CN101086754A - Mobile image digital copyright secure processing system based on digital watermark technology - Google Patents
Mobile image digital copyright secure processing system based on digital watermark technology Download PDFInfo
- Publication number
- CN101086754A CN101086754A CNA2006100873484A CN200610087348A CN101086754A CN 101086754 A CN101086754 A CN 101086754A CN A2006100873484 A CNA2006100873484 A CN A2006100873484A CN 200610087348 A CN200610087348 A CN 200610087348A CN 101086754 A CN101086754 A CN 101086754A
- Authority
- CN
- China
- Prior art keywords
- information
- digital
- image
- drm
- authority
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a digital copyright management safety processing system on a moving terminal. It demands the packing and undoing using digital watermark at the server end and customer end. Compared with existing displacement image digital copyright processing system, it has the following advantages: It can identify whether the user has the legitimate right. It can track the first right violator after the right violation. It has copyright ownership identification ability. It adds completeness check of the displacement image right to prevent the right information being changed in the Combined delivery method defined in OMA DRM 1.0. It intensifies the protective mechanism of the displacement image copyright. It lowered the complexity of the computing of the moving image embedded with watermark to resist the damage to the compressed code and with bigger effective loading water mark.
Description
Technical field
The present invention relates to DRM (digital copyright management) safe processing system on a kind of portable terminal, particularly a kind of on DRM 1.0 standard base that compatible OMA (Open Mobile Alliance) formulates, the Applied Digital digital watermark strengthens the digital publishing rights disposal system of mobile image digitization copyright safety.
Technical background
The purpose of digital copyright management is the entitlement of protection copyright owner to its digital product, and digital product is used legally.Fast development along with the mobile digital business; copyright protection to the mobile digital image media; to guarantee the legal propagation of digital image content at mobile Internet, protect the legitimate interests of mobile picture material provider, become the key factor of the global mobile graphic service development of restriction.
The domestic and international at present image digitization copyright disposal system at mobile device is generally based on OMA DRM1.0 standard.These move image digitization copyright disposal system, carried out having added copyright information or also will encrypt in the issuing process of picture material.Even so, picture material just places under deciphering people's the control fully in case untied, and still has two big defectives: the one, if dispute over copyright, can't check out who is the legal real ownership person of copyright of digital content with technological means; The 2nd, the digital publishing rights content is appearring by bootlegging, when shifting, and can't investigate out with technological means is who has leaked the digital content that is protected on earth.Therefore, the digital copyright protecting of these systems lacks the operability of law aspect.
Summary of the invention
The objective of the invention is to: the mobile picture material of carrying out digital copyright protecting at needs; provide a kind of and OMA DRM 1.0 operating suchs; existing digital copyright protecting ability can be provided, the digital publishing rights disposal system of copyright tracking and definition of ownership ability is arranged again.In addition, native system has also increased the integrity checking function to mobile image copyright authority.
The technical solution that realizes purpose of the present invention is: a kind of mobile image digitization copyright safety disposal system based on digital watermark technology, and its typical application environment is by form (as Fig. 1) with the lower part:
1) supplier: have the digital rights of mobile picture material, the image digitization media file that the copyright owner makes is encoded, form the image media formatted file that DRM software is supported.
2) publisher: the issue passage that mobile image media is provided.The content sources of distribution is in supplier's image media and image copyright metadata.Utilize digital watermark technology that picture material is handled, and
Form the protected media file with information package such as corresponding copyright, leave on the distribution apparatus (server).
3) consumer: by the client-side program in the mobile device, carry out obtaining the image media content alternately with publisher's server, and the expense of payout figure licence.Digital license is used for illustrating Terms of Use that the consumer reaches according to transaction and to the service condition of content.The approach that client obtains the mobile picture material that is subjected to digital watermarking and digital publishing rights integrated protection has multiple, for example from by WAP, by MMS or by CAI e etc.
4) settlement center: be responsible for to handle the financial transaction that the mobile image media digital license of issue is given the consumer, pay copy fee, pay the issue expense to the publisher to supplier, and for each moves the consumption situation that the image consumer registers digital license.
