Parameters Inversion Algorithm of Biological Tissues Based on a Neural Network Model

Ge Xu; Liquan Dong; Lingqin Kong; Yuejin Zhao; Ming Liu; Mei Hui; Xiaohua Liu; Falong Wang; Jing Yuan

doi:10.3788/AOS202141.1117001

Acta Optica Sinica, Volume. 41, Issue 11, 1117001(2021)

Parameters Inversion Algorithm of Biological Tissues Based on a Neural Network Model

Ge Xu, Liquan Dong^*, Lingqin Kong, Yuejin Zhao, Ming Liu, Mei Hui, Xiaohua Liu, Falong Wang, and Jing Yuan

Beijing Key Laboratory for Precision Optoelectronic Measurement Instrument and Technology, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China

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Fig. 1. Topological structure of BP neural network model

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Fig. 2. Neural network inversion algorithm

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Fig. 3. Inversion of absorption and scattering coefficients in 2-point detection distance (r=0.1 cm and r=0.3 cm). (a) Inversion of absorption coefficient; (b) inversion of scattering coefficient

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Fig. 4. Comparison of absorption coefficient obtained by neural network inversion algorithm and MCML

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Fig. 5. Comparison of scattering coefficient obtained by neural network inversion algorithm and MCML

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Table 1. MAE and R² of absorption and scattering coefficients in multi-point detection distances retrieved with neural network algorithm

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Table 1. MAE and R² of absorption and scattering coefficients in multi-point detection distances retrieved with neural network algorithm

Detectiondistance point	MAE		R²
Detectiondistance point	μ_a /cm^-1	μ_s /cm^-1	μ_a /cm^-1	μ_s /cm^-1
2-point	0.003	1.574	0.9997	0.9915
4-point	0.002	2.105	0.9999	0.9833
6-point	0.001	1.552	0.9999	0.9844
8-point	0.001	1.848	0.9999	0.9847
10-point	0.002	1.426	0.9998	0.9869
12-point	0.003	3.008	0.9995	0.9498
14-point	0.005	3.389	0.9990	0.9142

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Ge Xu, Liquan Dong, Lingqin Kong, Yuejin Zhao, Ming Liu, Mei Hui, Xiaohua Liu, Falong Wang, Jing Yuan. Parameters Inversion Algorithm of Biological Tissues Based on a Neural Network Model[J]. Acta Optica Sinica, 2021, 41(11): 1117001

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Paper Information

Category: Medical Optics and Biotechnology

Received: Sep. 27, 2020

Accepted: Jan. 8, 2021

Published Online: Jun. 7, 2021

The Author Email: Dong Liquan (kylind@bit.edu.cn)

DOI:10.3788/AOS202141.1117001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. MAE and R2 of absorption and scattering coefficients in multi-point detection distances retrieved with neural network algorithm

Table 1. MAE and R2 of absorption and scattering coefficients in multi-point detection distances retrieved with neural network algorithm

Table 1. MAE and R² of absorption and scattering coefficients in multi-point detection distances retrieved with neural network algorithm

Table 1. MAE and R² of absorption and scattering coefficients in multi-point detection distances retrieved with neural network algorithm