Deflated preconditioned Conjugate Gradient methods for noise filtering of low-field MR images

Mathematics

• Noise Filtering 100%
• Preconditioned Conjugate Gradient Method 75%
• Deflation 47%
• Preconditioner 45%
• Denoising 30%
• Operator 27%
• Diffusion Model 26%
• Total Variation 25%
• Discrete Cosine Transform 17%
• Linear Systems 16%
• Nonlinear Reaction-diffusion Equations 15%
• Varying Coefficients 14%
• Hardware 14%
• Pixel 14%
• Conjugate Gradient 13%
• Nonlinear Diffusion 13%
• Implicit Method 13%
• Imaging 12%
• Preconditioning 12%
• Conditioning 12%
• Laplace Operator 12%
• Diffusion Coefficient 11%
• Jacobi 10%
• Resources 10%
• Evaluate 9%
• Influence 9%
• Discretization 8%
• Three-dimensional 8%
• Iteration 7%
• Standards 6%

Engineering & Materials Science

• Conjugate gradient method 74%
• Linear systems 17%
• Discrete cosine transforms 11%
• Nonlinear equations 10%
• Magnetic resonance imaging 10%
• Imaging techniques 7%
• Pixels 7%
• Computer hardware 5%
• Costs 3%