The forward and inverse models in time-resolved optical tomography imaging and their finite-element method solutions

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	The forward and inverse models in time-resolved optical tomography imaging and their finite-element method solutions
	Gao, F; Niu, H; Zhao, H; Zhang, H
	1998-07-01
发表期刊	IMAGE AND VISION COMPUTING
卷号	16 期号:9-10 页码:703-712
摘要	Time-resolved optical computerized tomographic imaging has gained widespread attention in biomedical research recently because of its non-invasiveness and non-destructiveness to biological and several attempts, aimed at implementing a practical system, have been made for eliminating the obstacles arising from multiple light scattering of biological tissue. In this paper the basic principle of time-resolved optical absorption and scattering tomography is first presented. The diffusion approximation-based photon transport model in a highly scattering tissue, which offers an advantage in speed in comparison vath other stochastic models, and the procedure for solving this forward model by using the finite-element method (FEM) are then accessed. Theoretically, a commonly used iterative steepest descent algorithm for solving the inverse problem is introduced based on the FEM solution of Jacobian of the forward operator. Owing to the ill-posed Jacobian matrix of the forward operator caused by scatter-dominated photon propagation and unavoidable influence of the noise from the measurement process, a Tikhonov-Miller regularization method is applied to the inverse problem in order to provide an acceptable approximation to its solution. A universal strategy for the FEM solution to the optical tomography problem several numerically simulated images of absorbers and scatters embedded in a homogeneous tissue sample are reconstructed from either mean-time-of-flight or integrated intensity data for the verification of the approach. (C) 1998 Elsevier Science B.V. All rights reserved.
文章类型	Article
关键词	Optical Tomography Finite-element Method Image Reconstruction Inverse Problem
WOS标题词	Science & Technology ; Technology ; Physical Sciences
收录类别	SCI ; EI
关键词[WOS]	ABSORPTION ; TISSUES ; LIGHT
语种	英语
WOS研究方向	Computer Science ; Engineering ; Optics
WOS类目	Computer Science, Artificial Intelligence ; Computer Science, Software Engineering ; Computer Science, Theory & Methods ; Engineering, Electrical & Electronic ; Optics
WOS记录号	WOS:000074764800010
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.opt.ac.cn/handle/181661/25374
专题	中国科学院西安光学精密机械研究所(2010年前)
作者单位	Acad Sinica, Xian Inst Opt & Precis Mech, Xian 710068, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Gao, F,Niu, H,Zhao, H,et al. The forward and inverse models in time-resolved optical tomography imaging and their finite-element method solutions[J]. IMAGE AND VISION COMPUTING,1998,16(9-10):703-712.
APA	Gao, F,Niu, H,Zhao, H,&Zhang, H.(1998).The forward and inverse models in time-resolved optical tomography imaging and their finite-element method solutions.IMAGE AND VISION COMPUTING,16(9-10),703-712.
MLA	Gao, F,et al."The forward and inverse models in time-resolved optical tomography imaging and their finite-element method solutions".IMAGE AND VISION COMPUTING 16.9-10(1998):703-712.

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The forward and inve（924KB）	期刊论文	出版稿	限制开放	CC BY-NC-SA	请求全文