Sciweavers

ICASSP
2011
IEEE
12 years 9 months ago
Non-parametric bayesian measurement noise density estimation in non-linear filtering
In this study, we investigate online Bayesian estimation of the measurement noise density of a given state space model using particle filters and Dirichlet process mixtures. Diri...
Emre Özkan, Saikat Saha, Fredrik Gustafsson, ...
ICASSP
2011
IEEE
12 years 9 months ago
Spiral colour model: Reduction from 3-D to 2-D
We define a new reduced model to represent coloured images. We propose to use two components for a full definition of a colour instead of three. To that end we take advantage of...
Frederic Garcia, Djamila Aouada, Bruno Mirbach, Bj...
ICASSP
2011
IEEE
12 years 9 months ago
Sparsity-based defect pixel compensation for arbitrary camera raw images
In high quality imaging even tiny distortions as small as a single pixel are visible and can not be accepted. Although the production quality of CMOS image sensors is very high, f...
Michael Schöberl, Jürgen Seiler, Bernhar...
ICASSP
2011
IEEE
12 years 9 months ago
Theoretical analysis of musical noise in Wiener filtering family via higher-order statistics
Recently, one of the authors has reported that the amount of generated musical noise is strongly correlated with higher-order statistics of the power spectra. On the basis of this...
Takayuki Inoue, Hiroshi Saruwatari, Kiyohiro Shika...
ICASSP
2011
IEEE
12 years 9 months ago
A Bernoulli-Gaussian model for gene factor analysis
This paper investigates a Bayesian model and a Markov chain Monte Carlo (MCMC) algorithm for gene factor analysis. Each sample in the dataset is decomposed as a linear combination...
Cecile Bazot, Nicolas Dobigeon, Jean-Yves Tournere...
ICASSP
2011
IEEE
12 years 9 months ago
Joint source-channel rate control for pixel-domain distributed video coding
We study the scenario of pixel-domain distributed video coding for noisy transmission environments and propose a method to allocate the available rate between source coding and ch...
Hu Chen, Eckehard G. Steinbach, Chang Wen Chen
ICASSP
2011
IEEE
12 years 9 months ago
Urban terrain tracking in high clutter with waveform-agility
We consider the problem of tracking a maneuvering target in urban terrain with high clutter. Although multipath has been previously exploited to improve target tracking in complex...
Bhavana Chakraborty, Jun Jason Zhang, Antonia Papa...
ICASSP
2011
IEEE
12 years 9 months ago
Signal-based segmentation of human locomotion using embedded sensor network
We introduce a simple approach to segment in homogeneous phases a long-duration record of locomotion data consisting of body segment acceleration and foot pressure information onl...
Maud Pasquier, Bernard Espiau, Christine Azevedo-C...
ICASSP
2011
IEEE
12 years 9 months ago
Estimation of the noise correlation matrix
To harvest the potential of multi-channel noise reduction methods, it is crucial to have an accurate estimate of the noise correlation matrix. Existing algorithms either assume sp...
Richard C. Hendriks, Timo Gerkmann
ICASSP
2011
IEEE
12 years 9 months ago
Identification of ARMA models using intermittent and quantized output observations
This paper studies system identification of ARMA models whose outputs are subject to finite-level quantization and random packet dropouts. A simple adaptive quantizer and the co...
Damián Marelli, Keyou You, Minyue Fu