JP2004348553A - Method for editing metadata, device and program thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology for efficiently performing the secondary usage of an image and metadata, by properly editing metadata with an image-editing processing. <P>SOLUTION: A processing method in a metadata editing device for editing metadata given to contents includes a procedure for acquiring segment information for segmenting a prescribed part of the contents to be an object and all the metadata attached to the contents to be the object; and a metadata, giving procedure for performing a processing to allow attribute information in the metadata to correspond to a part superimposed on the contents to be segmented, based on segment information, with respect to each kind of metadata given to the contents to be the object. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a video data management system, and more particularly, to a metadata editing method and apparatus for improving the efficiency of a metadata management method when editing video data.
[0002]
[Prior art]
Patent Document 1 discloses a “moving image editing device” as a device that can integrally manage metadata and video data. In this conventional technique, a scene change (referred to as a shot change) is detected from a video, divided into a plurality of shots, and an icon using a leading image of each shot is operated to enable easy video editing. I have. In addition, not only can metadata be added to each shot of a video, but a plurality of shots can be collectively and hierarchically provided with metadata.
[0003]
The outline of the operation of this conventional technique will be described with reference to FIG.
[0004]
The video 800 given as an input is composed of four scenes (shots) A, B, C, D, etc. In this example, the shot A is composed of three frames A1, A2, A3, and the shot B is The shot C is composed of two frames C1 and C2, and the shot D is composed of two frames D1 and D2. The boundaries 801, 802, 803 and 804 of these shots A, B, C and D are called shot switching.
[0005]
In this conventional technique, first, a shot switching position is detected. Various methods have been developed as a method of detecting a shot switching position using image processing. For example, the method can be detected by using a method disclosed in Patent Document 2 (cut point detection method and device).
[0006]
Next, the leading image (A1, B1, C1, D1) of each shot is extracted from the video 800 as a representative image, and the metadata input interface 805 is constructed using these. The metadata input interface 805 includes three areas: a material area 806, a tree structure display area 807, and a function button area. The user performs an image editing operation by selecting an icon displayed in the material area 805 with a pointing device such as a mouse and performing an operation such as drag and drop to the tree structure display area 807. In addition, by using the buttons in the function button area, metadata input to each icon, a tree structure of icons, and the like can be performed. Each function will be described below.
[0007]
First, the video editing operation will be described. In the material area 806, icons (four in this example) corresponding to each shot of the video 800 are displayed in chronological order of the video from the left, and the representative image extracted above is displayed above each icon. I do. As an example, a frame A1 is displayed on the icon 809 as a representative image corresponding to the first shot. The user selects an icon that matches the image of the video to be produced, and performs a drag-and-drop operation on the tree structure display area. As a result, the selected icons are sequentially displayed in the lowermost part of the tree structure display area 807. By repeating this operation, a plurality of icons are arranged at the bottom of the tree structure display area 807. Eventually, a series of shots corresponding to the icons displayed in order from the left is a video to be finally created.
[0008]
For example, when icons 809 and 810 are sequentially dragged and dropped to the tree structure display area, icons 811 and 812 are displayed at the bottom of the tree structure display area 807. The icons 811, 812 display representative images A1, B1 corresponding to the icons 809, 810, respectively, and the video of the portion from shot switching 801 to 803 is recorded in the tree structure display area as a temporary editing result. A shot can also be deleted by changing the order of shots by a similar mouse drag and drop operation, or by pressing a specific button (for example, a shot deletion button) in the function button area.
[0009]
Next, a metadata input method will be described. When a specific icon is clicked and selected in the tree structure display area 807 and a specific button (for example, a metadata input button) in the function button area 808 is pressed, a metadata input window 815 is opened and information about the shot is displayed. You can enter metadata.
[0010]
The user first selects an attribute name indicating the type of metadata to be input, then inputs an attribute value in the input space and presses the OK button to complete the input. For example, when metadata "climbing" is input as a comment, the user first checks the comment check box 816 and enters "climbing" in the input window 817 on the left side. When the input is completed, pressing the OK button 818 completes the input.
