| 基于改进的等功率谱射线面像恢复技术研究 |
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| 引用本文： | 王黎明,严壮志,韩焱. 基于改进的等功率谱射线面像恢复技术研究[J]. 兵工学报, 2008, 29(4): 446-449 |
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| 作者姓名： | 王黎明 严壮志 韩焱 |
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| 作者单位： | 1．上海大学，上海200072；2．中北大学，山西太原030051 |
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| 基金项目： | 国家自然科学基金，山西省青年科研项目 |
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| 摘 要： | 通过对射线图像退化机理的研究，在分析等功率谱滤波恢复方法优缺点的基础上，结合典型图像的功率谱估计，提出了等功率谱恢复的改进算法。实际图像恢复结果表明，该算法可较好地降低图像模糊程度，能够有效保留射线图像的边缘信息，同时具有一定的通用性。
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| 关 键 词： | 材料检测与分析技术 图像恢复 等功率谱滤波 射线成像 点扩展函数 |
| 文章编号： | 1000-1093(2008)04-0446-04 |
| 修稿时间： | 2006-10-01 |
The Method of Radiographic Image Restoration Based on Improved Equivalent Power Spectrum Filter |
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| WANG Li-ming,YAN Zhuang-zhi,HAN Yan. The Method of Radiographic Image Restoration Based on Improved Equivalent Power Spectrum Filter[J]. Acta Armamentarii, 2008, 29(4): 446-449 |
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| Authors: | WANG Li-ming YAN Zhuang-zhi HAN Yan |
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| Affiliation: | 1. Shanghai University, Shanghai 200072，China;2. North University of China, Taiyuan 030051, Shanxi, China |
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| Abstract: | Scattering is a main factor wmch influences the sensitivity of radiographic system ? By study?ing the mechanism of image degradation, analyzing the advantages and disadvantages of equivalent power spectrum filter, and estimating the power spectrum of the typical images, the authors put for?ward an improved restoration method based on equivalent power spectrum filter. The practical results show that this method can depress the blur of image, effectively preserve the edge information of radio?graph, and have a certain commonalify. |
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| Keywords: | material test and analysis image restoration equivalent power spectrum filter radio-- graph point spread function |
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