71results about How to "Achieve copyright protection" patented technology

An information-processing device includes a first interface configured to transmit content to a first communication unit through a network, a second interface configured to receive a first unique identification allocated to the first communication unit from a second communication unit and transmit a second unique identification allocated to the information-processing device to the second communication unit, an identification list configured to store at least one unique identification through the second interface and an identification judgment unit configured to determine whether the first unique identification received through the first interface is stored in the identification list, wherein when the identification judgment unit determines that the unique identification of the first communication unit is stored in the identification list, the first interface allows the content to be transmitted to the first communication unit.

The invention relates to the technical field of copyright image protection, and provides a decentralized image copyright protection system and method with infringement real-time detection, and the method comprises the following steps of (1), enabling a registered user to upload an image through a client, and enabling an SIFT image feature extraction algorithm in the system to carry out the featuredata collection on the uploaded image; (2) extracting the invariant characteristics, such as visual angle, translation, affine, brightness, rotation, etc., of an existing copyright image by a user through an SIFT algorithm to form a local feature vector set of the image, and taking the local feature vector set as a registered image feature data set; (3) carrying out distributed storage on the feature data sets in the steps (1) and (2) by utilizing an IPFS (Internet Protocol File System), and constructing a network transmission protocol for persistent and distributed storage and file sharing;and (4) performing comparative analysis and calculation, and judging that the image does not accord with the condition of forming a new work. The system and the method provided by the invention have the characteristics of being tamper-proofing, realizing the high safety, permanent preservation and decentralization, being able to trace, being low in cost, etc.

The invention discloses a copyright protection system, multimedia data transmitting and receiving equipment and a method based on a cloud media publishing platform, which are used for the technical field of information to be used for realizing that when multimedia content is published by computing the could publishing platform, the copyright protection to the published multimedia content can be safely and reliably carried out, and the content of a multimedia product can be prevented from being illegally copied or being used without authorization. When the multimedia content is published through an Internet, the content of the multimedia product is used as a data stream, the data stream is scattered, encrypted, dispersedly transmitted and then enters Internet user terminal equipment in sequence, so that the multimedia content can not allow an Internet user terminal to have a complete multimedia file at any node, and meanwhile, the data stream is subject to storage self-damage processing when being decrypted and loaded in an internal storage, so that the multimedia product can be prevented from being illegally used or being used and spread without the authorization, and further, the copyright protection of the multimedia product on the Internet can be realized.

The invention relates to the technology of multimedia processing and particularly relates to an infringement detection method and device for a live broadcast stream. The method and the device are usedfor realizing infringement detection of a live broadcast video. The method comprises the steps of taking a time slice as granularity, extracting live broadcast stream segments from the live broadcaststream, for each live broadcast stream segment, dividing the live broadcast stream segment into a plurality of live broadcast stream sub-segments, extracting content features among the live broadcaststream sub-segments in parallel, and converting the content features into feature indexes; carrying out feature index query matching on the live broadcast stream sub-segments contained in each live broadcast stream segment and each body segment contained in a body, thereby determining unit time body segment content feature hit times of the live broadcast stream relatively to the body within a settime period; and judging that the live broadcast stream infringes copyright when it is determined that the unit time body segment content feature hit times reaches a set times threshold. Infringementcontent of the live broadcast video can be accurately and automatically monitored in real time, and copyright protection in a live broadcast scene is realized.

The invention provides a compression sensing theory-based interactive supported dual watermark generating and detecting method. The method comprises a watermark generation part and a watermark detection part, wherein the method for generating the watermark comprises the following steps of: embedding a robustness watermark in a vector image by adopting a classical singular value decomposition (SVD) algorithm, extracting a semi-fragile watermark from an image Aw with a robust watermark, and saving the semi-fragile watermark as a zero watermark; and the method for detecting the watermark comprises the following steps of: extracting the robust watermark from the image to be detected, extracting a semi-fragile watermark from the image to be detected, and comparing the semi-fragile watermark with the registered zero watermark to determine the authenticity and completeness of the image content and recover the tempered part. Different from the condition that two watermarks in the conventional dual watermark system work independently and even influence each other, the method ensures that the two watermarks cooperate with each other to realize functions to generate a mutually enhancing effect, namely interactive support, which is mainly reflected in the security aspect and the function aspect.

The invention is concerned with compose method of robust watermark and fragile watermark in the multimedia information safety technology field, especially of the production of robust watermark and fragile watermark, inset, pick-up and juggle detecting method of watermark. Using the instantaneous mixing model of blind source separation, the robust watermark and fragile watermark with large mount of information inset into originality audio frequency signal in arbitrary sequence, and the accurate orientation of juggle reflects the wave of signal to originality audio frequency data. It opens multi-objective inset, pick-up and juggle detecting method of watermark, and the safety of watermark depends on the encryption key information. Input the robust watermark and fragile watermark to the audio frequency production at the same time to protect the copyright and local the juggle. Because the inset of robust watermark and fragile watermark is in arbitrary sequence without the restriction of inset order, without keeping secret and pick-up arithmetic, it reduces the difficulty of arithmetic.