[0011]
Next, the tree structure function of icons will be described. By selecting a plurality of icons in the tree structure display area 807 and pressing a specific button (for example, a tree structure button) in the function button area 808, the icons can be formed into a tree structure. For example, if an icon 811 or 812 is selected and a tree structure button is pressed, a parent icon 813 is generated as a result of the tree structure and is displayed above the icons 811 and 812. The icon 813 corresponds to a combination of two shots corresponding to the icons 811 and 812, and the same image as the icon 811 is displayed as a representative image. By pressing the metadata input button for the icon 813, metadata can be input, and information common to both the icons 811 and 812 can be input. With the icon tree structuring function as described above, hierarchical metadata can be provided, and abstract metadata can be efficiently managed.
[0012]
Finally, by pressing a specific button in the function button area 808, the video and metadata of the edited result can be registered in a database and used for later searching, or output as a file.
[0013]
According to this conventional technique, the use of the above-described metadata input interface 805 enables efficient video editing operations and hierarchical metadata input and management. For example, when a keyword “climbing” is given as a search keyword, a shot relating to “climbing” is retrieved, and the result can be read into a material area and used for video editing.
[0014]
[Patent Document 1]
JP-A-11-205736
[0015]
[Patent Document 2]
JP-A-11-8854
[0016]
[Problems to be solved by the invention]
However, the above prior art has the following problems.
[0017]
The first problem of the above-described prior art is that images can be handled only in shot units. In an actual video editing site, editing is often performed while taking into consideration the length of the entire video to be finally created, and video is not necessarily edited in shot units. For example, even when it is desired to use only a part of the video of 3 seconds out of a shot of a certain 20 seconds, this technique can handle only the entirety of 20 seconds, and eventually includes useless video. Also, if the length of the entire video to be created is predetermined, it is necessary to adjust the shots to be used and perform the editing work while calculating the overall time to meet the target time. There is a need to do. In fact, with this prior art system, it is nearly impossible to edit the overall length of the final video to exactly match the desired length.
[0018]
In addition, since metadata can be input only at the unit of a shot, there is a problem that it is not possible to input metadata flexibly in terms of time. For example, it is not possible to input information on a part of video in one shot only to a corresponding portion.
[0019]
A second problem is that when a part of the video is reused, the abstract metadata of the upper layer of the hierarchical metadata is not inherited. For example, for a shot A with metadata “sea bathing” and a shot B with metadata “fireworks”, metadata “summer” is added as a superordinate concept of shots A and B. Suppose Then, if only the shot A is reused as a part of another video, the metadata “summer” is not carried over to the shot corresponding to the original shot A in the new video.
[0020]
Generally, video creators tend to avoid creating something similar to the work of others, and there is a very high need for information on how shots have been used in the past. However, because the metadata of the superordinate concept is not inherited, it is impossible to know how others used the shot in the video work. In addition, if video editing is performed by relying only on the metadata attached to each shot unit, there may be a situation where shot contents are misunderstood and used differently from actual contents. For example, for a video that is forged as if shooting a crime scene, the shot is assigned metadata of “crime scene”, and if the metadata is attached with “forgery” as a superordinate concept, it is called “forgery”. If the metadata is not inherited, it may be misused as being genuinely misunderstood.
[0021]
A third problem is that metadata input on this system cannot be used for other similar video data management systems. 2. Description of the Related Art In recent years, the distribution of video has become active. For example, the opportunity of reusing even one movie work through various media such as DVD, video package, BS / CS broadcast, TV broadcast, and distribution on the Internet is increasing. In the process, the video is often re-edited according to the state of the media, and the opportunity to re-edit the video using a system different from the video editing system used for the first video production is increasing.
[0022]
Under such circumstances, there is an increasing demand for using metadata input on a specific video editing system in another video editing system to improve the efficiency of video editing work. However, this prior art does not show a method for reusing input metadata in another system.
