A hybrid p1-DP0 diffusion theory for optical imaging

	A hybrid p1-DP0 diffusion theory for optical imaging
	Liu, Kai; Tian, Jie; Qin, Chenghu; Liu, Dan; Yang, Xin; Xu, Min
	2009
会议名称	Progress in Biomedical Optics and Imaging - SPIE
会议录名称	Progress in Biomedical Optics and Imaging - SPIE
会议日期	2009
会议地点	United States San Diego
摘要	In optical imaging, although the standard P1 diffusion theory is widely used, its angular flux at boundary isdiscontinuous, and this model is not incapable of exactly modeling light transport in biological tissue withpartially-reflective boundary. In this work, we present a hybrid P1-DP0 (P1 spherical harmonics-double DP0 spherical harmonics) diffusion theory in 3D environment, which effectively interpolates between the P1 and DP0 approximation by a space-dependent weight factor α(r) that controls the local angular approximation.Comparing to the P1 model, the solutions of our model are consistently accurate over a broad range of optical properties. Moreover, with the same reduced scattering and absorption properties, the hybrid model for high anisotropic scattering which is the common case for mammal tissue is more accurate than the low one. Finally,this theory is validated by Monte Carlo simulations.
关键词	Diffusion Optical Imaging Scattering Tissues
收录类别	EI
文献类型	会议论文
条目标识符	http://ir.ia.ac.cn/handle/173211/5419
专题	中国科学院分子影像重点实验室
通讯作者	Tian, Jie
推荐引用方式 GB/T 7714	Liu, Kai,Tian, Jie,Qin, Chenghu,et al. A hybrid p1-DP0 diffusion theory for optical imaging[C],2009.

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