Periodic signaling scheme in oblivious data hiding

L. Gang, A. N. Akansu, M. Ramkumar

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


In the oblivious watermarking, information is extracted without reference to the original host signal, whose energy is much larger than that of the watermark signal. Suppressing host noise is a great concern. Some non-linear embedding methods, e.g. Quantization Index Modulation (QIM) can greatly suppress the host noise. In this method, the signaling is periodic. In this paper we analyze the Maximum Likelihood (ML) detector for the QIM signaling scheme, and compare the error probability with hard decision detector. Based on it, a new periodic signaling scheme is proposed and its optimum and suboptimal detection is derived. Through analysis and simulation, we demonstrate its advantage in term of PE-SNR over the existing methods.

Original languageEnglish (US)
Pages (from-to)1851-1855
Number of pages5
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
StatePublished - 2000
Event34th Asilomar Conference - Pacific Grove, CA, United States
Duration: Oct 29 2000Nov 1 2000

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Computer Networks and Communications


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