JP2006331189A - Content management apparatus, content management system, content management method, and content management program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content management apparatus capable of efficiently retrieving related contents. <P>SOLUTION: The content management apparatus 10 for managing electronic contents is provided with a metadata storage means 110 for storing relation information indicating relation between target contents to be processed and first related contents related to the target contents as metadata of the target contents and a content specifying means 112 for specifying the first related contents related to the target contents on the basis of the relation information stored in the metadata storage means 110. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a content management apparatus, a content management system, a content management method, and a content management program for managing electronic content.

  In recent years, multimedia contents using materials such as text data, images, and videos have become widespread. In such multimedia contents, the versatility of the contents is enhanced by adding metadata. For example, a technique for assigning a hash value to an electronic document and managing the electronic document based on the hash value is known (see, for example, “Patent Document 1”).

JP 2004-110893 A

  When generating content using various materials such as text data, video, and images, if you can associate the original material with the processed content and add metadata such as who created the material and content, Can be reused.

  However, when such metadata is to be added, the creator himself has to do the work, which is very expensive. In particular, when creating new content with reference to existing content generated by another person, it is difficult to specify from which material the existing content is generated.

  In addition, in order to specify the material content that is the content processing source, it is necessary to directly inquire the content creator, and efficient content generation has not been realized.

  The present invention has been made in view of the above, and an object thereof is to provide a content management apparatus capable of efficiently searching for related content.

  In order to solve the above-described problems and achieve the object, the invention according to claim 1 is a content management apparatus that manages electronic content, and relates to target content to be processed and the target content. Based on the metadata holding means for holding the relation information indicating the relation with the first related content as metadata of the target content, and the relation information held by the metadata holding means, Content specifying means for specifying the related first related content is provided.

  The invention according to claim 2 is the content management apparatus according to claim 1, further comprising metadata generation means for generating the relationship information as the metadata, wherein the metadata holding means is The relation information generated by the data generation means is stored as the metadata.

  The invention according to claim 3 is the content management apparatus according to claim 1 or 2, wherein the relation information is new content obtained by processing the target content by the first relation content. The processed content information indicates that the content specifying means specifies the new content for the target content as the first related content based on the processed content information.

  The invention according to claim 4 is the content management apparatus according to any one of claims 1 to 3, wherein the relation information includes the first related content as a processing source of the target content. Material content information indicating material content, wherein the content specifying unit specifies the material content for the target content as the first related content based on the material content information. To do.

  The invention according to claim 5 is the content management apparatus according to any one of claims 1 to 4, wherein the relation information is a first relation content identification for identifying the first relation content. It is information, The content specifying means specifies the first related content based on the first related content identification information.

  The invention according to claim 6 is the content management apparatus according to any one of claims 1 to 5, wherein the relation information further includes second relation contents related to the first relation contents. And the target content, the content specifying means specifies the second related content based on the relationship information.

  The invention according to claim 7 is the content management apparatus according to claim 6, wherein the relation information is second relation content identification information for identifying the second relation content, and the content The specifying means specifies the second related content based on the second related content identification information.

  The invention according to claim 8 is the content management apparatus according to any one of claims 1 to 7, wherein the relation information further includes creator information indicating a creator of the relation contents, The content specifying means specifies content created by a creator indicated in the creator information as the related content.

  The invention according to claim 9 is the content management apparatus according to any one of claims 1 to 8, wherein the relation information further includes creation date information indicating a creation date of the related content, The content specifying means specifies content created on the creation date shown in the creation date information as the related content.

  An invention according to claim 10 is the content management apparatus according to any one of claims 1 to 9, wherein the related content is a processed content obtained by processing the target content. The relation information further includes processing content information indicating processing content, and the content specifying means specifies the processing content subjected to the processing content indicated in the processing content information as the related content. And

  The invention according to claim 11 is the content management apparatus according to any one of claims 1 to 10, wherein the related content is a material content that is a processing source of the target content. The relationship information further includes processing content information indicating processing content, and the content specifying means specifies the material content that is a processing source of the processing content indicated in the processing content information as the related content. To do.

