JP2005135146A - Server for disclosing content information, method and program for supporting use of content, and recording medium for recording this program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily search for and disclose contents on a network. <P>SOLUTION: Information about registrants of contents is inputted and registered in a recording means and information about attributes of the contents including licensing is registered in the recording means. Feature amounts of the contents are calculated and registered in the recording means, whereby information about the registrants of the contents, the attribute information and the feature amounts are recorded in the recording means. The information recorded in the recording means is displayed or consulted to search for the contents and display the search results. Detailed information about the contents is disclosed to facilitate searches for the desired contents. The licensing information is disclosed whereby a system suited for managing personal contents under slack copyright control can be constructed. Binding the contents and copyrights is made possible to prevent copyright infringement. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention provides a content information publishing server that makes it easy to search and publish content on a network, and is executed by the content information publishing server to facilitate the search and publishing of content on a network. The present invention relates to a content use support method to be realized, a content use support program used for realizing the content use support method, and a recording medium on which the program is recorded.

  Various techniques have been proposed for enabling information related to content to be searched. For example, Google (http://www.google.com), a typical search site, can search based on text information attached to content, or search and display still images. .

  Such search sites are characterized by the fact that content existing on the Internet is periodically acquired using a search robot, so that there is no need to register content.

  In addition to publicly available search sites, there are business-oriented content management systems for content holders, content retailers, and content distributors.

  The rights distribution platform constructed as such a business-oriented content management system integrates content by assigning content IDs to individual content and protecting the rights of the content using DRM (Digital Rights Management). (See, for example, Non-Patent Document 1).

  The rights distribution platform has a function for protecting the rights of content, but there is a system that focuses on the notation of creation rights for freely using the content.

Common Content (http://www.commoncontent.org), which is constructed as such a system, provides a system capable of registering content attribute information and searching for content based on that information. Using the creation rights notation of Commons (http://creativecommons.org), it is possible to register the license as part of the attribute information. Such a notation of creation rights has been noted as a license for content, so that consumers can use the content with peace of mind and promote secondary use of the content. .
NTT Technical Journal Vol.14, No.10, 2002

  Although general search sites such as Google have a wide range of search targets, it is possible to obtain various contents. For example, when searching for image contents, the search key is used as the file name. There is a problem that it is difficult to find a desired content because detailed information about the content is not registered.

  In addition, the rights distribution platform is based on the viewpoint of protecting content from copyright infringement and has a mechanism to prevent unauthorized copying using DRM technology. Complicated operations are required, and it is particularly unsuitable for managing personal contents.

  In addition, a system with creative rights notation for freely using content has the effect of promoting secondary use of content and stimulating the creativity of creators, and manages personal content under moderate copyright management. Suitable for

  However, since this system does not have a mechanism such as DRM, it is difficult to bind content and creation rights. Currently, the creation rights are only described on the website using icons and the like. Management of content such as photos is insufficient. From now on, for example, even if it is replaced for some time, it is difficult to bind the content and the creative right, so before the replacement, means to prove that another content was published in the creative right notation There is no.

  This is because when the content before the replacement was published on the condition that it can be used freely, the person who used the content became unusable for some time, or another person's content was changed to another There is a possibility that it may become a problem such as being released under the conditions of use.

  In addition, when dealing with personal contents, there is a problem of unauthorized use of music. In particular, in the case of video, without knowing that it has been recorded in the video because the music that happened to be used at the shooting site accidentally used the copyright that exists as BGM, it was released as it was and the copyright was released. Sometimes it becomes an infringement. In order to prevent such a problem, when music is included in the content to be released, it is necessary for the system side to call attention.

Under this background, the present invention builds a new content information publishing server that makes it easy to search and publish content on the network.
(1) Resolving the problem of general search sites that it is difficult to find the desired content because detailed information about the content is not registered,
(2) Although it has a mechanism to prevent unauthorized copying etc. using DRM technology, it requires complicated operations when acquiring content, and is particularly unsuitable for managing personal content. , Solve problems with rights distribution platform,
(3) By not having a mechanism such as DRM, it is difficult to bind content and creation rights, and the problem with the system with creation rights notation to use content freely is solved.
(4) Resolve the problem of unauthorized use of music that occurs when handling personal content,
For the purpose.

  In order to achieve this object, the content information release server of the present invention includes (a) a recording means for recording information relating to content, and (b) a user who inputs information of a registrant of content and registers in the recording means. Registration means, (c) attribute information registration means for inputting content attribute information including use permission and registering it in the recording means, and (d) what can calculate the feature amount of the content and register it in the recording means A feature amount calculating means for registering the content, and (e) referring to the information recorded in the recording means, searching for the content using at least one of the content registrant's information, attribute information, and feature amount And (f) display means for displaying the information recorded in the recording means or the search results of the search means.

  When adopting this configuration, the attribute information registration means, as the content usage permission, among the author display, secondary work prohibition, non-commercial use, secondary work same condition permission, profit reduction, At least one of the permissions may be registered.