Mobile image digitization copyright safety disposal system of the present invention requires all to use the method for digital watermarking to pack or unpack in server end and client.If server end does not use the digital watermark treatment method among the present invention to carry out packing data; package information only comprises the content of the digital copyright protecting of common OMA DRM 1.0; and client has been used the digital watermark treatment method among the present invention, and client also can correctly unpack and use this content.
The framework of mobile image digitization copyright safety disposal system of the present invention is seen accompanying drawing 2, system server terminal generates the DRM packet by DRM permission generation module after utilizing digital watermark technology that everyone information of mobile picture material, authority information, authority and authority grantor information are added the digital watermarking operation; In client, system carries out the authority integrity checking and carries out the picture copyright control extract everyone information of DRM authority information summary, authority and authority grantor information from digital watermarking after.In addition, system server terminal has the interface with the charging payment system.System server terminal adds digital watermarking in the mobile value-added service in image content information, system client verifies that the process of DRM authority integrality and extraction copyright holder's information and copyright grantor information is a core content of the present invention.
Mobile image digitization copyright safety disposal system of the present invention, server end adds digital watermarking in image content information processing procedure is (accompanying drawing 3):
1) server end step 1: the user is by client browsing mode and server interaction, and customization is to the ways of distribution and the rights of using (shown in the arrow 1) of picture;
2) server end step 2: the DRM authority generator program of server end has generated DRM authority information (shown in the arrow 2) according to ways of distribution in the above-mentioned steps and rights of using;
3) server end step 3: server end is sent into digital watermarking generation module (shown in the arrow 3) to original image information, DRM authority information, copyright holder and authority grantor's information;
4) server end step 4: the digital watermarking generation module of server end is responsible for having generated the image (shown in the arrow 4) that comprises digital watermarking in the digital watermarking of DRM authority information, copyright holder and authority grantor's information adding original image;
5) server end step 5: the DRM processing module of server end is responsible for the image of band digital watermark information and the packing of DRM authority information are generated the DRM packet that comprises digital watermark information at the ForwardLock ways of distribution; Generate the DRM packet that comprises digital watermark information and authority information at Combined Delivery ways of distribution and DRM; Generation comprises the packet of digital watermark information and two packets of DRM authority information packet (shown in the arrow 5,6) of encryption at Separate Delivery ways of distribution.
Mobile image digitization copyright safety disposal system of the present invention, client are extracted digital watermark information and carried out the process that the DRM authority handles is (accompanying drawing 4):
1) client step 1: client is sent into the DRM processing module to the DRM packet that comprises authority information, copyright holder and authority grantor information and is handled, and therefrom parses DRM authority information and the image data (shown in the arrow 1) that comprises digital watermark information;
2) client step 2: the DRM processing module is parsed the DRM authority information, is comprised the image data (shown in the arrow 2) of digital watermark information by the above-mentioned image data that comprises digital watermark information;
3) client step 3: the above-mentioned image data that comprises digital watermark information is handled by the digital watermarking extraction module, generates everyone information of DRM authority information summary 1, copyright grantor and authority.
Correspondingly, the described DRM authority information of client step 2 is carried out digital digest computing (MD5 algorithm), generate DRM authority information summary 2 (shown in the arrows 3,4);
4) client step 4: above-mentioned DRM authority information summary 1, above-mentioned DRM authority information summary 2 are compared (shown in the arrow 5): if the two unanimity illustrates that then the DRM authority information is complete (shown in the arrow 6,7).
5) client step 5: client verifies further whether above-mentioned copyright grantor's information is consistent with equipment (as handheld terminal) identity, can transfer to the control of authority module as unanimity and handle operations such as the browsing of picture, forwardings according to above-mentioned authority information; Otherwise refusal provides corresponding service (shown in the arrow 8) for the user.
Mobile image digitization copyright safety disposal system of the present invention has guaranteed protection to mobile image digitization copyright by the authority disposal route with OMA DRM 1.0 conformances to standard; By digital watermark treatment method, guaranteed the validity that copyright is followed the trail of and defined in server end and client.
