CN103390121A - Digital work ownership authentication method and digital work ownership authentication system - Google Patents
Digital work ownership authentication method and digital work ownership authentication system Download PDFInfo
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- CN103390121A CN103390121A CN2012101445709A CN201210144570A CN103390121A CN 103390121 A CN103390121 A CN 103390121A CN 2012101445709 A CN2012101445709 A CN 2012101445709A CN 201210144570 A CN201210144570 A CN 201210144570A CN 103390121 A CN103390121 A CN 103390121A
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Abstract
The invention discloses a digital work ownership authentication method and a digital work ownership authentication system. The digital work ownership authentication method comprises the following steps: extracting a media fingerprint of a digital work to be authenticated; matching the extracted media fingerprint of the digital work to be authenticated withand the media fingerprint in a media fingerprint database; if the media fingerprint matched with the media fingerprint of the digital work to be authenticated is found from the media fingerprint database, obtaining a first index of the matched media fingerprint in the media fingerprint database; and analyzing an ownership certificate of a registered digital work in an ownership certificate library, so as to obtain ownership information corresponding to the first index, wherein the ownership certificate of the registered digital work comprises the ownership information of the registered digital work and the index of the media fingerprint of the registered digital work in the media fingerprint database. With the adoption of the digital work ownership authentication method and the digital work ownership authentication system, the ownership authentication of the digital work to be authenticated is realized, a basis is provided for ownership authentication, and anthe accurate ownership authentication result is obtained.
Description
Technical field
The embodiment of the present invention relates to the copyright authentication techniques, relates in particular to a kind of copyright ownership authentication method and system.
Background technology
The development of network technology and multimedia technology has promoted creation and the circulation of copyright, and the while has also proposed challenge to copyright protection and the supervision of copyright.There are at any time a large amount of copyrights propagating on Internet, as digital photo, CRBT multimedia message, network game animation, (blog) online literature, video, three-dimensional animation etc., and a large amount of government, business transaction website and copyright sharing websites take copyright as commodity have been emerged in large numbers.But because copyright exists transreplication, easy characteristics such as modifications, copyright spread and communication process in, the affiliated unclear phenomenon of copyright often appears, consequent dispute over copyright and invasion phenomenon emerge in an endless stream.How effectively the copyright ownership to be authenticated fast is the basis that the upper magnanimity copyright of Internet is carried out copyright protection and supervision.
Digital copyright management (Digital Rights Management; be called for short DRM) be that digital times is carried out the common name of technology and the method for copyright management and protection to works, namely become a focus of field of media and even entire society's concern since the turn of the century.Existing various DRM technical scheme or product attempt to construct the closed system of a safety, be safety curtain of content protecting structure, and sealing DRM system will derive the problems such as technical monopoly.In addition, the circulate of content is the fundamental characteristics that the Digital Media industry develops in a healthy way with convenient the use, and closed system is with content circle reasonable right to use of limited subscriber part in cage.It is eye to be confined in the scopes such as content protecting and works right that existing DRM technology is difficult to successful basic reason; shortage is assert the solution of problem fast to " simulation leak " problem and copyright; wherein; " simulation leak " long-term existence and in future, will forever existing; the quick identification of copyright is the necessary condition of administering digital works under digitizing, networking condition, just as the pacing items that the citizenship proof is modern society's management.
Two technology paths of tradition DRM are: cryptography and digital watermarking.The former provides protection with encryption, authorization to copyright, and the latter embeds by watermark and detects the ownership that identifies, assert copyright.On the one hand because copyright is easy to copy, propagate, the copyright of encryption is in case deciphering namely loses protection, occurs that very easily copyright cracks version and spreads unchecked in a large number phenomenon in network; The works of encrypting can't be deciphered automatically after having spent the protection period; Encrypt simultaneously the reasonable use (fair use) that has also limited copyright, such as the purpose that is used for the non-commercials such as teaching.On the other hand, although watermark embeds and can not perceivedly discover, copyright is caused to a certain degree distortion; Watermark is difficult to all normal media processings operation robusts, may be operated by good will or malicious attack destroys and wipes.In addition, encrypt and add watermark and all can't tackle the online infringement problem that " simulation leak " brings." simulation leak " is a large amount of to be existed and can't fundamentally stop; the just whole life cycle of copyright of existing DRM technical protection a bit of; at creation of works, copyright registration, deliver, exchange, there are a large amount of chances of revealing in the link such as consumption; as long as works are appreciated by the people and use; need to enter from digital space the virtual space of human perception, also just have the possibility that is replicated, reveals.A typical case of " simulation leak " is: the user utilizes digital equipment to gather the copyrights such as text, audio frequency and video from computer screen or other consumption terminal equipment, the copyright that does not also contain watermark of neither encrypting that then will acquire in unwarranted situation is uploaded to network, thereby cause on internet the infringement works to overflow, copyright owner's right is caused huge infringement.Copyright ownership of the prior art is difficult to authentication, lacks ownership authentication foundation.
