KR20100104327A - Video indexing method and system based on internet - Google Patents

Abstract

PURPOSE: An internet-based video indexing method and a system of the same are provided to index video files in readable XML(eXtensible Markup Language) language at an internet-based terminal, thereby minimizing the cost to manage and maintain a database. CONSTITUTION: A video indexing unit(200) receives input parameters about video contents from GUI(Graphic User Interface)(100). The video indexing device performs indexing of target video contents. An index manager(210) generates index file of XML language about the target video contents. A search manager(220) searches EVI(Elementary Video Index) from a file stored in a PVR(Personal Video Recorder)(300). A grouping manager(240) grouping the index of related video files.

Description

VIDEO INDEXING METHOD AND SYSTEM BASED ON INTERNET}

The present invention relates to a video indexing method and system, and more particularly, to a video indexing method for indexing a target video in a human-readable format XML language and exchanging indexed XML files between subscribers and using the same. It's about the system.

Currently, video content that is being provided through wired and wireless services is selected from the beginning of the content to the end. To see the middle part of the video content, you can move the search bar where you think the part is located in the player, but you cannot find the part exactly. In addition, in order to see the memorable part even once seen, it is inconvenient because you have to find the corresponding part while moving the search bar to the part where it is supposed to be the same as before.

In addition, since the video content provider provides only the entire video file, a buyer who wants to service the wired / wireless communication using only a part of the entire video may have to purchase the entire expensive video content.

In order to solve such a problem, a section extraction system of video content which extracts a section of a video content file, designates a start time and an end time of a frame, and extracts and indexes a search for a video content file is disclosed. Is disclosed in.

The existing indexing method of video content includes a video content management database for registering a video to be serviced and storing address and price information of the video to be serviced, and a video for storing search index words and explanation data according to streaming of video content. It is necessary to maintain and manage the content search database, and it is expensive. Also, in order to play the indexed content part, it is necessary to perform a procedure such as searching in the database through a search index word, etc. And exchange of indexing files is not easy.

Accordingly, there is a need in the related art for a video indexing technique that can easily access a video content indexing file through the Internet and easily exchange indexing files among subscribers while reducing the cost of maintaining a database for managing and searching indexed content. .

The present invention has been proposed to solve the above problems, and an object of the present invention is to implement an indexing method for reducing a database maintenance and management cost for video indexing.

In addition, it is an object of the present invention to implement an Internet-based video indexing method that can access the indexed video file anywhere, anytime via the Internet and easily exchange the indexed video file between subscribers.

In order to achieve the above object, a video indexing method according to an embodiment of the present invention comprises the steps of: receiving an input parameter for video information via a graphical user interface (GUI); And generating an index file in XML (Extensible Markup Language) format based on the received input parameter, wherein the index file is exchanged between subscribers via the Internet.

The video indexing method according to another embodiment of the present invention further includes the step of hierarchically grouping a plurality of index files.

A video indexing method according to another embodiment of the present invention is characterized in that the index file includes a URL.

The video indexing method according to another embodiment of the present invention is characterized in that the URL designates a service provider ID, a content ID, and a start time and end time of a target section of a video.

A video indexing system according to another embodiment of the present invention receives an input parameter for video information through a graphical user interface (GUI) and generates an index file in Extensible Markup Language (XML) format based on the received input parameter. Means, wherein the index file is exchanged between subscribers via the Internet.

A video indexing system according to another embodiment of the present invention further comprises means for hierarchically grouping a plurality of index files,

A video indexing system according to another embodiment of the present invention is further characterized by further comprising means for displaying the portion of the target video indexed by the index file.

A video indexing system according to another embodiment of the present invention is characterized in that the index file includes a URL,

A video indexing system according to another embodiment of the present invention is characterized in that the URL designates the service provider ID, the content ID, and the start time and end time of the target section of the video.

Due to the configuration as described above, the video indexing method and system according to the present invention, by maintaining a database by indexing a number of video files in a human-readable XML language for each subject or subtitle in a terminal based on the Internet Can be minimized.

In addition, XML indexing files include URLs so that video content indexed over the Internet can be accessed without time and space constraints, and index files can be easily exchanged among subscribers, effectively editing index files to meet the needs of subscribers or terminal users. Can be provided.

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

1 illustrates a system in which various entities on a wireless network exchange information and communicate over the Internet. The video content provided by the head end (company providing the video content) 2 is received by the mobile device 6 or the IPTV set-top box 4 via the Internet for playback and storage, and on the portal 8. Linked various video moving images are also received by the mobile device 6 or the IPTV set-top box 4 via the Internet for playback and storage. In addition, the video transmitted from the mobile device 6 or the IPTV set-top box 4 may be exchanged via the Internet 10, and the video video is exchanged between the IPTV set-top boxes 4 via the Internet 10. It is possible to.

