a ppt for my mtech seminar

1. BCI Implementation For Blind
Subjects using Signal Processing
BY-Sanchita Singha

2. Contents
 What is BCI?
 How human brain works
 How BCI works
 Uses of BCI
 Implementation
 Constraints
 Conclusion
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3. What is BCI
• BCI-Brain Computer Interface
• Direct communication
pathway between the
brain and an external
device
• Reads electrical
signals from brain
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4. How BCI works
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5. Types of BCI
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6. Practical Use of BCI
 People with spinal
injuries
 Targeted for people with
paralysis
 People with acquired
blindness can get vision
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Jens Naumann,
a man with acquired
blindness
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7. How virtual eye works
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8. Flowchart
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9. Signal Acquisition
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10. Training
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11. Feature Extraction
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12. Pre-processing
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13. Constraints
• EEGs measure tiny voltage potentials. The signal is
weak and prone to interference.
• Each neuron is constantly sending and receiving
signals through a complex web of connections. There
are chemical processes involved as well, which EEGs
can't pick up on.
• The equipment heavy & hence not portable.
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14. Conclusion
• Enables people to communicate and control
appliances with use of brain signals
• Open gates for disabled people.
• Numerous future applications
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References
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[15] R. T. Lauer, P. H. Peckham, K. L. Kilgore, andW. J. Heetderks, “Applications of cortical signals to neuroprosthetic control: A critical review,”
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[17] H. Ramoser, J. Muller-Gerking, and G. Pfurtscheller, “Optimal spatial filtering of single trial EEG during imagined hand movement,” IEEE
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[18] B. Kotchoubey, D. Schneider, H. Schleichert, U. Strehl, C. Uhlmann, V. Blankenhorn, W. Froscher, and N. Birbaumer, “Self-regulation of slow
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16. ~Thank You~
For your attention
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17. Any Queries??
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