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ICASSP
2011
IEEE
7 years 8 months ago
Estimation of the frequency dependent reverberation time by means of warped filter-banks
An improved approach for the estimation of the frequency dependent reverberation time (RT) by means of allpass transformed filterbanks is presented. It is shown that by means of ...
Heinrich W. Löllmann, Peter Vary
ICASSP
2011
IEEE
7 years 8 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
7 years 8 months ago
An extension of the ICA model using latent variables
The Independent Component Analysis (ICA) model is extended to the case where the components are not necessarily independent: depending on the value a hidden latent process at the ...
Selwa Rafi, Marc Castella, Wojciech Pieczynski
ICASSP
2011
IEEE
7 years 8 months ago
Parameter estimation using sparse reconstruction with dynamic dictionaries
We consider the problem of parameter estimation for signals characterized by sums of parameterized functions. We present a dynamic dictionary subset selection approach to paramete...
Christian D. Austin, Joshua N. Ash, Randolph L. Mo...
ICASSP
2011
IEEE
7 years 8 months ago
Gain and phase autocalibration for uniform rectangular arrays
—To maintain the performance of direction-of-arrival (DOA) estimation, an accurate model of the array response is required. In a time-varying sensor environment, this is only pos...
Philipp Heidenreich, Abdelhak M. Zoubir
ICASSP
2011
IEEE
7 years 8 months ago
Source localization using time difference of arrival within a sparse representation framework
The problem addressed is source localization via time-differenceof-arrival estimation in a multipath channel. Solving this localization problem typically implies cross-correlating...
Ciprian R. Comsa, Alexander M. Haimovich, Stuart C...
ICASSP
2011
IEEE
7 years 8 months ago
Feature-based global motion estimation using the Helmholtz principle
Global motion estimation is an important task for various video processing techniques. The estimation itself has to be robust in presence of arbitrarily moving foreground objects....
Michael Tok, Alexander Glantz, Andreas Krutz, Thom...
ICASSP
2011
IEEE
7 years 8 months ago
Robust hyperspectral signal unmixing in the presence of correlated noise
Hyperspectral imaging analysis aims at the estimation of the number of constituent substances, known as endmembers, their spectral signatures as well as their abundance fractions ...
Masoud Farzam, Soosan Beheshti
ICASSP
2011
IEEE
7 years 8 months ago
Direction-of-arrival estimation and array calibration for partly-calibrated arrays
In this paper, a new direction-of-arrival (DOA) estimation technique applicable to partly-calibrated arrays (PCAs) composed of arbitrary subarrays with unknown subarray displaceme...
Pouyan Parvazi, Marius Pesavento, Alex B. Gershman
VLUDS
2010
220views Visualization» more  VLUDS 2010»
7 years 11 months ago
Markerless Camera Pose Estimation - An Overview
Human perception shows that a correct interpretation of a 3D scene on the basis of a 2D image is possible without markers. Solely by identifying natural features of different obje...
Tobias Nöll, Alain Pagani, Didier Stricker
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