A signal denoising algorithm based on overcomplete wavelet representations and Gaussian models.
Guang DengDavid B. H. TaySlaven MarusicPublished in: Signal Process. (2007)
Keyphrases
- denoising algorithm
- gaussian model
- denoising
- natural images
- denoising methods
- wavelet coefficients
- image denoising
- noise model
- gaussian distribution
- frequency domain
- noise level
- wavelet packet
- noisy images
- high frequency
- wavelet domain
- transform domain
- noise reduction
- gaussian mixture model
- conditional independence
- subband
- multiscale
- expectation maximization
- wavelet transform
- peak signal to noise ratio
- image processing
- mixture model
- image intensity
- sparse representation
- object recognition
- image patches
- computer vision
- spatial domain
- skin color
- input image