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Brain Computer Interface
http://eegclassifyandrecognize.blogspot.com/
Project MembersSupervisors• Pro.Dr. Mostafa Gad-Haqq• Pro.Dr.Tareq Gharib• Dr. Howaida Abd El Fatah
Assistants• T.A Manal Tantawy
Team Members• Ahmed Khaled Abd El-glil• Ahmed Mohamed Ahmed Mahany• Islam Ahmed Hamed• Kamal Ashraf Kamal• Mohammed Saeed Ibrahim
Agenda• Problem Statement• Objective• Motivation• Description
Introduction to EEG Signals Brain Computer Interface
• Basic System Architecture• Tools, technologies and SWE Methodology• Time Plan• References
Problem Statement
HandicapsHandicaps need assistance to
perform their everyday activities
Problem Statement
Biometric SecurityHigh Risk Security
Problem Statement
Medical DiagnoseFor Mental disorders and spinal
injuries
Objective
• Help disabled people to normal life and communication without the need of others.
• Develop a generic EEG Classification that can support different applications
• Develop brain computer interface application by using cognitive EEG signal.
Motivation
• Help handicaps to normal life and communication without the need of others.
EEG signal( Description )
•Definition:-An electroencephalogram is a measure of the brain's voltage changes as detected from scalp electrodes.
Electrodes: Small metal discs placed on the scalp in special positions.
EEG signal( Description cont)
•It is an approximation of the cumulative electrical activity of neurons.
•Actions that affect the EEG signals to three categories:-
Muscular Movements Expressive States Cognitive States (Our Scope)
EEG signal( Description cont)
•Study of EEG paves the way for some problem:-
Monitoring Alertness, Coma, and Brain death.
locating areas of damage following head injury and tumour.
Investigating and testing epilepsy.Monitoring the brain development.investigating sleep disorders and mental disorders.
EEG signal(Description cont)
•Waves
Brain Computer Interface(Description)
Definition:-
Brain Computer Interface (BCI) is a collaboration in which a brain accepts and controls a Mechanical device as a natural part of its representation of the body.
Brain Computer Interface( Description cont. )
What is it good for ?
•People with little muscle control.•Early medical diagnosePeople with Amyotrophic lateral sclerosis(ALS)
Spinal injuries.Mental disorders.
Dementia.(cognitive abilities).Epileptic disease.
Brain Computer Interface( Description cont. )
•In Review
Allow those with poor muscle control to communicate and control physical devices
Agenda• Basic System Architecture• Tools, technologies and SWE Methodology• Time Plan• References
Basic System Architecture
GenericEEG
Signals Classificat
ion
Computer Interface
Basic System Architecture(cont)
EEG Signal Pre-
processing
EEG Signal Classificatio
n
EEG Signal
acquisition
Emotive SDK Research Edition.
Removal NoiseFeature Extraction• DFT• ICA Transforms• Discrete Wavelet
Transform• Autoregressive Modeling
Neural NetworkGenetic AlgorithmSupport Vector Machine
There are many algorithms to perform EEG signal feature extraction and classification
Compare And Choose
Computer
Interface
Tools, technologies and SWE Methodology• Tools & Technologies
Software Microsoft .NET Framework(Visual Studio
2008)
Hardware Emotive SDK Research Edition.
• Software development methodologyAgile.
Time Plan
References
BooksAuthor s are Dr Saeid Sanei and A. Chambers, EEG Signal Processing.
PapersPredicting Reaching Targets from Human EEG.[Paul S. Hammon, Scott Makeig, Howard Poizner, Emanuel Todorov, and Virginia R. de Sa] ,IEEE Signal Processing Magazine-jaunary 2008.
Thanks
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