| 基于频域滤波的THz图像条纹噪声处理 |
| |
| 引用本文： | 邹园园,葛庆平,韩煜,沈兰溪,张存林. 基于频域滤波的THz图像条纹噪声处理[J]. 计算机工程与应用, 2009, 45(17): 241-243. DOI: 10.3778/j.issn.1002-8331.2009.17.073 |
| |
| 作者姓名： | 邹园园 葛庆平 韩煜 沈兰溪 张存林 |
| |
| 作者单位： | 1.首都师范大学 信息工程学院，北京 100037 2.首都师范大学 物理系，北京 100037 |
| |
| 摘 要： | 太赫兹在安全检查、医疗诊断、特别是在无损检测领域等方面都有广阔的应用前景，在利用0.2 THz连续CW系统检测航天所用的燃料箱泡沫板隔离层的粘合效果研究中，条纹噪声严重影响了图像的效果。针对这个问题，分析了条纹噪声的特征，提出了一种基于图像幅度谱的投影图自动确定噪声频率的算法，利用ButterWorth带阻滤波器对THz图像中条纹噪声进行处理，在滤除噪声的同时较好地保留了图像的细节信息。
|
| 关 键 词： | 太赫兹 条纹噪声 频率选择 带阻滤波器 去噪 |
| 收稿时间： | 2008-05-14 |
| 修稿时间： | 2008-7-28 |
Stripe noise of THz image prcessing based on frequency filtering |
| |
| ZOU Yuan－yuan,GE Qing－ping,HAN Yu,SHEN Lan-xi,ZHANG Cun－lin. Stripe noise of THz image prcessing based on frequency filtering[J]. Computer Engineering and Applications, 2009, 45(17): 241-243. DOI: 10.3778/j.issn.1002-8331.2009.17.073 |
| |
| Authors: | ZOU Yuan－yuan GE Qing－ping HAN Yu SHEN Lan-xi ZHANG Cun－lin |
| |
| Affiliation: | 1.Department of Information Engineering College，Capital Normal University，Beijing 100037，China 2.Department of Physics，Capital Normal University，Beijing 100037，China |
| |
| Abstract: | There is a tremendous prospect of THz imaging in the safety testing，medical rsearch and nondestructive testing，etc.In the research using CW THz imaging technology to debond in space shuttle insulating foam，the noise severely affects the future image processing.By analyzing the characteristics of the stripe noise of terahertz image，an algorithm，based on that image projection of the spectrum automatically determines the frequency of noise，is presented，which uses ButterWorth band stop filter to deal with the stripe noise.The result shows that stripe noise is removed and the image details are reserved. |
| |
| Keywords: | THz stripe noise band stop filter de-nosing |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程与应用》浏览原始摘要信息 |
|
点击此处可从《计算机工程与应用》下载免费的PDF全文 |