The invention provides confidential treatment method and device for a code. The method comprises the steps of performing hash algorithm for variable names in the code of a js file according to the action scope of the js file to obtain the hash result of the js file; packaging and encrypting functions in the has result to obtain a packaged and encrypted character string. According to the technical scheme, the method has the advantages that the blended hash results are packaged and encrypted, so that the readability of the code of the js file can be reduced, the difficulty of a pirate at cracking and understanding of the js file is increased, and as a result, the copyright of the js file can be protected.

The invention discloses a gray image watermark embedding and extracting method based on singular value decomposition. The gray image watermark embedding and extracting method based on singular value decomposition comprises the flowing steps: conducting singular value decomposition on an image and obtaining matrix components; conducting encoding and storage on singular values of a diagonal matrix of a singular value matrix and obtaining watermark signals; blocking a hosting image and choosing image blocks high in masking effect; conducting singular value decomposition on the image blocks and embedding the watermark signals into the image blocks; and conducting inverse transformation of the singular value decomposition on the image blocks. The gray image watermark embedding and extracting method based on singular value decomposition has the advantages that the embedding of the gray image watermark image is achieved, the watermark comprises a plurality of straight information, no using limiting exists on the size of the watermark image, and requirements of enterprises concealing personalized enterprise logos as watermarks can be met; the watermark embedding and extracting method can resist a plurality of image aggressive behaviors, and algorithm robustness is high; gray image watermark embedding and extracting method based on singular value decomposition can effectively detect watermark information content, solves the problem of image being illegally issued and the like, and is of great value for healthy and fast development of internet industries.

The invention discloses a visual secret sharing-based image content tampering detection method. The method comprises the following steps of: generating a watermarking image by using copyright information of the image; generating a verification shadow and a detection shadow by combining the content characteristic of the image; recovering a water mark from the verification shadow and the detection shadow by using a visual secret sharing technology; and comparing the recovered water mark with the original watermarking to determine whether the image is tampered so as to realize tampering detection and determine the position of a tampered region. In the method, the watermarking image is generated by using the copyright information of the image without embedding and extracting the watermarking, but the tampering detection of image content is realized by using the visual secret sharing technology on the premise of not damaging the original image data.

The invention relates to data transmission system for the management of digital copyright, the system includes: content providing system which is used to provide the media data; decoder which is used to connect with the content providing system to obtain the key and decipher and decode the media data; authorization certification system which is connected with the decoder and certify the decoder and provide key for the decoder; display system which is connected with the decoder and display the data information input by the decoder. The decoder includes: authentication module which is connected with the authentication system and permission adapter, deciphering module which is connected with the authentication module and the package adapter, and the decoding module which is connected with the deciphering module and the display system. The technical project of invention can realize the data transmission between the content providing system, decoder and display system, and it can protect the key and the media data effectively, and realize the media copyright protection for the system level.

The invention discloses a digital television timing charging and copyright protecting method based on watermarks. The digital television timing charging and copyright protecting method comprises the following steps: 1) recording the starting time that a user watches a digital television and the program information; 2) reading a PDK (PERL Development Kit) in a smart card by virtue of a bidirectional set top box, enabling the PDK to generate watermark signals, and carrying out the error correction of coding on the watermark signals; 3) enabling the watermark signals processed by the error correction of coding through a decoder at the time of decoding into the middle-low frequency DCT coefficients of an I frame luminance component after the I frame is researched, and then outputting and playing the middle-low frequency DCT coefficients; 4) billing the digital television by hours through a user management system; 5) extracting watermarks of suspended illegal videos when the suspended illegal videos are played in the program of the digital television, and determining the copyright by utilizing the extracted watermark signals, and further judging the user illegally spreading programs of the digital television. The digital television timing charging and copyright protecting method disclosed by the invention has the advantages of novel and reasonable design, simplicity in operation, low cost, high accuracy in timing charging, and high popularization and application value, and also has the advantage that the source of the copyright infringement can be tracked. The digital television timing charging and copyright protecting method is suitable for the popularization and development of the digital television.

