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fang she ct zhong jian de ping jun chang ji shu
Author(s): 
Pages: 89-93
Year: Issue:  5
Journal: Journal on Communications

Keyword:  放射CT重建组合马尔柯夫随机场平均场退火;
Abstract: 本文引用了一种图像分布的先验模型,在这种先验模型中引入了两个边界模型,称为组合马尔柯夫随机场模型,用Bayes定理将其与放射CT(ECT)问题相结合构造出后验概率,由于这个最大后验估计问题是一个非凸问题,本文采用平均场退火技术对其进行分析,将统计松弛方程转化为一组确定性迭代式,计算机进行的模拟实验证实了这种算法的有效性。
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