3D Feature Constrained Reconstruction for Low-Dose CT Imaging.

Jin Liu,Yining Hu,Jian Yang,Yang Chen,Huazhong Shu,Limin Luo,Qianjing Feng,Zhiguo Gui,Gouenou Coatrieux

IEEE Transactions on Circuits and Systems for Video Technology（2018）

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摘要

Low-dose computed tomography (LDCT) images are often highly degraded by amplified mottle noise and streak artifacts. Maintaining image quality under low-dose scan protocols is a well-known challenge. Recently, sparse representation-based techniques have been shown to be efficient in improving such CT images. In this paper, we propose a 3D feature constrained reconstruction (3D-FCR) algorithm for L...

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关键词

Dictionaries,Image reconstruction,Computed tomography,Three-dimensional displays,Minimization,Algorithm design and analysis,Image quality

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