise, in the case of typical 3D content or 2D to 3D converted content, each of the provided information may be provided in 3D.

In particular, FIG. 8 illustrates an example in which the recording list 800 is provided according to the present invention according to a user's request. The recording list 800 is divided into four parts for convenience of description.

First, the top layer 801 of the recording list 800 shows the storage space free indication 805.

In FIG. 8, "Available Time: HD 01: 10 / SD 02: 16 / 3D 00:45" is displayed, where HD is 1 hour 10 minutes, SD is 2 hours 16 minutes, and 3D is 45 minutes. It indicates that there is enough free space left in the storage space. As described above, the 3D may include all the storage space for the content converted from 2D to 3D in addition to the typical 3D content, separately, "Available Time: HD 01: 10 / SD 02: 16 / 3D 00: 45 / 2D-3D 01:00 ". In addition, a progress bar can be provided below to provide free space in the storage space in the form of graphics when selecting SD, HD, 3D and 2D-3D.

The lowest layer 804 in the next higher layer 802 is information on the recording list in the vertical form. However, as described above, the description will be made separately for each layer for convenience.

The next higher layer 802 may be provided with information about each of the recording lists. Although only Title, time information, and format to resolution information (SD, HD, 3D, or SD, HD, 3D, 2D-3D) are shown in FIG. 7, other additional information may be further included. As the additional information, for example, various information may be provided, such as a total playing time, whether a bookmark exists and the number of bookmarks, whether a corresponding content is already played, and information about another recorded series.

Gradually higher layer 803 is provided with thumbnail images of each recording. In addition, at the ends of the left and right sides, a page scroll key may be provided for the convenience of navigation when all the recordings cannot be provided on one screen at a time. In addition, a key for scrolling only one content may be provided between each recording.

The lowest layer 804 may be provided with a background live image of the UI, rather than providing special information.

In FIG. 8, for example, when a specific recording 811 is selected, the digital broadcast receiver provides a vertically activated window, and provides information on which of the recording lists corresponds to the indicator of the selected recording in the window. The thumbnail image can be provided by highlighting it unlike other recording lists. In addition, various functions may be provided under the highlighted thumbnail image for controlling the recording. With this function, in FIG. 8, the play function of the recording, the delete function for removing the recording from the recording list and the storage space, and the title edit (the user can edit the desired title for the recording) Various functions may be provided, such as a title edit function, a detailed information output request function for a corresponding recording, and a Data Video Home System (DVHS) output function. When the request for executing the detailed information is received, the digital broadcasting receiver may provide additional information, for example, the above-described stream index information, stream information, and thumbnail information, which were stored together when storing the recording. Information related to the recordings may be received from and provided.

9 to 11 are flowcharts illustrating each embodiment of a process of converting a format of content in a digital broadcast receiver according to the present invention.

FIG. 9 illustrates an example of a method of processing a stream including content in a digital broadcasting receiver. The input 2D stream is reprocessed (S901), and the reprocessed 2D stream is converted into a 3D stream according to a predefined method (S902). ), Identification information including at least one of stream index information, thumbnail image information, 3D format information, and additional information is generated for the converted 3D stream (S903), and the converted 3D stream is stored together with the identification information ( S904).

FIG. 10 illustrates another example of a method for processing a stream in a digital broadcasting receiver, in which an input 2D stream is reprocessed (S1001), and at least one or more of stream index information, thumbnail image information, 3D format information, and additional information for the reprocessed 2D stream are illustrated. After generating the identification information including (S1002), and storing the reprocessed 2D stream with the identification information (S1003), and extracts the stored 2D stream (S1004), and extracts the extracted 2D stream in accordance with a predefined method In operation S1005, the 3D stream is output (S1006).

FIG. 11 relates to a method of converting a 2D stream into a 3D stream according to a predefined method in a digital broadcasting receiver (S1101) and outputting the converted 3D stream. The stream index information and thumbnail image information of the converted 3D stream are illustrated in FIG. Generating identification information including at least one of 3D format information and additional information (S1102), and providing a UI configured to display the converted 3D stream separately from other streams based on the identification information (S1103). The converted 3D stream is output according to an external input through a UI (S1104).

As described above, according to the present invention, as the performance of the receiver increases, applications that can be provided by the receiver are gradually increasing. Therefore, various and useful applications are simply provided with only the corresponding application engine while maintaining mutual compatibility in the receiver. It can be driven to enhance the user's convenience.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention.

Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative.

The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

401: tuner portion 402: demodulation portion
403: demultiplexer 404: signaling information processor
405: application control unit 409: external input receiving unit
410: processing unit 415: control unit
416: UI control unit 408/417: storage unit
418: mixer section 419: output formatter section
420: display module

Claims (30)

