A non-linear iterative method for multi-layer DOT sub-surface imaging system

Author

Hsiang-Wen Hou ; Shih-Yang Wu ; Hao-Jan Sun ; Wai-Chi Fang

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2014

fDate

26-30 Aug. 2014

Firstpage

198

Lastpage

201

Abstract

Diffuse Optical Tomography (DOT) has become an emerging non-invasive technology, and has been widely used in clinical diagnosis. Functional near-infrared (FNIR) is one of the important applications of DOT. However, FNIR is used to reconstruct two-dimensional (2D) images for the sake of good spatial and temporal resolution. In this paper we propose a multiple-input and multiple-output (MIMO) based data extraction algorithm method in order to increase the spatial and temporal resolution. The non-linear iterative method is used to reconstruct better resolution images layer by layer. In terms of theory, the simulation results and original images are nearly identical. The proposed reconstruction method performs good spatial resolution, and has a depth resolutions capacity of three layers.

Keywords

MIMO systems; biomedical optical imaging; feature extraction; image reconstruction; image resolution; iterative methods; medical image processing; nonlinear systems; optical tomography; spatiotemporal phenomena; DOT applications; FNIR method; MIMO based data extraction algorithm; clinical diagnosis; depth resolution capacity; diffuse optical tomography; functional near-infrared method; image resolution; multilayer DOT subsurface imaging system; multiple-input multiple-output method; noninvasive technology; nonlinear iterative method; simulation; spatial resolution; temporal resolution; two-dimensional image reconstruction; Absorption; Convergence; Detectors; Equations; Image reconstruction; Mathematical model; Spatial resolution; Diffuse Optical Tomography; Iterative Method; Monte Carlo; Reconstruction Algorithm; Spatial Resolution; Three Dimensional;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1557-170X

Type

conf

DOI

10.1109/EMBC.2014.6943563

Filename

6943563