...
De
vices
(SSD)
Hammamet,
Tunisia,
Marc
h
18-21,
2013
SSD'13 1569695081
A Robust Multiple Watermarking Scheme
Based on the DWT
Ouazzane Hana, Mahersia Hela, Hamrouni Kamel
Université ...
d’insertion
optimal,” Coresa03, 2003.
[9]
S.
Rastegar,
F.
Namazi,
K.
Yaghmaie
and
A.
Aliabadian,
“Hybrid
watermarking
algorithm
based
on
singula...
... original
watermark to check the watermark presence in the attacked
image. For objective examination, they calculate the similarity
ratio (SR) between each extracted watermark and the original
one ... present a new watermarking scheme based
on the DWT. This transform is commonly used in digital
watermarking because of its advantages. Keyvanpour and
Merrikh-Bayat pro...
... create a master watermark share and a secret wa-
termark share. The watermark share is kept secret by the owner. The master watermark share is embedded into the host image
to generate a watermarked ... watermarked image based on the human visual model. The proposed method conforms to all necessary conditions
of an image watermarking technique. After the watermarked i...
... to the lattice factorization in (1), the
factorization in (4)isageneralfactorizationthatcoversall
linear-phase paraunitary filter banks with M even and length
L
= MN.
Based on our analysis, there ... Naval Air War-
fare Center Weapons Division ( NAWCWD) at China Lake, Calif.
He currently serves as an Associate Editor of the IEEE Transactions
on Signal Processing as well as IEEE Tra...
... process. The other drawback concerns
the accumulation of the same approximation error in
the temporal axis generating a drift effect.
During our experiments, the first attack gave better results
than the ... publications that have appeared as journal papers or pro-
ceeding articles, 3 book chapters, and 3 international patents. He
gave several tutorials on digital watermarking...
... at each dialogue
turn. On the other hand, context elements contain
all the additional information (explanations and
descriptions) appearing in the scripts.
39
mistakenly stored in the data ... basic
elements are extracted from the scripts: speakers,
utterances and context. The speaker and utterance
elements contain information about the characters
who speak and what th...
... Transform: Algorithms,
Advantages, Applications, Academic Press, Boston, Mass, USA,
1990.
[17] M. Barni, F. Bartolini, and A. Piva, “Improved wavelet -based
watermarking through pixel-wise masking,” ... that the computational costs
required for calculating the sum of difference is much smaller
than that of the detection operation.
For a comparison of the computational complexitie...
... of the crosstalk cancellation
algorithm is crucial for practical applications. To reduce the
computational cost, this paper presents a novel crosstalk
cancellation system based on common-acoustical ... computational efficiency [23,
24]. The acoustic paths from loudspeakers to ears are approx-
imated with CAPZ models, then the crosstalk cancellation
filters are designed based on...
... obtained from (32)and
Gaussian AoA model is used).
5.2. Spatial Correlation Model-Gaussian Angle of Arrival
(AoA). In this example, the spatial correlation among ele-
ments of the BS antenna array ... user-
channels. The motivation behind this assumption is that
the knowledge of instantaneous channel information can be
available at the BS only through the feedback from users.
The...
... detection scheme:
(a) Training stage and (b) Testing stage.
• Training stage: a normal database, an HMM
model and fuzzy sets are built from training
data.
-
Normal database: The database is an ... can be seen from Table 1 that the false
positive rate of the fuzzy -based detection
scheme is much lower than that of the normal
database scheme [4]. For example, the fuz...