PET Reconstruction With Non-Negativity Constraint in Projection Space: Optimization Through Hypo-Convergence
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DOI: 10.1109/tmi.2019.2920109
Abstract: Standard positron emission tomography (PET) reconstruction techniques are based on maximum-likelihood (ML) optimization methods, such as the maximum-likelihood expectation-maximization (MLEM) algorithm and its variations. Most methodologies rely on a positivity constraint on the activity distribution… read more here.
Keywords: optimization; convergence; hypo convergence; constraint ... See more keywords