Tamper recovery algorithm for digital speech signal based on DWT and DCT
作者: Z. H. LiuD. LuoJ. W. HuangJ. WangC. D. Qi
作者单位: 1Shenzhen University
2Xinyang Normal University
刊名: Multimedia Tools and Applications, 2017, Vol.76 (10), pp.12481-12504
来源数据库: Springer Nature Journal
DOI: 10.1007/s11042-016-3664-z
关键词: Digital watermarkTamper recoverySpeech compressionTamper localization
原始语种摘要: It is a challenging work to design tamper recovery schemes for digital speech signal. Briefly, there are two problems need to be solved. One is that the signals used to tamper recovery are difficult to generate and embed, and the second is that it’s hard to tamper location precisely for attacked speech signal. In this paper, compression and reconstruction method based on discrete wavelet transform (DWT) and discrete cosine transform (DCT) is given, to obtain the compressed signals used to tamper recovery. And then frame number and compressed signals are embedded based on block-based method. Attacked signal can be located by frame number, and compressed signals are extracted and used to reconstruct the attacked signal. Theory analysis and experimental results indicate that the scheme...
全文获取路径: Springer Nature  (合作)
影响因子:1.014 (2012)

  • digital 数字的
  • speech 演说
  • compressed 侧扁的
  • tamper 打夯机
  • DWT 净载重吨
  • reconstruct 改建
  • compression 压缩
  • recovery 回收
  • signal 信号
  • DCT Darlington Complex Transistor