CN106028175A - Method and device for realizing zero watermark of video - Google Patents
Method and device for realizing zero watermark of video Download PDFInfo
- Publication number
- CN106028175A CN106028175A CN201610454736.5A CN201610454736A CN106028175A CN 106028175 A CN106028175 A CN 106028175A CN 201610454736 A CN201610454736 A CN 201610454736A CN 106028175 A CN106028175 A CN 106028175A
- Authority
- CN
- China
- Prior art keywords
- video
- coefficient
- key frame
- watermark
- camera lens
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8358—Generation of protective data, e.g. certificates involving watermark
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Editing Of Facsimile Originals (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Image Processing (AREA)
Abstract
The invention discloses a method and device for realizing zero watermark of a video. The method comprises the steps of extracting a key frame of the video, processing a key frame image, encrypting a watermark image, constructing zero watermark, registering and the like. By means of the method, a digital watermark is not directly embedded in the video; but, a specific method is constructed, such that the watermark is generated in a database; therefore, a high-safety digital watermark registration method is provided under the condition that the information of the video is completely not changed; the watermark transparency is not influenced; the watermark also has relatively high robustness; and thus, the method and the device can be better used in copyright protection of the content of the video.
Description
Technical field
The present invention relates to Information hiding and digital image processing field, be specifically related to a kind of video
The implementation method of zero watermarking and device.
Background technology
Along with development and the continuous progress of human lives of science and technology, multimedia technology is got over
More being widely applied, multimedia (such as video, audio frequency, image, text etc.) information exists
Our daily life also plays the most important role.Thus, the property right of video
Protection becomes the focus of people's research gradually.Zero watermarking as one not to original video image number
The extensive concern of people has been obtained according to the new digital digital watermark modified.But zero watermarking
Technology develops ripe not enough at present, causes the structure efficiency of zero watermarking and accuracy relatively low,
The contradiction between watermark robustness and video definition is there will be when being embedded by zero watermarking.
Digital watermark technology: digital watermark technology is by some identification informations (i.e. digital watermarking)
Be directly embedded in the middle of digital carrier, but do not affect the use value of original vector, be also not easy by
The consciousness system of people perceives or notices.Information in the carrier is hidden by these, permissible
Reach to confirm creator of content, buyer, transmission secret information or judge carrier whether by
The purpose such as distort.Digital watermarking is an important research direction of Information Hiding Techniques.
Zero watermarking technology: first specific by certain for certain information characterizing characteristics of image
Algorithm extracts, then by the identification information of author and this information in the way of certain specifies
In conjunction with, form the watermark information of a registration, finally this watermark information is registered to third party
Intellectual property information data base in.Owing to the digital watermarking in zero watermarking scheme is registered with
In third-party digital watermark information data base rather than be embedded in Digital Media, therefore
The most there is not Digital Media Quality Down or the problem such as watermark amount is restricted.When there being numeral load
When body works need to make copyright judgement, first pass through certain algorithmic approach and extract work to be detected
The characteristic quantity of product, then by the identification information of original author with the works characteristic quantity extracted with former
Regulation algorithmic approach combine, obtain a new watermark information, it is judged that this watermark information with
The similarity of the watermark information of registration in third party intellectual property information data base, if similar
Property is minimum, then it is assumed that works to be detected are not former registered works, otherwise are considered original work
The works of person.
Summary of the invention
The deficiency existed for prior art and defect, the present invention provides a kind of video zero watermarking
Implementation method and device.
On the one hand, the embodiment of the present invention proposes the implementation method of a kind of video zero watermarking, including:
The extraction of key frame in S1, video: carry out shot segmentation on video sequence, then
Camera lens internal extraction goes out to represent the key frame of camera lens content；
S2, the process of key frame images: to the key frame piecemeal in video, and carry out two dimension
Dct transform, the DC coefficient extracting each piece carries out one-dimensional dct transform, obtains AC system
Number, extracts eigenvalue with AC coefficient；
S3, the encryption of watermarking images: watermarking images is generated after encryption watermark ciphertext；
S4, the structure of zero watermarking: watermark ciphertext is carried out XOR process with described eigenvalue,
Form zero watermarking, be registered in IPR information database.
On the other hand, the embodiment of the present invention proposes the device that realizes of a kind of video zero watermarking, bag
Include:
Extraction unit, for carrying out shot segmentation on video sequence, then carries inside camera lens
Take out the key frame representing camera lens content；
Processing unit, is used for the key frame piecemeal in video, and carries out two-dimensional dct transform,
The DC coefficient extracting each piece carries out one-dimensional dct transform, obtains AC coefficient, uses AC
Coefficient extracts eigenvalue；
Ciphering unit, for generating watermark ciphertext after encryption by watermarking images；
Structural unit, for watermark ciphertext is carried out XOR process with described eigenvalue, is formed
Zero watermarking, is registered in IPR information database.