Summary of the invention
The invention provides a kind of copyright ownership Verification System and method, the defect that is difficult to authenticate in order to solve copyright ownership of the prior art, for the ownership identification provides foundation, to obtain ownership authentication result accurately.
The embodiment of the present invention provides a kind of copyright ownership authentication method, comprising:
Copyright to be certified is extracted media fingerprints;
With the media fingerprints of the copyright to be certified that extracts and the coupling of the media fingerprints in the media fingerprints storehouse,, if find the media fingerprints with the media fingerprints of the described copyright to be certified that extracts coupling in described media fingerprints storehouse, obtain first index of media fingerprints in described media fingerprints storehouse of described coupling;
Ownership certificate to registered copyright in the ownership certificate storehouse is resolved, obtain the ownership information corresponding with described the first index, the ownership certificate of described registered copyright comprises the ownership information of described registered copyright and the index of media fingerprints in described media fingerprints storehouse of described registered copyright.
Preferred as technique scheme, the described described media fingerprints that will extract mates and specifically comprises with the media fingerprints in the media fingerprints storehouse:
The media fingerprints of the described copyright to be certified that extracts of judgement whether with described media fingerprints storehouse in a media fingerprints identical,, if identical, determine the media fingerprints that the described media fingerprints in described media fingerprints storehouse mates for the media fingerprints with the described copyright to be certified that extracts; Perhaps
The media fingerprints of the described copyright to be certified that extracts of judgement whether with described media fingerprints storehouse in the similarity of a media fingerprints in the predetermined threshold value scope, if determine the media fingerprints that the described media fingerprints in described media fingerprints storehouse mates for the media fingerprints with the described copyright to be certified that extracts.
Preferred as technique scheme also comprises:
Copyright to be registered is extracted media fingerprints;
Add the media fingerprints of copyright to be registered to described media fingerprints storehouse, and obtain second index of media fingerprints in described media fingerprints storehouse of described copyright to be registered;
Ownership certificate according to the described copyright to be registered of ownership Information generation of described the second index and described copyright to be registered, add the ownership certificate of described copyright to be registered to described ownership certificate storehouse, to register described copyright to be registered.
Preferred as technique scheme also comprises:
When definite registered copyright is edited, delete the former media fingerprints of registered copyright in described media fingerprints storehouse;
Registered copyright after editor is extracted media fingerprints, add the media fingerprints of the registered copyright after editor to described media fingerprints storehouse, and obtain three index of media fingerprints in described media fingerprints storehouse of the registered copyright after editor;
, according to the ownership certificate of the registered copyright after the described editor of ownership Information generation of the registered copyright after described the 3rd index and editor, the ownership certificate of the registered copyright after described editor is replaced the ownership certificate of the described registered copyright in described ownership certificate storehouse.
Preferred as technique scheme, extract media fingerprints and specifically comprise:
Adopt hash algorithm to extract media fingerprints; Perhaps, adopt feature extraction algorithm to extract media fingerprints.
The present invention also provides a kind of copyright ownership Verification System, comprising:
Matchmaker's line extraction apparatus, be used for copyright to be certified is extracted media fingerprints;
Matchmaker's line contrast device, be used for the media fingerprints of the copyright to be certified that will extract and the media fingerprints coupling in media fingerprints storehouse,, if find the media fingerprints with the media fingerprints of the described copyright to be certified that extracts coupling in described media fingerprints storehouse, obtain first index of media fingerprints in described media fingerprints storehouse of described coupling;
The ownership certificate resolver, be used for the ownership certificate of the registered copyright in ownership certificate storehouse is resolved, obtain the ownership information corresponding with described the first index, the ownership certificate of described registered copyright comprises the ownership information of described registered copyright and the index of media fingerprints in described media fingerprints storehouse of described registered copyright.
Preferred as technique scheme, described matchmaker's line comparative device specifically comprises:
The identity property comparing module, be used for judging whether the media fingerprints of the described copyright to be certified that extracts is identical with a media fingerprints in described media fingerprints storehouse,, if identical, determine the media fingerprints that the described media fingerprints in described media fingerprints storehouse mates for the media fingerprints with the described copyright to be certified that extracts;
The similarity comparing module, the media fingerprints that is used for the described copyright to be certified that judgement extracts whether with the similarity of the media fingerprints in described media fingerprints storehouse in the predetermined threshold value scope, if determine the media fingerprints that the described media fingerprints in described media fingerprints storehouse mates for the media fingerprints with the described copyright to be certified that extracts.
Preferred as technique scheme, described matchmaker's line extraction apparatus also is used for copyright to be registered is extracted media fingerprints;
Add the media fingerprints of copyright to be registered to described media fingerprints storehouse, and obtain second index of media fingerprints in described media fingerprints storehouse of described copyright to be registered;
Also comprise: the ownership certificate maker, be used for the ownership certificate according to the described copyright to be registered of ownership Information generation of described the second index and described copyright to be registered, add the ownership certificate of described copyright to be registered to described ownership certificate storehouse, to register described copyright to be registered.
