| 一种新的闪光照相图象边界检测方法 |
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| 引用本文： | 管永红,刘瑞根,周俸才.一种新的闪光照相图象边界检测方法[J].光子学报,1999,28(2):161-164. |
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| 作者姓名： | 管永红 刘瑞根 周俸才 |
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| 作者单位： | 中国工程物理研究院流体物理研究所,成都,610003 |
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| 摘 要： | 介绍了一种用于闪光X光照相图象的边界检测方法,称为计算对比法.对于投影成象,由于成象系统的非理想特性,实际照相特性的边界与理想成象图象的边界之间往往存在一位置差,我们称之为边界退化量.模糊图象的边界检测问题主要就是边界退化量的检测问题.本文提出的计算对比法根据闪光X光照相图象的退化模型进行计算模拟成象,用从模拟图象上得出的边界退化量对实际成象图象的位置进行校正.从而达到精确检测实际图象的目的.用这种方法对多幅模拟成象图象进行了处理.
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| 关 键 词： | 闪光X光照相 图象处理 边界检测 |
| 收稿时间： | 1998-10-23 |
| 修稿时间： | 1998－10－23 |
A NEW EDGE DETECTION METHOD FOR FLASH RADIOGRAPHIC IMAGE |
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| Guan Yonghong,Liu Ruigen,Zhou Fengcai.A NEW EDGE DETECTION METHOD FOR FLASH RADIOGRAPHIC IMAGE[J].Acta Photonica Sinica,1999,28(2):161-164. |
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| Authors: | Guan Yonghong Liu Ruigen Zhou Fengcai |
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| Institution: | Institute of Fluid Physics, China Academy of Engineering physics, Chengdu 610003 |
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| Abstract: | A new edge detection method named Calculation Comparing Method,for flash radiographic image was described.Because of degradation,the edge in blur image has a shift relative to the ideal edge,we named it as edge shift.The key to edge detection is how to determine the edge shift.The imaging process of the flash radiography based on imaging model was simulated,and the key parameters of edge shift were got.Using these parameters,the edge position of the blurred image was adjusted.With this method,several images were processed and the results confirmed the method. |
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| Keywords: | Flash radiography Image process Edge detection |
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