Information embedding system and information extracting system using 2D/3D videos

Abstract

The invention discloses an information embedding method using 2D / 3D videos. The method includes the steps that the 2D / 3D videos are obtained, embedding control information, a message and a secret key are received, wherein the embedding control information, the message and the secret key are input by a user, the message input by the user is packaged to generate a plurality of bit strings serving as dense segments, the embedding control information is packaged to generate a bit string, the bit strings generated in the step (3) are encrypted by using an encryption algorithm to generate encrypted and embedded control information dense segments, a counter is set with i=1, the mark CI_flag used for marking first-time complete embedment of the embedding control information is set to be zero, the mark Cnt_embed used for marking the number of times for repeated embedment of the information is set to be zero, the i frame of the 2D / 3D videos is decoded, and whether the decoded i frame meets the processing condition of a control information embedding algorithm or not is judged. The technical problems that in the prior art, a steganography algorithm can not directly provide support for a covert communication system and can not be directly applied to the 2D / 3D videos are solved.

Description

technical field [0001] The invention belongs to the fields of information steganography, H.264 encoding and decoding technology, and computer network communication, and more specifically relates to an information embedding system and an information extraction system using 2D / 3D video. Background technique [0002] In order to conduct covert communication between the sender and the receiver without revealing traces, researchers at home and abroad have proposed a method of using steganographic algorithms to control the process of information hiding to achieve secret communication. In the currently known patent authorizations, the solutions related to the covert communication system can be mainly divided into two categories. The first category is mainly specific steganography and steganalysis algorithms, and does not discuss the complete implementation of the concealment system. After searching, there are currently about 66 related Chinese patents and about 115 world patents r...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides an information embedding method and system using 2D / 3D video. Support issues and technical issues where existing solutions cannot be directly applied to 2D and 3D video

Images