Preferred as technique scheme, described matchmaker's line extraction apparatus also is used for deleting the former media fingerprints of registered copyright in described media fingerprints storehouse when definite registered copyright is edited;
Registered copyright after editor is extracted media fingerprints, add the media fingerprints of the registered copyright after editor to described media fingerprints storehouse, and obtain three index of media fingerprints in described media fingerprints storehouse of the registered copyright after editor;
Described system also comprises: the ownership certificate renovator, be used for the ownership certificate according to the registered copyright after the described editor of ownership Information generation of the registered copyright after described the 3rd index and editor, the ownership certificate of the registered copyright after described editor replaced the ownership certificate of the described registered copyright in described ownership certificate storehouse.
Preferred as technique scheme, described matchmaker's line extraction apparatus specifically comprises:
, based on matchmaker's line extraction module of hash algorithm, be used for adopting hash algorithm to extract media fingerprints;
, based on matchmaker's line extraction module of feature extraction algorithm, be used for adopting feature extraction algorithm to extract media fingerprints.
Copyright ownership authentication method provided by the invention and system, when copyright is carried out copyright authentication, extract from copyright to be certified can this copyright of unique identification media fingerprints, and the coupling of the media fingerprints in the media fingerprints that will extract and media fingerprints storehouse, if the media fingerprints of the media fingerprints that finds and extract coupling, obtain the index of media fingerprints in described media fingerprints storehouse of described coupling; Ownership certificate to registered copyright in the ownership certificate storehouse is resolved, and obtains the ownership information corresponding with index, realizes the ownership authentication to copyright to be certified,, for the ownership identification provides foundation, obtains ownership authentication result accurately.
Description of drawings
The schematic flow sheet of the copyright ownership authentication method that Fig. 1 provides for the embodiment of the present invention;
The schematic flow sheet of ownership certificate registration in the copyright ownership authentication method that Fig. 2 provides for the embodiment of the present invention;
The schematic flow sheet of ownership certificate editor in the ownership certificate registration of the copyright ownership authentication method that Fig. 3 provides for the embodiment of the present invention;
The structural representation of the copyright ownership Verification System that Fig. 4 provides for the embodiment of the present invention;
The structural representation of another copyright ownership Verification System that Fig. 5 provides for the embodiment of the present invention.
Embodiment
The schematic flow sheet of the copyright ownership authentication method that Fig. 1 provides for the embodiment of the present invention, in conjunction with shown in Figure 1, this kind copyright ownership authentication method comprises:
Step 001: copyright to be certified is extracted media fingerprints.
Particularly, media fingerprints (can be called for short matchmaker's line) technology, need not to add any auxiliary authentication information in the copyright content, but utilize the attribute of copyright itself to identify works.Be analogous to people's fingerprint, vocal print, image surface, DNA (deoxyribonucleic acid) (Deoxyribonucleic acid, DNA) or the biological characteristic such as iris, media fingerprints is the specific characteristic of the identity that can be different from other copyrights, reference numbers works extracted from copyright.Therefore can extract the sign of its specific characteristic as copyright from copyright.Media fingerprints generally possess two essential characteristics: (1) robustness: copyright can be through distortion, but as long as the content of copyright is constant, media fingerprints is also constant; (2) property distinguished: the copyright that content is different, its media fingerprints are significantly different.In addition, because copyright is in large scale, from point of view of practicability, other performances that media fingerprints also should possess comprise: compactedness and low computational complexity.Compactedness refers to that the size of media fingerprints will be far smaller than the size of copyright itself, i.e. low spatial complexity, and the storage space of media fingerprints and transmission bandwidth expense are little.Low computational complexity, be also that the time complexity of media fingerprints extraction algorithm is low, supports the real-time authentication to the copyright ownership.Medium type according to copyright, media fingerprints (mediaprint) roughly can be divided into text fingerprints (textprint), audio-frequency fingerprint (audioprint, abbreviation sound line), finger image (imageprint, be called for short the figure line) and video finger print (videoprint is called for short and looks line) four large classes.
Step 002: the media fingerprints coupling in the media fingerprints of the copyright to be certified that will extract and media fingerprints storehouse,, if find the media fingerprints with the media fingerprints of the copyright to be certified that extracts coupling in the media fingerprints storehouse, obtain first index of media fingerprints in the media fingerprints storehouse of coupling.
Media fingerprints is stored in the media fingerprints storehouse and searching media fingerprints in the verification process to copyright be convenient in related corresponding index., if find the media fingerprints that is complementary, show that this copyright to be certified has corresponding ownership information; , if do not find the media fingerprints of coupling, show that this copyright to be certified does not have corresponding ownership information.
