|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
|Source Publication||OPTICS EXPRESS
|Abstract||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|
|Keyword||Light Propagation In Tissues
Medical And Biological Imaging
|WOS Headings||Science & Technology
; Physical Sciences
|WOS Keyword||BIOLUMINESCENCE TOMOGRAPHY
; RECONSTRUCTION METHOD
; SCATTERING MEDIA
; HUMAN HEAD
|WOS Research Area||Optics
|Corresponding Author||Tian, Jie|
|Affiliation||Chinese Acad Sci, Inst Automat, Med Image Proc Grp, Key Lab Complex Syst & Intelligence Sci, Beijing 100190, Peoples R China|
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.
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.
Qin, Chenghu,et al."Galerkin-based meshless methods for photon transport in the biological tissue".OPTICS EXPRESS 16.25(2008):20317-20333.
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