[0023]
A fourth problem is that merge processing is not performed on metadata accompanying the edited video. In this system, merge processing is not performed even if metadata having the same contents in both attribute names and attribute values is assigned to a plurality of consecutive shots in the edited video, and different metadata is used for each shot. Is managed as In general broadcast program video, one shot is about 5 seconds long, and if the video is about 2 hours, the number of shots may exceed 1,000. In such a situation, if the metadata is managed for each shot, not only the description data of the metadata becomes redundant, but also the search speed is hindered in the video search processing using the metadata.
[0024]
The present invention has been made in view of the above-described drawbacks of the conventional system, and has been made in view of the above-mentioned. A technique for appropriately performing metadata editing processing associated with video editing processing and efficiently performing secondary use of video and metadata is provided. Its purpose is to provide.
[0025]
[Means for Solving the Problems]
The above-mentioned problem is a processing method in a metadata editing device that edits metadata attached to a content, and includes extraction information for extracting a predetermined portion of the target content, A procedure for acquiring all the metadata, and a process of associating the attribute information in the metadata with a part or all of the part of the content corresponding to the metadata, the part overlapping with the content cut out based on the cut-out information, And a metadata attaching procedure performed on each metadata attached to the target content.
[0026]
According to the present invention, it is possible to extract the metadata of the portion corresponding to the cut-out content from the metadata of the original content, so that the existing metadata can be inherited at the time of secondary use of the video, and the new metadata can be extracted. Eliminates the need to enter data. Further, even if the metadata is input by another system, the metadata editing process can be performed as long as each metadata has time information. This solves the problem that it is not possible to know the information about how the video was used in the past, and the problem that the video might be used for a purpose different from the original content. .
[0027]
In the above method, each of the metadata includes time information indicating a time section corresponding to the metadata in the content, and the process of associating the attribute information includes the time information in the cutout information and the time information in the metadata. And determining the overlapping portion by comparing the time information of the metadata associated with the overlapping portion with the information based on the time of the beginning of the content extracted based on the extraction information. Can be included.
[0028]
Further, when a plurality of contents cut out based on the cut-out information are combined into an edited content, the time information in the metadata attached to the respective contents cut out based on the cut-out information by the metadata providing procedure is replaced with the content. And using the time from the beginning of the edited content based on the order in the edited content.
[0029]
According to the above-mentioned invention, it is possible to perform metadata input and editing work on an arbitrary portion of content, and solve the problem that metadata input and video editing can be performed only in shot units. Thereby, the metadata input and the video editing work can be performed flexibly.
[0030]
In addition, it is possible to uniquely determine the correspondence between the edited content and the accompanying metadata, and solve the problem that metadata input in one system cannot be used in another system. Thus, the metadata can be reused even in a system different from the video data management system to which the metadata has been input, and the video can be efficiently re-edited.
[0031]
Further, the above problem is a processing method in a metadata editing device that edits metadata attached to a content, and among a plurality of pieces of metadata associated with a target content, a time on the content is reduced. It is also possible to solve the problem by a method having a procedure in which a plurality of pieces of metadata that have an overlapping portion or are continuous and whose contents are the same are made into one piece of metadata.
[0032]
According to the present invention, it is possible to solve the problem that redundant data increases in the description of metadata after editing, and to efficiently perform a content search process using metadata.
[0033]
Note that the same content means that the attribute name and the attribute value are the same. This can prevent semantically different metadata from being one metadata.
[0034]
In addition, in the above method, each of the metadata includes information on an attribute, In information and Out information indicating a time section in the content, and a procedure in which the same content is defined as one metadata includes: One piece of metadata is formed by combining the minimum In information, the maximum Out information, and the information on the attribute that is the same among the plurality of pieces of metadata among a plurality of pieces of metadata having or overlapping in time. It may be configured to include a procedure for converting data.
[0035]
Further, the present invention can be configured as an apparatus having means for executing each of the above procedures. Further, the present invention can be configured as a program that causes a computer to execute the above-described procedures.
[0036]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0037]
(First Embodiment)
FIG. 1 shows a video data management system according to the first embodiment of the present invention. This video data management system includes a user terminal 1 and a video data management device 2. In the user terminal 1, the user operates the user terminal 1 to input video cutout information and input or receive video data and metadata.
