Galerkin-based meshless methods for photon transport in the biological tissue

	Galerkin-based meshless methods for photon transport in the biological tissue
	Qin, Chenghu; Tian, Jie; Yang, Xin; Liu, Kai; Yan, Guorui; Feng, Jinchao; Lv, Yujie; Xu, Min
刊名	OPTICS EXPRESS
	2008-12-08
卷号	16 期号:25 页码:20317-20333
关键词	Light propagation in tissues Medical and biological imaging Photon migration
通讯作者	Tian, Jie
英文摘要	As an important small animal imaging technique, optical imaging has attracted increasing attention in recent years. However, the photon propagation process is extremely complicated for highly scattering property of the biological tissue. Furthermore, the light transport simulation in tissue has a significant influence on inverse source reconstruction. In this contribution, we present two Galerkin-based meshless methods (GBMM) to determine the light exitance on the surface of the diffusive tissue. The two methods are both based on moving least squares (MLS) approximation which requires only a series of nodes in the region of interest, so complicated meshing task can be avoided compared with the finite element method (FEM). Moreover, MLS shape functions are further modified to satisfy the delta function property in one method, which can simplify the processing of boundary conditions in comparison with the other. Finally, the performance of the proposed methods is demonstrated with numerical and physical phantom experiments. (C) 2008 Optical Society of America
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Optics
研究领域[WOS]	Optics
关键词[WOS]	BIOLUMINESCENCE TOMOGRAPHY ; RECONSTRUCTION METHOD ; SCATTERING MEDIA ; GENE-EXPRESSION ; HUMAN HEAD ; LIGHT ; PROPAGATION ; SIMULATION ; BOUNDARY ; SYSTEM
收录类别	SCI
语种	英语
WOS记录号	WOS:000261563100017
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/9635]
专题	自动化研究所_09年以前成果
作者单位	Chinese Acad Sci, Inst Automat, Med Image Proc Grp, Key Lab Complex Syst & Intelligence Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Qin, Chenghu,Tian, Jie,Yang, Xin,et al. Galerkin-based meshless methods for photon transport in the biological tissue[J]. OPTICS EXPRESS,2008,16(25):20317-20333.
APA	Qin, Chenghu.,Tian, Jie.,Yang, Xin.,Liu, Kai.,Yan, Guorui.,...&Xu, Min.(2008).Galerkin-based meshless methods for photon transport in the biological tissue.OPTICS EXPRESS,16(25),20317-20333.
MLA	Qin, Chenghu,et al."Galerkin-based meshless methods for photon transport in the biological tissue".OPTICS EXPRESS 16.25(2008):20317-20333.