Sciweavers

ICASSP
2011
IEEE
13 years 8 days ago
Intra-frame prediction with lapped transforms for image coding
In this paper we propose the use of intra-frame prediction with lapped transforms for image coding. Both lapped transforms and intra prediction exploit the redundancies of neighbo...
Rafael Galvao de Oliveira, Béatrice Pesquet...
ICASSP
2011
IEEE
13 years 8 days ago
Integrated Sidelobe Level of sets of Rotated Legendre Sequences
We here address the problem of constructing sets of sequences with low integrated aperiodic auto- and crosscorrelations when the constraint of antipodal symbols is enforced. Our m...
Salvador Javier Haboba, Riccardo Rovatti, Gianluca...
ICASSP
2011
IEEE
13 years 8 days ago
Secrecy capacity and secure outage performance for rayleigh fading simo channel
In this paper, we consider the problem of secret communication through Rayleigh fading single-input multiple-output (SIMO) broadcast channel in the presence of an eavesdropper. At...
Md. Zahurul I. Sarkar, Tharmalingam Ratnarajah
ICASSP
2011
IEEE
13 years 8 days ago
Quantization with an adjustable codeword length penalty
Quantizers are generally designed either for fixed-rate coding or variable-rate coding. Under common conditions, variable-rate quantization leads to the same mean distortion for ...
W. Bastiaan Kleijn, Moo Young Kim
ICASSP
2011
IEEE
13 years 8 days ago
Target tracking and localization with ambiguous phase measurements of sensor networks
When tracking a target using phase-only signal returns, range ambiguities are a major issue. In this work, a look-up table between phase measurement space and target location spac...
Yongqiang Cheng, Xuezhi Wang, Terry Caelli, Bill M...
ICASSP
2011
IEEE
13 years 8 days ago
Optimized edge appearance probability for cooperative localization based on tree-reweighted nonparametric belief propagation
Nonparametric belief propagation (NBP) is a well-known particlebased method for distributed inference in wireless networks. NBP has a large number of applications, including coope...
Vladimir Savic, Henk Wymeersch, Federico Penna, Sa...
ICASSP
2011
IEEE
13 years 8 days ago
Adaptive recursive FLANN filters for nonlinear active noise control
In this paper, a recursive nonlinear filter exploiting trigonometric expansions of the past output samples is introduced. Its peculiarity is, in general, the ability to model rea...
Giovanni L. Sicuranza, Alberto Carini
ICASSP
2011
IEEE
13 years 8 days ago
Improved estimation of the amplitude envelope of time-domain signals using true envelope cepstral smoothing
The amplitude modulations of musical instrument sounds and speech are important perceptual cues. Accurate estimation of the amplitude, or equivalently energy, envelope of a time-d...
Marcelo F. Caetano, Xavier Rodet
ICASSP
2011
IEEE
13 years 8 days ago
A single snapshot optimal filtering method for fundamental frequency estimation
Recently, optimal linearly constrained minimum variance (LCMV) filtering methods have been applied for fundamental frequency estimation. Like many other fundamental frequency est...
Jesper Rindom Jensen, Mads Groesboll Christensen, ...
ICASSP
2011
IEEE
13 years 8 days ago
Comparison of several covariance matrix estimators for portfolio optimization
Modern portfolio theory dates back to a seminal 1952 paper by H. Markowitz and has been very influential both in academic finance and among practitioners in the financial indus...
Ka Ki Ng, Priyanka Agarwal, Nathan Mullen, Dzung D...