Chem. J. Chinese Universities ›› 2018, Vol. 39 ›› Issue (7): 1434.doi: 10.7503/cjcu20170830

• Analytical Chemistry • Previous Articles     Next Articles

Biological Tissue Recognition Based on X-Ray Absorption Spectral Detection

WANG Qian, YANG Zheng, FANG Zheng*()   

  1. Department of Instrumental and Electrical Engineering, Xiamen University,Xiamen 361005, China
  • Received:2017-12-18 Online:2018-07-10 Published:2018-06-21
  • Contact: FANG Zheng E-mail:fangzheng@xmu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.61571381).

Abstract:

In order to verify the ability of X-ray absorption spectroscopy to recognize biological tissues, porcine heart, liver, kidney, stomach, lean meat and fat are selected as specimens. The X-ray absorption spectra of these specimens are obtained by X-ray detector at the excitation voltage of 55 kV. The collected spectra are divided into training set and test set, and principal component analysis is used to extract spectral principal component. Using the training set as input, a radial basis function(RBF) neural network model is established to predict the samples of the test set. The recognition rate of all samples through cross-validation method reached 90.22%. The experimental results show that X-ray spectral technique coupled with statistical analysis methods can be used for the classification of pig tissue, which is of great significance to the application of X-ray spectral technique in organism identification.

Key words: X-Ray absorption spectrum, Biological tissue, Material recognition, Radial basis function(RBF) neural network

CLC Number: 

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