@article{10902/840, year = {2009}, month = {9}, url = {http://hdl.handle.net/10902/840}, abstract = {Plasma optical spectroscopy is widely employed in on-line welding diagnostics. The determination of the plasma electron temperature, which is typically selected as the output monitoring parameter, implies the identification of the atomic emission lines. As a consequence, additional processing stages are required with a direct impact on the real time performance of the technique. The line-to-continuum method is a feasible alternative spectroscopic approach and it is particularly interesting in terms of its computational efficiency. However, the monitoring signal highly depends on the chosen emission line. In this paper, a feature selection methodology is proposed to solve the uncertainty regarding the selection of the optimum spectral band, which allows the employment of the line-tocontinuum method for on-line welding diagnostics. Field test results have been conducted to demonstrate the feasibility of the solution.}, publisher = {MDPI}, publisher = {Sensors, 2009, 9(10), 7753-7770}, title = {Defect detection in arc-welding processes by means of the line-to-continuum method and feature selection}, author = {García Allende, Pilar Beatriz and Mirapeix Serrano, Jesús María and Conde Portilla, Olga María and Cobo García, Adolfo and López Higuera, José Miguel}, }