[0038]
The video data management device 2 includes a data receiving unit 108, a data storage unit 109, a data search unit 110, a video data cutout processing unit 111, a metadata cutout processing unit 112, and a data output unit 113.
[0039]
The data receiving unit 108 receives the video data 101 and the metadata 102 and transmits the received data to the data storage unit 109. Next, a uniquely identifiable video ID is issued in the data storage unit 109, and is given to the received video data 101 and metadata 102 so that the corresponding video data and metadata can be searched using the video ID as a key. I do.
[0040]
Here, the metadata 102 is text information including an attribute name, an attribute value thereof, and an In point and an Out point for designating a target section on the corresponding video data using time information from the beginning of the video. That is, as shown in FIG. 2, a table (metadata table) associated with the video ID is created in the data storage unit 109, and the metadata is stored therein in the order in which it was received. Information of the specified metadata (attribute name and its attribute value, and In point and Out point) can be obtained from the order information. Similarly, the video data 101 is managed in association with the video ID, and the specified video data can be obtained from the information of the video ID later.
[0041]
The data search unit 110 receives the search keyword 103 from the user terminal 1 and refers to all the metadata tables stored in the data storage unit 109 to retrieve the video data including the search keyword 103 in the metadata. A search is performed based on a partial match or a perfect match, and video data of the search result and metadata accompanying the search result are output as the search result 104. The search keyword may be given by a set of an attribute name and an attribute value, or may be given only by an attribute value.
[0042]
When clipping a part of the video data from the registered video data, the video clipping information 105 is transmitted to the video data clipping processing unit 111. Here, the video clipping information 105 is text information including a video ID of target video data and information on an In point and an Out point that specify a section to be clipped, as shown in FIG.
[0043]
Upon receiving the video cutout information 105, the video data cutout processing unit 111 cuts out the video data 106 of the specified section in the corresponding video data from the specified video ID and the information of the In point and the Out point, and outputs the data to the data output unit 113. , And simultaneously transmits the video clipping information 105 to the metadata clipping processing unit 112.
[0044]
The clipping process of the video data can be easily performed by using the existing technology. For example, MP-Factory ver., Which is a software product developed and sold at KDDI R & D Labs. By using No. 3, it is possible to specify an arbitrary part from the MPEG file and cut out the frame unit.
[0045]
The metadata cutout processing unit 112 acquires the metadata associated with the video ID from the data storage unit 109 using the information of the video ID included in the received video cutout information 105, and obtains appropriate metadata based on the video cutout information 105. After performing the metadata extracting process, the metadata 107 is transmitted to the data output unit 113. The data output unit 113 outputs the received video data 106 and metadata 107 together to the user terminal 1.
[0046]
Next, the metadata extraction processing performed by the metadata extraction processing unit 112 will be described in detail with reference to the flowchart of FIG.
[0047]
First, in step 1, the values of the video ID, the In point, and the Out point are extracted from the video data cutout information and stored in variables ID, IN, and OUT, respectively. Next, in step 2, the number of rows to which data is input (that is, the number of rows in the metadata table) is obtained from a metadata table (hereinafter, referred to as “metadata table: ID”) associated with the video ID. Then, the number is stored in the variable N and 1 is stored in the variable J at the same time. Next, the process in the loop 1 is repeated while changing the variable J from 1 to N (step 3).
[0048]
In the processing in the loop 1, first, in step 4, the values of the In point [J] and the Out point [J] of the metadata table: ID are stored in the variables In_tmp and Out_tmp, respectively. Next, in step 5, the values of Out_tmp and IN and the values of In_tmp and OUT are compared, and if the condition of Out_tmp <IN or In_tmp> OUT is satisfied, the process returns to the beginning of loop 1 and adds 1 to variable J. To the next process.
[0049]
If none of the above conditions is satisfied, the process moves to the next process, and in Step 6, Out_tmp is compared with OUT. If the condition Out_tmp> OUT is satisfied, the value of OUT is stored in Out_tmp in step 7 and the process proceeds to the next process. If the condition is not satisfied, the process proceeds to the next process without doing anything.
