KR20070043372A - System for management of real-time filtered broadcasting videos in a home terminal and a method for the same - Google Patents

Abstract

The present invention relates to a broadcasting video management system and a method for real-time filtered broadcasting in a home terminal, comprising: a broadcasting input unit for obtaining a broadcasting program from an external digital broadcasting channel in a system for real-time filtering broadcasting video management in a home terminal; A user preference manager for managing user preferences registered in the home terminal, a content filtering unit for real-time filtering a broadcast program obtained from the broadcast input unit according to a user preference provided from the user preference manager, an external digital broadcast signal, The EPG management unit for managing the obtained electronic program guide (EPG) information of the broadcast program for each user of the home terminal, and the additional information about the scene filtered by the content filtering unit through the EPG management unit to obtain broadcast metadata To create a broadcast menu An access unit generation unit for generating an access unit by combining a data generation unit, broadcast metadata for a scene filtered from the content filtering unit, and a scene generated from the broadcast metadata generation unit, and an access generated in the home terminal; An access unit manager for managing units, an access unit decoder for decoding and parsing the access units managed by the access unit manager into media resources and broadcast metadata, and a control unit for controlling the units collectively, TV viewers can organize and search video albums that can effectively browse video segments according to their tastes, and effectively maintain compatibility between home terminals and mobile communication terminals in the consumption of broadcast contents.

Home Terminal, Video Segment, Broadcast Multimedia Application Format, Live Broadcast Content Filtering, Metadata, Video Album, Access Unit

Description

System for management of real-time filtered broadcasting videos in a home terminal and a method for the same}

1 is a block diagram illustrating a broadcast video management system filtered in real time in a home terminal according to an embodiment of the present invention.

2 is a conceptual diagram illustrating a structure of an access unit applied to an embodiment of the present invention.

3 is a conceptual diagram illustrating the structure of a broadcast multimedia application format (MAF) using a plurality of access units applied to an embodiment of the present invention.

4 is a conceptual diagram illustrating a structure of broadcast metadata applied to an embodiment of the present invention.

5 is a flow chart illustrating a personalized album configuration based on preferences for a user.

6 is a flowchart for explaining a video search by a user's query;

*** Explanation of symbols on main parts of drawing ***

100: broadcast input unit, 150: user preference management unit,

200: content filtering unit, 250: EPG management unit,

300: broadcast metadata generator, 350: access unit generator,

400: access unit management unit, 450: access unit decoding unit,

500: communication access unit, 550: external MAF input unit,

600: format conversion unit, 650: broadcast MAF generation unit,

700: display unit, 750: control unit

The present invention relates to a system and method for managing broadcast video in real time filtered in a home terminal having a TV reception function, and more particularly, to a filtered video segment and corresponding broadcast metadata in a home terminal. Can be combined into a new type of video format using the Multimedia Application Format (MAF) specification, which can be filtered in real time from home terminals that can organize personalized video albums or facilitate content-based search / indexing according to TV viewer preferences. A broadcast video management system and method thereof are provided.

In order to pursue advanced broadcast services since the beginning of digital broadcasting, efforts have been made to transmit electronic program guide (EPG) information together with broadcast signals.

In general, the EPG information includes basic program information such as a broadcast time, a title, a simple synopsis, and a main character of a program to be broadcast in a broadcast channel.

Currently, the EPG is produced by each service provider or generated separately by a broadcaster. However, the EPG provides limited information on schedules of broadcast programs, thereby showing limitations of additional information for each broadcast program to TV viewers.

As a solution to the above problem, metadata that can provide detailed additional information related to a broadcast program has been developed. The metadata format is standardized by adopting the Multimedia Description Scheme (MDS), which is standardized in MPEG-7, by the TV-Anytime Forum (TVAF), which is mainly used by broadcasters and research institutes around the world.

In 1999, standardization began and standardization was completed by starting Phase 2 in 2005. The TVAF metadata includes semantic information of a broadcast program, such as program generation information and content specification, scene description, and summary information, which are not provided by the EPG.

The TVAF metadata information provides TV viewers with information about a broadcast program in advance, thereby enabling personalized TV viewing according to each viewer. However, the metadata has a disadvantage in that the broadcast program must be prepared in advance.

Meanwhile, the pre-produced program is analyzed before broadcast by a content creator or a service provider, indexed, and metadata is produced. However, metadata cannot be provided for live broadcast programs.

Accordingly, in order to solve the problem of the live broadcast program, a real-time broadcast program filtering technology capable of content-based analysis of a broadcast program in a home terminal such as a set-top box or a personal video recorder (PVR) is required. At the same time, there is a need for a technology capable of storing and managing video segments of filtered broadcast programs. For the storage and retrieval of the video segment, a multimedia application format (hereinafter referred to as 'MAF') of MPEG-A (MPEG Application: ISO / ICE 23000), which is currently being standardized, may be used.