Hereinafter, with reference to FIG. 2, preferred embodiment which concerns on this invention is described. As shown in FIG. 2, a video indexing system according to the present invention includes a graphical user interface (GUI) 100, a video indexing device 200, and a personal video recording device (PVR) 300. The video indexing apparatus 200 receives input parameters regarding a large number of video contents from the GUI 100, extracts a section of a target video content, and designates and extracts a start time and an end time of a frame. . Each indexing file is written in Extensible Markup Language (XML) language in human readable format and also groups each indexing file of related video files. Since the indexing file is recorded and stored in XML format, it is possible to minimize the cost of maintaining and managing the database since there is no need to store search index words and explanation data to register the target video and search the indexed sections.

Meanwhile, the video indexing files generated and grouped from the video indexing apparatus 200 may be stored in the PVR 300 and the video indexing files stored in the PVR 300 may be retrieved and edited again from the video indexing apparatus 200. . The PVR 300 uses various storage devices such as Blu-ray, HDD, flash memory, and the like, and is used in IPTV set-top boxes and the like.

Meanwhile, the video indexing apparatus 200 includes an index manager 210, a search manager 220, a display manager 230, and a grouping manager 240. Index manager 210 generates an index file in XML language for a single target video content, which is called an elementary video index (EVI). In addition, the index manager 210 performs operations such as deleting, merging, editing, and storing the generated XML index file.

Meanwhile, the search manager 220 searches for the EVI from a file stored in the PVR 300 and determines a start time and an end time of the EVI in order to play back the section of the target video content. The display manager 230 performs a function of selecting and displaying an indexed playback section from the EVI searched by the search manager 220, and the grouping manager 240 stores a plurality of stored as means for grouping indices of related video files. Performs a function of generating a composite video index (CVI) by merging (logical sum) of the EVIs.

Hereinafter, the functions of the index manager 210 and the grouping manager 240 constituting the video indexing apparatus 200 according to the present invention will be described in detail.

As shown in FIG. 3, the index manager 210 according to the present invention receives input parameters for a number of video content files, selects target video contents, extracts intervals for the selected target video files, and starts a frame. Indexing is performed by specifying the time and end time. Through this, an index file of XML called an elementary video index (EVI) is generated. The content provider or IPTV subscriber may generate the base video index (EVI) separately for the target video content, respectively. The generated Basic Video Index (EVI) file may be stored in the PVR of the IPTV set top box. If the service provider agrees with such an XML-formatted indexing protocol, the initiating indexing system may also function as a video stream.

An elementary video index (EVI) in XML format specifies indexing information, such as the subject, subtitle, service provider, and start and end times of the video stream or video movie to be played.

On the other hand, the XML index file according to the present invention is exchanged between subscribers via the Internet. To this end, an exemplary base video index (EVI) includes a Uniform Resource Locator (URL). A URL indicating the indexed location of the target video is by way of example as follows.

Protocol_name: // provider_ID / content_ID / start_time / end_time

(Protocol_Name : // Provider_ID / Asset_ID / Start_Time / End_Time)

The URL for video indexing is described by way of example and is not limited thereto. Any form of the URL for indexing the video may be included in the present invention. In this example, protocol_name refers to a network protocol such as http, rtp, rtps, etc., and provider_ID represents a headend or an IPTV subscriber that provides a service. In addition, the content_ID indicates a subject of the content. For example, when the content is a movie, the content_ID indicates a movie title. On the other hand, the start_time and the end_time indicate the start point and the end point of the target video to be played by the subscriber, and are expressed in hours: minutes: seconds, and may specify a time in milliseconds.

On the other hand, the basic video index (EVI) of the XML format including the URL is as follows.

<xml version = "1.0" encoding = "UTF-8">

<title> Trigonometric Functions </ title>

<lecturer> Hong, Gil Dong </ lecturer>

<index>

<subtitle> Sine Function </ subtitle>

<url>

rtp: //vod.kt.com/trigonometric101.mpeg4/00: 00: 00.000 / 00: 30: 00.000

</ url>

<subtitle> Cosine Function </ subtitle>

<url>

rtp: //vod.kt.com/trigonometric101.mpeg4/00: 30: 00.000 / 01: 00: 00.000

</ url>

</ index>

In this example, the Basic Video Index (EVI) relates to triangular-themed video content, the lecturer is Gil-Dong Hong, and includes two indexed parts including a sine function and a cosine function as a subtitle. On the other hand, it can be seen that such EVI is provided by vod.kt.com company. On the other hand, the sine function is regenerated from 0 to 30 minutes, and the cosine function is regenerated 30 minutes each from 30 to 60 minutes.

As such, the EVI can be exchanged between subscribers via the Internet by including a URL containing indexing information, and the service provider or subscriber can access the service at any time, anywhere at any time if the Internet is accessible by simply clicking on the indexed URL. It is possible to play an indexed video file that provides.

Meanwhile, the index manager 210 according to the present invention includes an editing buffer 212 for creating and editing EVIs. The index manager 210 not only generates a new elementary video index (EVI) from the input parameters received through the GUI 100, but also performs a function of editing an existing generated EVI. The index manager 210 may call the EVI from the storage device 310 of the PVR 300 to the edit buffer 212 to perform deletion, merging, modification, and the like, and the edited EVI is again edited by the PVR 300. May be stored in the storage device 310 of.