Step 003: the ownership certificate to registered copyright in the ownership certificate storehouse is resolved, obtain the ownership information corresponding with the first index, the ownership certificate of registered copyright comprises the ownership information of registered copyright and the index of media fingerprints in the media fingerprints storehouse of registered copyright.
Wherein, the ownership information of copyright includes but not limited to the arbitrary information of subordinate or its combination in any: matchmaker's line extracting method identification information, works descriptor, obligee's descriptor, copyright registration time, ownership are advocated the time limit etc.The ownership information of the ownership certificate index in the media fingerprints storehouse and copyright by the media fingerprints of copyright is according to setting the form generation that encapsulates and sign electronically, and is stored in the ownership certificate storehouse.After ownership certificate is resolved, can obtain required ownership information.
For example, currently need to carry out ownership authentication to a copyright, at first extract the media fingerprints of this copyright, the media fingerprints that extracts and the media fingerprints in the media fingerprints storehouse are compared: if do not find the media fingerprints of coupling, this copyright does not have corresponding ownership certificate, does not namely carry out the registration of ownership information; If find the media fingerprints of coupling, obtain the index of corresponding media fingerprints in the media fingerprints storehouse, then resolve the ownership certificate storehouse,, until obtain the ownership information of the copyright corresponding with this index, complete the ownership authentication to copyright.
Copyright ownership authentication method provided by the invention, when copyright is carried out copyright authentication, can extract from copyright to be certified can this copyright of unique identification media fingerprints, and the coupling of the media fingerprints in the media fingerprints that will extract and media fingerprints storehouse, if the media fingerprints of the media fingerprints that finds and extract coupling, obtain the index of media fingerprints in the media fingerprints storehouse that mates; Ownership certificate to registered copyright in the ownership certificate storehouse is resolved, and obtains the ownership information corresponding with index, realizes the ownership authentication to copyright to be certified,, for the ownership identification provides foundation, obtains ownership authentication result accurately.
Further, the media fingerprints coupling can adopt and be equal to control methods or similar control methods, and accordingly, in the media fingerprints that will extract in the present embodiment and media fingerprints storehouse, the media fingerprints of registered copyright coupling specifically comprises:
The media fingerprints of the copyright to be certified that extracts of judgement whether with the media fingerprints storehouse in a media fingerprints identical,, if identical, determine the media fingerprints that this media fingerprints in the media fingerprints storehouse mates for the media fingerprints with the copyright to be certified that extracts;
Perhaps, the media fingerprints of the copyright to be certified that extracts of judgement whether with the media fingerprints storehouse in the similarity of a media fingerprints in the predetermined threshold value scope, if determine the media fingerprints that this media fingerprints in the media fingerprints storehouse mates for the media fingerprints with the copyright to be certified that extracts.
In being equal to control methods, need the media fingerprints of copyright to be certified and copyright through the ownership registration to be stored in the identical coupling of just calculating of media fingerprints in the media fingerprints storehouse, namely copyright to be certified has identical bit sequence with the copyright through the ownership registration.in similar control methods, how many predetermined threshold value scopes is made as, be that similarity reaches how much can regard as coupling, the technical characterstic that depends on matchmaker's line extracting method, for example: when the use of monitoring copyright, because in the copyright process of circulation, (compression of carrying out in order to save bandwidth as the legal authorization person of video work) or specific purpose (as the bootlegger in order to escape monitoring) have been carried out one or more conversion according to actual needs, the media fingerprints that extracts from copyright to be certified in this case may be incomplete same with the media fingerprints that the copyright of registering through ownership is stored in the media fingerprints storehouse, adopt above-mentioned similar control methods to carry out the ownership authentication of copyright.When a plurality of similar media fingerprints are arranged in the setting threshold scope, choose with the media fingerprints difference minimum of copyright to be certified, namely an immediate media fingerprints is as the ownership authentication foundation of copyright.
Further, the schematic flow sheet of ownership certificate registration in the copyright ownership authentication method that Fig. 2 provides for the embodiment of the present invention, in conjunction with shown in Figure 2, is specially:
Step 201: copyright to be registered is extracted media fingerprints;
Step 202: add the media fingerprints of copyright to be registered to the media fingerprints storehouse, and obtain second index of media fingerprints in the media fingerprints storehouse of copyright to be registered;
Step 203: the ownership certificate according to the ownership Information generation copyright to be registered of the second index and copyright to be registered, add the ownership certificate of copyright to be registered to the ownership certificate storehouse, to register copyright to be registered.
After step 203, copyright to be registered has also just become registered copyright,, has completed the registration to copyright that is.
