Denoising and spatial resolution enhancement of 4D flow MRI using proper orthogonal decomposition and lasso regularization.
Mojtaba F. FathiAli BakhshinejadAhmadreza BaghaieDavid SalonerRaphael H. SachoVitaliy L. RayzRoshan M. D'SouzaPublished in: Comput. Medical Imaging Graph. (2018)
Keyphrases
- resolution enhancement
- denoising
- wavelet packet
- beltrami flow
- super resolution
- regularization parameter
- magnetic resonance imaging
- image denoising
- low resolution
- high resolution
- total variation
- visual analysis
- spatial information
- medical images
- noisy images
- regularization term
- nonlinear diffusion
- image resolution
- image restoration
- wavelet domain
- discontinuity preserving
- least squares
- natural images
- higher resolution
- higher order
- image processing
- flow field
- potential functions
- image reconstruction
- motion estimation