| X射线实时成像器件缺陷校正方法的研究 |
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| 引用本文： | 杜剑,魏东波,路宏年.X射线实时成像器件缺陷校正方法的研究[J].北京航空航天大学学报,2003,29(1):50-53. |
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| 作者姓名： | 杜剑 魏东波 路宏年 |
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| 作者单位： | 北京航空航天大学 机械工程及自动化学院 |
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| 摘 要： | 对于由射线转换屏和CCD相机组成的X射线实时成像系统而言,成像器件缺陷是影响系统成像质量的重要因素.结合工程实践,分析了射线转换屏缺陷、CCD像元光响应不一致性等成像器件缺陷的特性及其成像规律,提出了一种数学模型和成像器件缺陷校正方法.实验结果表明,该方法对消除成像器件缺陷造成的图像降质有较好的效果.
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| 关 键 词： | 放射照相 图像处理 灰度 射线转换屏 |
| 文章编号： | 1001-5965(2003)01-0050-04 |
| 收稿时间： | 2001-08-15 |
| 修稿时间： | 2001年8月15日 |
Rectification of Imaging Device Defections in Real Time Radiographic Inspection |
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| Du Jian,Wei Dongbo,Lu Hongnian.Rectification of Imaging Device Defections in Real Time Radiographic Inspection[J].Journal of Beijing University of Aeronautics and Astronautics,2003,29(1):50-53. |
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| Authors: | Du Jian Wei Dongbo Lu Hongnian |
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| Institution: | School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics |
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| Abstract: | Converter screen and CCD camera are the main imaging devices in real\|time radiographic inspection. Their defections are important factors affecting image quality. Based on experimental results, formation and characteristics of these defections were analyzed, a new mathematic model and a rectification method based on gray\|scale compensation were presented. It was indicated through experiments that this method is efficient in the rectification of the imaging device defections, with the least loss of useful information. |
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| Keywords: | radiography image processing gray scale converter screen |
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