[0050]
In the next process, in step S8, the value of In_tmp is compared with the value of IN. If the condition of In_tmp <IN is satisfied, the value of IN is stored in In_tmp in step 9 and the process proceeds to the next process. If the condition is not satisfied, the process proceeds to the next process without doing anything.
[0051]
Next, in step 10, the metadata table: ID attribute name [J], In_tmp-IN, Out_tmp-IN, attribute are assigned to variables Item_Name [J], In [J], Out [J], and Item [J], respectively. The value of the value [J] is stored. Next, in step 11, 1 is added to the variable J, and the process returns to the beginning of loop 1 and the processing of loop 1 is repeated. It is assumed that each of the variables Item_Name [J], In [J], Out [J], and Item [J] (J = 1 to N) has been previously initialized (for example, initialized to 0).
[0052]
After the completion of the loop 1 processing, all the information of the entire metadata table associated with the ID and the metadata string Item_Name [t], In [t], Out [t], Item [ t] (t is from 1 to J−1) to the data output unit 113 to complete the metadata extracting process.
[0053]
By the above processing, it is possible to extract metadata (attribute name, In point and Out point, which are the time from the beginning of the video clipped by the video clipping information, and attribute value) for each portion of the video clipped in the video clipping information. it can.
[0054]
That is, by comparing the video editing information (video clipping information) with the time information of the metadata, it is possible to extract only the metadata of the portion corresponding to the video after editing (after clipping). As a result, the existing metadata can be inherited even when the image is not used in units of shots in the secondary use of the video, and the trouble of newly inputting the metadata can be omitted. In addition, even if the metadata is input by another system, the editing process can be performed in the same manner as in the present embodiment as long as each metadata has time information.
[0055]
(Second embodiment)
Next, a second embodiment of the present invention will be described.
[0056]
FIG. 5 is a configuration diagram of a video data management system according to the second embodiment of the present invention. This video data management system includes a user terminal 501 and a video data management device 502. In the user terminal 501, the user inputs video data and metadata, inputs a search keyword, receives a search result, and inputs video editing information.
[0057]
The video data management device 502 includes a data receiving unit 508, a data search unit 509, a data storage unit 510, a metadata cutout processing unit 511, and a video editing processing unit 512.
[0058]
The data receiving unit 508 receives the video data 503 and the metadata 504, and transmits the received data to the data storage unit 510. Next, a uniquely identifiable video ID is issued in the data storage unit 510, and is given to the received video data 503 and the metadata 504, and the corresponding video data and metadata can be searched using the video ID as a key. So that
[0059]
Specifically, “metadata table: video ID” (a unique identification ID is entered in the video ID portion) is created as a table area for storing metadata. The table configuration is the same as in FIG. 2 in the first embodiment. The data search unit 509 receives the search keyword 505 from the user terminal 1 and refers to all the metadata tables stored in the data storage unit 510 to retrieve the video data including the search keyword 505 in the metadata. The search is performed based on a partial match or a perfect match, and video data of the search result and metadata accompanying the search result 506 are output. A search keyword may be given by a set of an attribute name and an attribute value, or only by an attribute value.
[0060]
The data video editing processing unit 512 receives the video editing information 507, edits video data and metadata according to the content of the video editing information 507, and newly creates video data and metadata resulting from the processing. The stored data is stored in the data storage unit 510. Here, the video editing information 507 is, as shown in FIG. 6, text information including a plurality of lines, with three lines of a video ID, an In point, and an Out point as one line. A combination of a part (or the whole) of the video specified by each line and a part (or the whole) of the metadata is a final editing result. A video editing process according to the second embodiment will be described with reference to FIG.
[0061]
First, in step 1, variables are initialized from the received video editing information 701.
[0062]
First, a unique ID for the entire system to be added to newly created video data and its accompanying metadata is generated and stored in a variable ID. The variable N stores the number of lines of the video editing information 701, and the variable T stores 0. T is a variable used to associate the metadata being edited with the time from the beginning of the finally output video data. Specifically, each line of the video editing information, that is, the time information of the In point in the finally output video data of the video data clipped based on the video clipping information is represented by the time from the beginning of the video and stored. Will be.