A packet transmitter apparatus capable of transmitting, by use of widely utilized packets such as IP packets and the like, contents protected by content protection technologies such as DTCP and the like. There are included a transmission condition setting/managing part(404) for extracting, from received non-A/V data or A/V data, at least one of A/V data billing information, reproduction control information and copy control information and for producing, from the extracted information, encryption mode information indicative of an encryption mode that is a condition when A/V data are transmitted; an encrypted data producing part(406) for producing encrypted data by encrypting, based on a transmission condition as decided by a combination of input terminal information, data format information and attribute information, the received A/V data and further by adding, to the encrypted A/V data, an encryption information header based on the encryption mode information; and a packetizing part(403) for producing a packet by adding a packet header to the produced encrypted data.

The invention discloses a multi-functional digital watermarking method for a three-dimensional picture. The multi-functional digital watermarking method for the three-dimensional picture includes watermark embedding, watermark extraction and temper localization, to be specific, using the similarity between the characteristic watermark extracted from the left viewpoint picture of an attacked three-dimensional watermark picture and a robust watermark and the similarity between the characteristic watermark extracted from the left viewpoint picture of the attacked three-dimensional watermark picture and a robust watermark as evaluation bases to realize the copyright protection for the three-dimensional picture; locating tempering blocks in the left viewpoint picture and the right viewpoint picture of the attacked three-dimensional watermark image in two steps, for non-matched blocks, realizing the temper detection through judging whether there is a set numerical linear relationship between two corresponding high-frequency DCT coefficients in a DCT coefficient matrix of each non-matched block, and for matched blocks, using characteristic watermarks and embedded fragile watermarks extracted from the matched blocks to realize the temper detection so as to realize the temper localization function of the three-dimensional image.

The invention discloses a reversible information hiding framework with contrast pull-up by using histogram translation, and designs an improved RDH based on prediction error histogram optimal coding to expand a main body algorithm into an efficient hiding framework with dual embedding capability. Compared with a plurality of previous RDH technologies based on contrast ratio pull-up, the frameworkprovided by the invention not only has higher information embedding rate, but also can generate a secret-containing image with higher quality, and in addition, the security test also proves that the framework can effectively resist a plurality of famous steganalysis technologies (such as Enable classifiers and the like). Moreover, the framework has a dual-embedding function, and can embed copyright information such as an image identifier, a serial number, characters and the like into the carrier on the premise of ensuring the original appearance of the digital carrier, so as to achieve the purposes of copyright protection, integrity check and the like of the carrier.

The invention discloses a method for managing data sharing in a personal data bank and a network side device, wherein the method comprises the following steps that: a management center of the personal data bank receives sharing management authorization information sent by a client, the sharing management authorization information comprises a time limit for accessing a personal data storage subunit, and the management center of the personal data bank acquires a personal data bank identification corresponding to the client and stores the time limit corresponding to the personal data bank identification; and the management center of the personal data bank receives access information sent by an access client, and feed back the data in the corresponding personal data storage unit to the access client after judging the current time is in the time limit corresponding to the personal data bank identification contained in the access information. The proposal of the invention achieves the management to the personal data storage subunit through the personal data bank identification similar to a bank account, and is convenient for by users to use; besides, the copyright protection of accessing personal data is achieved.

The invention discloses a robust video zero-watermarking method based on polar complex exponential transformation and a residual neural network, and the method comprises the steps: carrying out the preprocessing of a video, and selecting a key frame of each group of shots; encrypting the original watermark of the video; obtaining an invariant moment of the key frame by means of polar complex exponential transformation; sending the invariant moment into a pre-trained deep residual neural network model; extracting robust content characteristics of the key frame; carrying out exclusive-OR operation on the robust content characteristics and the encrypted watermarks; generating a unique robust zero-watermark signal of the video, selecting a key frame from the to-be-verified video, extracting robust content characteristics of the key frame, and performing exclusive-OR operation on the robust content characteristics and the robust zero-watermark signal corresponding to the to-be-verified video to obtain an original watermark, thereby realizing copyright verification of the video. According to the robust video zero-watermark method, the balance problem between robustness and imperceptibility is solved, the desynchronization attack resistance is improved, and the copyright of video media can be effectively protected.

The invention discloses a method for downloading digital media information. The method is characterized by comprising the following steps that: 1) a user registers and acquires an account and a password on a digital media downloading server; 2) the digital media downloading server performs identity authentication on a request sent by a digital media downloading terminal and issues an identity token for the user; 3) after the authentication succeeds, latest digital media information is checked; 4) after the user sends a program downloading request, a user management server performs downloading authentication; 5) a downloaded torrent file starts corresponding protocol downloading digital media information; and 6) the digital media downloading server automatically transmits the latest digital media information to the authenticated digital media downloading terminal and automatically downloads the transmitted digital media information. After the method is used, rapid flow and convenient share of the digital media information is achieved, the safety of the media information is ensured and the service quality and reliability of an entire digital media downloading system are enhanced.

