Embedding and extracting methods for video steganography information

Abstract

The invention discloses a robust method for video steganography information. The robust method comprises an embedding portion and an extracting portion. An embedding method comprises the following steps: acquiring a network video source taken as a carrier, and receiving secret information needing to be embedded of a user; distributing and processing the secret information by using a multi-secrete sharing technology; decoding a carrier video, and embedding the distributed secrete information till all information is completely embedded into the video. An extracting method comprises the following steps: acquiring a carrier video of which a portion of data tend to be lost after network transmission and the like; decoding the video and extracting the embedded secrete information; restoring the extracted information by using the multi-secrete sharing technology to obtain original secrete information. The robust method has low redundancy and high visual imperceptibility. The method is easy to apply, supports special application in the national fields of military, foreign affairs and essential business, serves for the national network space security strategy, and has a wide application environment. A technical method can be provided for video steganography, and guidance is provided for the construction of a video steganography communication platform.

Description

technical field [0001] The invention belongs to the technical field of information hiding, and more specifically relates to a method for embedding and extracting video steganographic information. Background technique [0002] In order to realize the covert communication in the process of network video transmission, so far, researchers at home and abroad have proposed many steganographic algorithms that use the network data stream (video, text, image, etc.) in the existing network for covert communication. These steganographic algorithms can be divided into two parts based on robust performance. The first part is mainly specific video steganographic algorithms that do not consider robust performance. to the impact of embedding performance and visual effects. When extracting, according to the embedding algorithm, the position suitable for the conditions is selected to extract the secret information. The second part is information hiding involving robustness, but the hidden c...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the purpose of the present invention is to provide a solution to improve the robustness of video steganography, and to solve the problem of packet loss that may occur in the process of video steganography for carrier videos containing secret information. The problem that the extraction end cannot recover the hidden information normally and the problem that the embedded information increases sharply in order to improve the robustness of video steganography

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