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Histogram of gradient orientations of EEG signal plots for brain computer interfaces

Ramele, Rodrigo · RI ITBA · 2018

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"Brain Computer Interface (BCI) or Brain Machine Interfaces (BMI), has proved the feasibility of a distinct non-biological communication channel to transmit information from the Central Nervous System (CNS) to a computer device. Promising success has been achieved with invasive BCI, though biocompatibilities issues and the complexity and risks of surgical procedures are the main drive to enhance current non-invasive technologies. Electroencephalography (EEG) is the most widespread method to gather information from the CNS in a non-invasive way. Clinical EEG has traditionally focused on temporal waveforms, but signal analysis methods which follow this path have been neglected in BCI research. This Thesis proposes a method and framework to analyze the waveform, the shape of the EEG signal, using the histogram of gradient orientations, a fruitful technique from Computer Vision which is used to characterize image local features. Inspiration comes from what traditionally electroencephalographers have been doing for almost a century: visually inspecting raw EEG signal plots." "Las interfaces BCI (Brain Computer Interfaces, interfaces cerebro computadora) o BMI (Brain Machine Interfaces, interfaces cerebro máquina) han surgido como un nuevo canal de comunicación entre el cerebro y las computadoras, máquinas o robots, distinto de los canales biológicos estándar. Se han obtenido resultados prometedores en el empleo de la variante invasiva de BCI pero, además de los problemas de biocompatibilidad, los procedimientos quirúrgicos requeridos son complejos y riesgosos. Estas razones, han impulsado las mejoras de las tecnologías no invasivas. La electroencefalografía (EEG) es el método más difundido para obtener información del sistema nervioso central de manera no invasiva. La electroencefalografía clínica se ha enfocado tradicionalmente en el estudio de las formas de ondas temporales, pero los métodos de procesamiento de señales que exploren esta metodología han sido ignorados en las investigaciones sobre BCI." Tesis Ingeniería Informática (doctorado) - Instituto Tecnológico de Buenos Aires, Buenos Aires, 2018

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APA 7

Ramele, R. (2018). Histogram of gradient orientations of EEG signal plots for brain computer interfaces. RI ITBA. http://ri.itba.edu.ar/handle/20.500.14769/1369

MLA

Ramele, Rodrigo. Histogram of gradient orientations of EEG signal plots for brain computer interfaces. RI ITBA, 2018. http://ri.itba.edu.ar/handle/20.500.14769/1369.

Chicago

Ramele, Rodrigo. 2018. Histogram of gradient orientations of EEG signal plots for brain computer interfaces. RI ITBA. http://ri.itba.edu.ar/handle/20.500.14769/1369.

Harvard

Ramele, R. 2018, Histogram of gradient orientations of EEG signal plots for brain computer interfaces, RI ITBA, available at: http://ri.itba.edu.ar/handle/20.500.14769/1369 [Accessed 7 Aug. 2026].

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Title
Histogram of gradient orientations of EEG signal plots for brain computer interfaces
Author / contributors
Ramele, Rodrigo
Publisher
RI ITBA
Publication year
2018
Language
English

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