| 基于自制标尺的C臂X光全景图像拼接方法 |
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| 引用本文： | 陈殿生,范兴,胡磊.基于自制标尺的C臂X光全景图像拼接方法[J].高技术通讯,2006,16(10):1030-1033. |
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| 作者姓名： | 陈殿生 范兴 胡磊 |
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| 作者单位： | 长春工业大学机电工程学院,长春,130012;北京航空航天大学机器人研究所,北京,100083;长春工业大学机电工程学院,长春,130012;北京航空航天大学机器人研究所,北京,100083 |
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| 摘 要： | 在对C臂X光图像和现有的医学图像匹配方法分析的基础上,提出了一种基于自制标尺的C臂X光图像拼接方法.该图像拼接方法分为失真校正、图像匹配和图像合成三步,其中图像匹配是算法的关键.首先采用双线性变换模型进行失真校正;然后基于自制标尺,采用图像灰度匹配法对校正后的C臂X光图像进行图像匹配;最后将其余各幅图像间的匹配矩阵均换算成以第一幅图像为基准,据此合成出全景图像.通过尸腿骨X光图像拼接实验验证了该方法的准确性.
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| 关 键 词： | X光 几何校正 图像匹配 图像拼接 |
| 收稿时间： | 2006-01-17 |
| 修稿时间： | 2006年1月17日 |
C-arm X-ray image mosaic using home-made ruler |
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| Chen Diansheng,Fan Xing,Hu Lei.C-arm X-ray image mosaic using home-made ruler[J].High Technology Letters,2006,16(10):1030-1033. |
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| Authors: | Chen Diansheng Fan Xing Hu Lei |
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| Affiliation: | 1.School of Mechatronics Engineering, Changchun University of Technology, Changchun 130012;2. Robotics Institute, Beijing University of Aeronautics and Astronautics, Beijing 100083 |
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| Abstract: | Based on the analysis of C-arm X-ray images and the existing methods in medical image registration, a C-arm image mosaic method based on a home-made ruler is proposed. The X-ray images acquired in the image acquisition protocol are corrected with the bilinear transformation model, and the corrected images are processed by the intensity-based registra- tion and aligned in the coordination of the first image, so that the X-ray image panorama is formed. The accuracy and the effectiveness of this method is validated by C-arm images of the cadaver bone experiment. |
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| Keywords: | X-ray geometric correction image registration image mosaic |
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