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On the effect of inverse problem weighted solutions for epileptic sources localization

Peluffo-Ordóñez, Diego H. Y Acosta Muñoz, Melissa Y Paredes Argoti, Hugo Y Revelo-Fuelagán, Edgardo J (2015) On the effect of inverse problem weighted solutions for epileptic sources localization. In: 2015 20th Symposium on Signal Processing, Images and Computer Vision (STSIVA), 2 al 4 Septiembre 2015, Bogotá, Colombia.

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URL Oficial: https://ieeexplore.ieee.org/document/7330448/

Resumen

Within the context of epileptic sources localization from electroencephalographic signals, this work presents an exploratory study aimed at studying the effect of channel weighting on the estimation of the inverse problem solution. In this study, we consider two weighting approaches followed from a relevance feature analysis based on variance and energy criteria. Such approaches are compared by measuring the difference between the estimated source activity and the true power of the simulated sources in terms of the Earth mover's distance. Experimental results show that the incorporation of proper weighting factors into a LORETA-driven solution, localization may be improved. As well, the physiological phenomenon of the brain activity is more precisely tracked.

Tipo de Elemento: Conferencia o Taller artículo (Paper)
Asunto: Q Ciencias > QA Mathematics > QA75 Electronic computers. Computer science
T Tecnología > TK Electrical engineering. Electronics Nuclear engineering
Division: Facultad de Ingeniería > Programa de Ingeniería Electrónica > Productividad
Depósito de Usuario: Andres Pantoja
Fecha Deposito: 13 Sep 2018 13:31
Ultima Modificación: 13 Sep 2018 13:31
URI: http://sired.udenar.edu.co/id/eprint/4796

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