  The invention according to claim 12 is a content management system comprising: a content management device that manages electronic content; and a search device that searches for content managed by the content management device. The management device holds, as metadata, relationship information indicating a relationship between content to be processed and related content related to the target content, and the search device stores the relationship information held by the content management device Based on the above, the related content related to the target content is specified.

  According to a thirteenth aspect of the present invention, there is provided a content management method for managing electronic content, wherein the relationship information indicates the relationship between the target content to be processed and the first related content related to the target content. A content specifying step of specifying the first related content related to the target content based on the relation information held by the metadata holding means for holding the metadata as metadata of the target content And

  The invention according to claim 14 is a content management program, characterized by causing a computer to execute the content management method according to claim 13.

  The invention according to claim 15 is a content management method in a content management system comprising a content management device for managing electronic content and a search device for searching for content managed by the content management device. The relationship information indicating the relationship between the target content to be processed and the related content related to the target content is used as the metadata of the target content based on the relationship information held by the content management device. The apparatus includes a content specifying step of specifying related content related to the target content.

  According to the first aspect of the invention, the metadata holding unit uses the relationship information indicating the relationship between the target content to be processed and the first related content related to the target content as the metadata of the target content. Since the content specifying unit specifies the first related content related to the target content based on the relationship information held by the metadata holding unit, the content to be processed from the target content or the predetermined content The content related to the target content such as the content obtained by processing can be easily specified. Furthermore, since the content can be easily specified as described above, it is possible to greatly reduce the time required for content creation. Further, it is possible to easily incorporate a part of the content once created into the user's content and to apply to various content generation applications.

  According to the invention of claim 2, the metadata generation unit generates the relationship information as metadata, and the metadata holding unit holds the relationship information generated by the metadata generation unit as metadata. By referring to the generated metadata, it is possible to easily specify the content related to the target content.

  According to the invention of claim 3, the related information is processed content information indicating that the first related content is new content obtained by processing the target content, and the content specifying means includes: Since the new content for the target content is specified as the first related content based on the processed content information, there is an effect that the content related to the target content can be easily specified. Furthermore, there is an effect that new content can be specified.

  According to the invention of claim 4, the related information is material content information indicating that the first related content is a material content that is a processing source of the target content, and the content specifying means includes the material content. Since the material content for the target content is specified as the first related content based on the information, there is an effect that the content related to the target content can be easily specified. Further, the material content can be specified.

  According to the invention of claim 5, the related information is first related content identification information for identifying the first related content, and the content specifying means is based on the first related content identification information. Since the first related content is specified, there is an effect that the content related to the target content can be easily specified.

  According to the invention of claim 6, the relationship information further indicates the relationship between the second related content related to the first related content and the target content, and the content specifying means is based on the related information. Since the second related content is specified, there is an effect that the content related to the target content can be easily specified. Furthermore, there is an effect that even content indirectly related to the target content can be specified.

  According to the invention of claim 7, the related information is second related content identification information for identifying the second related content, and the content specifying means is based on the second related content identification information. Since the second related content is specified, there is an effect that the content related to the target content can be easily specified.

  According to the invention of claim 8, the relationship information further includes creator information indicating a creator of the related content, and the content specifying means indicates the content created by the creator indicated by the creator information. Since the related content is specified, there is an effect that the content related to the target content can be easily specified. Furthermore, there is an effect that the content can be specified using the creator as a search key.

  According to the invention of claim 9, the relation information further includes creation date information indicating the creation date of the related content, and the content specifying means indicates the content created at the creation date indicated in the creation date information, Since the related content is specified, there is an effect that the content related to the target content can be easily specified. Furthermore, there is an effect that the content can be specified using the creation date and time as a search key.

  According to the invention of claim 10, when the related content is a processed content obtained by processing the target content, the related information further includes processed content information indicating the processed content, and the content specifying means includes Since the processed content to which the processing content indicated in the processing content information is applied is specified as the related content, the content related to the target content can be easily specified. Furthermore, there is an effect that the content can be specified using the processed content as a search key.

