Block-triangular Preconditioners for Systems Arising From Edge-preserving Image Restoration

Keyphrases

• Block Triangular Preconditioner 100%
• Coefficient Matrix 33%
• Cost Function 33%
• Data Fidelity Term 33%
• Edge Preserving 100%
• Edge-preserving Regularization 33%
• Fixed-point Iteration 33%
• Half-quadratic Regularization 100%
• Image Reconstruction 100%
• Image Restoration Problem 66%
• Newton Equation 33%
• Newton's Method 66%
• Numerical Performance 33%
• Preconditioned Conjugate Gradient Method 66%
• Regularization Method 100%
• Regularization Term 33%
• Signal Restoration 66%
• SSOR Preconditioner 33%
• Structured Systems 33%
• Symmetric Positive Definite 33%
• System of Linear Equations 33%

Engineering

• Coefficient Matrix 20%
• Conjugate Gradient Method 40%
• Cost Function 20%
• Experimental Result 20%
• Fixed Point 20%
• Image Restoration 100%
• Image Restoration Problem 40%
• Linear Equation 20%
• Newton's Method 40%
• Regularization 100%
• Signal Restoration 40%
• Symmetric Positive Definite 20%

Mathematics

• Coefficient Matrix 20%
• Conjugate Gradient Method 40%
• Cost Function 20%
• Edge 100%
• Fixed Point Iteration 20%
• Iteration Method 20%
• Newton Equation 20%
• Newton's Method 40%
• Positive Definite 20%
• Regularization 100%
• Structured System 20%
• Systems of Linear Equation 20%