Concrete:
Step 201 is specially, to copyright to be registered carry out content analysis obtain can these works of unique identification unique feature, thereby extract the media fingerprints of copyright to be registered.Step 203 is specially, and the second index in the media fingerprints storehouse that the media fingerprints of copyright to be registered is corresponding and the ownership information of copyright to be registered are packaged into certificate data according to setting form; The certificate data that is packaged into is signed electronically, form the ownership certificate of copyright to be registered., by certificate data is signed electronically, can guarantee media fingerprints and the ownership information truth, complete of copyright in ownership certificate.Wherein the ownership information of copyright includes but not limited to following arbitrary information or its combination in any: matchmaker's line extracting method identification information, works descriptor, obligee's descriptor, copyright registration time, ownership are advocated the time limit etc.Then,, if need to carry out the ownership authentication to certain copyright, can obtain accordingly according to the media fingerprints of certain copyright its index in the media fingerprints storehouse, further parsing obtains its ownership certificate and completes the ownership authentication that it is carried out.Wherein, matchmaker's line extraction step can carry out the extraction of media fingerprints to copyright in the controlled trusted context of works ownership people, thereby prevents from causing the stolen of copyright for authentication purpose.Ownership certificate generates and can sign electronically in the trusted context of independent copyright registration mechanism controls, thereby provides third-party, believable copyright ownership certificate for authentication.In the present embodiment, matchmaker's line extraction to copyright can be separate with the ownership certificate generation, and by network for example: internet carries out message exchange, the information that exchanges includes only the authentication-related information such as media fingerprints, ownership descriptor and ownership certificate of works, does not need to comprise works itself.
For example, the user issues a new copyright, such as the user delivers one piece of new daily record; Issue a new microblogging in " original " or " forwarding " mode.The media fingerprints of the text that need to adopt the media fingerprints technical point to get indescribably to comprise in this copyright and related picture, audio frequency and video, obtain a media fingerprints corresponding to this copyright, namely comprised the media fingerprints as all kinds media of its content item.Then inquire about for being input in the media fingerprints storehouse with this media fingerprints, if find the media fingerprints of coupling fully, the copyright ownership of the existing registration of copyright of identical content is described, the copyright ownership registration process of this copyright stops.Otherwise, illustrate that this copyright content not yet is registered or at least its partial content item not yet be registered, this user has the copyright ownership that not yet is registered content to corresponding., for this copyright generates ownership certificate, the publisher of this copyright, copyright ownership and the corresponding media fingerprints index of this each content item of copyright content have wherein been comprised.Note, the publisher of this copyright may not be the copyright ownership owner of copyright content all the elements item.
The present embodiment is when carrying out copyright registration to copyright, can extract from copyright can this copyright of unique identification media fingerprints, the ownership certificate of this copyright will be encapsulated into again together with the ownership information of its media fingerprints and this copyright, for the ownership identification provides foundation, the ownership authentication result that obtains is accurate; In addition,, if the extraction of matchmaker's line and ownership certificate are separate between generating, can realize copyright registration by network between copyright registration applicant and copyright registration ISP, the ownership verification process is simple and convenient.
The dynamic digital works are widely used in network at present in addition, and have the time dependent characteristics of its content.Such as the copyright of delivering with blog/daily record (blog) form, the author can edit and update it at any time, and this may comprise the editor to content of text, and the picture that comprises in the additions and deletions copyright or audio frequency and video montage etc.In prior art, be used for confirming whether the dynamic digital works have the technology of copyright and corresponding copyright ownership, also are at present blank, lack simultaneously unified copyright registration and the situation of management platform, can't realize the confirmation to the ownership of dynamic digital works.
Further, for the dynamic digital works, after for example registered copyright having been carried out corresponding editing operation, ownership certificate for newly-generated copyright also needs correspondingly to upgrade, the embodiment of the present invention provides a kind of register method to the dynamic digital works, the schematic flow sheet concrete, that the ownership certificate in the ownership certificate registration of the copyright ownership authentication method that Fig. 3 provides for the embodiment of the present invention upgrades comprises:
Step 301: when definite registered copyright is edited, delete the former media fingerprints of registered copyright in described media fingerprints storehouse.
Because the ownership certificate of registered copyright is known, so can obtain by the parsing to ownership certificate the index of media fingerprints in the media fingerprints storehouse of registered copyright, again by the media fingerprints of this index search to registered copyright, and then with this media fingerprints deletion.
Concrete,, for the distribution platform of copyright,, as the server of issuing microblog, after generating, namely registers copyright, distribution platform can carry out association to the ownership certificate of this copyright, such as this copyright and its ownership certificate being bound etc.So can directly obtain the ownership certificate of this copyright when thereafter this copyright being edited.And when this copyright propagated, while forwarding, no matter be illegal or legal means, the situation that exists copyright to separate with ownership certificate, need copyright is carried out ownership authentication when the ownership information of judgement copyright, namely in the embodiment of the present invention step 001 to the verification process to copyright of step 003.
