Video steganography analysis method based on space-time domain local binary pattern

Abstract

The invention discloses a video steganography analysis method based on a space-time domain local binary pattern. The video steganography analysis method includes step 1, classifying each frame in a video sequence to be analyzed by taking 8x8 blocks as a unit according to regional activity classifying standards; step 2, respectively establishing three-dimensional orthogonal planes, containing time-space coordinate axis, corresponding to classifying result, and making statistic analysis on LBP histograms of different three-dimensional orthogonal planes corresponding to each area in the classifying result; step 3, introducing a concept of activity factor, and enabling the activity factor and the corresponding LBP histograms to be in operation to acquire ST_LBP features; step 4, utilizing a Fisher Ratio method for feature selection, and realizing classifying recognition of steganographic information. Compared with the prior art, the video steganography analysis method has the advantages that by introducing the activity factor, interference, on detection result, caused by movement of an activity area object can be lowered, so that detection effectiveness is improved effectively; limitation of feature dimension is avoided, and valuing of radius R and field point number P in an LBP definition can be further expanded, so that relevance of space-time domain of the video sequence is utilized more effectively.

Description

technical field [0001] The invention relates to the field of multimedia information security, in particular to a video steganalysis method based on a local binary mode in space-time domain. Background technique [0002] With the rapid development of digital multimedia and network technology, digital products have brought various conveniences to people's daily life. At the same time, various information security issues emerge in an endless stream. As a research hotspot in the field of information security, information hiding technology is to embed secret information into digital carriers in a way that does not attract the attention of third parties, so as to achieve copyright protection, covert communication and other purposes. Video information hiding means that video is used as a carrier signal to transmit secret information. As its countermeasure technology, video steganalysis aims to reveal the existence of secret information. It starts late and is difficult. It is of g...

AI Technical Summary

Problems solved by technology

Another video steganalysis method proposed by Pankajakshan et al., although it utilizes the temporal and spatial correlation of video sequences to a certain extent, it does ...

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