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Video steganalysis method based on inter-frame prediction mode reply characteristic detection

A technology of inter-frame prediction mode and video steganography, which is applied in the sub-field of information hiding, and can solve problems such as inter-frame prediction mode video detection and analysis methods that have not yet appeared

Inactive Publication Date: 2018-02-09
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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Problems solved by technology

[0005] After a patent search, no detection and analysis method for inter-frame prediction mode video steganography has yet appeared in the field of the present invention

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  • Video steganalysis method based on inter-frame prediction mode reply characteristic detection
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  • Video steganalysis method based on inter-frame prediction mode reply characteristic detection

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Embodiment Construction

[0070] The following specific examples are combined with the attached image 3 The present invention will be further described.

[0071] The video steganalysis method based on the inter-prediction mode response feature detection using the inter-prediction mode state transition matrix proposed by the present invention, the specific operation details are as follows:

[0072] 1) Calibration video preparation: Analyze the coding parameters (code rate, frame rate, quantization parameter, coding level, etc.) of the H.264 / AVC compressed video to be tested, and recompress the video to be tested according to the obtained coding parameters to obtain the calibration video.

[0073] 2) Division of video frame groups to be tested: the video to be tested is divided into several frame groups, each frame group is composed of continuous video frames, and any video frame belongs to and only belongs to a certain frame group.

[0074] 3) Calibration video frame group division: According to the frame grou...

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Abstract

The invention relates to a video steganalysis method and apparatus based on inter-frame prediction mode reply characteristic detection. The method comprises the following steps: performing recompression after decoding a to-be-tested compression video to obtain a calibration video; dividing the to-be-tested compression video and the calibration video into multiple frame groups; locating a corresponding frame group in the calibration video for a certain frame group in the to-be-tested compression video, and then analyzing the inter-frame prediction mode of related macro blocks in the certain frame group and a corresponding frame group; constructing a state transition matrix of the inter-frame prediction mode, and extracting preset steganalysis characteristics of the certain frame group by using the state transition matrix; and extracting the steganalysis characteristics of all frame groups of the to-be-tested compression video; and respectively performing steganalysis classification judgment on each frame group in the to-be-tested compression video by using a classifier based on the preset steganalysis characteristics. By adoption of the video steganalysis method and apparatus, the video steganalysis based on the inter-frame prediction mode can be effectively detected, the video steganalysis method and apparatus can be promoted to other video encoding frameworks easily, and characteristic customization can be performed according to the application scenes and the actual demands.

Description

Technical field [0001] The invention relates to a video steganalysis (VideoSteganalysis) method under the H.264 / AVC video coding standard, in particular to a video steganalysis method based on the detection of inter-frame prediction mode response characteristics and its application in digital media security protection The method belongs to the sub-field of information hiding in the field of information security technology. Background technique [0002] Modern information hiding technologies mainly include steganography, steganalysis and digital watermarking. Steganography mainly studies how to embed secret information into digital multimedia files such as digital images, videos, audios, etc., so that the generated steganographic files will not cause suspicion or detection by third parties when they are transmitted in open channels, so as to achieve the purpose of covert communication; The analysis mainly uses methods such as feature engineering and machine learning to make stega...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/467H04N19/52H04N21/835H04N19/176
CPCH04N19/176H04N19/467H04N19/52H04N21/835
Inventor 张弘曹纭赵险峰
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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