The MAF standard actively addresses the needs of the industry by combining non-MPEG standards together with existing MPEG standards (eg, MPEG-1, MPEG-2, MPEG-4, MPEG-7 and MPEG-21). To increase the value of the standard.

The main purpose of the MAF standardization is to provide an opportunity to easily use the MPEG technology in the industry. As a result, it is easy to combine standard technologies that have already been proven without the need to create new standards for application services required by the industry.

Currently, in the MAF standardization activity, MPEG Music Player Application Format (ISO / ISE 23000-2) related to music and MPEG Photo Application Format (ISO / ISE 23000-3) for photo images are in progress. In addition, standardization studies have been proposed for MAF on video, which has increased importance, and its utilization is expected to increase.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and an object of the present invention is to provide semantic information of a video segment filtered from a received broadcast program and various additional information obtainable from a service provider. By encoding to the broadcast multimedia application format (MAF) and decoding the broadcast multimedia application format (MAF) file so that the user can effectively browse the multimedia application format (MAF) file according to the structure Real-time filtering on home terminals, which enables TV viewers to organize and search video albums to effectively browse video segments to their tastes, and effectively maintain compatibility between home terminals and mobile terminals in consumption of broadcast content Broadcast video management system And to provide the method.

In order to achieve the above object, a first aspect of the present invention provides a system for managing broadcast video in real time filtered in a home terminal, comprising: a broadcast input unit for obtaining a broadcast program from an external digital broadcast channel; A user preference manager configured to manage user preferences registered in the home terminal; A content filtering unit for filtering a broadcast program obtained from the broadcast input unit in real time according to a user preference provided from the user preference manager; An EPG manager for managing electronic program guide (EPG) information of the obtained broadcast program for each user of the home terminal together with an external digital broadcast signal; A broadcast metadata generator for acquiring additional information on the scene filtered by the content filtering unit through the EPG manager to generate broadcast metadata; An access unit generation unit for generating an access unit by combining broadcast metadata of a scene filtered from the content filtering unit and a scene generated from the broadcast metadata generation unit; An access unit manager configured to manage the access units generated by the home terminal; An access unit decoder for decoding and parsing an access unit managed by the access unit manager into media resources and broadcast metadata, respectively; And a control unit for collectively controlling the respective units.

The display unit may further include a display unit configured to receive a media resource and broadcast metadata decoded and parsed from the access unit decode unit, respectively, and directly provide a user with a broadcast program / scene or broadcast metadata stored in the user.

Preferably, the communication access unit for providing additional information about the scene filtered from the content filtering unit to the broadcast metadata generating unit through access to a communication channel; An external MAF input unit which receives a video multimedia application format (MAF) generated from an external mobile communication terminal through a communication channel of the communication access unit and provides the access unit to the access unit manager for managing the access unit as an access unit; A format conversion unit for receiving the decoded and parsed media resources and broadcast metadata from the access unit decoder and converting the video format of the access unit stored in the home terminal; And a broadcast MAF generator configured to generate a broadcast multimedia application format (MAF) for a mobile communication terminal using the video format converted from the format converter and the broadcast metadata.

Preferably, the content filtering unit extracts audio and visual features of a live program from a broadcast program acquired from the broadcast input unit in real time and performs a pattern recognition process to perform unit of scenes according to the user preference provided from the user preference manager. Is filtered in real time.

Preferably, the format conversion unit converts the video format into a structure suitable for transmitting the access unit stored in the home terminal to an external mobile communication terminal.

Preferably, the broadcast MAF generator provides the generated broadcast multimedia application format (MAF) for a mobile communication terminal to an external mobile communication terminal through a communication channel of the communication access unit.

According to a second aspect of the present invention, there is provided a method for real-time filtered broadcast video management in a home terminal, the method comprising: (a) acquiring a broadcast program from an external digital broadcast channel; (b) filtering the obtained broadcast program in real time according to a preset user preference; (c) managing electronic program guide (EPG) information of the obtained broadcast program for each user of the home terminal together with an external digital broadcast signal; (d) generating broadcast metadata by acquiring additional information about the scene of the filtered broadcast program; (e) generating an access unit by combining scenes of the filtered broadcast program and the generated metadata; (f) managing access units created in the home terminal; And (g) decoding and parsing the managed access unit into media resources and broadcast metadata, respectively.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, embodiments of the present invention illustrated below may be modified in many different forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

FIG. 1 is a block diagram illustrating a broadcast video management system filtered in real time in a home terminal according to an embodiment of the present invention.

