Keyphrases
- natural images
- gaussian mixture
- image patches
- natural scenes
- multiscale
- object recognition
- gaussian mixture model
- em algorithm
- higher order
- expectation maximization
- closed form
- probability density function
- covariance matrix
- input image
- mixture model
- denoising
- density estimation
- image statistics
- natural image statistics
- power spectrum
- statistics of natural images
- natural image patches
- test images
- receptive fields
- maximum likelihood
- data mining
- sample size
- graphical models
- pairwise
- image processing