Step 302: the registered copyright after editor is extracted media fingerprints, add the media fingerprints of the registered copyright after editor to described media fingerprints storehouse, and obtain three index of media fingerprints in described media fingerprints storehouse of the registered copyright after editor.
Step 303:, according to the ownership certificate of the registered copyright after the described editor of ownership Information generation of the registered copyright after described the 3rd index and editor, the ownership certificate of the registered copyright after described editor is replaced the ownership certificate of the described registered copyright in described ownership certificate storehouse.
Concrete, for example, the user revises a copyright, such as one piece of announced daily record of editor.At first delete and former day aim at media fingerprints corresponding in the media fingerprints storehouse, specifically can resolve the index that obtains media fingerprints by the ownership certificate of this former daily record, thus the media fingerprints in deletion media fingerprints storehouse.Need simultaneously again to extract the media fingerprints of the content item that this copyright comprises, again retrieve the media fingerprints storehouse to determine the copyright ownership of content item, add media fingerprints to the media fingerprints storehouse, and obtain the index of media fingerprints in the media fingerprints storehouse; The ownership certificate of the registered copyright after editor is replaced the ownership certificate of the registered copyright in the ownership certificate storehouse, namely upgraded the media fingerprints index in ownership certificate.
Further, to copyright carry out signature analysis obtain can these works of unique identification unique feature, thereby extract the media fingerprints of copyright, the mode of specifically extracting media fingerprints can be for multiple, for example:
Mode one, employing hash algorithm calculate cryptographic hash to the copyright of appointment, extract media fingerprints;
Hash algorithm also is called hash algorithm, matchmaker's line extraction based on hash algorithm can be considered as copyright a bit stream, adopt hash algorithm such as: SHA1, MD5 etc. extract the cryptographic hash of this copyright, and use the media fingerprints of this cryptographic hash as these works of sign.Wherein, the mathematical property of Hash operation can be so that the differentiation of media fingerprints be guaranteed, but robustness is slightly poor, adopt cryptographic hash as the advantage of fingerprint be method simple and clear, easily implement, and its authentication result accurately can be used as evidence and uses.
Mode two, employing feature extraction algorithm calculate content-based feature to the copyright of appointment, extract media fingerprints.
Can be according to the type of copyright such as writing, software, software code, image, audio frequency, video, planar design, three-dimensional picture or the types such as scene, data, utilization is extracted media fingerprints for the content-based feature of feature extraction algorithm calculating of the type, as the unique feature of this copyright of sign.For example: can determine the media fingerprints extraction algorithm of image based on the SIFT feature extraction algorithm, with the most stable local feature point that extracts in the metric space media fingerprints (figure line) as image.
The structural representation of the copyright ownership Verification System that Fig. 4 provides for the embodiment of the present invention, in conjunction with shown in Figure 4, this copyright ownership Verification System 40 comprises:
Matchmaker's line extraction apparatus 100, be used for copyright to be certified is extracted media fingerprints;
Matchmaker's line contrast device 101, be used for the media fingerprints of the copyright to be certified that will extract and the media fingerprints coupling in media fingerprints storehouse 103,, if find the media fingerprints with the media fingerprints of the copyright to be certified that extracts coupling in media fingerprints storehouse 103, obtain first index of media fingerprints in media fingerprints storehouse 103 of coupling;
Copyright ownership Verification System 40 provided by the invention, matchmaker's line extraction apparatus can extract media fingerprints that can this copyright of unique identification from copyright to be certified, and media fingerprints and the media fingerprints in the media fingerprints storehouse that by matchmaker's line contrast device, will extract mate, if the media fingerprints of the media fingerprints that finds and extract coupling, obtain the index of media fingerprints in the media fingerprints storehouse that mates; The ownership certificate resolver is resolved the ownership certificate of registered copyright in the ownership certificate storehouse, obtain the ownership information corresponding with index, the ownership authentication of realization to copyright to be certified,, for the ownership identification provides foundation, obtain ownership authentication result accurately.The concrete implementation procedure with above-mentioned correlation technique embodiment is identical, can, with reference to the record of above-mentioned correlation technique embodiment, not repeat them here in detail.
Further, matchmaker's line comparative device 101 of providing of the embodiment of the present invention specifically comprises:
Identity property comparing module 105, be used for judging whether the media fingerprints of the copyright to be certified that extracts is identical with a media fingerprints in media fingerprints storehouse 103,, if identical, determine the media fingerprints that the media fingerprints in media fingerprints storehouse 103 mates for the media fingerprints with the copyright to be certified that extracts;
Further, the structural representation of another copyright ownership Verification System 40 that Fig. 5 provides for the embodiment of the present invention, in conjunction with shown in Figure 5,
Matchmaker's line extraction apparatus 100, be used for copyright to be registered is extracted media fingerprints; Add the media fingerprints of copyright to be registered to media fingerprints storehouse 103, and obtain second index of media fingerprints in media fingerprints storehouse 103 of copyright to be registered;
The copyright ownership Verification System 40 that the embodiment of the present invention provides also comprises: ownership certificate maker 107, be used for the ownership certificate according to the ownership Information generation copyright to be registered of the second index and copyright to be registered, add the ownership certificate of copyright to be registered to ownership certificate storehouse 104, to register copyright to be registered.