Referring to FIG. 1, a broadcast video management, that is, a broadcast multimedia application format (hereinafter referred to as a 'MAF'), which is filtered in real time in a home terminal according to an embodiment of the present invention, is effectively selected. The system for encoding and decoding includes the broadcast input unit 100, the user preference manager 150, the content filter unit 200, the EPG manager 250, the broadcast metadata generator 300, and the access. Unit generating unit 350, access unit management unit 400, access unit decode unit 450, communication access unit 500, external MAF input unit 550, format conversion unit 600, broadcast MAF generation unit 650 The display unit 700 and the control unit 750 are included.

Here, the broadcasts input part 100 may include, for example, a digital broadcasting channel such as terrestrial broadcasting, satellite broadcasting, digital multimedia broadcasting (DMB), or internet protocol television (IPTV). Performs a function of receiving or obtaining various broadcast programs.

The user preference management part 150 performs a function of managing a preference for a user registered in the home terminal.

The content filtering part 200 performs a function of filtering a broadcast program obtained from the broadcast input unit 100 in real time according to a preference of a user provided from the user preference manager 150. do.

The content filtering unit 200 extracts audio and visual features in real time from a broadcast program acquired from the broadcast input unit 100 in real time and performs a pattern recognition process. The user preference management unit 150 may filter in real time according to the preference of the user.

The EPG management part 250, together with an external digital broadcast signal, provides electronic program guide (hereinafter referred to as 'EPG') information on the transmitted broadcast program for each user of the home terminal. Perform management functions.

The broadcasting metadata generating unit 300 broadcasts additional information on the scene filtered by the content filtering unit 200 through the EPG management unit 250 and the communication access unit 500. It acquires from a service provider and generates a broadcasting metadata (Broadcasting Metedata).

In this case, the broadcast metadata may be, for example, in the form of Extensible Markup Language (XML).

The access unit generation unit 350 may perform a scene filtered from the content filtering unit 200, that is, a scene generated from the media resource and the broadcast metadata generation unit 300. A function of generating an access unit by combining broadcast metadata is performed.

The access unit management unit 400 manages the access units generated by the home terminal according to the command of the controller 750, and provides a preference for the user from the user preference manager 150. Receive a personalized video album, or receives the video multimedia application format (MAF) generated from an external mobile communication terminal (for example, mobile phone or PDA) through the external MAF input unit 550 to manage as an access unit Perform the function.

The access unit decode part 450 may access a media unit and a broadcast meta from the access unit managed by the access unit manager 400 when a personalized video album is generated or a video scene is searched according to a user. Decoding and parsing data, respectively, and transmits the data to the display unit 700.

In addition, when the access unit decoder 450 transmits the managed access unit to the mobile communication terminal, the access unit decoder 450 may transmit the decoded media resource and broadcast metadata to the format converter 600.

The communication access part 500 allows a TV terminal to access a communication channel such as an IP network Bluetooth or a memory card, for example, from the mobile communication terminal through the communication channel. Receive the additional information on the filtered scene from the content filtering unit 200 to provide to the broadcast metadata generating unit 300, or the video multimedia application format (MAF) generated from the mobile communication terminal through the communication channel It receives the input and delivers it to the external MAF input unit 550 for management by the access unit.

In addition, the communication access unit 500 may provide a broadcast multimedia application format (MAF) for a mobile communication terminal generated from the broadcast MAF generation unit 650 to the mobile communication terminal through the communication channel.

The external MAF input part 550 receives a video multimedia application format (MAF) generated from the mobile communication terminal through a communication channel of the communication access unit 500 so as to be managed by an access unit. Performs a function provided to the access unit manager 400.

The format conversion part 600 converts a video format into a structure suitable for transmitting an access unit stored in the home terminal to the mobile communication terminal, and decodes each of the access unit decode unit 450. And receiving the parsed media resource and broadcast metadata, converting the video format of the access unit stored in the home terminal, and delivering the converted media format to the broadcast MAF generator 650.

In this case, the video coding scheme (Scheme) is preferably performed in about 3GPP PSS ver.6 or more ISMA 2.0 or more for the broadcast multimedia application format (MAF).

The broadcasting MAF generation part (650) generates a broadcast multimedia application format (MAF) for a mobile communication terminal by using the video format and the broadcast metadata converted from the format converter 600, The broadcast multimedia application format (MAF) for the mobile communication terminal is provided to the mobile communication terminal through the communication channel of the communication access unit 500.

In this case, the broadcast multimedia application format (MAF) preferably includes at least one access unit.

The display part 700 receives a media resource and broadcast metadata decoded and parsed from the access unit decoder 450, respectively, and is stored in the home terminal to a user, that is, a viewer. Alternatively, the broadcast metadata may be directly provided to the user.

