Edge-Preserving PET Image Reconstruction Using Trust Optimization Transfer
Volume: 34, Issue: 4, Pages: 930 - 939
Published: Apr 1, 2015
Abstract
Iterative image reconstruction for positron emission tomography can improve image quality by using spatial regularization. The most commonly used quadratic penalty often oversmoothes sharp edges and fine features in reconstructed images, while nonquadratic penalties can preserve edges and achieve higher contrast recovery. Existing optimization algorithms such as the expectation maximization (EM) and preconditioned conjugate gradient (PCG)...
Paper Details
Title
Edge-Preserving PET Image Reconstruction Using Trust Optimization Transfer
Published Date
Apr 1, 2015
Volume
34
Issue
4
Pages
930 - 939
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