A method and system for concentration detection

A - Human Necessities – 61 – B

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A61B 5/048 (2006.01) A61B 5/0476 (2006.01) G06F 17/16 (2006.01) G06F 17/18 (2006.01)

Patent

CA 2722691

A method and system for concentration detection. The method for concentration detection comprises the steps of extracting temporal features from brain signals; classifying the extracted temporal features using a classifier to give a score x1; extracting spectral-spatial features from brain signals; selecting spectral- spatial features containing discriminative information between concentration and non-concentration states from the set of extracted spectral-spatial features; classifying the selected spectral-spatial features using a classifier to give a score x2; combining the scores x1 and x2 to give a single score and determining if the subject is in a concentration state based on the single score.

L'invention porte sur un procédé et sur un système pour une détection de concentration. Le procédé pour une détection de concentration comporte les étapes consistant à extraire des caractéristiques temporelles à partir de signaux du cerveau; à classer les caractéristiques temporelles extraites à l'aide d'un classificateur pour donner un score x1; à extraire des caractéristiques spectrales-spatiales à partir de signaux du cerveau; à sélectionner les caractéristiques spectrales-spatiales contenant des informations discriminatives entre des états de concentration et de non concentration à partir de l'ensemble de caractéristiques spectrales-spatiales extraites; à classer les caractéristiques spectrales-spatiales sélectionnées à l'aide d'un classificateur pour donner un score x2; à combiner les scores x1 et x2 pour donner un score unique et déterminer si le sujet est dans un état de concentration sur la base du score unique.

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