The controller 750 may be configured to perform each unit performed by the home terminal, that is, the broadcast input unit 100, the user preference manager 150, the content filter 200, the EPG manager 250, The broadcast metadata generator 300, the access unit generator 350, the access unit manager 400, the access unit decoder 450, the communication access unit 500, and the external MAF input unit 550 ), The format conversion unit 600, the broadcast MAF generation unit 650 and the display unit 700 controls the overall function.

2 is a conceptual diagram illustrating the structure of an access unit applied to an embodiment of the present invention, in which the access unit, which is the minimum unit used and managed in the home terminal, is compatible with the structure of the video multimedia application format (MAF) being standardized. Keep it.

Referring to FIG. 2, an access unit 800 applied to an embodiment of the present invention largely includes media data 810 and a move 820.

Here, the media data 810 has various media resources included in the access unit 800. In this case, the media resources may include a video stream, an audio stream, a subtitle stream, and a preview image.

The move 820 includes a metabox 821 including broadcast metadata 1000 described below related to the media resources, and a track including encoding information such as location information of the media resources. ) 822a to 822c.

In this case, one move 820 may include a plurality of tracks 822a to 822c, and each track 822a to 822c may include encoding information about a corresponding media resource.

3 is a conceptual diagram illustrating a structure of a broadcast multimedia application format (MAF) using a plurality of access units applied to an embodiment of the present invention.

Referring to FIG. 3, the broadcast multimedia application format (MAF) 900 generated by the broadcast MAF generation unit 650 (see FIG. 1) includes at least one access unit 800 (see FIG. 2). That is, one access unit 800 is the smallest unit of broadcast multimedia application format (MAF) 900.

Reference numerals 950a to 950n denote media resources extracted from the respective access units 800 as media resource sets.

Meanwhile, the broadcast multimedia application format (MAF) 900 may include a plurality of media resource sets 950a to 950n.

That is, the broadcast multimedia application format (MAF) 900 may be encoded in a plurality of forms of broadcast metadata associated with one encoded video data.

4 is a conceptual diagram illustrating a structure of broadcast metadata applied to an embodiment of the present invention.

Referring to FIG. 4, the broadcast metadata 1000 applied to an embodiment of the present invention is metadata describing media data 810 (see FIG. 2) having various media resources, and is described in TVAF (TV-Anytime Forum). Contains broadcast metadata that is determined.

A program description 1100 for describing event information of broadcast content filtered by the content filtering unit 200 (refer to FIG. 1) is provided. The program description 1100 includes a program information table 1110 and a group. Information table 1120, program location information table 1130, service information table 1140, credits information table 1150, segment information table 1160, filtering information table 1170, access information table 1180, or At least one table of the usage environment description table 1190 is included.

Meanwhile, TVAF metadata included in the broadcast metadata 1000 is not limited to the metadata.

Here, the program information table 1110 describes basic information about the filtered broadcast content, and includes a title, a keyword, or a genre of the broadcast content. Preferably, the same program generation information is included, but is not limited thereto.

The Group Information Table 1120 describes basic information about the filtered broadcast content, and includes a program such as a title, a keyword, or a genre of the broadcast content. It is preferable to include the generation information, but not limited thereto.

The Program Location Information Table 1130 describes basic information about the filtered broadcast content, and includes a title, a keyword, or a genre of the broadcast content. Preferably, the same program generation information is included, but is not limited thereto.

The service information table 1140 describes information about a service provider and a content creator that transmits corresponding broadcast content, and includes an owner and a name. Or service information such as a valid period, but is not limited thereto.

The Credits Information Table 1150 describes basic information about the filtered broadcast content, such as a title, a keyword, or a genre of the broadcast content. Program generation information is preferably included, but is not limited to such.

The Segment Information Table 1160 describes basic information about the filtered broadcast content, and includes a program such as a title, a keyword, or a genre of the broadcast content. It is preferable to include the generation information, but not limited thereto.

The filtering information table 1170 describes basic information about an event of the filtered broadcast content, and includes event information such as a title or a keyword of the event. Is preferred, but is not limited to this.

In this case, the broadcast metadata representing the filtered event includes information segmenting the temporal structure of media, MPEG-7 audio / motion features required for each event, or keyframes extracted for each segment. (Keyframe) It may include at least one or more of the MPEG-7 image features extracted from the image.

Meanwhile, Table 1 below represents a description structure for expressing broadcast metadata necessary for describing the filtering information table 1170 in, for example, an Extensible Markup Language (XML) format.

