Noise Reduction in Small Animal PET Images Using a Variational Non-Convex Functional

Jose Mejia,Boris Mederos,Ramón Alberto Mollineda,Leticia Ortega Maynez

IEEE Transactions on Nuclear Science（2016）

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摘要

Positron emission tomography (PET) imaging is widely used in nuclear medicine. However, data acquired by a PET system are generally contaminated with heavy noise, which often persists after image reconstruction. In this paper, a novel non-convex functional is introduced to suitably attenuate noise in PET images. The proposed functional contains a new regularization term defined as a convex combina...

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关键词

Positron emission tomography,Robustness,Noise reduction,Image reconstruction,Smoothing methods,Noise measurement,Animals

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