Information Hiding Based on Matrix Embedding and Motion Vector in the HEVC Standard

Document Type : Original Article

Authors

1 Department of Computer Engineering, Mobarakeh branch, Islamic Azad University, Mobarakeh, Isfahan, Iran

2 Department of Computer Engineering, Dolatabad branch, Islamic Azad University, Isfahan, Iran

Abstract

With the rapid development of information, the security of information has gained more and more attention. Information hiding is a useful method to protect secret data through the internet. The High Efficiency Video coding (HEVC) standard is the latest video compression standard ever which can be used to carry hidden data. This paper presents a new method for hiding data in compressed videos using the HEVC standard. In the proposed method, the motion vectors of the inter prediction are used as data carriers. A set of motion vectors of an prediction unit in the HEVC standard is selected to carry a string of hidden data and only a component of that set increases or decreases by one unit, which does not change the peak signal-to-noise ratio (PSNR) significantly, and bit rate does not increase significantly after embedding of hidden data. The results of the experiments demonstrate that the average signal-to-noise ratio decreased by 0.21 decibel and the bit rate increased by an average of 0.76%. Comparison of the proposed method with other recently suggested methods indicates the superiority of the proposed method.

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References

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Advanced Signal Processing
Volume 3, Issue 2 - Serial Number 4
December 2019
Pages 213-225

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