<complexType name = "FilteringInformationTable"> <complexContent> <sequence> <element name = "Event" type = "mpeg7: AudioVisualSegmentType"> <complexType> s <sequence> <element name = "TextAnnotation” type = "mpeg7: TextAnnotationType" / > <element name = "MediaTime" type = "mpeg7: MediaTimeType" /> <element name = "MediaSourceDecomposition" type = "mpeg7: VideoSegmentMediaSourceDecompositionType"> <element name = ”VideoSegment" type = "mpeg7: VideoSegmentType" minOccurs = "0 "maxOccurs =" unbounded "/> <element name =" MediaTime "type =" mpeg7: MediaTimeType "/> <element name =" Keyframe "type =" mpeg7: ImageLocatorType "/> <element name =" VisualDescriptor "type =" mpeg7: VisualDType "minOccurs =" 0 "maxOccurs =" unbounded "/> </ Keyframe> <element name =" VisualDescriptor "type =" mpeg7: VisualDType "minOccurs =" 0 "maxOccurs =" unbounded "/> </ VideoSegment> <element name =" AudioSegment "type =" mpeg7: AudioSegmentType "minOccurs =" 0 "maxOccurs =" unbounded "> <element name =" MediaTime " type = "mpeg7: MediaTimeType" /> <element name = "AudioDescriptor" type = "mpeg7: AudioDType" minOccurs = "0" maxOccurs = "unbounded" /> </ AudioSegment> </ MediaSourceDecomposition> </ sequence> </ complexType > </ Event> </ sequence> </ complexContent> </ complexType>

The Accessibility Information Table 1180 describes accessibility to the filtered broadcast content, and includes accessibility to a user, including information on audio and visual vulnerabilities such as hearing loss or color weakness, and the like. To facilitate.

The Usage Environment Description Table 1190 describes basic information about an environment to be consumed by the filtered broadcast content, and the basic environment information table 1190 describes basic information on the mobile communication terminal to which the filtered broadcast content is to be transmitted. To describe.

In this case, the basic information on the mobile communication terminal may include terminal information on a standard of the mobile communication terminal such as a central processing unit (CPU) or a memory (RAM), and the broadcast content is transmitted. Network information describing network characteristics such as bandwidth may be included.

Hereinafter, a method of managing user preference for an event of a broadcast program applied to an embodiment of the present invention will be described in detail.

That is, the user preference for an event of a broadcast program applied to an embodiment of the present invention is updated using weights that are differentiated according to the viewing period.

For example, a method of updating a preference for broadcast content preferred by user A may be expressed by Equation 1 below.

User A_P (C _i ) = W ₁ * C _{i_w} + W ₂ * C _{i_m}

Here, C is broadcast content, User A_P (C _i ) is user A's preference for the corresponding broadcast content, W ₁ and W ₂ are weight values satisfying the condition W ₁ > W ₂ , and C _{i_W} is the number of times the user A watched the corresponding broadcast content within a week, and C _{i_M} is the number of times the user A watched the corresponding broadcast content within one month.

That is, Equation 1 above shows viewer preferences for analyzing viewers 'tendency to watch broadcast content recently by setting viewers' viewing rates for a week higher than viewing rates for one month.

In addition, a method of updating a preference for a corresponding event of broadcast content preferred by user A may be expressed by Equation 2 below.

User A_P (E _i ) _c = (W ₁ * E _{i_w} + W ₂ * E _i ) * (C _{i_w} / T _{i_w} + C _{i_m} / T _{i_m} )

Here, C is broadcast content, (E _i ) _c is a meaningful event constituting the content, P (E _i ) _c is a preference for the events, W ₁ , W ₂ is W _Are weighted values satisfying the condition ₁ > W ₂ , wherein E _{i_W} is the number of times a user A watched the event within a week, E _{i_M} is the number of times user A watched the event within a month, and C _{i_W} is The number of times user A watched the broadcast content within a week, the C _{i_M} is the number of times user A watched the broadcast content within a month, and the T _{i_W} is the total number of times user A watched the broadcast content within a week, T _{i_M} is the total number of times that user A watched broadcast content within a month.

Equation 2 represents a viewer's preference for analyzing the viewer's viewing propensity for an event of the broadcast content of the viewer by setting the viewer's viewing ratio higher than the viewing ratio during the recent week.

5 is a flowchart illustrating a personalized album configuration based on a preference for a user, and illustrates a process of configuring a personalized album based on a preference for a user using an access unit.

Referring to FIG. 5, first, a user's access process is performed by the communication access unit 500 (see FIG. 1) (S100). In this case, the input may be directly input from an input device such as a keyboard, a mouse or a microphone of the home terminal, but is not limited thereto. For example, the input may be received through a home network.

Next, after performing the process of identifying the connected user by the controller 750 (see FIG. 1), the user preference manager 150 (see FIG. 1) parses the preference for the user (Parsing). A user preference process is performed (S120).

In this case, the parsed information corresponding to the identified user may include, but is not limited to, for example, a program genre, an event, or a character.

Thereafter, the access unit manager 400 (refer to FIG. 1) performs a process of detecting an access unit (Searching Access Unit) (S130). That is, an access unit including broadcast metadata that matches the parsed user preference information is detected.

