| 超声反射CT在水下物体成像中的应用 |
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| 引用本文： | 李一宁,兰从庆. 超声反射CT在水下物体成像中的应用[J]. 声学技术, 1997, 16(2): 58-61 |
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| 作者姓名： | 李一宁 兰从庆 |
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| 作者单位： | 中国科学院武汉物理研究所 |
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| 基金项目： | 国家自然科学基金,声场信息国家重点实验室支持课题 |
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| 摘 要： | 本文重点介绍了沿平面扫描成像，提出了修正扫描起始点位置以及换能器孔径影响的一种方法，得到较好的实验结果。
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| 关 键 词： | 照射角 CT成像 投影 水下物体 超声换能器 |
| 收稿时间： | 1996-06-12 |
| 修稿时间： | 1996-12-13 |
Application of ultrasonic reflection mode tomography to underwater imaging |
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| LI Yining and LAN Congqin. Application of ultrasonic reflection mode tomography to underwater imaging[J]. Technical Acoustics, 1997, 16(2): 58-61 |
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| Authors: | LI Yining and LAN Congqin |
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| Affiliation: | Wuhan Institute of Physics, Academia Sinica, Wuhan 430071;Wuhan Institute of Physics, Academia Sinica, Wuhan 430071 |
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| Abstract: | In ultrasonic reflection mode computerized tomography (URCT) horizontal scan has been limited projection data due to incident angle limited. In this paper we have investigated this situation in underwater imaging the filtered backprojection algorithm is not well suited to CT image reconstruction. We used the iterative reconstruction reprojection (IRR) algorithm with scan start point modified and point source approximated to reconstruct. Experimental results show that the method can be reconstructed very well. |
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| Keywords: | limited angle CT image projection |
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