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Sensors 2018, 18(4), 1188; https://doi.org/10.3390/s18041188

Research on a Visual Electronic Nose System Based on Spatial Heterodyne Spectrometer

College of Communication Engineering, Chongqing University, 174 Sha Pingba, Chongqing 400044, China
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Received: 13 March 2018 / Revised: 9 April 2018 / Accepted: 11 April 2018 / Published: 13 April 2018
(This article belongs to the Section Physical Sensors)
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Abstract

Light absorption gas sensing technology has the characteristics of massive parallelism, cross-sensitivity and extensive responsiveness, which make it suitable for the sensing task of an electronic nose (e-nose). With the performance of hyperspectral resolution, spatial heterodyne spectrometer (SHS) can present absorption spectra of the gas in the form of a two dimensional (2D) interferogram which facilitates the analysis of gases with mature image processing techniques. Therefore, a visual e-nose system based on SHS was proposed. Firstly, a theoretical model of the visual e-nose system was constructed and its visual maps were obtained by an experiment. Then the local binary pattern (LBP) and Gray-Level Co-occurrence Matrix (GLCM) were used for feature extraction. Finally, classification algorithms based on distance similarity (Correlation coefficient (CC); Euclidean distance to centroids (EDC)) were chosen to carry on pattern recognition analysis to verify the feasibility of the visual e-nose system. View Full-Text
Keywords: visual e-nose; SHS; gas sensing; feature extraction; pattern recognition visual e-nose; SHS; gas sensing; feature extraction; pattern recognition
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Zhang, W.; Tian, F.; Song, A.; Hu, Y. Research on a Visual Electronic Nose System Based on Spatial Heterodyne Spectrometer. Sensors 2018, 18, 1188.

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