| Approximate analytical optical transfer function for a wavefront-coded imaging system with two-dimensional rectangularly separable phase masks |
| Zhao, Hui ; Li, Yingcai
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| 2010-09-01
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| 发表期刊 | OPTICAL ENGINEERING
 |
| 卷号 | 49期号:9页码:093201-1~093201-10 |
| 摘要 | Wavefront coding can be used to extend the depth of field of incoherent imaging systems and is a powerful system-level technique. In order to assess the performance of a wavefront-coded imaging system, defocused optical transfer function (OTF) is the metric frequently used. Unfortunately, to the best of our knowledge, among all types of phase masks, it is usually difficult to obtain the analytical OTF except the cubic one. Although numerical computation seems good enough for performance evaluation, the approximate analytical OTF is still indispensable because it can reflect the relationship between mask parameters and system frequency response in a clearer way. Thus, a method is proposed to derive the approximate analytical OTF for two-dimensional rectangularly separable phase masks. The analytical results are well consistent with the direct numerical computations, but the proposed method can be accepted only from engineering point of view and needs rigorous proof in future. (c) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3485759] |
| 文章类型 | Article
|
| 关键词 | Wavefront-coded Imaging
Depth Of Field
Approximate Analytical Optical Transfer Function
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| 学科领域 | 计算机应用其他学科（含图像处理）
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| WOS标题词 | Science & Technology
; Physical Sciences
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| DOI | 10.1117/1.3485759
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| 收录类别 | SCI
; EI
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| 关键词[WOS] | LOGARITHMIC ASPHERE
; EXTENDED DEPTH
; CUBIC-PHASE
; FIELD
; EXTENSION
; REPRESENTATION
; ABERRATIONS
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| 语种 | 英语
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| WOS研究方向 | Optics
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| WOS类目 | Optics
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| WOS记录号 | WOS:000282370400018
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.opt.ac.cn/handle/181661/8390
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| 专题 | 空间光学技术研究室
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| 作者单位 | Chinese Acad Sci, Xian Inst Opt & Precis Mech, Space Optic Lab, Xian 710119, Shannxi, Peoples R China
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推荐引用方式
GB/T 7714 |
Zhao, Hui,Li, Yingcai. Approximate analytical optical transfer function for a wavefront-coded imaging system with two-dimensional rectangularly separable phase masks[J]. OPTICAL ENGINEERING,2010,49(9):093201-1~093201-10.
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| APA |
Zhao, Hui,&Li, Yingcai.(2010).Approximate analytical optical transfer function for a wavefront-coded imaging system with two-dimensional rectangularly separable phase masks.OPTICAL ENGINEERING,49(9),093201-1~093201-10.
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| MLA |
Zhao, Hui,et al."Approximate analytical optical transfer function for a wavefront-coded imaging system with two-dimensional rectangularly separable phase masks".OPTICAL ENGINEERING 49.9(2010):093201-1~093201-10.
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