| 一种改进的代数重建算法及其实现 |
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| 引用本文： | 郭威,陈贺新.一种改进的代数重建算法及其实现[J].吉林大学学报(工学版),2009(Z2). |
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| 作者姓名： | 郭威 陈贺新 |
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| 作者单位： | 吉林大学通信工程学院;吉林大学公共计算机教学与研究中心; |
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| 基金项目： | 国家自然科学基金项目(60672100) |
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| 摘 要： | 深入研究了代数重建算法求解中的迭代过程,从迭代次序入手,根据预先估计所得的每个超平面的伪误差大小来确定迭代投影次序,从而改变了传统代数重建算法迭代求解过程中所遵循的固定投影次序,且新的投影次序具有自适应的优点。实验结果表明,本方法求解的收敛速度及解的精度都有明显的改善。
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| 关 键 词： | 信息处理技术 代数重建算法 图像重建 递推算法 反问题 |
Modified algebraic reconstruction algorithm and its implementation |
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| GUO Wei,CHEN He-xin.Modified algebraic reconstruction algorithm and its implementation[J].Journal of Jilin University:Eng and Technol Ed,2009(Z2). |
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| Authors: | GUO Wei CHEN He-xin |
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| Affiliation: | 1.School of Communication Engineering;Jilin University;Changchun 130022;China;2.Computer Teaching and Research Center;China |
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| Abstract: | Keeping an eye on the projection sequence in traditional algebraic reconstruction algorithm,the proposed algorithm does projection in an order which is decided by the value of pseudo error of each hyperplane computed in prior.So the given order in traditional algorithm turns to be an adaptive one.Experimental results indicate that the modified algorithm gives much better results than the classical one. |
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| Keywords: | information processing technology algebraic reconstruction algorithm image reconstructioniterative algorithm inverse problem |
| 本文献已被 CNKI 等数据库收录！ |
