| 基于倒置结构的直接体积重建 |
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| 引用本文： | 谌飚,吕东辉,庄天戈.基于倒置结构的直接体积重建[J].光学学报,1999,19(1):5-40. |
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| 作者姓名： | 谌飚 吕东辉 庄天戈 |
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| 作者单位： | 上海交通大学生物医学工程系,上海,200030 |
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| 基金项目： | 国家自然科学基金,上海市青年科学基金 |
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| 摘 要： | 通过多个点状探测器在三维空间中的适当分布的排列，得到了基于倒置结构Ｘ射线锥形束投影的直接体积重建三维成像七锥形束边界重建相结合，针对倒置结构构造的重建算法及其数值仿真表明，新的成像模式相对于传统的锥形束边界重建，在实际存在Ｘ射线投影噪声情形下有明显的优点。
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| 关 键 词： | 直接体积重建 边界重建 锥形束重建 X射线三维成像 无损检测 |
| 收稿时间： | 1997/10/27 |
Reverse Geometry Based Direct Volume Reconstruction |
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| Chen Biao,Lu Donghui,Zhuang Tiange.Reverse Geometry Based Direct Volume Reconstruction[J].Acta Optica Sinica,1999,19(1):5-40. |
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| Authors: | Chen Biao Lu Donghui Zhuang Tiange |
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| Abstract: | A novel direct volume reconstruction method based on reverse geometry for cone beam X ray projections is presented. We combine the cone beam boundary reconstruction with reverse geometry by extending one or two detectors to many point shaped detectors located purposively in 3D space. The boundary reconstruction algorithm and its numerical simulation on two volume phantoms have shown that the new reverse geometry is worth considering and exploiting compared to the conventional X ray cone beam boundary reconstruction in case of X ray projection noise. |
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| Keywords: | direct volume reconstruction boundary reconstruction cone beam reconstruction X ray 3D imaging non destructive evaluation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
