| Suppression of the fluctuation effect in terahertz imaging using homomorphic filtering | |
Xu, Limin1,2; Fan, Wenhui1 ; Liu, Jia1,2
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| 作者部门 | 瞬态光学技术国家重点实验室 |
| 2013-08-10 | |
| 发表期刊 | CHINESE OPTICS LETTERS
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| ISSN | 1671-7694 |
| 卷号 | 11期号:8 |
| 产权排序 | 1 |
| 摘要 | To suppress the fluctuation effect due to laser power instability and terahertz radiation fluctuation, a homomorphic filtering method is proposed to process the terahertz images obtained from a pulsed terahertz raster scanning imaging system. The physical model of homomorphic filtering for terahertz imaging is established. The mathematical expressions are given with the specific physical meaning in accordance with the imaging principle. To demonstrate the effectiveness of the method, a homomorphic filtering experiment based on two raw terahertz images selected from the literature using a continuous-wave (CW) terahertz source is also performed. The effect of the method is compared with those described in the literature, and the advantages of homomorphic filtering are discussed. The pulsed- and CW-terahertz image processing results both show that in addition to suppressing the fluctuation effect, the method can also enhance target imaging. |
| 文章类型 | Article |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.3788/COL201311.081201 |
| 收录类别 | SCI ; EI |
| 关键词[WOS] | SUPERRESOLUTION IMAGE ; REAL-TIME ; SYSTEM ; RECONSTRUCTION ; RESTORATION ; WAVES |
| 语种 | 英语 |
| WOS研究方向 | Optics |
| 项目资助者 | Chinese Academy of Sciences(YYYJ-1123-4 ; CAS/ SAFEA International Partnership Program for Creative Research Teams ; J08-029) |
| WOS类目 | Optics |
| WOS记录号 | WOS:000323531800010 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/21806 |
| 专题 | 瞬态光学研究室 |
| 作者单位 | 1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Limin,Fan, Wenhui,Liu, Jia. Suppression of the fluctuation effect in terahertz imaging using homomorphic filtering[J]. CHINESE OPTICS LETTERS,2013,11(8). |
| APA | Xu, Limin,Fan, Wenhui,&Liu, Jia.(2013).Suppression of the fluctuation effect in terahertz imaging using homomorphic filtering.CHINESE OPTICS LETTERS,11(8). |
| MLA | Xu, Limin,et al."Suppression of the fluctuation effect in terahertz imaging using homomorphic filtering".CHINESE OPTICS LETTERS 11.8(2013). |
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| Suppression of the f（927KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY | 请求全文 | |
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