Description of drawings
The composition of the typical case of Fig. 1 system applied environment
Fig. 2 system server terminal and client framework
Fig. 3 system server terminal generates the process of digital watermarking
Fig. 4 system client extracts digital watermarking and cooperates the process of processing with DRM control of authority module
Fig. 5 Forward Lock ways of distribution server end generates the process of digital watermarking
Fig. 6 Forward Lock ways of distribution client is extracted the processing procedure of digital watermarking
The processing procedure of Fig. 7 digital watermarking generation module
Fig. 8 Forwardlock mode watermark sequence structure
Fig. 9 Combined Delivery and Separate Delivery mode watermark sequence structure
The processing procedure of Figure 10 water mark embedding device module
The processing procedure of Figure 11 digital watermarking extraction module
The processing procedure of Figure 12 digital watermarking detector module
Embodiment
Realize that technical solution of the present invention is: a kind of mobile image digitization copyright safety disposal system based on digital watermark technology comprises following main contents:
1) treatment scheme of server end and client
At three kinds of modes of the distribute digital content of definition among the OMA DRM 1.0, the present invention realizes digital watermark processing with following technical scheme respectively:
(1) the digital watermark processing mode of ForwardLock ways of distribution:
In the image content of the Forward Lock ways of distribution that OMA DRM 1.0 defines, server end adds the process following (Fig. 5) of digital watermark information:
1. the digital watermarking generation module is put into copyright holder and authority grantor's information the digital watermarking (shown in the arrow 1) of image;
2. the DRM processing module is carried out the DRM packets of information (shown in the arrow 3,4) that DRM handles generation ForwardLock mode to the image that comprises digital watermarking then;
The process that client process comprises digital watermark information following (Fig. 6):
1. the DRM processing module is taken out (shown in the arrow 2) to the image information that comprises digital watermarking from the DRM packets of information, and this pictorial information just can be play;
2. in needs, the digital watermarking extraction module takes out the watermark information in the picture again, obtains copyright holder's information and authority grantor's information (shown in the arrow 4).
3. further whether the above-mentioned copyright grantor's information of checking is consistent with equipment (as handheld terminal) identity for client, can transfer to the control of authority module as unanimity and handle operations such as the browsing of picture, forwardings; Otherwise refusal provides corresponding service (shown in the arrow 5,6) for the user.
Picture has following attribute:
1., the MIME type that comprises the DRM packets of information of picture is application/vnd.oma.drm.message.
2., the information that adds copyright holder and authority grantor in the watermark.
3., when using content, needn't extract the information of digital watermarking.
4., the HTTP header or the email MIME header information of DRM packets of information is identical with the OMA standard definition, for example:
Content-Type:application/vnd.oma.drm.message；boundary＝PUTJTBYRBYTYBV
Content-Location:drmimage.dm
5., the DRM endomorph is also identical with OMADRM 1.0 definition, for example (bracket and italic are note, the content of " X " expression DRM file):
--PUTJTBYRBYTYBV (initial boundary symbol)
Content-Type:image/jpeg (format of content is as jpeg)
Content-Transfer-Encoding:binary (transfer encoding form)
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
--PUTJTBYRBYTYBV--(border terminating symbol)
The present invention is in above-mentioned DRM endomorph (picture), and the digital watermarking of adding comprises copyright holder and authority grantor's information, and the information content is exemplified below (bracket and italic are note, the content of " X " expression DRM file):
(this paper uses Backus-Naur Form (BNF) meta-language (Backus normal form) to express the content of digital watermarking)
WaterMark＝ “--“
Reserved character;
Copyright holder's ID
Authority grantor's ID
"--": (the one, initial expression symbol is thought to comprise the watermark of specified content among the present invention by system with the digital watermarking of this sign-on)
Wherein:
Reserved character: 256bit;
Copyright holder's ID:48bit copyright holder's id information;
Authority grantor's ID:64bit authority grantor's cell-phone number or id information.
