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Rectified Gaussian Scale Mixtures and the Sparse Non-Negative Least Squares Problem.
Alican Nalci
Igor Fedorov
Maher Al-Shoukairi
Thomas T. Liu
Bhaskar D. Rao
Published in:
IEEE Trans. Signal Process. (2018)
Keyphrases
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least squares
gaussian mixture
mixture distribution
scale parameter
mixture model
robust estimators
parameter estimation
heavy tailed
scale space
zero crossing
robust estimation
gaussian mixture model
maximum likelihood
gaussian density
normal distribution
generalized gaussian
spatial information
em algorithm