发明名称 |
Method and system for concentration detection |
摘要 |
There is a method and a system for concentration detection. The method for concentration detection includes 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. |
申请公布号 |
US8862581(B2) |
申请公布日期 |
2014.10.14 |
申请号 |
US200812990156 |
申请日期 |
2008.04.28 |
申请人 |
Agency for Science Technology and Research |
发明人 |
Zhang Haihong;Guan Cuntai;Hamadi Charef Brahim Ahmed Salah;Wang Chuanchu;Phua Kok Soon |
分类号 |
G06F7/00;G06F17/30;A61B5/16;A61B5/00;G06K9/00;A61B5/048 |
主分类号 |
G06F7/00 |
代理机构 |
Christensen Fonder P.A. |
代理人 |
Christensen Fonder P.A. |
主权项 |
1. A method for concentration detection, the method comprising 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 whether the subject is in a concentration state based on the single score; wherein the step of extracting spectral-spatial features of brain signals further comprises the steps of: extracting respective brain signal components in discrete frequency windows using filter banks to obtain spectral features of brain signals; and applying a common spatial pattern (CSP) algorithm to each of the spectral features using a CSP array to obtain the spectral-spatial features of brain signals. |
地址 |
Connexis SG |