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Copyright protection method, equipment and system based on video frequency content discrimination

A copyright protection, video content technology, applied in the direction of program/content distribution protection, special data processing applications, instruments, etc., can solve problems such as unsupervised

Inactive Publication Date: 2009-01-07
VIMICRO CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, illegal users can use various methods to make the decrypted content pirated or put it on the Internet, so that it cannot be supervised

Method used

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  • Copyright protection method, equipment and system based on video frequency content discrimination
  • Copyright protection method, equipment and system based on video frequency content discrimination

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Experimental program
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Embodiment Construction

[0011] figure 2 It is a schematic diagram of the copyright protection method based on video content identification of the present invention.

[0012] Such as figure 2 As shown, firstly, the video content features are extracted for the content to be protected. There are many methods for extracting features of video content. Here is a list of features based on time-varying brightness change vectors. The method is as follows:

[0013] ■Divide each frame of video into several blocks, and count the brightness value in the block;

[0014] ■ Calculate the luminance value change vector of the corresponding block between the two frames of the unit time interval;

[0015] ■In a certain time range, the 2-dimensional vector formed by the vector of the brightness value change between the frames of the unit time interval is used as the feature value.

[0016] Certainly, the change of the position of the person or the vector of the change of the image texture between the frames of the...

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PUM

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Abstract

The invention discloses video playing equipment, a method and a system; even if an illegal user produces the decrypted content into a pirate version or puts on the Internet, by adopting the equipment, the pirate version can be identified and the users can be supervised and led to use legal copies. The video playing equipment of the invention comprises a video content characteristics extraction module and a copyright protecting property detecting module. While the video is played, the video content characteristics extracting module identifies the characteristics of the video content and the copyright protecting property detecting module compares the characteristics with a video characteristics database; according to the compared result, the copyright protecting property is found out form the video characteristics database and the video is decided to be played or not according to the copyright protecting property.

Description

technical field [0001] The invention relates to a copyright protection method, device and system. Background technique [0002] The traditional method of copyright protection is to encrypt the content. figure 1 It is a schematic diagram of a prior art copyright protection method. As shown in the figure, the copyright protection method includes encrypting the video content that needs to be protected, copying and distributing the encrypted video content, and the user must play it in a playback device with decryption function and obtain the decryption key to achieve copyright protection. the goal of. [0003] If it can be decrypted, it means that you can watch it if you have the copyright, and if you can’t decrypt it, it means you can’t watch it without the copyright. However, illegal users can use various means to make the decrypted content pirated or put it on the Internet, so that it cannot be supervised. Contents of the invention [0004] The purpose of the present in...

Claims

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Application Information

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IPC IPC(8): G06F21/00G06F17/30G06F21/10
Inventor 谢律
Owner VIMICRO CORP
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