  According to the invention of claim 11, when the related content is a material content that is a processing source of the target content, the related information further includes processing content information indicating the processing content, and the content specifying means includes the processing content. Since the material content that is the processing source of the processing content indicated in the content information is specified as the related content, there is an effect that the content related to the target content can be easily specified. Furthermore, there is an effect that the content can be specified using the processed content as a search key.

  According to the invention of claim 12, the content management device holds the relationship information indicating the relationship between the content to be processed and the related content related to the target content as metadata, and the search device Since the related content related to the target content is specified based on the related information held by the content management apparatus, there is an effect that the content related to the target content can be easily specified.

  According to the invention of claim 13, in the content specifying step, the relationship information indicating the relationship between the target content to be processed and the first related content related to the target content is represented by the metadata of the target content. Since the first related content related to the target content is specified based on the related information held by the metadata holding means held as, the effect that the content related to the target content can be easily specified. Play.

  According to the fourteenth aspect of the present invention, in the content specifying step, the relationship information indicating the relationship between the target content to be processed and the first related content related to the target content is used as metadata of the target content Since the first related content related to the target content is specified based on the related information held by the metadata holding means held as, the effect that the content related to the target content can be easily specified. Play.

  According to the fifteenth aspect of the present invention, in the content specifying step, the relationship information indicating the relationship between the target content to be processed and the related content related to the target content is used as content management metadata as content management. Since the search device specifies related content related to the target content based on the related information held by the device, there is an effect that the content related to the target content can be easily specified.

  Exemplary embodiments of a content management apparatus, a content management system, a content management method, and a content management program according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing a functional configuration of the content management apparatus 10 according to the first embodiment of the present invention. The content management apparatus 10 includes a content acquisition unit 100, a content processing unit 102, a metadata generation unit 104, a metadata management unit 106, a metadata search unit 108, a metadata database (DB) 110, and content management. Unit 112 and a content database (DB) 114.

  The content acquisition unit 100 acquires content from outside.

  The content processing unit 102 processes the material content using the material processing software and creates new content. Here, the material content is content to be processed, and the new content is content after processing.

  The metadata generation unit 104 generates metadata of the new content created by the content processing unit 102 and the material content of the processing source. Note that the metadata generation function may be provided in the material processing software or may be provided as a plug-in.

  The metadata generated by the metadata generation unit 104 includes a material processor, a material processing type (cut, effect addition, super addition, etc.), material processing date and time, and a material processing source material name. Here, the material processing source material name is information indicating other content of the processing source when the material content is content obtained by processing other content.

  The metadata management unit 106 manages the metadata DB 110. Specifically, the metadata created by the metadata generation unit 104 is stored in the metadata DB 110 in association with the material content or the new content.

  The metadata search unit 108 searches for metadata stored in the metadata DB 110 according to an instruction from the outside. The metadata search unit 108 also searches for metadata stored in other terminal devices connected to the network 15.

  The content DB 114 stores various contents such as material content to be processed by the content processing unit 102 and new content created by the content processing unit 102.

  The content management unit 112 manages the content DB 114. Specifically, the content management unit 112 newly stores content acquired via the network 15 in the content DB 114. In addition, the content stored in the content DB 114 is provided to the outside via the network 15.

  FIG. 2 is a diagram showing an overall configuration of a network system including the content management apparatus 10. As shown in FIG. 2, the content management apparatus 10 is connected to other terminal apparatuses 11 to 14 via a network 15. Then, the content management apparatus 10 transmits / receives metadata and content via the network 15.

  Hereinafter, the processing of each unit of the content management apparatus 10 will be described more specifically. FIG. 3 shows specific examples of material content and new content. Assume that video data 200 is given as a processing target of the content processing unit 102. Then, the content processing unit 102 extracts the partial video data 210 from the video data 200 and uses it as new content. Here, the video data 200 is material content, and the partial video data 210 is new content.

  In addition, the metadata generation unit 104 generates metadata when the content processing unit 102 extracts the partial video data 210 from the video data 200 and performs a process of creating new content. Specifically, the material content ID, material content creation date / time, material content creator, new content ID, new content creation date / time, new content creator, specific information of the partial video data 210 and material processing type are created as metadata. To do.