There is advantages that
The watermark robustness and the video that occur when can balance conventional video digital watermark embedding are clear
Contradiction between clear degree, does not change any video data.
Improve zero watermarking construction algorithm, improve structure efficiency and the accuracy of algorithm.
Can keep out H.264, MPEG-4 compression, noise supplies, filtering, and frame shearing etc. is attacked.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of implementation method one embodiment of video zero watermarking of the present invention；
Fig. 2 is the structural representation realizing device one embodiment of video zero watermarking of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below will
In conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu ground describe, it is clear that described embodiment be a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
Have and make the every other embodiment obtained under creative work premise, broadly fall into the present invention
The scope of protection.
Referring to Fig. 1, the present embodiment discloses the implementation method of a kind of video zero watermarking, including:
The extraction of key frame in S1, video: carry out shot segmentation on video sequence, then
Camera lens internal extraction goes out to represent the key frame of camera lens content；
S2, the process of key frame images: to the key frame piecemeal in video, and carry out two dimension
Dct transform (discrete cosine transform), extracts the DC coefficient (DC component) of each piece
Carry out one-dimensional dct transform, obtain AC coefficient (AC compounent), extract with AC coefficient
Eigenvalue；
S3, the encryption of watermarking images: watermarking images is generated after encryption watermark ciphertext；
S4, the structure of zero watermarking: watermark ciphertext is carried out XOR process with described eigenvalue,
Form zero watermarking, be registered to IPR (Intellectual Property Rights intellectual property) letter
In breath data base.
Key frame of video extractive technique: key frame is main information content in one group of camera lens of reflection
A frame or some two field pictures, camera lens content can be expressed compactly.Because each camera lens
Shooting under Same Scene, each two field picture in same camera lens has sizable repetition
Information.In view of the problem of memory capacity, only storage camera lens key frame, can reach data pressure
The effect of contracting.Secondly, representing camera lens with key frame, effect is similar to feature description, this
Sample carries out feature extraction again will increase efficiency.Finally, key frame provides original video sequence
Row omission represent, and according to user need multiple application service is provided, ratio is if referring to
Go out specific part required in video content, or the application as video index, in S1
Method particularly includes:
First being camera lens by Video segmentation, the basic skills of shot segmentation calculates video
Interframe distance, and distance relatively thus is judged shot boundary with certain threshold ratio.Camera lens
Between conversion can be divided into sudden change and gradual change.For abrupt shot, belong to the phase of two camera lenses
The feature of adjacent frame can differ greatly, and now can set a threshold value, when video consecutive frame is special
When distance between levying is more than threshold value, then can determine that the sudden change that there is camera lens.For gradual shot,
Video content change ratio is shallower, does not occur drastically to change, the therefore change of frame of video feature
Change also ratio shallower, need two threshold values, be used for judging beginning and the end of gradual change.
About shot segmentation, it is possible to use existing dividing method, the detailed process present invention is the most superfluous
State.The clustering algorithm used mainly comprises the following steps: after 1, being camera lens by Video segmentation, according to often
In one camera lens, the similarity (specifically calculating similarity with Euclidean distance) of successive frame is by N
Frame (assuming that a camera lens has N frame) cluster is M race；2, M race is optimized, choosing
(meaning of candidate race is the meansigma methods than other races of the video frame number in certain family to go out candidate race
Want big)；3, selecting key frame from candidate race, selection principle is closest with cluster centre
That frame.If more than 1 of the quantity of the candidate race that the 2nd step obtains, then can be therefrom
Randomly select 1 and carry out key frame extraction, it is also possible to the time that therefrom selecting video frame number is most
Race is selected to carry out key frame extraction.
In the embodiment of the present invention, employ the extracting method of cluster, based on camera lens internal image
The difference of content, can choose the key frame that quantity is different automatically.So can be largely
One camera lens of reduction in choose the redundancy of information represented by key frame, thus improve video
The middle accuracy realizing Zero watermarking method.
In S2 method particularly includes:
The key frame that extracts in step S1 is carried out to the piecemeal of 8*8 according to brightness, to often
Individual macro block carries out the two-dimensional dct transform of 8*8, draws DC coefficient, carries out DC coefficient
Arnold maps and reaches the effect of shuffle operation, then carries out the one-dimensional dct transform of 1*4,
To AC coefficient.Eigenvalue is extracted with AC coefficient.
In S3 method particularly includes:
It is one-dimensional binary sequence by binary bitmap scanning to be embedded, then this sequence is entered
Row spread processing；Utilize Logistic to map and generate binary chaotic sequence；Chaos sequence is same
Sequence after watermark spread spectrum carries out XOR, obtains watermark ciphertext.
