Rotation error correction by numerical focus adjustment in tomographic phase microscopy

被引：23
作者：
Jeon, Yunseong [1 ]
Hong, Chung Ki [1 ]
机构：
[1] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea
来源：
OPTICAL ENGINEERING | 2009年 / 48卷 / 10期
关键词：
digital holography; three-dimensional image acquisition; tomography; DIGITAL HOLOGRAPHIC MICROSCOPY; CONTRAST MICROSCOPY; FIBERS;
D O I：
10.1117/1.3242833
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The tomographic imaging technique in digital holography is improved and applied to the measurements of the refractive index distributions of two kinds of optical fiber. They are reconstructed from a set of quantitative phase maps obtained with a digital holographic method as the object is rotated for 180 deg. The errors of the phase maps caused by the defocusing due to the unwanted shift of the object relative to the rotation axis are corrected by numerical focus adjustment. The tomographic images of the fiber samples show the effectiveness of our method. (C) 2009 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3242833]
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页数：6
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