  Here, the material content ID is information for identifying the material content. The new content ID is information for identifying new content. The specific information of the partial video data 210 is information indicating which part of the video data 200 the partial video data 210 is. Specifically, this is information indicating the start time and end time of the partial video data 210.

  The material processing type is information indicating the details of processing performed by the content processing unit 102. Specifically, it is information indicating that a part has been extracted from the video data 200.

  Further, when a material content ID is previously assigned to the material content, this is used as metadata. Similarly, when metadata is added to the material content, this is used as metadata.

When the material content ID is “1234567” and the new content ID is “2345678”, the metadata management unit 106 assigns the following information to the material content as metadata.

<ID>
1234567
</ ID>
<From>
<when> 2004/08/20 13:32:08 </ When>
<Operator> nozomu </ Operator>
<Media> DVtape Capture </ Media>
</ From>
<To>
<when> 2004/08/23 11:25:12 </ When>
<StartTime> 00: 10: 00: 00 </ StartTime>
<EndTime> 00: 12: 00: 00 </ EndTime>
<Operator> takako </ Operator>
<ID> 2345678 </ ID>
</ To>

  Thus, material content ID, material content creation date, material content creator, material content extraction source, creation date of new content created from material content, position of new content in material content, creator of new content The metadata including the new content ID is added to the material content.

Further, the following metadata is given to the new content.

<ID>
2345678
</ ID>
<From>
<ID> 1234567 </ ID>
<when> 2004/08/23 11:25:12 </ When>
<StartTime> 00: 10: 00: 00 </ StartTime>
<EndTime> 00: 12: 00: 00 </ EndTime>
<Operator> takako </ Operator>
</ From>

  In this way, metadata including a new content ID, a material content ID, a new content creation date, a new content extraction source, and a creator of the new content is added to the new content.

  The metadata for material content includes not only information on material content but also information on new content created by processing material content. Therefore, new content created from the material content can be identified by referring to the metadata of the material content.

  Similarly, the metadata for the new content includes not only the information on the new content but also information on the material content that is the processing source data of the new content. Therefore, by referring to the metadata of the new content, the material content that is the processing source of the new content can be specified.

  For example, it is assumed that a user of the content management apparatus 10 creates new content using a video that has been seen before. In this case, content including a video that has been viewed is searched and acquired by the following processing. FIG. 4 is a flowchart showing content search processing.

  First, designation of metadata assigned to the new content is accepted (step S100). For example, when the material content ID of the material content to be searched is assigned to the new content, the material content ID is used as the search key. When the material content ID is not assigned, other metadata such as a new content creator is designated as a search key.

  Next, the metadata search unit 108 searches for metadata received in the metadata DB 110 via the metadata management unit 106. If the specified metadata exists in the metadata DB 110 (step S102, Yes), the content management unit 112 acquires content corresponding to the metadata from the content DB 114 (step S106).

  Thus, according to the present embodiment, the material content can be easily specified based on the metadata assigned to the new content.

  On the other hand, if the specified metadata does not exist in the metadata DB 110 (No in step S102), the metadata search unit 108 searches the metadata for the other terminal devices 11 to 14 via the network 15. As inquiries. When the metadata exists in the other terminal devices 11 to 14 (step S104, Yes), the content management unit 112 selects the content corresponding to the metadata existing in the other terminal devices 11 to 14 via the network 15. Is acquired from the other terminal devices 11 to 14 (step S106). In the other terminal devices 11 to 14 as well, if there is no metadata, a notification that there is no metadata is sent (step S108). This completes the metadata search process.

  As described above, when the content management apparatus 10 is connected to another terminal device, the content stored in the other terminal device can also be searched.

  As described above, according to the content management apparatus 10 according to the present embodiment, it is possible to generate multimedia content including text, images, videos, and the like using various materials. Further, at this time, since the metadata of the material content can be automatically extracted, the processing efficiency can be improved.

  Note that the content and the metadata may be stored in the same terminal device, and as another example, may be stored in different terminal devices. However, it is assumed that the metadata includes information indicating the storage location of the content.

