Sciweavers

ICASSP
2008
IEEE
14 years 6 months ago
Joint base-calling of two DNA sequences with factor graphs
—Automated estimation of DNA base-sequences is an important step in genomics and in many other emerging fields in biological and medical sciences. Current automated sequencers p...
Xiaomeng Shi, Desmond S. Lun, Jim Meldrim, Ralf K&...
ICASSP
2008
IEEE
14 years 6 months ago
Target detection and identification using canonical correlation analysis and subspace partitioning
We present a data-driven approach for target detection and identification based on a linear mixture model. Our aim is to determine the existence of certain targets in a mixture w...
Wei Wang 0018, Tülay Adali, Darren Emge
ICASSP
2008
IEEE
14 years 6 months ago
Contextually adaptive signal representation using conditional principal component analysis
The conventional method of generating a basis that is optimally adapted (in MSE) for representation of an ensemble of signals is Principal Component Analysis (PCA). A more ambitio...
Rosa M. Figueras i Ventura, Umesh Rajashekar, Zhou...
ICASSP
2008
IEEE
14 years 6 months ago
Hybrid design of filtered-x adaptive algorithm via sampled-data control theory
Analysis and design of ltered-x adaptive algorithms are conventionally done by assuming that the transfer function in the secondary path is a discrete-time system. However, in rea...
Masaaki Nagahara, Yutaka Yamamoto
ICASSP
2008
IEEE
14 years 6 months ago
Blind optimization of algorithm parameters for signal denoising by Monte-Carlo SURE
We consider the problem of optimizing the parameters of an arbitrary denoising algorithm by minimizing Stein’s Unbiased Risk Estimate (SURE) which provides a means of assessing ...
Sathish Ramani, Thierry Blu, Michael Unser
ICASSP
2008
IEEE
14 years 6 months ago
Abnormal event detection based on trajectory clustering by 2-depth greedy search
Clustering-based approaches for abnormal video event detection have been proven to be effective in the recent literature. Based on the framework proposed in our previous work [1],...
Fan Jiang, Ying Wu, Aggelos K. Katsaggelos
ICASSP
2008
IEEE
14 years 6 months ago
Parametric estimation of affine deformations of binary images
We consider the problem of planar object registration on binary images where the aligning transformation is restricted to the group of affine transformations. Previous approaches...
Csaba Domokos, Zoltan Kato, Joseph M. Francos
ICASSP
2008
IEEE
14 years 6 months ago
An audio watermarking method based on molecular matching pursuit
In this paper we introduce a new watermarking model combining a joint time frequency (TF) representation using the molecular matching pursuit (MMP) algorithm and a psychoacoustic ...
Mathieu Parvaix, Sridhar Krishnan, Cornel Ioana
ICASSP
2008
IEEE
14 years 6 months ago
Maximum a posteriori ICA: Applying prior knowledge to the separation of acoustic sources
Independent component analysis (ICA) for convolutive mixtures is often applied in the frequency domain due to the desirable decoupling into independent instantaneous mixtures per ...
Graham W. Taylor, Michael L. Seltzer, Alex Acero
ICASSP
2008
IEEE
14 years 6 months ago
Optical flow robust estimation in a hybrid multi-resolution MRF framework
We propose in this paper a robust multi-resolution technique to estimate dense velocity field from image sequences. It couples a Gaussian pyramidal down-sampling decomposition to...
Cyril Cassisa, Véronique Prinet, Liang Shao...