[0063]
Next, in step 2, a “metadata table: ID” for storing the edited metadata is created in the data storage unit 510.
[0064]
Next, the processing from step 3 to step 8 is repeated while changing I from 1 to N.
[0065]
In step 4, for the I-th line of the video editing information, the values of the video ID, the In point, and the Out point are stored in ID, IN, and OUT, respectively.
[0066]
In step 5, a set of ID, IN, and OUT values is processed by the metadata cutout processing unit 511 as video cutout information, and the processing result is stored in M. The metadata extraction process is the same as that described in the first embodiment.
[0067]
In step 6, a result obtained by adding the value of T to all values of the In point and the Out point with respect to the processing result M is added to the last row of the “metadata table: ID” and stored. In the first process in the loop 1, the above result is added from the first row of “metadata table: ID”. By adding T, the In point and the Out point become time information from the beginning of the edited video data.
[0068]
Next, in step 7, the value of T is updated with T + (OUT−IN).
[0069]
Step 8 indicates the end of the loop from step 3.
[0070]
After the processing of the loop 1 is completed, in step S9, the metadata is merged. Specifically, the time information (In point and Out point) is referred to for all the metadata stored in the “metadata table: ID”, and the time information is continuous or overlapped, and the attribute is If the name and the attribute value match, it is regarded as one piece of metadata, and is aggregated into one piece of metadata. Specifically, the attribute name and attribute value of arbitrary metadata among the target metadata, the minimum value of the In point, and the maximum value of the Out point are set, and “metadata table: ID” is set as one metadata. , Then delete all of the target metadata.
[0071]
For example, “metadata table: ID” before the merge processing includes “attribute name: photographer, attribute value: Yamada, time: 10-20” as metadata 1 and “attribute name: photographer, attribute value” as metadata 2 : Yamada, time: 20-30 "is stored, and metadata of" attribute name: photographer, attribute value: Yamada, time: 10-30 "is added by performing the merge processing. The above metadata 1 and metadata 2 are deleted. Since the determination of equivalence is performed using a set of an attribute name and an attribute value, for example, it is not possible to merge semantically different metadata such as “performer: Yamada” and “director: Yamada”. There is no.
[0072]
Finally, in step 1, the video data is edited according to the information of the video editing information 701. The processing result is stored in the data storage unit in association with the ID. The editing of the video data is performed in such a manner that the cut-out videos are combined in the order of the lines in the video editing information 701.
[0073]
In the above embodiment, the video data management system having the video clipping processing function or the video editing function has been described, but the present invention is not limited to this. Further, in the above-described embodiment, the description has been made by limiting the management target to video data and a plurality of metadata associated therewith. However, the present invention is not limited to this. For example, audio data and a plurality of metadata By using the same method for metadata as in the present embodiment, the same effect as in the case of video data and a plurality of metadata attached thereto can be obtained. In the present specification, an object to be processed, such as the video or audio, may be referred to as “content”.
[0074]
The video data management device according to the present embodiment can also be realized by installing a program in a computer including a CPU, a memory, a disk device, and the like. The program is recorded on a computer-readable recording medium, for example, a floppy (registered trademark) disk, an MO, a ROM, a memory card, a CD-ROM, a DVD, a removable disk, and the like, and is stored or distributed. It is possible to do. Further, the program can be provided through a network such as the Internet or e-mail.
[0075]
It should be noted that the present invention is not limited to the above-described embodiment, and various modifications and applications are possible within the scope of the claims.
[0076]
【The invention's effect】
According to the present invention, when a user cuts out and uses only a part of a video or reconstructs a new video by combining a plurality of videos, the video and the metadata are added to all the metadata attached to the original video. Because similar clipping and editing processes are performed, the abstract metadata over multiple shots attached in the editing process is also inherited by the new video, and how the video was used in the past The problem that information cannot be known and the problem that it may be used for a purpose different from the original contents are solved.
