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Method and system for hiding reversible information of dual-channel audio based on two-dimensional histogram

A two-dimensional histogram and information hiding technology, applied in the field of reversible information hiding of binaural audio, can solve problems affecting the fidelity of the original audio

Active Publication Date: 2021-07-06
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The inventors found that the technical problem in the prior art is: in the process of reversible information hiding, the original audio needs to be changed to a large extent, which affects the fidelity of the original audio

Method used

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  • Method and system for hiding reversible information of dual-channel audio based on two-dimensional histogram
  • Method and system for hiding reversible information of dual-channel audio based on two-dimensional histogram
  • Method and system for hiding reversible information of dual-channel audio based on two-dimensional histogram

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Embodiment 1

[0040] This embodiment provides a two-channel audio reversible information hiding method based on a two-dimensional histogram;

[0041] Such as figure 1 As shown, the two-channel audio reversible information hiding method based on two-dimensional histogram, including:

[0042] S101: Acquire reversible information and a binaural audio file;

[0043] S102: For elements at the same position in different channels, respectively calculate the prediction error value of the left channel and the prediction error value of the right channel; construct the prediction error based on the prediction error value of the left channel and the prediction error value of the right channel right;

[0044] S103: Construct a prediction error histogram based on the prediction error pair;

[0045] S104: Adaptively move the prediction error histogram, and embed the reversible information to obtain binaural audio with the reversible information hidden.

[0046] As one or more embodiments, the S101: A...

Embodiment 2

[0120] This embodiment provides a two-channel audio reversible information hiding system based on a two-dimensional histogram;

[0121] Two-dimensional histogram-based reversible information hiding system for binaural audio, including:

[0122] an acquisition module configured to: acquire reversible information and a binaural audio file;

[0123] A prediction error pair building block, which is configured to: calculate the prediction error value of the left channel and the prediction error value of the right channel for elements at the same position in different channels; based on the prediction error value of the left channel and the right channel The prediction error value of the road, construct the prediction error pair;

[0124] a histogram building block configured to: build a forecast error histogram based on the forecast error pair;

[0125] The hidden module is configured to: adaptively move the prediction error histogram, perform reversible information embedding, an...

Embodiment 3

[0130] This embodiment also provides an electronic device, including: one or more processors, one or more memories, and one or more computer programs; wherein, the processor is connected to the memory, and the one or more computer programs are programmed Stored in the memory, when the electronic device is running, the processor executes one or more computer programs stored in the memory, so that the electronic device executes the method described in Embodiment 1 above.

[0131] It should be understood that in this embodiment, the processor can be a central processing unit CPU, and the processor can also be other general-purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate array FPGA or other programmable logic devices , discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, o...

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Abstract

The invention discloses a method and system for hiding reversible information of a dual-channel audio based on two-dimensional histogram. The method comprises the following steps of: acquiring reversible information and a dual-channel audio file; respectively calculating a prediction error value of a left channel and a prediction error value of a right channel for elements at the same position of different sound channels; constructing a prediction error pair based on the prediction error value of the left channel and the prediction error value of the right channel; constructing a prediction error histogram based on the prediction error pair; and adaptively moving the prediction error histogram, and embedding the reversible information to obtain a dual-channel audio with hidden reversible information. According to the invention, the modification degree of an original sample due to the embedded information is reduced while an embedding capacity is improved. Experiments show that compared with an existing embedding method, the method has better embedding performance in the aspects of audio fidelity and capacity under the same capacity.

Description

technical field [0001] The invention relates to the technical field of audio processing, in particular to a two-channel audio reversible information hiding method and system based on a two-dimensional histogram. Background technique [0002] The statements in this section merely mention the background technology related to the present invention and do not necessarily constitute the prior art. [0003] The purpose of reversible data hiding (RDH) is to embed secret information into the covered image by slightly modifying the pixels of the covered image, so as to realize functions such as digital steganography, secret communication and copyright protection. What's more, it can not only extract the embedded data completely, but also restore the host signal without damage. Therefore, copyright authentication and covert communication algorithms based on reversible data hiding have broad application prospects in some special fields such as military affairs and medical treatment. ...

Claims

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Application Information

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IPC IPC(8): G10L19/018
CPCG10L19/018
Inventor 马宾侯金程马睿和徐建王春鹏李健
Owner QILU UNIV OF TECH
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