27 search results - page 5 / 6 » Blind Detection of Spread Spectrum Flow Watermarks |
IWDW
2004
Springer
13 years 10 months ago
2004
Springer
Most of watermarking techniques are based on Wide Spread Spectrum (WSS). Security of such schemes is studied here in adopting a cryptanalysis point of view. The security is proport...
TWC
2008
13 years 3 months ago
2008
In this letter, we propose a generalized version of the window-based pseudonoise (PN) acquisition scheme verifying one or more best hypotheses rather than the best one per search w...
ISCAS
2008
IEEE
13 years 11 months ago
2008
IEEE
— This paper presents a robust watermarking method for curves that uses informed-detection. To embed watermarks, the presented algorithm parameterizes a curve using the B-spline ...
GLOBECOM
2006
IEEE
13 years 11 months ago
2006
IEEE
Abstract— This paper deals with the problem of blind multiuser detection in multirate direct-sequence code division multiple access (DS-CDMA). Direct-Sequence Spread Spectrum (DS...
IWDW
2005
Springer
13 years 10 months ago
2005
Springer
Abstract. In this paper, the security of Dither Modulation Quantization Index Modulation schemes for digital images is analyzed. Both pixel and DCT coefficient quantization schemes...