Next, a process of generating a video album by the access unit decoder 450 (see FIG. 1) is performed (S140). In this case, the video album may be configured in the form of a broadcast multimedia application format (MAF) including a plurality of video access units.

Thereafter, after performing a process of checking how to output by the access unit decoder 450 (S150), the display unit 700 (refer to FIG. 1) in the case of a display output method is generated. The video album is directly displayed to the user (S160). Otherwise, the generated video album is transmitted through the broadcast MAF generator 650 (see FIG. 1) in the case of the transmission output method (S170).

In this case, the video album display step (S160) shows the video album for display in the home server by sorting the access units detected in the detection step (S130) of the access unit according to the priority set in the display unit 700 in advance. This is preferred.

The video album transmission step (S170) is a video multimedia application format (MAF) form integrated through the video album for the external mobile communication terminal format conversion unit 600 (see Fig. 1) and the broadcast MAF generation unit 650 After configured as, it is preferably transmitted through the communication access unit 500.

6 is a flowchart illustrating a video search by a user's query, and illustrates a process of searching for a video by a user's query using an access unit.

Referring to FIG. 6, an input user's query is performed by the communication access unit 500 (see FIG. 1) (S200). In this case, the input may be directly input from an input device such as a keyboard, a mouse, or a microphone of the home terminal, but is not limited thereto. For example, the input may be received through a home network. Meanwhile, the input information may include, but is not limited to, a program genre, an event or a character.

Next, after performing a parsing query process by the access unit manager 400 (see FIG. 1) (S210), the user preference manager 150 (see FIG. 1) performs the input. The updating of user preferences is performed according to the query of the user (S220).

Thereafter, the access unit manager 400 performs a process of detecting an access unit including broadcast metadata that matches the parsed user query information (S230).

Next, a process of generating a video album by the access unit decoder 450 (see FIG. 1) is performed (S240). In this case, the video album may be configured in the form of a broadcast multimedia application format (MAF) including a plurality of video access units.

Subsequently, after performing a process of checking how to output by the access unit decoder 450 (see FIG. 1) (S250), in the case of a display output method, the display unit 700 (see FIG. 1). Through the display of the generated video album to the user directly (S260), otherwise in the case of the transmission output method and transmits the generated video album through the broadcast MAF generator 650 (see Fig. 1) (S270).

In this case, the video album display step (S260) displays the video album for display in the home server by arranging the access units detected in the detection step (S230) of the access unit according to the priority set in the display unit 700 in advance. This is preferred.

The video album transmission step (S270) is a video multimedia application format (MAF) form of the integrated video album for the external mobile communication terminal through the format conversion unit 600 (see FIG. 1) and the broadcast MAF generation unit 650 After configured as, it is preferably transmitted through the communication access unit 500.

Although a preferred embodiment of a broadcast video management system and a method of real-time filtering in a home terminal according to the present invention has been described above, the present invention is not limited thereto, and the claims and the detailed description of the invention and the accompanying drawings are described. It is possible to carry out various modifications within the scope and this also belongs to the present invention.

According to the broadcast video management system and method of the real-time filtered in the home terminal of the present invention as described above, a broadcast multimedia application format (MAF) that combines broadcast metadata associated with the real-time filtered video segment in the home terminal is configured. Audio / image / motion feature information obtained from video segments and their contents together with TV-anytime metadata for effective indexing, retrieval and transmission. As metadata for format (MAF) files, the structure of the broadcast multimedia application format (MAF) allows TV viewers to organize and search video albums that effectively browse video segments to their tastes. Compatibility can be maintained in content consumption between a home terminal and a mobile communication terminal. There is an advantage.

Claims (33)

