Las comunicaciones Brain Computer Interface (BCI) consisten en una tecnología que permite que las personas puedan comunicarse con una máquina o un ordenador, usando para ello el cerebro y en la mayoría de los casos un casco de EEG. Este campo supone un gran reto para la ingeniería (junto con muchas otras ramas de conocimiento) y en la...
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February 10, 2017 (v1)PublicationUploaded on: March 27, 2023
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June 1, 2020 (v1)PublicationEEG Signal Processing in Motor Imagery Brain Computer Interfaces with Improved Covariance Estimators
Desde hace unos años hasta la actualidad, el desarrollo en el campo de los interfaces cerebro ordenador ha ido aumentando. Este aumento viene motivado por una serie de factores distintos. A medida que aumenta el conocimiento acerca del cerebro humano y como funciona (del que aún se conoce relativamente poco), van surgiendo nuevos avances en los...
Uploaded on: March 27, 2023 -
May 24, 2017 (v1)Publication
The Alpha-Beta Log-Det divergences for positive definite matrices are flexible divergences that are parameterized by two real constants and are able to specialize several relevant classical cases like the squared Riemannian metric, the Steins loss, the S-divergence, etc. A novel classification criterion based on these divergences is optimized...
Uploaded on: December 5, 2022 -
March 28, 2022 (v1)Publication
The common spatial pattern (CSP) method is a dimensionality reduction technique widely used in brain-computer interface (BCI) systems. In the two-class CSP problem, training data are linearly projected onto direc tions maximizing or minimizing the variance ratio between the two classes. The present contribution proves that kurto sis...
Uploaded on: March 25, 2023 -
April 1, 2022 (v1)Publication
n brain–computer interfaces (BCIs), the typical models of the EEG observations usually lead to a poor estimation of the trial covariance matrices, given the high non-stationarity of the EEG sources. We propose the application of two techniques that significantly improve the accuracy of these estimations and can be combined with a wide range of...
Uploaded on: March 25, 2023 -
May 29, 2018 (v1)Publication
Brain computer interfaces (BCIs) have been attracting a great interest in recent years. The common spatial patterns (CSP) technique is a well-established approach to the spatial filtering of the electroencephalogram (EEG) data in BCI applications. Even though CSP was originally proposed from a heuristic viewpoint, it can be also built on very...
Uploaded on: March 27, 2023 -
January 21, 2022 (v1)Publication
En este trabajo se presenta una técnica de segmentación automática de huesos en imágenes TAC sencilla y muy rápida que permite implementar la segmentación de volúmenes TAC en cuestión de pocos segundos. La segmentación automática de estructuras óseas es de especial interés para los radiólogos y cirujanos para analizar enfermedades óseas o para...
Uploaded on: December 4, 2022