Prof. SungWook Kang Profile

Prof. SungWook Kang

at Gwangju Institute of Science and Technology

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 22 January 2010 Paper

Performances among various common spatial pattern methods for simultaneous MEG/EEG data

S. Kang, M. Ahn, S. Jun

Proceedings Volume 7500, 75000X (2010) https://doi.org/10.1117/12.858778

KEYWORDS: Electroencephalography, Brain-machine interfaces, Magnetoencephalography, Brain, Spatial filters, Feature extraction, Magnetometers, Human-machine interfaces, Signal processing, Bandpass filters

Read Abstract +

Brain Computer Interface (BCI) is a communication pathway between devices (computers) and the human brain. It treats brain signals in a real-time basis and deciphers some of what the human brain is doing to give us certain information. In this work, we develop the BCI system based on simultaneous electroencephalograph (EEG) and magnetoencephalography (MEG) using various preprocessing and feature extraction methods along with Fisher linear discriminant analysis (FLDA) classifier. Common spatial pattern (CSP) is a spatial filter whose spatially projected signal has maximum power for one class and minimum power for the other. Each single trial is computed by the variance in the time domain. We choose a proper number of patterns in order to make a feature vector. In this work, 6 CSP patterns, the first three and the last three ones are selected. A feature vector consists of 6 variances of each extracted CSP pattern from projected data. Among various CSP methods, we used normal common spatial patterns (CSP), invariant common spatial patterns (iCSP), and common spectral spatial patterns (CSSP) methods to measure the performances. Simultaneous MEG/EEG datasets (340 channels) for four subjects from Eleckta Vectorview system were digitally acquired at a 1 KHz and 8-30Hz bandpass filtered. Total 340 channels consist of three kinds of channel types such as 102 magnetometers, 204 gradiometers and 40 EEG electrodes. Three different modalities such as EEG-only, MEG-only, and simultaneous MEG and EEG were analyzed in order to study comparative BCI performances on three variants of CSP. Particularly, for simultaneous MEG/EEG data we proposed three different combination ways for BCI and their performances were discussed.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years