In the system for real-time filtered broadcast video management in the home terminal, A broadcast input unit for obtaining a broadcast program from an external digital broadcast channel; A user preference manager configured to manage user preferences registered in the home terminal; A content filtering unit for filtering a broadcast program obtained from the broadcast input unit in real time according to a user preference provided from the user preference manager; An EPG manager for managing electronic program guide (EPG) information of the obtained broadcast program for each user of the home terminal together with an external digital broadcast signal; A broadcast metadata generator for acquiring additional information on the scene filtered by the content filtering unit through the EPG manager to generate broadcast metadata; An access unit generation unit for generating an access unit by combining broadcast metadata of a scene filtered from the content filtering unit and a scene generated from the broadcast metadata generation unit; An access unit manager configured to manage the access units generated by the home terminal; An access unit decoder for decoding and parsing an access unit managed by the access unit manager into media resources and broadcast metadata, respectively; And And a control unit for collectively controlling the respective units. The display apparatus of claim 1, further comprising a display unit configured to receive a media resource and broadcast metadata decoded and parsed from the access unit decode unit, respectively, and directly provide a user with a broadcast program / scene or broadcast metadata stored in the user. Broadcast video management system filtered in real time in a home terminal. The apparatus of claim 1, further comprising: a communication access unit configured to provide additional information about a scene filtered from the content filtering unit to the broadcast metadata generator through access to a communication channel; An external MAF input unit which receives a video multimedia application format (MAF) generated from an external mobile communication terminal through a communication channel of the communication access unit and provides the access unit to the access unit manager for managing as an access unit; A format conversion unit for receiving the decoded and parsed media resources and broadcast metadata from the access unit decoder and converting the video format of the access unit stored in the home terminal; And And a broadcast MAF generator for generating a broadcast multimedia application format (MAF) for a mobile communication terminal using the video format converted from the format converter and the broadcast metadata. Management system. The system of claim 3, wherein the communication channel comprises an IP network Bluetooth or a memory card. The system of claim 3, wherein the format conversion unit converts the video format into a structure suitable for transmitting an access unit stored in the home terminal to an external mobile communication terminal. [4] The home terminal of claim 3, wherein the broadcast MAF generator provides the generated broadcast multimedia application format (MAF) for the mobile communication terminal to an external mobile communication terminal through a communication channel of the communication access unit. Filtered broadcast video management system. 4. The system of claim 3, wherein the broadcast multimedia application format (MAF) comprises at least one access unit. According to claim 1, wherein the digital broadcast channel is a real-time filtered broadcast in the home terminal, characterized in that at least one or more of the broadcast channel of the terrestrial broadcast, satellite broadcast, digital multimedia broadcasting (DMB) or Internet Protocol TV broadcasting (IPTV). Video management system. The broadcast video management system of claim 1, wherein the user preferences are updated using weights differentiated according to a viewing period. 10. The system of claim 9, wherein the user preferences are updated by Equations 3 and 4 below. User A_P (C _i ) = W ₁ * C _{i_w} + W ₂ * C _{i_m} Here, C is broadcast content, User A_P (C _i ) is user A's preference for the corresponding broadcast content, W ₁ and W ₂ are weight values satisfying the condition W ₁ > W ₂ , and C _{i_W} is the number of times the user A watched the broadcast content within a week, and C _{i_M} is the number of times the user A watched the broadcast content within one month. User A_P (E _i ) _c = (W ₁ * E _{i_w} + W ₂ * E _i ) * (C _{i_w} / T _{i_w} + C _{i_m} / T _{i_m} ) Here, C is broadcast content, (E _i ) _c is a meaningful event constituting the content, P (E _i ) _c is a preference for the events, W ₁ , W ₂ is W _Are weighted values satisfying the condition ₁ > W ₂ , wherein E _{i_W} is the number of times a user A watched the event within a week, E _{i_M} is the number of times user A watched the event within a month, and C _{i_W} is The number of times user A watched the broadcast content within a week, the C _{i_M} is the number of times user A watched the broadcast content within a month, and the T _{i_W} is the total number of times user A watched the broadcast content within a week, T _{i_M} is the total number of times that user A watched broadcast content within a month. The broadcast video management system of claim 1, wherein the reference of the user preference supports a reference method of a broadcast content unit and a reference method of an event unit. The method of claim 1, wherein the content filtering unit extracts audio and visual features of a live program from a broadcast program obtained from the broadcast input unit in real time and performs a pattern recognition process, according to a user preference provided from the user preference manager. Broadcast video management system filtered in real time in a home terminal, characterized in that the real-time filtering on a scene basis. The broadcast video management system of claim 1, wherein the broadcast metadata generated from the broadcast metadata generator is in the form of XML. The method of claim 1, wherein the generated access unit, Media data having various media resources of the access unit; And And a move comprising a track having encoding information for the media resources and a metabox having broadcast metadata associated with the media resources. 15. The apparatus of claim 14, wherein the media resources include a video stream, an audio stream, a subtitle stream, and a preview image. Broadcast video management system. 15. The system of claim 14, wherein the encoding information is location information of the media resources. The system of claim 1, wherein the access unit generation unit filters an event of broadcast content and generates the broadcast metadata. 