  Further, the feature amount calculating means calculates the feature amount of the content as a hash value calculating means for calculating a hash value, an electronic watermark embedding means for embedding a digital watermark, and if the content has audio information, the feature information is calculated from the audio information. It may include at least one of music detection means for automatically detecting music, and the music detection means uses the fact that the peak of the frequency spectrum of audio information is stably maintained in the frequency direction. May be detected.

  The content use support method of the present invention executed by operating the user registration means / attribute information registration means / feature amount calculation means / search means / display means described above can be realized by a computer program. The program is provided by being recorded on an appropriate recording medium such as a semiconductor memory or provided via a network, and is installed when the present invention is carried out to operate on a control means such as a CPU. The invention will be realized.

  In the content information publishing server of the present invention configured as described above, the content registrant information is input and registered in the recording means, the content attribute information including the license is input and registered in the recording means, and the content The feature registrant information, attribute information, and feature amount are recorded in the recording unit.

  Then, the information recorded in the recording means is displayed or the information recorded in the recording means is referred to, and at least one of content registrant information, attribute information, and feature amount is used. Search for content and process to display the search results.

  (1) According to the present invention, by registering information of a content registrant in the recording unit, registering attribute information of the content including the use permission in the recording unit, and registering a feature amount of the content in the recording unit, Information on the content registrant, attribute information, and feature amount can be recorded in the recording means, thereby enabling the information on the content including the license to be disclosed and the content registrant information and content information. The content can be searched using the attribute information and the feature amount of the content.

  (2) According to the present invention, at least one of author display, secondary copyright prohibition, non-commercial use, secondary license identical condition license, and profit reduction can be used as a content license. It is possible to register two licenses, which allows for gradual copyright management that facilitates the free use of content and allows the creation rights to be represented.

  (3) According to the present invention, by calculating a hash value as a feature amount of content and embedding a digital watermark, it is possible to bind the content to the creation right and prevent copyright infringement. In addition, when there is audio information in the content, by automatically detecting music from the audio information, it is possible to prevent copyright infringement due to the use of music with copyright.

  (4) According to the present invention, the automatic detection of music uses the fact that the peak of the frequency spectrum of audio information is stably maintained in the frequency direction, so that music can be detected stably. Become.

  Hereinafter, the present invention will be described in detail according to embodiments.

  FIG. 1 illustrates the overall configuration of a system in which the content information disclosure server 1 of the present invention is installed.

  As shown in this figure, the content information disclosure server 1 of the present invention is installed in a form connected to a creator or a terminal 2 operated by a user via a network 3.

  FIG. 2 illustrates an embodiment of the content information disclosure server 1 of the present invention.

  The content information publishing server 1 according to the present embodiment includes a user registration unit 101 for registering information of a content registrant, an attribute information registration unit 102 for registering content attribute information including use permission, and a content feature amount. Using at least one of the feature quantity calculation means 103 to be calculated, the recording means 104 for recording content registrant information, attribute information and feature quantity, and the content registrant information, attribute information and feature quantity. The search means 105 for searching for content and the display means 106 for displaying information recorded in the recording means 104 and displaying the search results of the search means 105 are configured.

  FIG. 3 shows a flowchart showing the flow of processing in the content information disclosure server 1 of the present embodiment.

  Next, according to this flowchart, processing in the content information disclosure server 1 of the present embodiment will be described in detail.

  First, the creator performs user registration before registering content information. If it is determined by the user registration determination process 201 that no user registration has been made, the user registration process 202 registers creator information. Information to be registered includes a user name, country, profile, contact information, and the like.

  Subsequently, information related to the content is registered by the attribute information registration processing 203. Examples of information to be registered include a content ID, a content location (URL), a title, a genre, a format, an outline, and a license.

  The content ID can be automatically generated. For the content ID system, a system such as a content ID forum (http://www.cidf.org) can be used. Regarding the license, at least one of the author's display, secondary copyright prohibition, non-commercial use, secondary license identical condition license, and profit return is registered.

  Here, the author display is prepared to indicate that it is obliged to display the author's name when the content is secondarily used. The secondary work prohibition is prepared to indicate that the modification of the content is prohibited. Non-commercial use is prepared to indicate that the use of content for commercial purposes is prohibited. The same-condition permission for the secondary work is prepared to indicate that the derivative content is obliged to be granted the same license as the original content. The profit return is prepared to indicate that the profit brought about by the secondary use of the content is obliged to return the profit to the author in some form.

  For these license terms, for example, Creative Commons (http://creativecommons.org) that grants the right to create digital content can be used. In Creative Commons, it is possible to express conditions such as attribution / attribute of digital content, use for commercial purposes, reproduction, distribution, display, performance, and obligation to inherit rights to derivative works. In addition, the Agency for Cultural Affairs' free-use mark (http://www.bunka.go.jp/jiyuriyo) and the d-mark proposed by Shinichiro Hayashi (http://www.glocom.ac.jp/users/hayashi/ 991018.pdf) can also be used.