(2) the digital watermark processing mode of Combined Delivery ways of distribution:
At the picture of the Combined Delivery ways of distribution of OMA DRM 1.0 definition, the digital watermarking that server end is put into image to DRM authority body, copyright holder and authority grantor's information, process following (accompanying drawing 3):
1. by DRM authority generation module, generated DRM copyright information (shown in the arrow 1,2);
2. digital watermarking mould generation piece is responsible for having generated the image (shown in the arrow 3,4) that comprises digital watermarking in the digital watermarking of DRM authority information, copyright holder and authority grantor's information adding original image;
3. the image with digital watermarking is admitted to DRM processing module (shown in the arrow 5), by the DRM processing module view data is carried out DRM and handles, and is packaged into DRM packet (shown in the arrow 6).
Client is responsible for the information in the digital watermarking is extracted, and handles process following (accompanying drawing 4) in conjunction with OMA DRM standard:
1. the DRM packet that comprises authority information, copyright holder and authority grantor information is sent into the DRM processing module and is handled, and therefrom parses the DRM authority information and comprises the image data (shown in the arrow 1) of digital watermark information;
2. the DRM processing module is parsed the DRM authority information, is comprised the image data (shown in the arrow 2) of digital watermark information by the above-mentioned image data that comprises digital watermark information;
3. client step 3: the above-mentioned image data that comprises digital watermark information is handled by the digital watermarking extraction module, generates DRM authority information summary 1, copyright holder and authority grantor information.Correspondingly, the described DRM authority information of client step 2 is carried out digital digest computing (MD5 algorithm), generate DRM authority information summary 2 (shown in the arrows 3,4);
4. client step 4: above-mentioned DRM authority information summary 1, above-mentioned DRM authority information summary 2 are compared (shown in the arrow 5): if the two unanimity, illustrate that then the DRM authority information is complete, can transfer to the control of authority module and handle picture browsed, transmits operation; Otherwise illustrate that the DRM authority information is incomplete (shown in the arrow 6,7).
5. further whether the above-mentioned copyright grantor's information of checking is consistent with equipment (as handheld terminal) identity for client, can transfer to the control of authority module as unanimity and handle operations such as the browsing of picture, forwardings according to above-mentioned authority information; Otherwise refusal provides corresponding service (shown in the arrow 8) for the user.
In the image content of the Combined Delivery ways of distribution that OMA DRM 1.0 defines, behind the adding digital watermark information, picture has following attribute:
1. the MIME type of picture keeps application/vnd.oma.drm.message.
2. add watermark in the content of picture, watermark content comprises the information of authority information, copyright holder and the authority grantor of OMD DRM ODREL form in the text.
3. the HTTP header of DRM packets of information or email MIME header information are identical with the OMA standard definition, for example:
Content-Type:application/vnd.oma.drm.message；boundary＝PUTJTBYRBY
TYBV
Content-Location:drmimage.dm
4., the design's DRM endomorph not only comprised the authority information of OMA DRM1.0 definition, also the authority information that OMA DRM1.0 is defined has been placed in the digital watermarking.For example,
DRM endomorph information is (bracket and italic are note):
--PUTJTBYRBYTYBV
Content-Type:?application/vnd.oma.drm.rights+xml
Content-Transfer-Encoding:binary
<o-ex:rights
xmlns:o-ex＝″http://odrl.net/1.1/ODRL-EX″
xmlns:o-dd＝″http://odrl.net/1.1/ODRL-DD″
xmlns:ds＝″http://www.w3.org/2000/09/xmldsig#/″
>
... (OMA DRM rights description. is an OMA authority body)
</o-ex:rights>
--PUTJTBYRBYTYBV
Content-Type:image/jpeg
Content-ID:<cid:mid.mid4D546864000000060000@lvxianghui.com>
Content-Transfer-Encoding:binary
(following is the DRM file content)
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
--PUTJTBYRBYTYBV-
The following digital watermarking content that designs for the present invention:
(this paper uses Backus-Naur Form (BNF) meta-language (Backus normal form) to express the content of digital watermarking)
Watermark ＝ “--“
The digital digest value of DRM authority
Copyright holder's ID
Authority grantor's ID
"--": (--is initial expression symbol, thought to comprise the watermark of specified content among the present invention by system with the digital watermarking of this sign-on)
Wherein:
The digital digest value of DRM authority: 256bit;
Copyright holder's ID:48bit copyright holder's id information;
Authority grantor's ID:64bit copyright grantor's cell-phone number or id information;
(3) the digital watermark processing mode of Separate Delivery ways of distribution:
Under the Separate Delivery ways of distribution of OMA DRM 1.0 definition, though being independent of endomorph, the authority body distributes to get off, the authority body can not be placed in the digital watermarking.