18. The method of claim 14 or 17, wherein the broadcast metadata is metadata for describing the media resource, and a program description for describing event information of the filtered broadcast content is provided. The program description may include at least one of a program information table, a group information table, a program location information table, a service information table, a Credits information table, a segment information table, an access information table, a usage environment description table, and a filtering information table. Broadcast video management system filtered in real time in a home terminal, characterized in that it comprises one or more tables. 19. The apparatus of claim 18, wherein the program information table, the group information table, the program location information table, the credits information table, and the segment information table describe basic information about the filtered broadcast content. And a program generation information of at least one of a title, a keyword, and a genre of the broadcast content. 19. The service information table of claim 18, wherein the service information table describes information about a service provider and a content producer that transmits the corresponding broadcast content, and includes service information of at least one of owner, name, and expiration date. Broadcast video management system with real time filtering at home terminal. 19. The home terminal of claim 18, wherein the access information table describes accessibility to the filtered broadcast content and includes information on hearing loss or color weakness, audio, and visual vulnerability of the content. Real-time filtered broadcast video management system. 19. The method of claim 18, wherein the usage environment description table describes basic information of a mobile communication terminal to which the filtered broadcast content is to be transmitted, and describes terminal information or a characteristic of a network for a standard of the mobile communication terminal. Broadcast video management system filtered in real time in a home terminal comprising a network information. 19. The method of claim 18, wherein the filtering information table describes basic information about an event of the filtered broadcast content, and includes event information of a title or a keyword of the event. Real-time filtered broadcast video management system in a home terminal. 24. The broadcast metadata of claim 23, wherein the broadcast metadata representing the filtered event includes information for segmenting a temporal structure of media, MPEG-7 audio / motion feature required for each event, And at least one or more of MPEG-7 image features extracted from a keyframe image extracted per segment. 25. The system of claim 24, wherein the description structure for expressing the broadcast metadata is expressed in an XML format as shown in Table 2 below. <complexType name = "FilteringInformationTable"> <complexContent> <sequence> <element name = "Event" type = "mpeg7: AudioVisualSegmentType"> <complexType> s <sequence> <element name = "TextAnnotation” type = "mpeg7: TextAnnotationType" / > <element name = "MediaTime" type = "mpeg7: MediaTimeType" /> <element name = "MediaSourceDecomposition" type = "mpeg7: VideoSegmentMediaSourceDecompositionType"> <element name = ”VideoSegment" type = "mpeg7: VideoSegmentType" minOccurs = "0 "maxOccurs =" unbounded "/> <element name =" MediaTime "type =" mpeg7: MediaTimeType "/> <element name =" Keyframe "type =" mpeg7: ImageLocatorType "/> <element name =" VisualDescriptor "type =" mpeg7: VisualDType "minOccurs =" 0 "maxOccurs =" unbounded "/> </ Keyframe> <element name =" VisualDescriptor "type =" mpeg7: VisualDType "minOccurs =" 0 "maxOccurs =" unbounded "/> </ VideoSegment> <element name =" AudioSegment "type =" mpeg7: AudioSegmentType "minOccurs =" 0 "maxOccurs =" unbounded "> <element name =" MediaTime " type = "mpeg7: MediaTimeType" /> <element name = "AudioDescriptor" type = "mpeg7: AudioDType" minOccurs = "0" maxOccurs = "unbounded" /> </ AudioSegment> </ MediaSourceDecomposition> </ sequence> </ complexType > </ Event> </ sequence> </ complexContent> </ complexType> The home terminal of claim 1, wherein the access unit manager receives user preferences from the user preference manager to configure the personalized video album or manages an access unit generated from the access unit generator. Filtered broadcast video management system. The method of claim 1, wherein the access unit decoder decodes and parses the access unit managed by the access unit manager into media resources and broadcast metadata, respectively, when generating a personalized video album or searching for a video scene according to a user. Broadcast video management system with real time filtering at home terminal. 28. The system of claim 27, wherein the personalized video album generation parses and outputs the access unit based on a preference of a user accessing the home terminal. 28. The system of claim 27, wherein the personalized video album is generated according to the structure of the broadcast multimedia application format (MAF). 30. The system of claim 29, wherein the personalized video album is output in a manner displayed on the home terminal or transmitted to an external mobile communication terminal. In the method for real-time filtered broadcast video management in the home terminal, (a) obtaining a broadcast program from an external digital broadcast channel; (b) filtering the obtained broadcast program in real time according to a preset user preference; (c) managing electronic program guide (EPG) information of the obtained broadcast program for each user of the home terminal together with an external digital broadcast signal; (d) generating broadcast metadata by acquiring additional information about the scene of the filtered broadcast program; (e) generating an access unit by combining scenes of the filtered broadcast program and the generated metadata; (f) managing access units created in the home terminal; And and (g) decoding and parsing the managed access unit into media resources and broadcast metadata, respectively. 32. The method of claim 31, further comprising, after step (g), receiving the respective decoded and parsed media resources and broadcast metadata and directly displaying the stored broadcast program / scene or broadcast metadata to the user. Live video filtered broadcast video management method in a home terminal, characterized in that the. 32. The method of claim 31, further comprising: receiving a video multimedia application format (MAF) generated from an external mobile communication terminal and managing the same as an access unit; Converting a video format of an access unit stored in the home terminal by receiving the decoded and parsed media resources and broadcast metadata; And And generating a broadcast multimedia application format (MAF) for a mobile communication terminal by using the converted video format and the broadcast metadata.

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