Referring to Fig. 2, what the present embodiment disclosed a kind of video zero watermarking realizes device, including:
Extraction unit 1, for carrying out shot segmentation on video sequence, then carries inside camera lens
Take out the key frame representing camera lens content；
Processing unit 2, is used for the key frame piecemeal in video, and carries out two-dimensional dct change
Changing, the DC coefficient extracting each piece carries out one-dimensional dct transform, obtains AC coefficient, uses
AC coefficient extracts eigenvalue；
Ciphering unit 3, for generating watermark ciphertext after encryption by watermarking images；
Structural unit 4, for watermark ciphertext is carried out XOR process with described eigenvalue, is formed
Zero watermarking, is registered in IPR information database.
First video is divided into camera lens by the present invention, then selects key frame by the method for cluster, right
The image of key frame processes, and is specially and first carries out 2D-DCT conversion, obtains DC system
Number, with Arnold scramble DC coefficient, carries out dct transform by DC coefficient and obtains AC system
Number, uses AC coefficient to extract eigenvalue；It is scanned obtaining two-value by binary bitmap
Carry out spread processing after sequence, map, with Logistic, the binary chaotic sequence generated and carry out different
Or obtain watermark ciphertext；Finally this watermark ciphertext is carried out XOR with eigenvalue and process generation zero
Watermark sequence, is registered to this zero watermarking sequence in IPR information database, former not revising
The efficiency of existing zero watermarking construction algorithm can be overcome, balance on the basis of beginning video
Lance between the watermark robustness and the video definition that occur during conventional video digital watermark embedding
H.264 shield, and improving while video watermark robustness, withstand, MPEG-4 compression,
Noise supplies, filtering, and frame shearing etc. is attacked.
Although be described in conjunction with the accompanying embodiments of the present invention, but those skilled in the art
Various modifications and variations can be made without departing from the spirit and scope of the present invention,
Within the scope of such amendment and modification each fall within and are defined by the appended claims.
Claims (5)
1. the implementation method of a video zero watermarking, it is characterised in that including:
The extraction of key frame in S1, video: carry out shot segmentation on video sequence, then
Camera lens internal extraction goes out to represent the key frame of camera lens content；
S2, the process of key frame images: to the key frame piecemeal in video, and carry out two dimension
Dct transform, the DC coefficient extracting each piece carries out one-dimensional dct transform, obtains AC system
Number, extracts eigenvalue with AC coefficient；
S3, the encryption of watermarking images: watermarking images is generated after encryption watermark ciphertext；
S4, the structure of zero watermarking: watermark ciphertext is carried out XOR process with described eigenvalue,
Form zero watermarking, be registered in IPR information database.
Method the most according to claim 1, it is characterised in that described S1, including:
After Video segmentation is camera lens, should according to the similarity of successive frame in each camera lens
All picture frames of camera lens cluster, and the cluster race obtaining cluster is optimized, and selects
Candidate race, and from described candidate race, select the key frame representing this camera lens content.
Method the most according to claim 1, it is characterised in that described S2, including:
Described key frame is carried out according to brightness the piecemeal of 8*8, each macro block is carried out 8*8
Two-dimensional dct transform, obtain DC coefficient；
With Arnold scramble DC coefficient, the DC coefficient after scramble is carried out dct transform and obtains
To AC coefficient, AC coefficient is used to extract eigenvalue.
Method the most according to claim 1, it is characterised in that described S3, including:
It is one-dimensional binary sequence by binary bitmap scanning to be embedded, then this sequence is entered
Row spread processing；
Utilize Logistic to map and generate binary chaotic sequence；
Sequence after being spread with watermark by chaos sequence carries out XOR, obtains watermark ciphertext.