  FIG. 5 is a diagram illustrating a hardware configuration of the content management apparatus 10 according to the first embodiment. The content management device 10 has, as a hardware configuration, a ROM 52 that stores a content management program that executes content management processing in the content management device 10, and a CPU 51 that controls each unit of the content management device 10 according to the program in the ROM 52. A RAM 53 that stores various data necessary for control of the content management apparatus 10, a communication I / F 57 that communicates by connecting to a network, and a bus 62 that connects each unit are provided.

  The content management program in the content management apparatus 10 described above is a file in an installable or executable format on a computer-readable recording medium such as a CD-ROM, floppy (R) disk (FD), or DVD. It may be recorded and provided.

  In this case, the content management program is loaded onto the main storage device by being read from the recording medium and executed by the content management device 10 so that each unit described in the software configuration is generated on the main storage device. It has become.

  Further, the content management program according to the present embodiment may be configured to be provided by being stored on a computer connected to a network such as the Internet and downloaded via the network.

  As described above, the present invention has been described using the embodiment, but various changes or improvements can be added to the above embodiment.

  As such a first modification, when the material content that is the processing source of the new content is content obtained by further processing other material content, information indicating the other material content is included in the new content. You may give as metadata.

  For example, among the contents shown in FIG. 6, the processed content 320 is content obtained by processing the processed content 310. The processed content 310 is content obtained by processing the material content 300. In this case, information indicating the material content 300 is added to the processed content 310 as metadata. Further, information indicating the processed content 320 is given as metadata.

Specifically, the material information 300 is given the following information as metadata. Here, the material content ID “1234567”, the processed content 310 content ID “2345678”, and the processed content 320 content ID “3456789”.

<ID>
1234567
</ ID>
<From>
<when> 2004/08/20 13:32:08 </ When>
<Operator> nozomu </ Operator>
<Media> DVtape Capture </ Media>
</ From>
<To>
<when> 2004/08/23 11:25:12 </ When>
<StartTime> 00: 10: 00: 00 </ StartTime>
<EndTime> 00: 12: 00: 00 </ EndTime>
<Operator> takako </ Operator>
<ID> 2345678 </ ID>
</ To>
<To>
<when> 2004/08/25 09:08:44 </ When>
<StartTime> 00: 05: 00: 00 </ StartTime>
<EndTime> 00: 07: 00: 00 </ EndTime>
<Operator> takeshi </ Operator>
<ID> 11223344 </ ID>
</ To>

The processed content 310 is given the following information as metadata.

<ID>
2345678
</ ID>
<From>
<ID> 1234567 </ ID>
<when> 2004/08/23 11:25:12 </ When>
<StartTime> 00: 10: 00: 00 </ StartTime>
<EndTime> 00: 12: 00: 00 </ EndTime>
<Operator> takako </ Operator>
</ From>
<To>
<ID> 3456789 </ ID>
<when> 2004/08/24 15:20:27 </ When>
<StartTime> 00: 01: 00: 00 </ StartTime>
<EndTime> 00: 02: 00: 00 </ EndTime>
<Operator> takeshi </ Operator>
</ To>

Further, the processed information 320 is given the following information as metadata.

<ID>
3456789
</ ID>
<From>
<ID> 2345678 </ ID>
<when> 2004/08/24 15:20:27 </ When>
<StartTime> 00: 01: 00: 00 </ StartTime>
<EndTime> 00: 02: 00: 00 </ EndTime>
<Operator> takeshi </ Operator>
</ From>

  In this way, even if there is no entity file of the intermediate processed material, the original material can be specified if there is metadata of the intermediate processed material.

  As another example, the content ID of the processed content 310 and the content ID of the material content 300 may be given to the processed content 320 as metadata. Also in this case, the material content 300 can be specified from the processed content 320.

  As a second modification, as shown in FIG. 7, when a plurality of material contents are processed to create a new content, content IDs of the plurality of material contents are assigned to the new content. May be. Thereby, each material content can be specified.

The processed content 350 shown in FIG. 7 is given the following information as metadata.

