Title
Machine vision system for automated spectroscopy
Abstract
This paper describes a novel system based on the machine vision and machine learning techniques for fully automated, real-time identification of constituent elements in a sample specimen using laser-induced breakdown spectroscopy (LIBS) images. The proposed system is developed as a compact spectrum analyzer for rapid element detection using a commercially available video camera. We proposed a correlation-based pattern matching algorithm for analyzing single element spectra. However, the use of a high-speed laser and presence of numerous imperfections in the experimental setup require advanced techniques for analyzing multi-element spectra. We cast the element detection problem as a multi-label classification problem that uses support vector machines and artificial neural networks for multi-element classification. The proposed algorithms were evaluated using actual LIBS images. The machine learning approaches yielded correct identification of elements to an accuracy of 99%. Our system is useful in instances where a qualitative analysis is sufficient over a quantitative element analysis.
Year
DOI
Venue
2012
10.1007/s00138-011-0338-8
Mach. Vis. Appl.
Keywords
Field
DocType
Laser-induced breakdown spectroscopy,LIBS,Element identification,Machine vision,SVM,Multi-label classification
String searching algorithm,Computer vision,Laser-induced breakdown spectroscopy,Pattern recognition,Machine vision,Computer science,Support vector machine,Multi-label classification,Artificial intelligence,Video camera,Artificial neural network,Spectrum analyzer
Journal
Volume
Issue
ISSN
23
1
0932-8092
Citations 
PageRank 
References 
2
0.51
11
Authors
3
Name
Order
Citations
PageRank
Eranga Ukwatta115418.10
Jagath Samarabandu213320.50
Mike Hall320.51