| 一种车站危险品检测中的三维图像重建方法 |
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| 引用本文： | 闫建伟,王小鹏,魏冲冲,王雪静.一种车站危险品检测中的三维图像重建方法[J].计算机与数字工程,2012,40(6):113-115. |
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| 作者姓名： | 闫建伟 王小鹏 魏冲冲 王雪静 |
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| 作者单位： | 兰州交通大学电子与信息工程学院 兰州730070 |
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| 基金项目： | 甘肃省高等学校硕士生导师科研项目 |
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| 摘 要： | 图像重建是车站危险品检测过程中的重要环节,其结果直接关系到后续危险品的识别。为此提出了一种基于FDK算法的三维图像重建方法。该方法首先将X射线探测器得到的物体投影值,利用正弦函数对投影数据进行加权;然后对不同投影角度的投影数据进行水平方向的一维滤波,去除噪声和伪迹;最后沿X射线方向进行三维反投影。实验结果表明,该方法能更清晰地重建出物体。
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| 关 键 词： | 危险品检测 三维重建 FDK算法 |
A 3D Image Reconstruction Method of Dangerous Goods Detection at the Station |
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| YAN Jianwei
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WANG Xiaopeng
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WEI Chongchong
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WANG Xuejing.A 3D Image Reconstruction Method of Dangerous Goods Detection at the Station[J].Computer and Digital Engineering,2012,40(6):113-115. |
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| Authors: | YAN Jianwei WANG Xiaopeng WEI Chongchong WANG Xuejing |
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| Affiliation: | (Institute of Electronic and Information Engineering,Lanzhou Jiaotong University,Lanzhou 730070) |
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| Abstract: | Image reconstruction is an important segment in the process of dangerous goods detection,which directly related to the follow-up of dangerous goods identification.So that,a 3D image reconstruction method is proposed based on FDK algorithm.Firstly,X-ray scan platform of objects,the probe after detecting get projection value object,using a sine functions of projection data weighted.Then,filtered one dimensional horizontal of the different angle projection of projected data,removing the denoising and artifact.Finally,it is re-projected 3D along the X-ray direction.The experimental results show that this method can reconstruc more clearly objects. |
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| Keywords: | dangerous goods detection 3D reconstruction FDK algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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