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Hierarchical watermark adding method and system

A watermarking and watermarking technology, applied in TV system components, selective content distribution, color TV components, etc., can solve the problem of not knowing the exact time and location of video recording, distinguishing user rights, affecting viewing, etc. To achieve the effect of convenient management of viewing rights, easy popularization, and wide range of use

Inactive Publication Date: 2015-09-16
EQUES TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, if you want to embed a digital watermark in the video so that the user can know the exact time and place of the video recording, one method is to directly add time information and coordinate information in the video, but this will affect viewing and is not conducive to effective Differentiate user permissions; another method is to embed a visually invisible weak signal (watermark) under the above video, but if the embedded watermark is maliciously tampered with by someone with intentions, it will no longer be possible to know the exact time and date of the above video recording. Place

Method used

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  • Hierarchical watermark adding method and system
  • Hierarchical watermark adding method and system

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0033] The first embodiment of the present invention relates to a method for adding hierarchical watermarks. Contains the following steps:

[0034] Add at least two levels of watermarks to the collected raw data to generate the target data required by the user;

[0035] Wherein, in the step of adding at least two levels of...

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Abstract

The invention belongs to the watermark technical field and discloses a hierarchical watermark adding method and system. The method includes the following steps that: watermarks of at least two levels are added into acquired original data, so that target data required by a user can be generated; and in a process in which the watermarks of at least two levels are added into the acquired original data, and after the addition of watermarks of each level in the watermarks of at least two levels is completed, the watermarks of each level are correlated to hierarchical data which are generated after the addition of the watermarks of each level is completed. Compared with the prior art, the hierarchical watermarks are added into the original data, so that the original data additionally have watermarks of several levels equivalently, and protection of the copyright of the original data can be better benefitted, and infringement and piracy can be prevented.

Description

technical field [0001] The invention relates to watermark technology, in particular to a method and system for adding hierarchical watermarks. Background technique [0002] With the development of network technology and multimedia technology, the exchange of multimedia information has reached an unprecedented depth and breadth. People can publish their own works through the Internet, transmit important information, conduct network trade, etc., but its side effects are also very obvious. Easier, more convenient tampering. How to take advantage of the convenience of the Internet, effectively protect intellectual property rights and realize the transmission of confidential information has received great attention from people. Therefore, the copyright protection of multimedia content has become an urgent problem to be solved. [0003] Digital watermarking is an effective way to realize copyright protection. Watermarking is to embed some information that can prove copyright own...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/913H04N21/8358
Inventor 周军
Owner EQUES TECH
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