计算机科学

计算机科学 ›› 2026, Vol. 53 ›› Issue (5): 446-452.doi: 10.11896/jsjkx.251100040

• 信息安全 • 上一篇    

基于PU分割模式和运动向量的HEVC信息隐藏算法

殷和民1, 张英男1,2,3, 李军1,2, 张严哲1   

  1. 1 武警工程大学密码工程学院 西安 710086
    2 武警部队网络与信息安全重点实验室 西安 710086
    3 武警工程大学重点实验室 西安 710086
  • 收稿日期:2025-11-10 修回日期:2025-12-13 发布日期:2026-05-08
  • 通讯作者: 张英男(zyn583@163.com)
  • 作者简介:(yhm2571@163.com)
  • 基金资助:
    国家自然科学基金(62202496)

HEVC Information Hiding Algorithm Based on PU Partition Modes and Motion Vectors

YIN Hemin1, ZHANG Yingnan1,2,3, LI Jun1,2, ZHANG Yanzhe1   

  1. 1 College of Cryptography Engineering, Engineering University of PAP, Xi’an 710086, China
    2 Key Laboratory of Network and Information Security of PAP, Xi’an 710086, China
    3 Key Laboratory of CTC&IE, Engineering University of PAP, Xi’an 710086, China
  • Received:2025-11-10 Revised:2025-12-13 Online:2026-05-08
  • About author:YIN Hemin,born in 1998,postgra-duate.His main research interests include video steganography technology,and so on.
    ZHANG Yingnan,born in 1990,Ph.D,associate professor.His main research interests include digital watermarking,information hiding,steganalysis,and signal processing.
  • Supported by:
    National Natural Science Foundation of China(62202496).

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摘要： 互联网平台上视频用户日益增多,高效视频编码(High Efficiency Video Coding,HEVC)标准广泛应用,结合HEVC标准的隐写术和隐写分析不断发展。为提高嵌入的安全性,提出了一种利用预测单元(Prediction Unit,PU)分割模式和运动向量(Motion Vector,MV)嵌入信息的算法,多种载体元素有助于分散嵌入扰动,拓展嵌入空间。PU分割模式域按照PU分割模式数量结构定义二进制映射规则,隐写视频能够保持固有的PU分割模式分布规律;运动向量域预选修改后仍具备MV局部最优性的运动向量差(Motion Vector Difference,MVD)作载体。两个域都使用校验网格码(Syndrome Trellis Codes,STC)自适应寻找嵌入扰动最小的路径。实验结果表明,所提算法能保持良好的视频质量,隐写分析抵抗能力强,嵌入容量理想。

关键词: 信息隐藏, 高效视频编码, PU分割模式, 运动向量, 校验网格码

Abstract: With the increasing number of video users on Internet platforms,the high efficiency video coding(HEVC) standard is widely applied,steganography and steganalysis techniques based on the HEVC standard continue to develop.To enhance embedding security,this paper proposes an algorithm that utilizes prediction unit(PU) partition modes and motion vectors(MV) as carriers,dispersing embedding perturbation features while expanding the available embedding space.The PU partition mode domain defines binary mapping rules according to the quantitative structure inherent in the PU partition modes themselves,while the distortion function takes into account cumulative inter-frame errors,allowing the stego video to maintain the intrinsic distribution pattern of PU partition modes.In the motion vector domain,motion vector differences(MVD) that retain local optimality after preselected serve as carriers,with the distortion function considering both video quality and coding cost.Both domains employ syndrome trellis codes(STC) to adaptively find paths that minimise embedding disturbances.Experimental results demonstrate that the proposed algorithm maintains high video quality,exhibits strong resistance to steganalysis,and achieves an ideal embedding capacity.

Key words: Information hiding, High efficiency video coding(HEVC), PU partition mode, Motion vector, Syndrome trellis code(STC)

中图分类号: 

  • TP391
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