Beamforming array technique with clustered multichannel noise covariance matrix for mechanical noise reduction.
Masahito TogamiTakashi SumiyoshiYasunari ObuchiYohei KawaguchiHiroaki KokuboPublished in: EUSIPCO (2010)
Keyphrases
- noise reduction
- covariance matrix
- speech enhancement
- signal to noise ratio
- single channel
- noise level
- noisy environments
- covariance matrices
- linear array
- edge preserving
- median filter
- principal component analysis
- wiener filter
- edge detection
- noise free
- noise removal
- sample size
- direction of arrival
- noise detection
- geometrical interpretation
- correlation matrix
- impulsive noise
- noise filtering
- multiplicative noise
- speckle noise
- edge preservation
- hearing aids
- impulse noise
- multi channel
- gaussian noise
- frequency domain
- noise cancellation
- objective function
- eigendecomposition
- linear prediction
- noise model
- computer vision
- independent component analysis
- model selection
- maximum likelihood
- color images
- multiscale