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Audio digital watermarking technology based on cross-media perception

A digital watermarking and cross-media technology, applied in the field of information security, can solve problems such as the vulnerability of the reversible audio watermarking scheme, the inability to extract the watermark, and the reversible audio watermarking without considering the robustness of the watermark, etc.

Pending Publication Date: 2022-03-29
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, reversible audio watermarking techniques generally do not consider the robustness of watermarking, so most of the existing reversible audio watermarking schemes are fragile and cannot correctly extract watermarks from audio watermarks attacked by noise or signal processing operations.

Method used

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  • Audio digital watermarking technology based on cross-media perception
  • Audio digital watermarking technology based on cross-media perception
  • Audio digital watermarking technology based on cross-media perception

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0034] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other structures or combinations thereof.

[0035] A kind of audio digital watermark technology based on cross-media perception of the present embodiment, comprises the following steps:

[0036] 1) According to figure 1 As shown in the structure of , the original audio file is divided into several frames, where each frame has M sampling point groups, each sampling point group has n+1 sampling points, and n is the order of difference.

[0037] 2) Traverse each frame of the audio file, traverse each sampling point group of each frame, and calculate the high-order difference d of the kth sampling point group in the lth frame according...

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Abstract

The invention discloses a cross-media perception audio digital watermarking technology, which comprises the following steps of: firstly, dividing an original audio file into a plurality of frames, then calculating high-order differential statistics in one frame, and constructing a histogram of the high-order differential statistics; the histogram can be regarded as a robustness feature and can be shifted to embed a watermark sequence. By hiding the key, the watermark can be embedded into the audio file by moving the histogram. In the watermark extraction process, the watermark can be correctly extracted from the offset histogram by hiding the secret key. In addition, through inverse operation of histogram shifting, lossless recovery of the original audio file can be realized.

Description

technical field [0001] The invention relates to the field of information security, in particular to an audio digital watermarking technology based on cross-media perception. Background technique [0002] With the rapid development of Internet technology, copyright, personal privacy and protection of digital products have become the first problems to be solved in digital product publishing. Digital watermarking technology can effectively solve this problem. Reversible watermarking technology is a digital watermarking technology that uses the redundancy of digital multimedia information to embed watermark information (such as digital multimedia carrier feature information, copyright information, etc.) into a digital multimedia carrier, and extracting watermark information can be restored completely without distortion. Original carrier recipient. This technology realizes content identification, integrity authentication and copyright protection of digital multimedia, and is wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/018G10L19/02
CPCG10L19/018G10L19/0204
Inventor 李鑫彭德中王骞刘杰张利君银大伟蒋瑞付俊英
Owner SICHUAN UNIV