At Separate Delivery ways of distribution, digital watermarking of the present invention is information and copyright holder's the information and the digital digest value of authority that only adds the authority grantor in the picture material body.Below the digital watermarking content that designs for the present invention is given an example:
(this paper uses Backus-0Naur Form (BNF) meta-language (Backus normal form) to express the content of digital watermarking)
Water?Printer＝ “++“
The digital digest value of DRM authority
Copyright holder's ID
Copyright grantor's ID;
" ++ ": (++ be initial expression symbol, thought to comprise the watermark of specified content among the present invention with the digital watermarking of this sign-on by system, and do not comprise the DRM authority information)
Wherein:
The digital digest value of DRM authority: 256bit;
Copyright holder's ID:48bit copyright holder's id information;
Authority grantor's ID:64bit authority grantor's cell-phone number or id information;
2) realization of infringement judgement
Under the mobile image digitization copyright safety disposal system based on digital watermark technology of the present invention, situation such as be subjected to bootlegging at shielded image, alter, can judge first infringer by the infringement determination module of system, protection copyright owner's interests.
The infringement determination module flow process of system, obtaining image information in the digital watermarking and cooperate the process of processing with the DRM handling procedure with system client is consistent (see figure 4).If the employed image authority information of user is imperfect, the authority grantor's information that then can extract from watermark judges who is the first liability for tort people.
3) generation of mobile image digital watermark and extraction module disposal route
Fig. 7 has provided the processing procedure of digital watermarking generation module, and original image is various picture formats (as: png form, gif form, jpg forms).Wherein png and gif are harmless file layout, and jpg is the file layout of lossy compression method.
The information and the original image that are input as DRM authority information, copyright holder and authority grantor of watermark generation module.Watermark generation module is handled DRM authority information, copyright holder and authority grantor's information, obtain watermark sequence, Forwardlock mode watermark sequence structure is seen Fig. 8, and Combined Delivery and Separate Delivery mode watermark sequence structure are seen Fig. 9.Wherein Combined Delivery and SeparateDelivery mode watermark sequence constitution water India and China, 256bit is the digital digest value of DRM authority information before the watermark sequence, adopts the MD5 algorithm to realize.That uses digital digest can prevent that the DRM authority information in the DRM packet from being altered.
In order to guarantee that watermarking algorithm is applicable to the popular file layout that can't harm and diminish, watermark generation module is transformed into spatial domain with image file format, and to bit depth at the picture more than 8, it is transformed to the YCbCr space, with the input as the water mark embedding device module of wherein Y component and above-mentioned watermark sequence, the processing procedure of water mark embedding device module is seen Figure 10.Watermarking algorithm should be able to be resisted the lossy compression method coding, and the useful load watermark of algorithm is bigger, and complexity should be lower simultaneously.Comprehensive these requirements, the water mark embedding device module is chosen in the intermediate frequency coefficient in piece DCT territory the method embed watermark based on jitter quantisation, because the intermediate frequency embed watermark in the DCT territory can be resisted lossy compression method, and can obtain better capacity, lower complexity and fidelity preferably based on the method for jitter quantisation.In embedding the device module, at first the Y component is carried out the piece dct transform, select the intermediate-frequency section of conversion coefficient then, adopt the mode of jitter modulation to carry out the watermark embedding in the coefficient frequently in these, coefficient with embed watermark carries out idct transform then, has just obtained containing the Y component of watermark.
The Y component of watermark be will contain at last and the Cb component of embed watermark and the synthetic watermarking images that contains that obtains the spatial domain of Cr component will be, and will contain form (as png and the gif form) output that watermarking images is converted to needs, generally speaking, be converted into the form the same with original image.
Figure 11 has provided the processing procedure of digital watermarking extraction module.Image to be detected is the picture of mobile telephone form (png form, gif form, jpg form) of various forms.The same when generating with watermark, at first file layout is transformed into spatial domain, bit depth at the picture more than 8, is transformed to the YCbCr space with it, with the input of wherein Y component as the watermark detector module.