[0077]
That is, according to the present invention, it is possible to compare only the video editing information (video clipping information) with the metadata time information and extract only the metadata corresponding to the video after editing (after clipping). Therefore, the existing metadata can be inherited at the time of secondary use of the video, and the trouble of newly inputting the metadata can be omitted.
[0078]
This makes it possible to produce a video from a new point of view and improves the accuracy of the content, thereby improving the quality of the video production.
[0079]
Further, in the present invention, the association between each piece of metadata and the corresponding portion of the video is performed using only the time information from the beginning of the video.
[0080]
According to this configuration, metadata input and editing work can be performed on an arbitrary portion of video, and the problem that metadata input and video editing can be performed only in shot units can be solved. Thereby, the metadata input and the video editing work can be performed flexibly.
[0081]
Further, in the present invention, in the metadata clipping process and the editing process, the time information for connecting each extracted metadata and the corresponding portion of the video is adjusted in accordance with the edited video in accordance with the edited video. Corrected.
[0082]
According to this configuration, the correspondence between the re-edited video data and the associated metadata can be uniquely determined, and the problem that metadata input in one system cannot be used in another system is solved. As a result, the metadata can be reused even in a system different from the video data management system that has input the metadata, and the video can be efficiently re-edited.
[0083]
Further, according to the present invention, in a metadata editing process, if a plurality of pieces of metadata whose time information is continuous or overlapped after editing and their attribute names and attribute values match, the metadata can be combined into one piece of metadata. it can.
[0084]
According to this configuration, it is possible to solve the problem that redundant data increases in the description of the edited metadata, and to efficiently perform the video search processing using the metadata.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a metadata table according to the first embodiment of the present invention.
FIG. 3 is a diagram showing video data cutout information according to the first embodiment of the present invention.
FIG. 4 is a flowchart of metadata extraction processing according to the first embodiment of the present invention.
FIG. 5 is a system configuration diagram according to a second embodiment of the present invention.
FIG. 6 is a diagram showing video editing information according to the second embodiment of the present invention.
FIG. 7 is a flowchart of a video editing process according to the second embodiment of the present invention.
FIG. 8 is a diagram for explaining a conventional technique.
[Explanation of symbols]
101, 106, 503 Video data
102, 107, 504 metadata
103,505 Search keywords
104, 506 search results
105 Video clipping information
108, 508 Data receiving unit
109, 510 Data storage unit
110, 509 Data search unit
111 Video Data Extraction Processing Unit
112, 511 Metadata extraction processing unit
113 Data output section
507 Video editing information
512 Video editing processing unit
800 videos
801, 802, 803, 804 shot switching
805 Metadata input interface
806 material area
807 Tree structure display area
809, 810, 811, 812, 813 Icon
815 Metadata input window
816 Check column
817 Input window
818 OK button

Claims (19)

A method of processing in a metadata editing device that edits metadata attached to content,
A cutout information for cutting out a predetermined portion of the target content, and a procedure for obtaining all metadata attached to the target content;
A process of associating attribute information in the metadata with a part of the part of the content corresponding to the metadata and a part overlapping with the content cut out based on the cut-out information is performed on each of the metas attached to the target content. Providing metadata to the data. Each of the metadata includes time information indicating a time section corresponding to the metadata in the content,
The process of associating the attribute information includes:
The time information in the cutout information is compared with the time information in the metadata to determine the overlapping portion, and the time information of the metadata associated with the overlapping portion is cut out based on the cutout information. The method according to claim 1, further comprising a process of generating information using a time based on the beginning of the information. When combining multiple pieces of content cut out based on the cut-out information into edited content,
The time information in the metadata attached to each content cut out based on the cut-out information by the metadata providing procedure is based on the order of the content in the edited content, and the information using the time from the beginning of the edited content and 3. The method of claim 2, further comprising the step of: A method of processing in a metadata editing device that edits metadata attached to content,
Among a plurality of metadata associated with the target content, a plurality of metadata having a temporally overlapping portion or being continuous on the content and having the same content is regarded as one metadata. A method comprising the steps of: 5. The method according to claim 4, wherein the same content means that the attribute name and the attribute value are the same. Each of the metadata includes information on attributes, In information and Out information indicating a time section in the content,