Hereinafter, the function of the grouping manager 240 according to the present invention will be described in detail with reference to FIG. 4.

Grouping manager 240 in accordance with the present invention groups related videos to create a file for displaying aggregation information. Grouping manager 240 includes an input modifier 242 and a string search engine 244, where input modifier 242 is a Boolean expression for the video content specified by the index block, as described above. In the example of the functional video, the modifier is used to OR the indexing part corresponding to the sine function and the indexing part corresponding to the cosine function. Meanwhile, the string search engine 244 searches for the corresponding EVI for Boolean Operation and generates a Composite Video Index (CVI) 500 with the input modifier 242. A composite video index (CVI) consists of a series of video indexes combined from multiple EVIs. In the trigonometric example described above, the string search engine 244 retrieves all video indices with sub-signals of the sine function or cosine function, and combines the EVI corresponding to the sine function and the EVI corresponding to the cosine function to synthesize the video index. Create (CVI).

Hereinafter, a hierarchical indexing tree model for hierarchically grouping a plurality of index files according to the present invention will be described with reference to FIG. 5.

As shown in FIG. 5, an elementary video index (EVI) 400 includes an index of a single target video. Each EVI 400 may extract only a single section of a single video content, and may extract and index a plurality of sections of a single video content, as in the trigonometric example above. These EVIs are combined as a set of video indexes by the service provider or IPTV subscriber to generate a composite video index (CVI) 500. The generated composite video index (CVI) 500 may include a plurality of indices of a single target video, and may include indices of multiple different videos. Meanwhile, the generated composite video index (CVI) 500 may be synthesized to generate a higher video index file, and in FIG. 5, a plurality of CVIs 500 are synthesized to generate a secondary CVI 600. .

Meanwhile, with reference to FIG. 6, a scene of a single video content is indexed hierarchically.

If each individual indexing portion having an initial-ending period of video content is an action 410, the multiple actions are combined to form a module 510, and the multiple modules 510 are combined to form a situation. 610, and these situations 610 are combined to form a single event 710. Through this, one event 710 may be hierarchically indexed according to the hierarchical tree model. Meanwhile, when the upper indexing file is played, the lower indexing files constituting the upper indexing file are sequentially played. Meanwhile, various tags may be used to improve semantics of the plurality of hierarchically grouped index files.

Accordingly, the video indexing method and system according to the present invention can perform indexing on a section of target video content, generate a hierarchically grouped index file, and minimize the cost of maintaining and managing a database by indexing in an XML language. In addition, the XML indexing file includes a URL so that video content indexed through the Internet can be accessed without time and space constraints, and index files can be exchanged among subscribers.

The above-described embodiments have been described as examples of the present invention, and the present invention is not limited to the above-described embodiments, but may be appropriately modified in a range not contrary to the spirit or spirit of the invention as understood from the claims and the entire specification. This is possible, and all the embodiments accompanying such a deformation | transformation are included in the technical scope of this invention.

The nature, nature, and advantages of the present invention will become more apparent from the detailed description when taken in conjunction with the drawings, in which like reference characters designate the same objects.

1 illustrates a system in which various entities on a wireless network communicate in exchange of information over the Internet.

2 illustrates the architecture of a video indexing system according to the present invention.

3 is a block diagram illustrating the operation of the index manager according to the present invention.

4 is a block diagram illustrating an operation of a grouping manager according to the present invention.

5 illustrates a hierarchical indexing tree model according to the present invention.

6 illustrates an indexing tree model of a scene of single video content in accordance with the present invention.

* Description of the main symbols in the drawing

2: head end 4: IPTV set-top box

6: mobile device 8: portal 10: internet

100: graphical user interface 210: index manager

212: Edit Buffer 220: Navigation Manager

230: display manager 240: grouping manager

242: input modifier 244: string search engine

300: personal video recording device 310: storage device

400: EVI 500: CVI

600: 2nd CVI 410: Action

510: Module 610: Situation

710: event

Claims (9)

Receiving an input parameter for video information via a graphical user interface (GUI); Generating an index file in Extensible Markup Language (XML) format based on the received input parameter, And the index file is exchanged between subscribers via the Internet. The method of claim 1, And hierarchically grouping the plurality of index files to create an upper index file. The method of claim 1, And the index file comprises a URL. The method of claim 3, wherein Wherein the URL specifies a service provider ID, a content ID, and a start time and an end time of a target section of the video. Means for receiving an input parameter for video information via a graphical user interface (GUI) and generating an index file in Extensible Markup Language (XML) format based on the received input parameter, And the index file is exchanged between subscribers via the Internet. The method of claim 5, And means for hierarchically grouping the plurality of index files to create a top index file. The method of claim 5, Means for displaying the portion of the target video indexed by the index file. The method of claim 5, And the index file comprises a URL. The method of claim 8, Wherein the URL specifies a service provider ID, a content ID, and a start time and end time of a target interval of the video.

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