Provable ICA with Unknown Gaussian Noise, and Implications for Gaussian Mixtures and Autoencoders
Sanjeev AroraRong GeAnkur MoitraSushant SachdevaPublished in: CoRR (2012)
Keyphrases
- gaussian noise
- gaussian mixture
- denoising
- noisy images
- image denoising
- noise removal
- impulse noise
- closed form
- em algorithm
- image processing
- gaussian mixture model
- noise level
- expectation maximization
- salt and pepper noise
- image restoration
- covariance matrix
- probability density function
- mixture model
- natural images
- face recognition
- signal to noise ratio
- signal processing
- feature extraction
- density estimation
- multiscale
- similarity measure
- computer vision
- machine learning