The forward and inverse models in time-resolved optical tomography imaging and their finite-element method solutions
文献类型：期刊论文
| 作者 | Gao, F; Niu, H; Zhao, H; Zhang, H |
| 刊名 | image and vision computing
 |
| 出版日期 | 1998-07-01 |
| 卷号 | 16期号:9-10页码:703-712 |
| 关键词 | optical tomography finite-element method image reconstruction inverse problem |
| 英文摘要 | 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. |
| WOS标题词 | science & technology ; technology ; physical sciences |
| 类目[WOS] | computer science, artificial intelligence ; computer science, software engineering ; computer science, theory & methods ; engineering, electrical & electronic ; optics |
| 研究领域[WOS] | computer science ; engineering ; optics |
| 关键词[WOS] | absorption ; tissues ; light |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000074764800010 |
| 公开日期 | 2015-11-02 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/25374]  |
| 专题 | 西安光学精密机械研究所_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. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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