The watermark detector module is the inverse operation of water mark embedding device module.Figure 12 has provided the block diagram of watermark detector module.The watermark detector module is at first carried out the piece dct transform to the Y component, selects the intermediate-frequency section of conversion coefficient then, frequently adopts in the coefficient mode of jitter modulation to carry out watermark detection in these and has just obtained watermark sequence.
Mobile image digital copyright secure processing system based on digital watermark technology of the present invention is only compared based on the image digitization copyright treatment system of OMA DRM 1.0 standards with existing, and its remarkable advantage is:
1) native system has whether the people who identifies the use content is the ability of validated user.
2) native system has after abuse takes place, and follows the trail of first infringement Man's Power.
3) native system has the ability that the copyright owner identifies.
4) native system has increased mobile figure in the Combined delivery mode of OMADRM 1.0 definition The integrity checking of picture authority prevents that authority information is modified.
5) native system has strengthened Forwardlock and the Combined Delivery of OMA DRM 1.0 definition The protection mechanism of moving images copyright in the mode.
6) native system realizes that the algorithm complex of moving images watermark embedding is lower, can resist lossy compression method and compile Code, and the payload watermark of algorithm is bigger.
Claims (6)
1, mobile image digitization copyright safety disposal system based on digital watermark technology is characterized in that: native system adds digital watermarking on the basis of OMA DRM 1.0, record copyright management information and right to use grantor and image owner's information.In 3 kinds of distribution of contents modes of OMA DRM1.0 definition, increase different digital rights information respectively.
2, according to mobile image digitization copyright protection of right 1 described enhancing and infringement is followed the trail of and image entitlement is identified method; it is characterized in that: in the image content of the Forward Lock ways of distribution that OMA DRM1.0 defines, in digital watermark information, add copyright holder and authority grantor's information.
3, according to mobile image digitization copyright protection of right 1 described enhancing and infringement is followed the trail of and image entitlement is identified method; it is characterized in that: in the content of the Combined Delivery ways of distribution that OMA DRM1.0 defines, authority information, copyright holder and the authority grantor's of identical OMA DRM ODREL form information in adding and the text in digital watermark information.
4, according to mobile image digitization copyright protection of right 1 described enhancing and infringement is followed the trail of and image entitlement is identified method; it is characterized in that: in the content of the Separate Delivery ways of distribution that OMA DRM1.0 defines; add digital watermark information, contain copyright grantor's information, copyright holder's information and DRM authority information in this digital watermarking.
5, according to the method for the mobile image digitization copyright protection of right 1 described enhancing and infringement tracking and the evaluation of image entitlement, it is characterized in that: for the determination flow of mobile image copyright infringement.
6, according to the method for the mobile image digitization copyright protection of right 1 described enhancing and infringement tracking and the evaluation of image entitlement, it is characterized in that: for the generation and the extracting method of mobile image digital watermark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100873484A CN101086754A (en) | 2006-06-09 | 2006-06-09 | Mobile image digital copyright secure processing system based on digital watermark technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100873484A CN101086754A (en) | 2006-06-09 | 2006-06-09 | Mobile image digital copyright secure processing system based on digital watermark technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101086754A true CN101086754A (en) | 2007-12-12 |
Family
ID=38937708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100873484A Pending CN101086754A (en) | 2006-06-09 | 2006-06-09 | Mobile image digital copyright secure processing system based on digital watermark technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101086754A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145253A1 (en) * | 2009-10-23 | 2010-12-23 | 中兴通讯股份有限公司 | Method and system for transmitting compressed rights |
