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81
Voted
CVPR
1996
IEEE
16 years 2 months ago
Subpixel Image Registration by Estimating the Polyphase Decomposition of Cross Power Spectrum
A method of registering images at subpixel accuracy has been proposed, which does not resort to interpolation. The method is based on the phase correlation method and is remarkabl...
Hassan Shekarforoush, Marc Berthod, Josiane Zerubi...
ICIP
2002
IEEE
16 years 2 months ago
Perceptual watermarking of non i.i.d. signals based on wide spread spectrum using side information
The theoretical foundations of data hiding have been revealed by formulating the problem as message communication over a noisy channel, i.e. the host document. In light of this de...
Christine Guillemot, Gaëtan Le Guelvouit, St&...
85
Voted
VTC
2007
IEEE
15 years 6 months ago
Distance Spectrum Calculation of Symbol Punctured Trellis Coded Modulation
— A special kind of symbol-wise puncturing is applied to the code symbols of a constituent trellis coded modulation (TCM) within two very bandwidth-efficient concatenated coding...
Axel Hof
CORR
2008
Springer
73views Education» more  CORR 2008»
15 years 20 days ago
A Spectrum-Shaping Perspective on Cognitive Radio
A new perspective on cognitive radio is presented for the case where the primary transmission is in uncoded analog form. The basic idea is to exploit signal-to-noise ratio margins ...
Wenyi Zhang, Urbashi Mitra
161
Voted
MOBIHOC
2005
ACM
16 years 5 days ago
Inducing spatial clustering in MAC contention for spread spectrum ad hoc networks
This paper proposes a new principle for designing MAC protocols for spread spectrum based ad hoc networks ? inducing spatial clustering in contending transmitters/receivers. We fi...
Xiangying Yang, Gustavo de Veciana