Reprocessing the input 2D stream;
Converting the reprocessed 2D stream into a 3D stream according to a predefined manner, and generating identification information including at least one of stream index information, thumbnail image information, 3D format information, and additional information for the converted 3D stream; And
And storing the converted 3D stream together with the identification information. The method of claim 1,
The stream index information,
And at least one or more of picture type information, stream offset information, and picture characteristic information for each picture constituting the stream. The method of claim 1,
The thumbnail image information,
And a thumbnail image, which is an image obtained by reducing a still image of a stream to a smaller size, and at least one of information and additional information about an extraction position of the thumbnail image in the stream. The method of claim 1,
The stream information,
A stream processing method in a digital broadcasting receiver including at least one of reproduction information, time information, and size information of a stream. The method of claim 1,
The 3D format information,
And a identification information for identifying an output format to which the converted 3D stream belongs among a single stream output format and a dual stream output format. The method of claim 1,
The predefined method is
Performing a motion analysis on a predetermined 2D stream in a predetermined unit and estimating depth information based on the result of the motion analysis; and
And applying a depth to the 2D stream based on the estimated depth information and converting the 2D stream into a 3D stream. Reprocessing the input 2D stream and generating identification information including at least one of stream index information, thumbnail image information, 3D format information, and additional information for the reprocessed 2D stream;
Storing the reprocessed 2D stream with the identification information;
Extracting the stored 2D stream and converting the extracted 2D stream into a 3D stream according to a predefined manner;
Outputting the 3D stream; and processing the stream in a digital broadcast receiver. The method of claim 7, wherein
The stream index information,
And at least one or more of picture type information, stream offset information, and picture characteristic information for each picture constituting the stream. The method of claim 7, wherein
The thumbnail image information,
And a thumbnail image, which is an image obtained by reducing a still image of a stream to a smaller size, and at least one of information and additional information about an extraction position of the thumbnail image in the stream. The method of claim 7, wherein
The stream information,
A stream processing method in a digital broadcasting receiver including at least one of reproduction information, time information, and size information of a stream. The method of claim 7, wherein
The 3D format information,
And a identification information for identifying an output format to which the converted 3D stream belongs among a single stream output format and a dual stream output format. The method of claim 7, wherein
The predefined method is
Performing a motion analysis on a predetermined 2D stream in a predetermined unit and estimating depth information based on the result of the motion analysis; and
And applying a depth to the 2D stream based on the estimated depth information and converting the 2D stream into a 3D stream. In the method for converting a 2D stream to a 3D stream in a digital broadcast receiver according to a predefined method, and outputting the converted 3D stream,
Generating identification information including at least one of stream index information, thumbnail image information, 3D format information, and additional information about the converted 3D stream;
Providing a UI configured to display the converted 3D stream separately from other streams based on the identification information; And
And outputting the converted 3D stream according to an external input through the UI. The method of claim 13,
The stream index information,
And at least one or more of picture type information, stream offset information, and picture characteristic information for each picture constituting the stream. The method of claim 13,
The thumbnail image information,
And a thumbnail image, which is an image obtained by reducing a still image of a stream to a smaller size, and at least one of information and additional information about an extraction position of the thumbnail image in the stream. The method of claim 13,
The stream information,
A stream processing method in a digital broadcasting receiver including at least one of reproduction information, time information, and size information of a stream. The method of claim 13,
The 3D format information,
And a identification information for identifying an output format to which the converted 3D stream belongs among a single stream output format and a dual stream output format. The method of claim 13,
The predefined method is
Performing a motion analysis on a predetermined 2D stream in a predetermined unit and estimating depth information based on the result of the motion analysis; and
And applying a depth to the 2D stream based on the estimated depth information and converting the 2D stream into a 3D stream. The method of claim 13,
The converted 3D stream,
A stream processing method in a digital broadcasting receiver which is converted in real time from a stream received through a currently tuned channel or from a pre-stored 2D stream. In a digital broadcast receiver,
Receiving unit for receiving a 2D stream;
A first stream manager for reprocessing the 2D stream and generating reference information for the reprocessed 2D stream;
A conversion unit for converting the reprocessed 2D stream into a 3D stream according to a predefined method;
A second stream manager for generating reference information on the converted 3D stream and controlling storage and playback of the 3D stream;
A storage unit for storing the reprocessed 2D stream and the converted 3D stream together with identification information generated for each stream; And
And an output unit for outputting the converted 3D stream. The method of claim 20,
Wherein,
And a digital broadcast receiver for receiving at least one of a reprocessed 2D stream from a first stream manager and a preprocessed 2D stream extracted from a storage unit and converting the received 2D stream into a 3D stream. The method of claim 20,
Reference information about the 2D stream,
And at least one of stream index information, thumbnail image information, 3D format information, and additional information for the 2D stream. The method of claim 20,
Reference information about the 3D stream,
And at least one of stream index information, thumbnail image information, 3D format information, and additional information for the converted 3D stream. The method of claim 22 or 23,
The stream index information,
And at least one of picture type information, stream offset information, and picture characteristic information for each picture constituting the stream. The method of claim 22 or 23,
The thumbnail image information,
And at least one of a thumbnail image which is an image obtained by reducing a still image of a stream to a smaller size, and at least one of information and additional information about an extraction position of the thumbnail image in the stream. The method of claim 22 or 23,
The stream information,
And at least one of reproduction information, time information, and size information of the stream. The method of claim 22 or 23,
The 3D format information,
And identification information identifying an output format to which the converted 3D stream belongs, among a single stream output format and a dual stream output format. The method of claim 20,
The predefined method is
A motion analysis is performed on the input 2D stream in a predetermined unit, the depth information is estimated based on the result of the motion analysis, and the depth is applied to the 2D stream based on the estimated depth information. To digital broadcast receivers. The method of claim 20,
And a controller configured to generate a UI configured to display the converted 3D stream separately from other streams. The method of claim 29,
The control unit,
A digital broadcast receiver for controlling to display the thumbnail image information, the free space of the storage unit, the differentiated 3D stream is differentiated from other streams based on reference information about the stored 3D stream.

Images