| CN102314570A (en) * | 2011-09-22 | 2012-01-11 | 中兴通讯股份有限公司 | Method and system for embedding and verifying digital watermark |
| CN105405092A (en) * | 2015-11-26 | 2016-03-16 | 熊桂荣 | Secure digital image propagation method based on reversible watermark and mosaic technology |
| CN108737895A (en) * | 2018-06-06 | 2018-11-02 | 北京酷我科技有限公司 | A kind of method that static images synthesize anti-fake video |
| CN108777814A (en) * | 2018-06-06 | 2018-11-09 | 北京酷我科技有限公司 | A kind of method of static images synthetic video |
| CN109858207A (en) * | 2019-01-31 | 2019-06-07 | 南京麦朵信息技术有限公司 | A kind of method of the multimedia copyright tracking of unauthorized distribution |
| CN110334487A (en) * | 2019-06-12 | 2019-10-15 | 中国舰船研究设计中心 | A kind of virtual machine image copy-right protection method based on digital watermarking |
-
2006
- 2006-06-09 CN CNA2006100873484A patent/CN101086754A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145253A1 (en) * | 2009-10-23 | 2010-12-23 | 中兴通讯股份有限公司 | Method and system for transmitting compressed rights |
| US8819290B2 (en) | 2009-10-23 | 2014-08-26 | Zte Corporation | Method and system for transmitting compressed rights |
| CN102314570A (en) * | 2011-09-22 | 2012-01-11 | 中兴通讯股份有限公司 | Method and system for embedding and verifying digital watermark |
| CN105405092A (en) * | 2015-11-26 | 2016-03-16 | 熊桂荣 | Secure digital image propagation method based on reversible watermark and mosaic technology |
| CN108737895A (en) * | 2018-06-06 | 2018-11-02 | 北京酷我科技有限公司 | A kind of method that static images synthesize anti-fake video |
| CN108777814A (en) * | 2018-06-06 | 2018-11-09 | 北京酷我科技有限公司 | A kind of method of static images synthetic video |
| CN109858207A (en) * | 2019-01-31 | 2019-06-07 | 南京麦朵信息技术有限公司 | A kind of method of the multimedia copyright tracking of unauthorized distribution |
| CN109858207B (en) * | 2019-01-31 | 2023-03-31 | 南京麦朵信息技术有限公司 | Unauthorized distribution multimedia copyright tracking method |
| CN110334487A (en) * | 2019-06-12 | 2019-10-15 | 中国舰船研究设计中心 | A kind of virtual machine image copy-right protection method based on digital watermarking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101043319B (en) | Digital content protective system and method | |
| CN1653463B (en) | Method and apparatus for processing usage rights expressions | |
| CN1327373C (en) | Method of protecting and managing digital contents and system for using thereof | |
| CN103942470B (en) | A kind of electronic audiovisual product copyright managing method with function of tracing to the source | |
| CN101086754A (en) | Mobile image digital copyright secure processing system based on digital watermark technology | |
| CN103136459B (en) | A kind of copyright method and system of encrypted digital content | |
| Lee et al. | A DRM framework for distributing digital contents through the Internet | |
| CN104966000A (en) | Multimedia copyright protection method based on security engine | |
| JP4987978B2 (en) | Digital content supply system using digital fingerprinting | |
| CN101262593A (en) | Enhanced OMA DRM2.0 video digital copyright management system based on mixed watermark mechanism | |
| US9280672B2 (en) | Method for secure production printing | |
| CN114363068A (en) | Image-text publishing method and device, electronic equipment and storage medium | |
| Seki et al. | A proposal on open DRM system coping with both benefits of rights-holders and users | |
| WO2011043171A1 (en) | Copyrighted work redistribution promotion system | |
| Hussin et al. | E-pass using drm in symbian v8 os and trustzone: Securing vital data on mobile devices | |
| Xu et al. | Verifiable image revision from chameleon hashes | |
| CN111324869A (en) | Movie copyright protection method based on block chain | |
| US20040093310A1 (en) | Transaction system and method | |
| CN106940760A (en) | A kind of mobile digital copyright protection system | |
| Chen et al. | An Approach of Digital Rights Management for E-Museum with Enforce Context Constraints in RBAC Environments | |
| Prevelakis et al. | Controlling the dissemination of electronic documents | |
| Jonker | Security of Digital Rights Management systems | |
| Moskowitz | Introduction—Digital Rights Management | |
| WO2006030294A2 (en) | Use of graphic and/or audio license with drm systems | |
| Tian et al. | Design and Implementation of Digital Content Resource Registration Service System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |