Experimental study of digital holographic tomography by a few projections

被引：7

作者：

Zhou Wen-Jing ^{[1
]}

Hu Wen-Tao ^{[1
]}

Guo Lu ^{[1
]}

Xu Qiang-Sheng ^{[1
]}

Yu Ying-Jie ^{[1
]}

机构：

[1] Shanghai Univ, Dept Precis Mech Engn, Shanghai 200072, Peoples R China

来源：

ACTA PHYSICA SINICA | 2010年 / 59卷 / 12期

关键词：

digital holographic technique; tomographic technique; a few projections; algebraic reconstruction technique; RECONSTRUCTION;

D O I：

10.7498/aps.59.8499

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Digital holographic tomography by a few projections is developed. A section of fiber with symmetrical structure and a plaster head model with nonsymmetrical structure are used as test samples. Both simulation analysis and experimental results are analyzed. Simulation analysis shows that the weighted coefficient w(ij) and the relaxation factor lambda affect evidently the quality of the reconstructed image, in addition, the relaxation factor lambda also influences the computer speed. Thus the weighted coefficient w(ij) is evaluated by using a nonlinear method and the relaxation factor lambda is selected appropriately by comparing several simulation reconstructions. Experimental results reveal the feasibility and the availability of digital holographic tomography by a few projections for symmetrical samples and nonsymmetrical one. In the next work, the real time digital holographic tomography based on three projections and single hologram will be developed to reconstruct the multi-refractive index of biological samples.

引用

页码：8499 / 8511

页数：13

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