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Multimedia Synthetic Steganalysis Method Based on Window Hypothesis Testing

A technology of hypothesis testing and steganalysis, applied in the field of information hiding, can solve the problems of ineffective control of the false alarm rate of steganalysis conclusions, long running time, etc., to reduce running time, reduce missed detection rate, and small data volume Effect

Active Publication Date: 2017-09-22
XIAMEN UNIV
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Problems solved by technology

[0010] The present invention aims to provide a multi-media comprehensive steganalysis method based on window-type hypothesis testing to solve the problem that the existing steganalysis method cannot effectively control the false alarm rate of the steganalysis conclusion and the running time is relatively long

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  • Multimedia Synthetic Steganalysis Method Based on Window Hypothesis Testing
  • Multimedia Synthetic Steganalysis Method Based on Window Hypothesis Testing
  • Multimedia Synthetic Steganalysis Method Based on Window Hypothesis Testing

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Embodiment Construction

[0032] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention.

[0033] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. The overall process framework of the present invention is as figure 1 As shown: S1. Prepare the original text set and hidden text set, and divide them into training set and verification set, which are the basis for subsequent processing; S2. By extracting features from the training set, train a predictor to provide classification basis for steganal...

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Abstract

The invention relates to a multi-media comprehensive steganalysis method based on a window-type hypothesis test, comprising the steps of: S1 preparing an original text set and a steganographic set, and dividing a training set and a verification set; S2 extracting features from the training set, and training to obtain a predictor; S3 puts the verification set into the predictor to get the output, fits the probability distribution model according to the output, and uses the output to estimate the parameters of the selected model; S41 samples the test set according to different window sizes; S42 according to the probability selected in step S3 Distribution model and parameters to obtain the null hypothesis and alternative hypothesis of hypothesis testing; S43 determines the judgment conditions of hypothesis testing according to the false alarm rate and missed detection rate specified by the user, combined with the sampling scale of the window, and performs statistical inference and window type hypothesis testing ; S5 conducts comprehensive analysis and decision-making on the results of the window hypothesis test. The invention can detect and determine whether steganographic information is contained in samples, reduce the false alarm rate and missed detection rate of comprehensive steganographic analysis, and improve the operation speed of steganographic analysis.

Description

technical field [0001] The invention relates to a multi-media comprehensive steganalysis analysis method based on a window type hypothesis test, which belongs to the sub-field of information hiding technology in the field of information security technology. Background technique [0002] Steganography refers to the technology of embedding information in the carrier signal to achieve covert communication. Nowadays, with the rapid development of multimedia technology, it is very common to create, edit, store and transmit multimedia files, so steganography using multimedia as a carrier has been extensively studied. Steganography hides the fact of covert communication and is easy to deny. Even the most effective steganalysis method cannot fully confirm the existence of steganography. At present, there are hundreds of steganography tools suitable for mobile phones and computers, which are easy to obtain and use. If they are used by criminals to evade the supervision of relevant d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00G10L19/018H04N1/32G06K9/62
CPCH04N1/32144G06T1/0021G10L19/018G06F18/214G06F18/24
Inventor 黄炜郭宏洲
Owner XIAMEN UNIV
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