Further, system also comprises:
Matchmaker's line extraction apparatus 100, also be used for deleting the former media fingerprints of registered copyright in described media fingerprints storehouse when definite registered copyright is edited;
Registered copyright after editor is extracted media fingerprints, add the media fingerprints of the registered copyright after editor to described media fingerprints storehouse, and obtain three index of media fingerprints in described media fingerprints storehouse of the registered copyright after editor.
Ownership certificate renovator 108, be used for the ownership certificate according to the registered copyright after the ownership Information generation editor of the registered copyright after the 3rd index and editor, the ownership certificate of the registered copyright after editor replaced the ownership certificate of the registered copyright in ownership certificate storehouse 104.
Further, matchmaker's line extraction apparatus specifically comprises:, based on matchmaker's line extraction module of hash algorithm, be used for adopting hash algorithm to extract the media fingerprints of copyright; , based on matchmaker's line extraction module of feature extraction algorithm, be used for adopting feature extraction algorithm to extract the media fingerprints of copyright.
Based on matchmaker's line extraction module of hash algorithm, be used for adopting hash algorithm to calculate cryptographic hash to the copyright of appointment, extract media fingerprints.Particularly, hash algorithm also is called hash algorithm, media fingerprints extraction module based on hash algorithm can be considered as copyright a bit stream, adopt hash algorithm such as: SHA1, MD5 etc. extract the cryptographic hash of this copyright, and use the media fingerprints of this cryptographic hash as these works of sign.Wherein, the mathematical property of Hash operation can be so that the differentiation of media fingerprints be guaranteed, but robustness is slightly poor, adopt cryptographic hash as the advantage of fingerprint be method simple and clear, easily implement, and its authentication result accurately can be used as evidence and uses.
Based on matchmaker's line extraction module of feature extraction algorithm, be used for adopting the right copyright of feature extraction algorithm to calculate content-based feature, extract media fingerprints.Particularly, can be according to the type of copyright such as writing, software, software code, image, audio frequency, video, planar design, three-dimensional picture or the types such as scene, data based on the media fingerprints extraction module of feature extraction algorithm, utilization is extracted media fingerprints for the content-based feature of media fingerprints algorithm calculating of the type, as the unique feature of this copyright of sign.For example: yardstick invariant features conversion (Scale Invariant Feature Transform; Be called for short: be SIFT) that computer vision field is for detection of the algorithm with the Description Image local feature, can screen and stablize key point from the extreme point of metric space, utilize point around it to calculate the descriptor of key point, have very high differentiation and robustness preferably.Can determine the media fingerprints extraction algorithm of image based on the SIFT feature extraction algorithm, with the most stable local feature point that extracts in the metric space media fingerprints (figure line) as image, utilize the Area Ratio invariant feature of affined transformation, carry out the comparison of figure line.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can be completed by the hardware that programmed instruction is correlated with.Aforesaid program can be stored in a computer read/write memory medium.This program when carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that finally: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to aforementioned each embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a copyright ownership authentication method, is characterized in that, comprising:
Copyright to be certified is extracted media fingerprints;
With the media fingerprints of the copyright to be certified that extracts and the coupling of the media fingerprints in the media fingerprints storehouse,, if find the media fingerprints with the media fingerprints of the described copyright to be certified that extracts coupling in described media fingerprints storehouse, obtain first index of media fingerprints in described media fingerprints storehouse of described coupling;
Ownership certificate to registered copyright in the ownership certificate storehouse is resolved, obtain the ownership information corresponding with described the first index, the ownership certificate of described registered copyright comprises the ownership information of described registered copyright and the index of media fingerprints in described media fingerprints storehouse of described registered copyright.
2. copyright ownership authentication method according to claim 1, is characterized in that, the described described media fingerprints that will extract and the coupling of the media fingerprints in the media fingerprints storehouse specifically comprise:
The media fingerprints of the described copyright to be certified that extracts of judgement whether with described media fingerprints storehouse in a media fingerprints identical,, if identical, determine the media fingerprints that the described media fingerprints in described media fingerprints storehouse mates for the media fingerprints with the described copyright to be certified that extracts; Perhaps
The media fingerprints of the described copyright to be certified that extracts of judgement whether with described media fingerprints storehouse in the similarity of a media fingerprints in the predetermined threshold value scope, if determine the media fingerprints that the described media fingerprints in described media fingerprints storehouse mates for the media fingerprints with the described copyright to be certified that extracts.
