Divergence-Free Constrained Phase Unwrapping and Denoising for 4D Flow MRI Using Weighted Least-Squares.
Jiacheng ZhangSean RothenbergerMelissa C. BrindiseMichael ScottHaben BerhaneJustin J. BarabooMichael MarklVitaliy L. RayzPavlos VlachosPublished in: IEEE Trans. Medical Imaging (2021)
Keyphrases
- phase unwrapping
- weighted least squares
- least squares
- denoising
- image denoising
- image processing
- magnetic resonance imaging
- optical flow
- missing data
- flow field
- parameter estimation
- motion parameters
- levenberg marquardt
- upper bound
- medical images
- graphical models
- image reconstruction
- pairwise
- three dimensional
- conjugate gradient
- learning algorithm