2nd International ICST Conference on Communications and Networking in China

Research Article

Rate Controlled Video Watermaking Based on Optimal DEM Codewords

  • @INPROCEEDINGS{10.1109/CHINACOM.2007.4469398,
        author={Xiaoyan Liu and Lihong Ma and Hanqing Lu and Kang Cai},
        title={Rate Controlled Video Watermaking Based on Optimal DEM Codewords},
        proceedings={2nd International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2011},
        month={7},
        keywords={Automatic control  Bit rate  Discrete cosine transforms  Frequency  Labeling  Optimal control  Power engineering and energy  Robustness  Transcoding  Watermarking},
        doi={10.1109/CHINACOM.2007.4469398}
    }
    
  • Xiaoyan Liu
    Lihong Ma
    Hanqing Lu
    Kang Cai
    Year: 2011
    Rate Controlled Video Watermaking Based on Optimal DEM Codewords
    CHINACOM
    IEEE
    DOI: 10.1109/CHINACOM.2007.4469398
Xiaoyan Liu1,*, Lihong Ma1,*, Hanqing Lu1,*, Kang Cai1
  • 1: School of Electronic Engineering, South China University of Technology National Lab. of Pattern Recognition, Inst. of Automation, Chinese Academy Of Sciences Guangzhou, China, 510641, Beijing, China 100080
*Contact email: xyliu1982@163.com, eelhma@scut.edu.cn, luhq@nlpr.ia.ac.cn

Abstract

This paper addresses the rate maintenance requirement of video watermarking and proposes a differential energy watermarking (DEM) scheme. We embed a watermark bit by shifting the energy difference between horizontal edge components and the vertical ones in a quantized luminance block within a quantization cell, and spread the slight shift over coefficients for good quality and robustness. Since a slightly changed coefficient will possibly share the same segment code and a similar code-length with its un-watermarked precedent, our method could simplify the rate allocation strategy. Experimental results demonstrate that our DEM scheme performs better on visual quality impact, capacity, robustness and rate maintenance than the DEW (Differential Energy watermarking ) scheme.