| 凸算法在TCT统计重建中的应用 |
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| 引用本文： | 薛迎,刘子龙,蔚慧甜,郑源彩,周学威.凸算法在TCT统计重建中的应用[J].电子测试,2011(7):42-45. |
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| 作者姓名： | 薛迎 刘子龙 蔚慧甜 郑源彩 周学威 |
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| 作者单位： | 中北大学,电子测试技术国家重点实验室,山西,太原,030051 |
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| 摘 要： | TCT(Transmission Computed Tomograhy)统计迭代重建算法是目前研究的一个热点,相比ECT统计重建算法来讲,TCT统计重建算法的似然函数比ECT的形式更加复杂、更不易求解.为了简化该问题的求解,本文从优化转化的思想出发,结合凸不等式的性质,寻找了一个易于求解、分离变量的代理函数代替原来的似...
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| 关 键 词： | 凸算法 TCT统计迭代重建 有序子集 |
Application of convex algorithm in TCT statistical reconstruction |
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| Xue Ying,Liu Zilong,Yu Heitian,Zheng Yuancai,Zhou Xuewei.Application of convex algorithm in TCT statistical reconstruction[J].Electronic Test,2011(7):42-45. |
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| Authors: | Xue Ying Liu Zilong Yu Heitian Zheng Yuancai Zhou Xuewei |
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| Affiliation: | Xue Ying,Liu Zilong,Yu Heitian,Zheng Yuancai,Zhou Xuewei (National Key Lab for Electronic Measurement and Technology,North University of China,Taiyuan,030051,China) |
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| Abstract: | The research of statistical iterative algorithm in Transmission Computed Tomography is a hot spot currently. Compared with ECT statistical reconstruction algorithm, the likelihood function of TCT statistical reconstruction algorithm than ECT is more sophisticated and easier to solve. From optimization transformation , combining with the nature of convex inequality, an easy solution, separation variable agent function instead of likelihood function is looked for in this paper. TCT iterative reconstruction of... |
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| Keywords: | convex algorithm TCT statistical iteration reconstruction order subsets |
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