The invention discloses an expression uploading method and device, and belongs to the technical field of computers. The method comprises the steps that an expression uploaded by a designer through an expression uploading account is received; whether the expression accords with uploading conditions or not is detected; if the expression accords with the uploading conditions, binding is conducted on the expression and the expression uploading account, and the expression is used by all users in a target application program. The problem that in the prior art, copyright protection of expressions cannot be conducted is solved, and the effect of conducting copyright protection on the expressions uploaded by the designer can be achieved.

The invention relates to an immune and digital image watermarking method for leveled rights management of digital works. The method comprises a part of watermark embedded and leveled quality lock control processing and a part of leveled rights management and protection; watermark embedded and leveled quality lock control processing is composed of a watermark embedding process and a leveled quality lock control process; the watermark embedding process comprises watermark pre-processing, copyright watermark embedding, rights watermark embedding and quality lock and control thereof, and after watermark embedding, different levels of image qualities are locked and controlled in the leveled manner; and leveled rights management and protection is formed by key distribution and rights distribution. According to the invention, leveled using rights and copyright rights protection are realized, related rights are separated effectively and are thus not overlapped, attacks according to similarity of adjacent pixels can be prevented effectively, and thus, the method serves as a rights management mode in the authorization mode, is highly safe, and provides technical support for safe sharing of digital image works in a digital community.

The invention relates to a screening method and a screening system for work input based on a block chain. The method comprises the following steps that author information and to-be-recorded works areinput into one or more network nodes based on a block chain network, the network nodes where the author information and the to-be-recorded works are input serve as broadcast nodes, and the network nodes where the author information and the to-be-recorded works are not input serve as response nodes; The broadcast node broadcasts author information and to-be-recorded works to the response node; Calling the stored works by the response nodes, comparing the similarity with the to-be-recorded works, and storing author information and the to-be-recorded works if the similarity between the to-be-recorded works and the stored works is smaller than a similarity threshold value. According to the method and system, similarity comparison is conducted on the to-be-recorded work and the stored work, ifthe similarity between the to-be-recorded work and the stored work is smaller than the similarity threshold value, the to-be-recorded work and author information are stored, a user can conveniently input personal information and work information through a block chain, and therefore copyright protection is achieved.

The invention discloses a video processing method, a device, equipment and a medium, is applied to the technical field of encryption, and is used for solving the problems that a video encryption and decryption method in the prior art is relatively high in calculated amount and resource consumption and relatively low in encryption and decryption efficiency. The method specifically comprises the steps that a server encrypts metadata in a video file to obtain an encrypted video file; and a client acquires the encrypted video file from the server, decrypts the encrypted metadata in the encrypted video file and then decodes and plays the encrypted metadata. Thus, by encrypting the metadata in the video file, copyright protection of the video file can be realized, the data volume of the metadatais relatively small, the calculation amount during encryption and decryption of the metadata is relatively small, the encryption and decryption efficiency is relatively high, and occupied processingresources are relatively few.

The invention discloses a glass-less 3D video encryption method based on digital watermark encryption and a system. The method comprises steps that, step 1, randomized numbers are combined to form an original digital watermark in a random arrangement mode, and the original digital watermark is divided into m sub digital watermarks randomly; step 2, the m sub digital watermarks are respectively embedded in each viewpoint image of an two-dimensional frame image to acquire the watermark encryption two-dimensional frame image; step 3, step 1 and the step 2 are cycled till watermark encryption for all two-dimensional frame images is carried out, and the watermark encryption two-dimensional frame images are converted into glass-less 3D videos; and step 4, sub digital watermarks of viewpoint images included by glass-less 3D video frame images are extracted to acquire original digital watermarks. The method has properties of excellent robustness and invisibility, glass-less 3D videos can be rapidly and conveniently encrypted, copyright protection for the glass-less 3D videos can be further realized, and the video playing and displaying effects are not damaged.

The invention provides a method for limiting protected data in a storing device from being copied to a personal computer (PC) end. The method includes that the protected data is copied to the storing device with a normal method; the storing device performs address analysis and recording storage on the protected data; the storing device detects a data reading command sent by the PC end and an address of data needing to be read when the storing device is connected with the PC end; the storing device compares the address required by the PC end to be accessed with an address of the protected data which are recorded and stored; and if the address required to be accessed is located in the address of the data recorded and stored, the data are transmitted to the PC end after being modified, and otherwise, the data are directly read and transmitted to the PC end. The method for limiting the protected data in the storing device from being copied to the PC end is simple to achieve, convenient to use, and dispensed with a complex authorization mechanism. The storing device can achieve the data copy limiting only through the method of firmware modifying, hardware modifying is not required, and hardware cost is not increased.