Weighted reconstruction of three-dimensional refractive index in interferometric tomography

被引：8

作者：

Tomioka, Satoshi ^{[1
]}

Nishiyama, Shusuke ^{[1
]}

Miyamoto, Naoki ^{[2
]}

Kando, Daichi ^{[3
]}

Heshmat, Samia ^{[4
]}

机构：

[1] Hokkaido Univ, Fac Engn, Kita Ku, North 13,West 8, Sapporo, Hokkaido 0608628, Japan

[2] Hokkaido Univ Hosp, Kita Ku, North 14,West 5, Sapporo, Hokkaido 0608648, Japan

[3] Hokkaido Univ, Grad Sch Engn, Kita Ku, North 13,West 8, Sapporo, Hokkaido 0608628, Japan

[4] Aswan Univ, Fac Engn, Aswan 81542, Egypt

来源：

APPLIED OPTICS | 2017年 / 56卷 / 24期

基金：

日本学术振兴会;

关键词：

POSITRON-EMISSION-TOMOGRAPHY; ITERATIVE RECONSTRUCTION; IMAGE-RECONSTRUCTION; PHASE; ALGORITHM; FLAME; PHOTOGRAPHY; COMPENSATOR; SYSTEM; FIELDS;

D O I：

10.1364/AO.56.006755

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Interferometric tomography can reconstruct 3D refractive-index distributions through phase-shift measurements for different beam angles. To reconstruct a complex refractive-index distribution, many projections along different directions are required. For the purpose of increasing the number of the projections, we earlier proposed a beam-angle-controllable interferometer with mechanical stages; however, the quality of reconstructed distribution by conventional algorithms was poor because the background fringes cannot be precisely controlled. To improve the quality, we propose a weighted reconstruction algorithm that can consider projection errors. We demonstrate the validity of the weighted reconstruction through simulations and a reconstruction from experimental data for three candle flames. (C) 2017 Optical Society of America

引用

页码：6755 / 6764

页数：10

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