The procedure of using the same content as one piece of metadata includes a minimum In information, a maximum Out information, and a plurality of pieces of metadata among a plurality of pieces of metadata having a temporally overlapping portion or being continuous. 5. The method according to claim 4, further comprising a step of combining information on attributes that are the same among the attributes into one piece of metadata. A metadata editing device for editing metadata attached to content,
A cutout information for cutting out a predetermined portion of the target content, and a unit for acquiring all metadata attached to the target content;
A process of associating attribute information in the metadata with a part of the part of the content corresponding to the metadata and a part overlapping with the content cut out based on the cut-out information is performed on each of the metas attached to the target content. A metadata editing apparatus, comprising: a metadata assigning unit for performing data. Each of the metadata includes time information indicating a time section corresponding to the metadata in the content,
The process of associating the attribute information includes:
The time information in the cutout information is compared with the time information in the metadata to determine the overlapping portion, and the time information of the metadata associated with the overlapping portion is cut out based on the cutout information. The metadata editing apparatus according to claim 7, further comprising a process of setting information using a time based on a head of the metadata. When combining multiple pieces of content cut out based on the cut-out information into edited content,
The time information in the metadata attached to each content cut out based on the cut-out information by the metadata providing procedure is based on the order of the content in the edited content, and the information using the time from the beginning of the edited content and 9. The metadata editing apparatus according to claim 8, further comprising: A metadata editing device for editing metadata attached to content,
Among a plurality of metadata associated with the target content, a plurality of metadata having a temporally overlapping portion or being continuous on the content and having the same content is regarded as one metadata. A metadata editing apparatus comprising: 11. The metadata editing apparatus according to claim 10, wherein the same content means that the attribute name and the attribute value are the same. Each of the metadata includes information on attributes, In information and Out information indicating a time section in the content,
The means for using the same content as one piece of metadata includes a minimum In information, a maximum Out information, and a plurality of pieces of metadata among a plurality of pieces of metadata having a temporally overlapping portion or being continuous. The metadata editing apparatus according to claim 10, wherein the metadata editing apparatus according to claim 10 executes a procedure of combining information on attributes that are the same between the two to form one piece of metadata. A program that causes a computer to execute processing for editing metadata attached to content,
A cutout information for cutting out a predetermined portion of the target content, and a procedure for obtaining all metadata attached to the target content;
A process of associating attribute information in the metadata with a part of the part of the content corresponding to the metadata and a part overlapping with the content cut out based on the cut-out information is performed on each of the metas attached to the target content. A program for executing a metadata adding procedure to be performed on data. Each of the metadata includes time information indicating a time section corresponding to the metadata in the content,
The process of associating the attribute information includes:
The time information in the cutout information is compared with the time information in the metadata to determine the overlapping portion, and the time information of the metadata associated with the overlapping portion is cut out based on the cutout information. 14. The program according to claim 13, further comprising a process of setting information using a time based on the head of the information. When combining multiple pieces of content cut out based on the cut-out information into edited content,
The time information in the metadata attached to each content cut out based on the cut-out information by the metadata providing procedure is based on the order of the content in the edited content, and the information using the time from the beginning of the edited content and 15. The program according to claim 14, further comprising the step of: A program that causes a computer to execute processing for editing metadata attached to content,
Among a plurality of metadata associated with the target content, a plurality of metadata having a temporally overlapping portion or being continuous on the content and having the same content is regarded as one metadata. A program that causes the steps to be performed. 17. The program according to claim 16, wherein the same content means that the attribute name and the attribute value are the same. Each of the metadata includes information on attributes, In information and Out information indicating a time section in the content,
The procedure of using the same content as one piece of metadata includes a minimum In information, a maximum Out information, and a plurality of pieces of metadata among a plurality of pieces of metadata having a temporally overlapping portion or being continuous. 17. The program according to claim 16, further comprising a procedure of combining information on attributes that are the same between the two to form one piece of metadata. A computer-readable recording medium on which the program according to any one of claims 13 to 18 is recorded.

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