A robust without intra-frame distortion drift data hiding algorithm based on H.264/AVC

A robust without intra-frame distortion drift data hiding algorithm based on H.264/AVC
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基于H.264/AVC的鲁棒无帧内畸变漂移数据隐藏算法

DOI:
10.1007/s11042-013-1393-0
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发表时间:
2014-09
影响因子:
3.6
通讯作者:
Liu, Jian
Liu, Jian
中科院分区:
计算机科学4区
文献类型:
--
作者:
Liu, Yunxia;Li, Zhitang;Ma, Xiaojing;Liu, Jian

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提出了一种改进的基于BCH校正子码(BCH码)的无失真漂移的稳健数据隐藏算法。BCH码技术可以纠正网络传输、丢包、视频处理操作、各种攻击等引起的错误比特,在数据隐藏之前使用BCH码对嵌入的数据进行编码。本文提出的无失真漂移技术是利用4 × 4离散余弦变换块的若干对系数来累积嵌入引起的失真,并利用帧内预测方向来避免失真漂移。理论分析和实验表明,新的数据隐藏算法具有更强的鲁棒性,有效地避免了帧内失真漂移,获得了较高的视觉质量。
This paper presents an improved robust data hiding algorithm based on BCH syndrome code (BCH code) technique and without distortion drift technique. The BCH code technique, which can correct the error bits caused by network transmission, packet loss, video-processing operations, various attacks, etc., encodes the embedded data by using BCH code before data hiding. The without distortion drift technique in this paper is that we exploit several paired-coefficients of a 4 × 4 discrete cosine transform (DCT) block to accumulate the embedding induced distortion, and the directions of intra-frame prediction are utilized to avert the distortion drift. It is proved analytically and shown experimentally that the new data hiding algorithm can get more robustness, effectively avert intra-frame distortion drift and get high visual quality.
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