5. a video zero watermarking realize device, it is characterised in that including:
Extraction unit, for carrying out shot segmentation on video sequence, then carries inside camera lens
Take out the key frame representing camera lens content；
Processing unit, is used for the key frame piecemeal in video, and carries out two-dimensional dct transform,
The DC coefficient extracting each piece carries out one-dimensional dct transform, obtains AC coefficient, uses AC
Coefficient extracts eigenvalue；
Ciphering unit, for generating watermark ciphertext after encryption by watermarking images；
Structural unit, for watermark ciphertext is carried out XOR process with described eigenvalue, is formed
Zero watermarking, is registered in IPR information database.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610454736.5A CN106028175A (en) | 2016-06-21 | 2016-06-21 | Method and device for realizing zero watermark of video |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610454736.5A CN106028175A (en) | 2016-06-21 | 2016-06-21 | Method and device for realizing zero watermark of video |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106028175A true CN106028175A (en) | 2016-10-12 |
Family
ID=57085736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610454736.5A Pending CN106028175A (en) | 2016-06-21 | 2016-06-21 | Method and device for realizing zero watermark of video |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106028175A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222749A (en) * | 2017-06-21 | 2017-09-29 | 同济大学 | A kind of chaos code constructing method for wireless video transmission |
| CN111984942A (en) * | 2020-07-23 | 2020-11-24 | 西安理工大学 | Robust video zero-watermarking method based on extremely complex exponential transformation and residual error neural network |
| CN112153482A (en) * | 2020-09-16 | 2020-12-29 | 山东科技大学 | Audio and video matching zero watermark generation method and audio and video tamper-proof detection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662686B (en) * | 2009-09-07 | 2011-06-15 | 江南大学 | DCT domain video watermark treatment method based on texture features |
| CN102547297A (en) * | 2012-02-28 | 2012-07-04 | 中国传媒大学 | MPEG2 (Moving Picture Experts Group 2) video watermarking realization method based on DC (Discrete Cosine) coefficient |
-
2016
- 2016-06-21 CN CN201610454736.5A patent/CN106028175A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662686B (en) * | 2009-09-07 | 2011-06-15 | 江南大学 | DCT domain video watermark treatment method based on texture features |
| CN102547297A (en) * | 2012-02-28 | 2012-07-04 | 中国传媒大学 | MPEG2 (Moving Picture Experts Group 2) video watermarking realization method based on DC (Discrete Cosine) coefficient |
Non-Patent Citations (1)
| Title |
|---|
| 晏啟明: "基于关键帧的视频水印算法研究", 《万方数据库》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107222749A (en) * | 2017-06-21 | 2017-09-29 | 同济大学 | A kind of chaos code constructing method for wireless video transmission |
| CN107222749B (en) * | 2017-06-21 | 2019-10-18 | 同济大学 | A kind of chaos code constructing method for wireless video transmission |
| CN111984942A (en) * | 2020-07-23 | 2020-11-24 | 西安理工大学 | Robust video zero-watermarking method based on extremely complex exponential transformation and residual error neural network |
| CN111984942B (en) * | 2020-07-23 | 2023-10-27 | 西安理工大学 | Robust video zero watermarking method based on polar complex exponential transformation and residual neural network |
| CN112153482A (en) * | 2020-09-16 | 2020-12-29 | 山东科技大学 | Audio and video matching zero watermark generation method and audio and video tamper-proof detection method |
| CN112153482B (en) * | 2020-09-16 | 2022-02-22 | 山东科技大学 | Audio and video matching zero watermark generation method and audio and video tamper-proof detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Dittmann et al. | Content-based digital signature for motion pictures authentication and content-fragile watermarking | |
| US9773290B2 (en) | Content watermarking | |
| WO2016082277A1 (en) | Video authentication method and apparatus | |
| CN112561766B (en) | Image steganography and extraction method and device and electronic equipment | |
| US8135168B2 (en) | System for embedding data | |
| CN106454367B (en) | Multimedia file identification method and system | |
| CN106028175A (en) | Method and device for realizing zero watermark of video | |
| Ying et al. | From image to imuge: Immunized image generation | |
| CN115482142A (en) | Dark watermark adding method, extracting method, system, storage medium and terminal | |
| CN104123693B (en) | Multi-functional digital watermarking method for three-dimensional picture | |
| Mao et al. | A method for video authenticity based on the fingerprint of scene frame | |
| JP2018147019A (en) | Object extraction device, object recognition system and meta-data creating system | |
| Kuo et al. | Fusion of color edge detection and color quantization for color image watermarking using principal axes analysis | |
| Xie et al. | A Turtle Shell based RDH scheme with two-dimensional histogram shifting | |
| CN106303756A (en) | A kind of method and device for video copyright protecting | |
| CN117615075A (en) | Watermark adding and watermark identifying method, device, equipment and readable storage medium | |
| Hamon et al. | Histogram-based perceptual hashing for minimally changing video sequences | |
| Mishra et al. | Detection of clones in digital images | |
| Kumar et al. | Robust approach of video steganography using combined keypoints detection algorithm against geometrical and signal processing attacks | |
| CN111275602A (en) | Face image security protection method, system and storage medium | |
| CN103379325A (en) | Video geographical data digital watermarking method with copyright protection service orientation | |
| Chang et al. | Reversible Image Hiding for High Image Quality Based on Histogram Shifting and Local Complexity. | |
| Ahmad et al. | Increasing the performance of difference expansion-based steganography when securing medical data | |
| Hwang et al. | Watermark in color image | |
| Kadian et al. | A Highly Secure and Robust Copyright Protection Method for Grayscale Images using DWT-SVD |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |