Knowledge-aided covariance matrix estimation and adaptive detection in compound-Gaussian noise.
Francesco BandieraOlivier BessonGiuseppe RicciPublished in: IEEE Trans. Signal Process. (2010)
Keyphrases
- covariance matrix
- gaussian noise
- covariance matrices
- noise suppression
- estimation error
- noisy images
- denoising
- image restoration
- noise level
- principal component analysis
- geometrical interpretation
- eigenvalues and eigenvectors
- signal to noise ratio
- sample size
- impulse noise
- higher order
- noise model
- noise variance
- principal components
- vector space
- gaussian mixture
- median filter
- computational complexity
- salt and pepper noise
- multivariate gaussian
- objective function
- machine learning