2 May 2008 Sum-SINR/sum-capacity optimal multisignature spread-spectrum steganography
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For any given digital host image or audio file (or group of hosts) and any (block) transform domain of interest, we find an orthogonal set of signatures that achieves maximum sum-signal-to-interference-plus-noise ratio (sum- SINR) spread-spectrum message embedding for any fixed embedding amplitude values. We also find the sumcapacity optimal amplitude allocation scheme for any given total distortion budget under the assumption of (colored) Gaussian transform-domain host data. The practical implication of the results is sum-SINR, sumcapacity optimal multiuser/multisignature spread-spectrum data hiding in the same medium. Theoretically, the findings establish optimality of the recently presented Gkizeli-Pados-Medley multisignature eigen-design algorithm.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lili Wei, Lili Wei, Dimitris A. Pados, Dimitris A. Pados, Stella N. Batalama, Stella N. Batalama, Michael J. Medley, Michael J. Medley, } "Sum-SINR/sum-capacity optimal multisignature spread-spectrum steganography", Proc. SPIE 6982, Mobile Multimedia/Image Processing, Security, and Applications 2008, 69820D (2 May 2008); doi: 10.1117/12.784711; https://doi.org/10.1117/12.784711

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