Main (9)

1,582 views
1,515 views

Published on

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
1,582
On SlideShare
0
From Embeds
0
Number of Embeds
6
Actions
Shares
0
Downloads
120
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Main (9)

  1. 1. CET DIGITAL SIGNAL PROCESSING BRAIN COMPUTER INTERFACE Presented by: VIGNESH C
  2. 2. CET DIGITAL SIGNAL PROCESSING Brain Computer Interface from fiction to reality ...
  3. 3. CET DIGITAL SIGNAL PROCESSING Movie Based On “BRAIN COMPUTER INTERFACE ”
  4. 4. CET DIGITAL SIGNAL PROCESSING overview <ul><li>Definition </li></ul><ul><li>How BCI works </li></ul><ul><li>Basic component </li></ul><ul><li>Implant device </li></ul><ul><li>About TMS320C6713 processor </li></ul><ul><li>Simplified model of BCI </li></ul><ul><li>Applications </li></ul><ul><li>Drawbacks </li></ul><ul><li>Conclusion </li></ul><ul><li>Future Expansion </li></ul>
  5. 5. CET DIGITAL SIGNAL PROCESSING DEFINITION A Brain Computer Interface (BCI) is a direct communication pathway between a human brain and an external device.
  6. 6. CET DIGITAL SIGNAL PROCESSING HOW BRAIN COMPUTER INTERFACE WORKS
  7. 7. CET DIGITAL SIGNAL PROCESSING HOW BRAIN COMPUTER INTERFACE WORKS <ul><li>Signals are read from the array of neurons. </li></ul><ul><li>Signals are amplified. </li></ul><ul><li>Transmitted to computer </li></ul><ul><li>Transformed to device control commands. </li></ul><ul><li>Signals translated into action. </li></ul>
  8. 8. CET DIGITAL SIGNAL PROCESSING BASIC COMPONENTS <ul><li>The implant device. </li></ul><ul><li>The signal recording </li></ul><ul><li>and processing section. </li></ul><ul><li>An external device. </li></ul><ul><li>A feedback section to the subject. </li></ul>
  9. 9. CET DIGITAL SIGNAL PROCESSING Implant Device <ul><li>For reading EEG signal we use electrode. </li></ul><ul><li>Placed on the scalp (by partly removing “stratum corneum”). </li></ul>
  10. 10. ABOUT TMS320C6713 DSP processor <ul><li>This processor belongs to TMS320C6XXX family. </li></ul><ul><li>Features: </li></ul><ul><li> -264 kB of internal memory. </li></ul><ul><li> -8 functional units composed of 6 </li></ul><ul><li>ALU’s and 2 Multiplier units. </li></ul><ul><li>-32 bit address bus,2 sets of 32 </li></ul><ul><li>bit general-purpose registers. </li></ul>CET DIGITAL SIGNAL PROCESSING
  11. 11. CET DIGITAL SIGNAL PROCESSING SIMPLIFIED MODEL OF THE BCI SYSTEM
  12. 12. CET DIGITAL SIGNAL PROCESSING ATR & HONDA DEVELOP NEW  BCI <ul><li>Is the worlds first brain controlled robot. </li></ul><ul><li>Big white box as shown in figure contains a “functional magnetic resonance image scanner”. </li></ul>
  13. 13. CET DIGITAL SIGNAL PROCESSING BCI APPLICATIONS <ul><li>Controlling a computer cursor via mental commands. </li></ul><ul><li>Ability to control a video game by thought. </li></ul><ul><li>Controlling the bigger picture device such as “wheel chair” and “robotic hand”. </li></ul>
  14. 14. CET DIGITAL SIGNAL PROCESSING DRAWBACKS <ul><li>EEGs measure tiny voltage. The signal is weak and subjected to interference. </li></ul><ul><li>Connection to the nervous system could lead to permanent brain damage. </li></ul><ul><li>The equipment is heavy & hence not portable. </li></ul>
  15. 15. CET DIGITAL SIGNAL PROCESSING COMPUTATIONAL CHALLENGES AND FUTURE IMPLEMENTATIONS <ul><li>Minimally invasive surgical methods. </li></ul><ul><li>BCI for totally paralyzed. </li></ul><ul><li>Development of telemetry chip to collect </li></ul><ul><li>data without external cables. </li></ul>
  16. 16. CET DIGITAL SIGNAL PROCESSING CONCLUSION <ul><li>Potentially high impact technology. </li></ul><ul><li>BCI System is nominated for the European ICT Grand Prize. </li></ul>
  17. 17. CET DIGITAL SIGNAL PROCESSING <ul><li>Brain Computer Interface, www.wikipedia.org </li></ul><ul><li>www.betterhumans.com </li></ul><ul><li>Brain- computer –interface Invasive-BCIs . </li></ul><ul><li>Handbook Of Biomedical Instrumentation By R.S.Khandpur </li></ul>REFERENCES
  18. 18. CET DIGITAL SIGNAL PROCESSING Thank you
  19. 19. CET DIGITAL SIGNAL PROCESSING ANY QUESTIONS

×