52 search results - page 1 / 11 » Local Variation as a Statistical Hypothesis Test |
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
In this paper we propose a nonparametric hypothesis test for stationarity based on local Fourier analysis. We employ a test statistic that measures the variation of time-localized...
ICC
2009
IEEE
13 years 11 months ago
2009
IEEE
—In this paper, we present a composite hypothesis testing approach for cooperative spectrum sensing. We derive the optimal likelihood ratio test (LRT) statistic based on the Neym...
TSP
2010
12 years 11 months ago
2010
An operational framework is developed for testing stationarity relatively to an observation scale, in both stochastic and deterministic contexts. The proposed method is based on a ...
ISBI
2008
IEEE
14 years 5 months ago
2008
IEEE
This paper describes a new methodology and associated theoretical analysis for rapid and accurate extraction of activation regions from functional MRI data. Most fMRI data analysi...
ECCV
2006
Springer
14 years 6 months ago
2006
Springer
Image restoration is a keen problem of low level vision. In this paper, we propose a novel - assumption-free on the noise model - technique based on random walks for image enhancem...