  Subsequently, in the feature amount calculation process, the hash value calculation process 204 calculates and registers the hash value of the content. For the calculation of the hash value, a hash function such as SHA-1 or MD5 can be used.

  If the content is an image, a digital watermark is embedded. Whether or not the content is an image is determined by the image data determination processing 205, and if it is an image, the digital watermark is embedded by the digital watermark embedding processing 206. Information to be embedded includes automatically generated content IDs and the like.

  Further, it is determined whether or not the audio information is included in the content by the audio information determination processing 207. If the audio information is included, the music detection processing 208 detects whether or not the audio information includes music.

  If music is included, the creator is informed and asked to confirm that there is no copyright infringement. In the music detection processing 208, when audio information is subjected to frequency analysis, a method using a feature amount that a stable spectrum peak continues in a frequency direction can be used for a portion including music.

  With respect to the information calculated in the feature amount calculation process, the creator can select whether or not to calculate arbitrarily.

  The information registered in this way is recorded in the recording means 104 by the recording process 209, and is stored in the database format.

  From now on, the user can search the content based on the registered information by the search means 105, and the search result is displayed by the display means 106.

  In this search result, the URL indicating the location of the content and the usage permission can be displayed. Based on the URL, the user can access the content on the network by the hyperlink.

  In this way, by providing the content information disclosure server 1 of the present invention, detailed information about the content is disclosed, so that the user can easily find the desired content. Become.

  Then, by providing the content information disclosure server 1 of the present invention, information on the use permission such as author display, secondary work prohibition, non-commercial use, secondary work same condition permission, profit return, etc. Will make it possible to build a system suitable for promoting secondary use of content, creativity of creators, and managing personal content under moderate copyright management.

  In addition, when the content information disclosure server 1 of the present invention is prepared, in the case of constructing a system suitable for managing personal content under gradual copyright management, the binding between the content and the creation right is performed. Will be able to prevent copyright infringement.

  By providing the content information disclosure server 1 of the present invention, when there is audio information in the content, the music is automatically detected from the audio information, thereby infringing the copyright due to the use of the copyrighted music. Can be prevented.

It is explanatory drawing of the system by which the content information disclosure server of this invention is installed. It is an example of 1 embodiment of the content information disclosure server of this invention. It is a flowchart which shows the flow of a process in the content information disclosure server of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Content information disclosure server 2 Terminal 3 Network 101 User registration means 102 Attribute information registration means 103 Feature amount calculation means 104 Recording means 105 Search means 106 Display means

Claims (10)

A content information publishing server for publishing information including content usage permission,
Recording means for recording information about the content;
User registration means for inputting content registrant information and registering in the recording means;
Attribute information registration means for inputting the attribute information of the content including the license and registering it in the recording means;
A feature amount calculating means for calculating a feature amount of the content and registering it for the recording means;
Search means for searching for content by using at least one of information of a content registrant, attribute information, and feature amount with reference to information recorded in the recording means;
Comprising information displayed in the recording means or display means for displaying the search results,
Feature content information disclosure server. In the content information disclosure server according to claim 1,
The attribute information registration means may use at least one of the author's indication, secondary work prohibition, non-commercial use, secondary work's same condition permission, and profit return as content use permission. That you can register
Feature content information disclosure server. In the content information disclosure server according to claim 1 or 2,
The feature amount calculating means is a hash value calculating means for calculating a hash value, a digital watermark embedding means for embedding a digital watermark, and audio content in the content if there is audio information. Including at least one of music detection means for automatically detecting
Feature content information disclosure server. In the content information disclosure server according to claim 3,
The music detection means detects music using the fact that the peak of the frequency spectrum of audio information is stably maintained in the frequency direction.
Feature content information disclosure server. A content use support method executed by a content information publishing server that publishes information including a license for use of content,
A process of inputting information of a content registrant and registering it in a recording means for recording information about the content;
Inputting the attribute information of the content including the license and registering it in the recording means;
Calculating the feature amount of the content and registering it for the recording means;
A process of searching for content using at least one of information of a content registrant, attribute information, and feature amount with reference to information recorded in the recording means;
Comprising the step of displaying the information recorded in the recording means or the search result,
A characteristic content support method. The content usage support method according to claim 5,
In the process of registering the attribute information, at least one of author display, secondary work prohibition, non-commercial use, secondary work same condition permission, and profit reduction is used as a license for the content. That one permission can be registered,
A characteristic content support method. The content usage support method according to claim 5 or 6,
In the process of calculating the feature value, as a process of calculating the feature value of the content, a process of calculating a hash value, a process of embedding a digital watermark, and audio content information automatically detect music from the audio information. To execute at least one of the processes,
A characteristic content support method. The content usage support method according to claim 7,
In the process of automatically detecting music, detecting music using the fact that the peak of the frequency spectrum of audio information is stably maintained in the frequency direction,
A characteristic content support method.   A content use support program for causing a computer to execute processing used to realize the content use support method according to claim 5.   A recording medium recording a content use support program for causing a computer to execute processing used to realize the content use support method according to claim 5.

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