The document discusses brain-computer interface (BCI) implementation for providing vision to blind individuals. It begins with explaining what a BCI is and how it works by reading electrical signals from the brain. It then discusses how a virtual eye has been used to restore vision by interpreting brain signals associated with eye movements. The document outlines the process of acquiring brain signals, extracting features, preprocessing data and providing visual feedback. It notes constraints of BCI like weak electrical signals and interference but concludes they can enable communication and control for disabled people.

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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16. ~Thank You~
For your attention
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17. Any Queries??
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