基于时间分辨测量的近红外光三维层析成像研究  

Three Dimensional Image Reconstruction for Time-Resolved Diffuse Optical Tomography

作　　者：赵会娟[1,2,3] 王召霞[2] 姜颖婷[2] 高峰[2] TANIKAWA Yukari YAMADA Yukio 

机构地区：[1]天津大学,精密测试技术及仪器国家重点实验室,天津300072 [2]天津大学,精密仪器与光电子工程学院生物医学工程系,天津300072 [3]National Institute of Advanced Industrial Science and Technology(AIST),1-2 Namiki,Tsukuba,Ibaraki 305-8564,Japan [4]University of Electro-Communications,1-5-1 Chofugaoka,Chofu,Tokyo 182-8585,Japan

出　　处：《光子学报》2008年第8期1580-1584,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(60678049和60578008)资助

摘　　要：针对近红外漫射光层析成像中的三维成像问题展开了理论和实验研究.利用开发的以强度和平均飞行时间作为数据类型的三维重建算法对数值仿真模型进行了重建,同时采用多通道时间相关单光子计数层析成像系统对固体样品进行了三维成像.结果表明:所发展的算法较忠实地重建出了样品内部的异质体结构;采用的差分重建方法有利于提高重建的抗噪性能;提出的单层测头配置模式对于三维成像具有实际意义.The three dimensional image reconstruction for near infrared diffuse optical tomography based on time-resolved measurement is studied. The reconstruction algorithm developed and the single plane measurement mode was evaluated on two simulated cylindrical models with two and three inclusions, respectively,and a solid phantom measured using a multichannel time-resolved single photon counting optical tomographic system. Reconstructed images show that the image reconstruction algorithm revealed the distribution of the heterogeneities, differential imaging method is in favor of the image reconstruction from noisy experimental data, and one plane measurement mode has great significance for 3-D optical tomography in clinical application.

关 键 词：近红外光 时间分辨 三维 光学层析成像 

分 类 号：TN304.18[电子电信—物理电子学] P631.4[天文地球—地质矿产勘探]