3. copyright ownership authentication method according to claim 1, is characterized in that, also comprises:
Copyright to be registered is extracted media fingerprints;
Add the media fingerprints of copyright to be registered to described media fingerprints storehouse, and obtain second index of media fingerprints in described media fingerprints storehouse of described copyright to be registered;
Ownership certificate according to the described copyright to be registered of ownership Information generation of described the second index and described copyright to be registered, add the ownership certificate of described copyright to be registered to described ownership certificate storehouse, to register described copyright to be registered.
4. copyright ownership authentication method according to claim 3, is characterized in that, also comprises:
When definite registered copyright is edited, delete the former media fingerprints of registered copyright in described media fingerprints storehouse;
Registered copyright after editor is extracted media fingerprints, add the media fingerprints of the registered copyright after editor to described media fingerprints storehouse, and obtain three index of media fingerprints in described media fingerprints storehouse of the registered copyright after editor;
, according to the ownership certificate of the registered copyright after the described editor of ownership Information generation of the registered copyright after described the 3rd index and editor, the ownership certificate of the registered copyright after described editor is replaced the ownership certificate of the described registered copyright in described ownership certificate storehouse.
5. the described copyright ownership of any one authentication method according to claim 1-4, is characterized in that, extracts media fingerprints and specifically comprise:
Adopt hash algorithm to extract media fingerprints; Perhaps, adopt feature extraction algorithm to extract media fingerprints.
6. a copyright ownership Verification System, is characterized in that, comprising:
Matchmaker's line extraction apparatus, be used for copyright to be certified is extracted media fingerprints;
Matchmaker's line contrast device, be used for the media fingerprints of the copyright to be certified that will extract and the media fingerprints coupling in media fingerprints storehouse,, if find the media fingerprints with the media fingerprints of the described copyright to be certified that extracts coupling in described media fingerprints storehouse, obtain first index of media fingerprints in described media fingerprints storehouse of described coupling;
The ownership certificate resolver, be used for the ownership certificate of the registered copyright in ownership certificate storehouse is resolved, obtain the ownership information corresponding with described the first index, the ownership certificate of described registered copyright comprises the ownership information of described registered copyright and the index of media fingerprints in described media fingerprints storehouse of described registered copyright.
7. copyright ownership Verification System according to claim 6, is characterized in that, described matchmaker's line comparative device specifically comprises:
The identity property comparing module, be used for judging whether the media fingerprints of the described copyright to be certified that extracts is identical with a media fingerprints in described media fingerprints storehouse,, if identical, determine the media fingerprints that the described media fingerprints in described media fingerprints storehouse mates for the media fingerprints with the described copyright to be certified that extracts;
The similarity comparing module, the media fingerprints that is used for the described copyright to be certified that judgement extracts whether with the similarity of the media fingerprints in described media fingerprints storehouse in the predetermined threshold value scope, if determine the media fingerprints that the described media fingerprints in described media fingerprints storehouse mates for the media fingerprints with the described copyright to be certified that extracts.
8. copyright ownership Verification System according to claim 6, is characterized in that, described matchmaker's line extraction apparatus also is used for copyright to be registered is extracted media fingerprints;
Add the media fingerprints of copyright to be registered to described media fingerprints storehouse, and obtain second index of media fingerprints in described media fingerprints storehouse of described copyright to be registered;
Also comprise: the ownership certificate maker, be used for the ownership certificate according to the described copyright to be registered of ownership Information generation of described the second index and described copyright to be registered, add the ownership certificate of described copyright to be registered to described ownership certificate storehouse, to register described copyright to be registered.
9. copyright ownership Verification System according to claim 8, is characterized in that, described matchmaker's line extraction apparatus also is used for deleting the former media fingerprints of registered copyright in described media fingerprints storehouse when definite registered copyright is edited;
Registered copyright after editor is extracted media fingerprints, add the media fingerprints of the registered copyright after editor to described media fingerprints storehouse, and obtain three index of media fingerprints in described media fingerprints storehouse of the registered copyright after editor;
Described system also comprises: the ownership certificate renovator, be used for the ownership certificate according to the registered copyright after the described editor of ownership Information generation of the registered copyright after described the 3rd index and editor, the ownership certificate of the registered copyright after described editor replaced the ownership certificate of the described registered copyright in described ownership certificate storehouse.
10. the described copyright ownership of any one Verification System according to claim 6-9, is characterized in that, described matchmaker's line extraction apparatus specifically comprises:
, based on matchmaker's line extraction module of hash algorithm, be used for adopting hash algorithm to extract media fingerprints;
, based on matchmaker's line extraction module of feature extraction algorithm, be used for adopting feature extraction algorithm to extract media fingerprints.
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| CN201210144570.9A CN103390121B (en) | 2012-05-10 | 2012-05-10 | Copyright ownership authentication method and system |
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| CN201210144570.9A CN103390121B (en) | 2012-05-10 | 2012-05-10 | Copyright ownership authentication method and system |
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| CN103390121B (en) | 2016-12-14 |
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