Convex optimization problem prototyping for image reconstruction in computed tomography with the Chambolle-Pock algorithm.

Convex optimization problem prototyping for image reconstruction in computed tomography with the Chambolle-Pock algorithm.
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DOI:
10.1088/0031-9155/57/10/3065
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发表时间:
2012-05-21
影响因子:
3.5
通讯作者:
Pan X
Pan X
中科院分区:
工程技术2区
文献类型:
--
作者:
Sidky EY;Jørgensen JH;Pan X

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将Chambolle and Pock(CP),2011年提出的原始-对偶优化算法应用于各种CT图像重建中感兴趣的凸优化问题。该算法允许优化问题的快速原型,以设计用于CT的迭代图像重建算法。本文对原始-对偶算法进行了简要的总结,并通过对许多与CT相关的优化问题的CP算法实例的显式推导,展示了它在原型设计中的潜力。给出了一个低强度X射线照射下乳腺CT建模的应用实例。
The primal-dual optimization algorithm developed in Chambolle and Pock (CP), 2011 is applied to various convex optimization problems of interest in computed tomography (CT) image reconstruction. This algorithm allows for rapid prototyping of optimization problems for the purpose of designing iterative image reconstruction algorithms for CT. The primal-dual algorithm is briefly summarized in the article, and its potential for prototyping is demonstrated by explicitly deriving CP algorithm instances for many optimization problems relevant to CT. An example application modeling breast CT with low-intensity X-ray illumination is presented.
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