<ID>
9999
</ ID>
<From>
<ID> 1122 </ ID>
<when> 2004/08/24 15:20:27 </ When>
<StartTime> 00: 01: 00: 00 </ StartTime>
<EndTime> 00: 02: 00: 00 </ EndTime>
<Operator> takeshi </ Operator>
</ From>
<From>
<ID> 3344 </ ID>
<when> 2004/08/24 04:11:07 </ When>
<StartTime> 00: 03: 00: 00 </ StartTime>
<EndTime> 00: 07: 00: 00 </ EndTime>
<Operator> takeshi </ Operator>
</ From>

As described above, since the processed content 350 is provided with the content IDs of the two processed contents 340 and 342 as metadata, each of the two processed contents can be specified. Furthermore, since the content IDs of the material contents 330 and 332 serving as the processing sources are assigned to the two processed contents 340 and 342 as metadata, the respective material contents can be specified.

(Embodiment 2)
FIG. 8 is a block diagram of the overall configuration of the content management system 20 according to the second embodiment. The content management system according to the second exemplary embodiment includes a content processing device 21 and a content management device 22. The content processing device 21 and the content management device 22 transmit and receive data via the network 15. As another example, data transmission / reception may be performed using USB or the like.

  The content processing device 21 processes content and the like. Specifically, the content processing device 21 includes a content acquisition unit 100, a content processing unit 102, a content management unit 112, and a content DB 114.

  When the content processing unit 102 processes new content, the content processing unit 102 instructs the content management apparatus 22 to generate metadata. Further, the content management unit 112 receives a content search instruction from the content management device 22.

  The content management device 22 generates and manages metadata. Specifically, the content management apparatus 22 includes a metadata generation unit 104, a metadata management unit 106, a metadata search unit 108, and a metadata DB 110. When the metadata generation unit 104 acquires a metadata generation instruction from the network 15, the metadata generation unit 104 generates metadata related to the new content created by the content processing unit 102.

  Thus, in the content management system 20 according to the second embodiment, since the content management device 22 is provided independently, even if the content processing device 21 does not have a metadata generation function, content The management device 22 can manage metadata of content managed by the content processing device 21.

  Also, the content processing apparatus 21 does not need a data area for holding metadata. Further, when each terminal device searches for a predetermined content, the content stored in all the terminals to be searched can be specified by accessing the content management device 22.

  The remaining configuration and processing of the content management system 20 according to the second embodiment are the same as the configuration and processing of the content management apparatus 10 according to the first embodiment.

(Embodiment 3)
FIG. 9 is a block diagram of an overall configuration of the content management system 30 according to the third embodiment. The content management system 30 according to the third embodiment includes a content management device 31 and a metadata generation device 32.

  The content management device 31 includes a content acquisition unit 100, a content processing unit 102, a metadata management unit 106, a metadata search unit 108, a metadata DB 110, a content management unit 112, a content DB 114, and metadata generation. And an instruction unit 120.

  The metadata generation instruction unit 120 instructs the metadata generation device 32 to generate metadata for the new content created by the content processing unit 102. The metadata generation device 32 generates metadata of new content in accordance with an instruction from the metadata generation instruction unit 120. The metadata generation device 32 sends the generated metadata to the content management device 31. The metadata DB 110 stores metadata generated by the metadata generation device 32.

  As described above, according to the content management system 30 according to the third embodiment, by using an independent device for generating metadata, even if the content management device 31 does not have a metadata generation function, content can be stored using metadata. Can be managed.

  In this case, when requesting generation of metadata, the metadata generation instruction unit 120 transmits the registrant name (processor name), the processed data, and the original material data to the metadata generation device 32. To do. The metadata generation device 32 searches for the metadata of the material content and sends it to the content management device 31. If the metadata of the material content cannot be found, the metadata of the material content is newly generated.

  The configuration and processing of the content management system 30 according to the third embodiment are the same as the configuration and processing of the content management apparatus 10 according to the first embodiment.

