Gaussian beam decomposition of high frequency wave fields using expectation-maximization.
Gil ArielBjörn EngquistNicolay M. TanushevYen-Hsi Richard TsaiPublished in: J. Comput. Phys. (2011)
Keyphrases
- high frequency
- expectation maximization
- low frequency
- gaussian mixture
- em algorithm
- maximum likelihood
- gaussian mixture model
- gaussian distribution
- visual quality
- subband
- high resolution
- probabilistic model
- mixture model
- gaussian densities
- wavelet coefficients
- wavelet transform
- high frequencies
- low pass
- wavelet packet
- k means
- wavelet decomposition
- wavelet domain
- multi resolution analysis
- gaussian filter
- discrete wavelet transform
- image segmentation
- computer vision
- phase shifting
- gaussian noise
- super resolution
- computational complexity
- feature vectors
- multiresolution
- filter bank
- data fusion