scholarly journals Micromachined Fiber Optical Sensor for In Vivo Measurement of Optical Properties of Human Skin

2008 ◽  
Vol 8 (10) ◽  
pp. 1698-1703 ◽  
Author(s):  
Alejandro Garcia-Uribe ◽  
Karthik Chinna Balareddy ◽  
Jun Zou ◽  
Lihong V. Wang
Keyword(s):  
Optical Properties ◽  
Human Skin ◽  
Optical Sensor ◽  
In Vivo Measurement ◽  
Fiber Optical Sensor ◽  
Fiber Optical

scholarly journals Machine learning estimation of tissue optical properties

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Brett H. Hokr ◽  
Joel N. Bixler
Keyword(s):  
Neural Network ◽  
Optical Properties ◽  
Biological Tissues ◽  
Homogeneous Layer ◽  
In Vivo Measurement ◽  
Tissue Optical Properties ◽  
The Neural Network ◽  
Spatio Temporal ◽  
Fully Connected

AbstractDynamic, in vivo measurement of the optical properties of biological tissues is still an elusive and critically important problem. Here we develop a technique for inverting a Monte Carlo simulation to extract tissue optical properties from the statistical moments of the spatio-temporal response of the tissue by training a 5-layer fully connected neural network. We demonstrate the accuracy of the method across a very wide parameter space on a single homogeneous layer tissue model and demonstrate that the method is insensitive to parameter selection of the neural network model itself. Finally, we propose an experimental setup capable of measuring the required information in real time in an in vivo environment and demonstrate proof-of-concept level experimental results.

scholarly journals A Research on Low Modulus Distributed Fiber Optical Sensor for Pavement Material Strain Monitoring

Sensors ◽  
2017 ◽  
Vol 17 (10) ◽  
pp. 2386 ◽  
Author(s):  
Lingjian Meng ◽  
Linbing Wang ◽  
Yue Hou ◽  
Guannan Yan
Keyword(s):  
Optical Sensor ◽  
Fiber Optical Sensor ◽  
Strain Monitoring ◽  
Fiber Optical ◽  
Low Modulus ◽  
Pavement Material

Measurement of the Optical Properties of Muscle Tissue In Vivo

2000 ◽  
Author(s):  
P. L. Kopsombut ◽  
D. Willis ◽  
A. E. Schen ◽  
L. X. Xu ◽  
X. Xu
Keyword(s):  
Optical Properties ◽  
Transport Theory ◽  
Rapid Development ◽  
Ccd Camera ◽  
High Sensitivity ◽  
Biological Tissues ◽  
In Vivo Measurement ◽  
Living Tissues

Abstract Along with rapid development of diagnostic and therapeutic applications of lasers in medicine, optical properties of various biological tissues have been extensively studied [1]. Most of the studies were performed in vitro owing to the complexity involved in in vivo measurement. To date, it is well understood that living tissue is an absorbing and scattering heterogeneous medium because of its complex structures including blood network. The transport theory cannot be readily used due to the heterogeneity and the absence of the optical properties of living tissues [2]. In this research, we have developed a procedure for measuring the total attenuation coefficient (μ1) of the exteriorized rat 2-D spinotrapezius muscle in the wavelength ranged from 480–560 nm using the collimated light from a Nitrogen-pumped dye laser and a high-sensitivity CCD camera.

Application of multimode fiber optical sensor in optical tomography technology

2005 ◽  
Vol 43 (10) ◽  
pp. 1159-1166
Author(s):  
Shi Zhiwei ◽  
Zhou Huan ◽  
Li Yang ◽  
Zeng Yanhua
Keyword(s):  
Optical Sensor ◽  
Optical Tomography ◽  
Multimode Fiber ◽  
Fiber Optical Sensor ◽  
Fiber Optical
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