Fast autofocusing in digital holography using the magnitude differential
文献类型：期刊论文
| 作者 | Lyu, Meng; Situ, Guohai; Li, Dayan; Yuan, Caojin |
| 刊名 | Appl. Optics
 |
| 出版日期 | 2017 |
| 卷号 | 56期号:13页码:F152 |
| 通讯作者 | ghsitu@siom.ac.cn |
| 英文摘要 | Typical methods of automatic estimation of focusing in digital holography calculate every single reconstructed frame to get a critical function and then ascertain the focal plane by finding the extreme value of that function. Here, we propose a digital holographic autofocusing method that computes the focused distance using the first longitudinal difference of the magnitude of the reconstructed image. We demonstrate the proposed method with both numerical simulations and optical experiments of amplitude-contrast and phase-contrast objects. The results suggest that the proposed method performs better than other existing methods, in terms of applicability and computation efficiency, with potential applications in industrial and biomedical inspections where automatic focus tracking is necessary. (C) 2017 Optical Society of America |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China (NSFC) [61327902, 61377005]; Chinese Academy of Sciences (CAS) [QYZDB-SSW-JSC002] |
| WOS记录号 | WOS:000400503900024 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/28492]  |
| 专题 | 上海光学精密机械研究所_信息光学与光电技术实验室 |
| 作者单位 | 中国科学院上海光学精密机械研究所 |
| 推荐引用方式 GB/T 7714 | Lyu, Meng,Situ, Guohai,Li, Dayan,et al. Fast autofocusing in digital holography using the magnitude differential[J]. Appl. Optics,2017,56(13):F152. |
| APA | Lyu, Meng,Situ, Guohai,Li, Dayan,&Yuan, Caojin.(2017).Fast autofocusing in digital holography using the magnitude differential.Appl. Optics,56(13),F152. |
| MLA | Lyu, Meng,et al."Fast autofocusing in digital holography using the magnitude differential".Appl. Optics 56.13(2017):F152. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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