| 有效探测区域的内窥式漫射层析成像图像重构算法 |
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| 引用本文： | 秦转萍,赵会娟,周晓青,杨彦双,高峰.有效探测区域的内窥式漫射层析成像图像重构算法[J].光学学报,2011(11):230-236. |
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| 作者姓名： | 秦转萍 赵会娟 周晓青 杨彦双 高峰 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院生物医学工程与科学仪器系; |
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| 基金项目： | 国家自然科学基金(30870657,30970775); 国家高技术研究发展计划(2009AA02Z413); 天津市自然科学基金(09JCZDJC18200,10JCZDJC17300)资助课题 |
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| 摘 要： | 为了减少近红外漫射光内窥式成像设备的造价和图像重构时间,提出了有效探测区域检测方法和相应的内窥式图像重构算法,用于实现对吸收系数和约化散射系数的同时重构.首先采用蒙特卡罗模拟研究了某源点激励下的有效探测区域；其次发展了基于有效探测区域的图像重构算法；最后讨论了有效探测区域内测量点数对重构结果的影响,并用模拟数据验证了所...
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| 关 键 词： | 医用光学 频域漫射层析成像 有效探测区域 蒙特卡罗模拟 内窥式 宫颈癌 |
Image Reconstruction Algorithm for Endoscopic Diffuse Optical Tomography Based on Effective Detection Area |
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| Qin Zhuanping Zhao Huijuan Zhou Xiaoqing Yang Yanshuang Gao Feng.Image Reconstruction Algorithm for Endoscopic Diffuse Optical Tomography Based on Effective Detection Area[J].Acta Optica Sinica,2011(11):230-236. |
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| Authors: | Qin Zhuanping Zhao Huijuan Zhou Xiaoqing Yang Yanshuang Gao Feng |
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| Institution: | Qin Zhuanping Zhao Huijuan Zhou Xiaoqing Yang Yanshuang Gao Feng(Biomedical Engineering and Scientific Instrument Department,College of Precision Instrument and Opto-Electronics Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | To reduce the cost of near-infrared endoscopic image equipment and the reconstruction time,a measurement method based on the effective detection area is proposed and the corresponding algorithm which simultaneously reconstructs the absorption coefficient and the reduced scattering coefficient is developed.Firstly,the effective detection area corresponding to an irradiation point is investigated with the Monte Carlo simulation.Secondly,the image reconstruction algorithm based on the effective detection area ... |
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| Keywords: | medical optics frequency-domain diffuse optical tomography effective detection area Monte-Carlo simulation endoscopic cervical cancer |
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