1 is a block diagram showing a functional configuration of a content management apparatus 10 according to a first embodiment. 1 is a diagram illustrating an overall configuration of a network system including a content management device 10. FIG. It is a figure which shows the specific example of material content and new content. It is a flowchart which shows the search process of content. 2 is a diagram illustrating a hardware configuration of a content management apparatus 10 according to the first embodiment. FIG. It is a figure which shows the relationship between new content and material content. It is a figure which shows the relationship between new content and material content. It is a block diagram which shows the whole structure of the content management system 20 concerning Embodiment 2. FIG. It is a block diagram which shows the whole structure of the content management system 30 concerning Embodiment 3. FIG.

Explanation of symbols

51 CPU
52 ROM
53 RAM
57 Communication I / F
62 Bus 10 Content Management Device 11-14 Terminal Device 15 Network 20, 30 Content Management System 21, 31 Content Processing Device 22 Content Management Device 32 Metadata Generation Device 100 Content Acquisition Unit 102 Content Processing Unit 104 Metadata Generation Unit 106 Metadata Management unit 108 Metadata search unit 110 Metadata DB
112 Content management unit 114 Content DB
120 Metadata generation instruction unit 200 Video data 210 Partial video data

Claims (15)

A content management device for managing electronic content,
Metadata holding means for holding, as metadata of the target content, relationship information indicating a relationship between the target content to be processed and the first related content related to the target content;
A content management apparatus comprising: content specifying means for specifying the first related content related to the target content based on the relation information held by the metadata holding means. Metadata generation means for generating the relationship information as the metadata;
The content management apparatus according to claim 1, wherein the metadata holding unit holds the relation information generated by the metadata generation unit as the metadata. The related information is processed content information indicating that the first related content is new content obtained by processing the target content,
The content management apparatus according to claim 1, wherein the content specifying unit specifies the new content for the target content as the first related content based on the processed content information. The related information is material content information indicating that the first related content is material content that is a processing source of the target content,
The said content specific | specification part specifies the said material content with respect to the said target content as a said 1st related content based on the said material content information, The Claim 1 characterized by the above-mentioned. Content management device. The related information is first related content identification information for identifying the first related content,
5. The content management apparatus according to claim 1, wherein the content specifying unit specifies the first related content based on the first related content identification information. 6. The relationship information further indicates a relationship between the target content and second related content related to the first related content,
The content management apparatus according to claim 1, wherein the content specifying unit specifies the second related content based on the relationship information. The related information is second related content identification information for identifying the second related content,
The content management apparatus according to claim 6, wherein the content specifying unit specifies the second related content based on the second related content identification information. The relation information further includes creator information indicating a creator of the relation content,
The content management apparatus according to any one of claims 1 to 7, wherein the content specifying unit specifies content created by a creator indicated by the creator information as the related content. The relation information further includes creation date information indicating a creation date of the related content,
The content management apparatus according to any one of claims 1 to 8, wherein the content specifying unit specifies, as the related content, a content created on a creation date and time indicated in the creation date and time information. When the related content is processed content obtained by processing the target content, the related information further includes processed content information indicating processed content,
The content management according to any one of claims 1 to 9, wherein the content specifying unit specifies, as the related content, the processed content to which the processing content indicated by the processing content information is applied. apparatus. When the related content is material content that is a processing source of the target content, the related information further includes processing content information indicating processing content,
The content according to any one of claims 1 to 10, wherein the content specifying unit specifies, as the related content, the material content that is a processing source of the processing content indicated in the processing content information. Management device. A content management system comprising: a content management device that manages electronic content; and a search device that searches for content managed by the content management device,
The content management apparatus holds, as metadata, relationship information indicating a relationship between content to be processed and related content related to the target content,
The content management system characterized in that the search device specifies related content related to the target content based on the related information held by the content management device. A content management method for managing electronic contents,
In the relation information held by the metadata holding means for holding the relation information indicating the relation between the target content to be processed and the first related content related to the target content as metadata of the target content. A content management method comprising: a content specifying step of specifying the first related content related to the target content based on the content.   A content management program for causing a computer to execute the content management method according to claim 13. A content management method in a content management system comprising: a content management device that manages electronic content; and a search device that searches for content managed by the content management device,
Based on the relationship information held by the content management device, the search device uses the relationship information indicating the relationship between the target content to be processed and the related content related to the target content as metadata of the target content. A content management method comprising a content specifying step of specifying related content related to the target content.

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