Journal of Shandong University(Engineering Science) ›› 2022, Vol. 57 ›› Issue (5): 66-73.doi: 10.6040/j.issn.1671-9352.2.2021.013

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Reversible data hiding in motion vector based on regression prediction

NING Zhi-qiang1, PAN Feng1,2, NIU Ke1,2*, CHEN Pei1   

  1. 1. College of Cryptographic Engineering, Engineering University of PAP, Xian 710086, Shaanxi, China;
    2. Key Laboratory of Network and Information Security of the PAP, Xian 710086, Shaanxi, China
  • Published:2022-06-21

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Abstract: Aiming at the problem that the existing video data hiding algorithm based on motion vector affects the visual quality after video decoding and the bit rate increases too much, a reversible data hiding algorithm based on motion vector is proposed. The algorithm fine-tunes the difference between the predicted motion vector and the real motion vector, and embeds secret data in the lowest bit of the difference to realize the lossless recovery of the motion vector at the decoding end. Compared with the previous data hiding algorithms based on motion vectors, while ensuring good video quality and stable embedding capacity, the bit rate expansion is reduced by an average of 28.77%.

Key words: data hiding, motion vector, H.264, multiple linear regression

CLC Number: 

  • TP309
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