THREE DIMENSIONAL MEASUREMENTS OF NEAR-INFRARED TOMOGRAPHY

近红外断层扫描的三维测量

• 批准号: 11555111
• 负责人: YOSHIMURA Takeaki
• 金额: $ 7.74万
• 依托单位: KOBE UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555111/
• 关键词: bio-tissue; tomography; interferometry; OFDR; OCDR; OCT; ballistic light; multiple scattering; 光周波数走査; トモグラフィ; 生体断層像; ビート周波数; 近赤外光; 同時測定

Optical coherence tomography has been investigated by producing two kinds of systems, based on an optical coherence domain reflectometry and an optical frequency domain reflectometry. The results are as follows :1. Optical Coherence Domain Reflectometry (OCDR)(1) Realization of a low coherence light source which has a bandwidth of 37 nm by means of laser frequency scanning.(2) Amplitude detection and imaging of interference signals by means of variance caluculations.(3) Tomographic imaging of onion cells with a spatial resolution of 4x4x8 μ m.2. Optical Frequency Domain Reflectometry (OFDR)(1) Realization of a linearly frequency-scanned laser source without mode-hopping and synchronized resistration system for storing many flame images.(2) Improvement of a system dynamic range upto 60 dB.(3) Tomographic imaging of chikken tissue and born.

本文研究了基于光学相干域反射计和光学频域反射计的光学相干层析成像系统。研究结果如下：1.光学相干域反射技术（OCDR）（1）通过激光频率扫描实现具有37nm带宽的低相干光源。(2)用方差计算法对干扰信号进行幅度检测和成象。(3)洋葱细胞的层析成像，空间分辨率为4x4x8 μ m。光频域反射技术（OFDR）（1）实现了无跳模的线性频率扫描激光光源和同步电阻系统，用于存储多幅火焰图像。(2)系统动态范围提高到60 dB。(3)鸡胚组织和出生时的断层成像。

项目成果

Takeaki Yoshimura: "Tomographic measurements of an optical frequency modulation interferometer"O plus E. 21-7. 850-856 (1999)

Takeaki Yoshimura：“光学调频干涉仪的断层摄影测量”O plus E.21-7。

吉村武晃: "光の干渉を利用した生体組織の三次元計測技術"応用物理. 69. 655-658 (2000)

Takeaki Yoshimura：“利用光学干涉的生物组织三维测量技术”应用物理69。655-658（2000）。

Hajime Hiratsuka: "Optical coherence tomography system based on synthesis of optical coherence function with a wavelength-scanning laser source"Opt.Rev.. 7. 442-447 (2000)

Hajime Hiratsuka：“基于光学相干函数与波长扫描激光源合成的光学相干断层扫描系统”Opt.Rev.. 7. 442-447 (2000)

吉村武晃: "光周波数変調干渉法による断層計測"O plus E. 21・7. 850-856 (1999)

Takeaki Yoshimura：“使用光学频率调制干涉测量的断层测量”O plus E. 850-856 (1999)。

吉村武晃: "光周波数変調干渉法による断層計測"O plus E. 21. 850-856 (1999)

Takeaki Yoshimura：“使用光学频率调制干涉测量的断层测量”O plus E.21.850-856（1999）