Method of embedding invisible digital watermarking into streaming media, and apparatus and system thereof

A watermark embedding and digital watermarking technology, which is applied in image communication, selective content distribution, electrical components, etc., can solve the problems affecting the quality of the film and the deterioration of the film effect, and achieve the effect of copyright, traceability and protection

Inactive Publication Date: 2014-06-18
AEROSPACE INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A common way is to put "XX Satellite TV" or "XX Network" on the upper left or right corner of the film. Although this proves that the media is indeed owned by the TV or the XX Network, it also brings two other problems : After marking, the quality of the original film is affected; secondly, many pirates do mosaic processing at the mark, and th...

Method used

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  • Method of embedding invisible digital watermarking into streaming media, and apparatus and system thereof
  • Method of embedding invisible digital watermarking into streaming media, and apparatus and system thereof
  • Method of embedding invisible digital watermarking into streaming media, and apparatus and system thereof

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Embodiment 1

[0024] The processing flow of a method for embedding an invisible digital watermark into streaming media provided by this embodiment is as follows: figure 1 As shown, the following processing steps are included:

[0025] Step 11: Use a hash algorithm to perform hash processing on the binary data of the above watermark information to obtain a hash value. At the sending end, use the above private key to sign the hash value to obtain the signature value.

[0026] The RSA public key cryptosystem is currently widely used, including a public key and a private key. The public key is public, and the private key needs to be kept secret. The data can be signed by the private key, and the signature value can be verified by the public key to realize the non-repudiation of the signature.

[0027] Use the RSA algorithm to generate a public-private key pair, the public key is open to everyone, and the private key is kept secret. Read the binary data of the watermark information that needs...

Embodiment 2

[0052] The specific structure of a device for embedding invisible digital watermarks into streaming media provided by this embodiment is as follows: figure 2 As shown, the following modules are included:

[0053] The signature value acquisition module 21 is used to generate a pair of public key and private key using the public key cryptosystem, and use the private key to sign the data of the watermark information to obtain the signature value;

[0054] The watermark embedding position acquisition module 22 is used for concatenating the identification of the streaming media file with the public key, the signature value and, by hash calculation, obtaining the watermark embedding position in each non-key frame of the streaming media file ;

[0055] The embedding processing module 23 is configured to sequentially embed the data of the watermark information into the watermark embedding position in each non-key frame at the sending end according to the set information embedding ru...

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Abstract

The embodiment of the present invention provides a method of embedding invisible digital watermarking into streaming media, and an apparatus and a system thereof. The method mainly comprises the steps of: utilizing a public key cryptosystem to generate a public key and a private key in pairs, and using the private key to perform signature processing on watermarking information data to obtain a signature value; cascading the identification of a streaming media file with the public key and the signature value and obtaining the watermarking embedding position in each non-critical frame of the streaming media file through a Hash algorithm; and successively embedding the watermarking information data into the watermarking embedding position in each non-critical frame by a sending terminal in dependence on a set information embedding rule. According to the embodiment of the invention, under the condition of not influencing user visual experience, the sending terminal embeds the signature value of the watermarking information into the streaming media through the public key cryptosystem, and a receiving terminal analyzes the signature value of the watermarking information in the streaming media, thereby realizing tracing and protection of the copyright of the streaming media.

Description

technical field [0001] The invention relates to the technical field of watermark embedding, in particular to a method, device and system for embedding invisible digital watermarks into streaming media. Background technique [0002] With the rapid development of the Internet, the problem of piracy has become more and more serious. In the case of tracing piracy, there is no particularly good way. The most common way is to put a mark on the media. A common way is to put "XX Satellite TV" or "XX Network" on the upper left or right corner of the film. Although this proves that the media is indeed owned by the TV or the XX Network, it also brings two other problems : After marking, the quality of the original film is affected; secondly, many pirates do mosaic processing at the mark, and then these films can still be pirated and used. Therefore, two problems need to be solved. The embedded information should not affect the viewing of the film. Secondly, if the pirates remove these...

Claims

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Application Information

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IPC IPC(8): H04N21/8358
Inventor 丁瑶于志强舒南飞王杰斌唐凌吴渊王芳
Owner AEROSPACE INFORMATION
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