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face recognition attendance system-Seminar Review PPT

I hereby declare that the seminar report entitled u201cBRAIN COMPUTER<br>INTERFACE u201d submitted to the Department of Information Technology , Sri<br>Venkateswara College of Engineering, Tirupati in partial fulfillment of<br>requirements for the award of the degree of Bachelor of Technology. <br>

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face recognition attendance system-Seminar Review PPT

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  1. A Seminar Report OnBrain Computer Interface By Name:P. Mahesh Hall Ticket No: (17BF1A1246) Under the guidance of P. Leela,M.Tech Assistant Professor DEPARTMENT OF INFORMATION TECHNOLOGY SRI VENKATESWARA COLLEGE OF ENGINEERING Karakambadi Road, Tirupati-517507 2017-2021

  2. OUTLINE • What is BCI • Introduction • Technical topic • Advantages and Disadvantages • Conclusion • References

  3. What is BCI • Brain -Computer Interface -Direct Neural Interface or Brain-Machine Interface • Direct communication pathway between a brain and an external device

  4. Introduction • Brain-computer interface (BCI) is a fast-growing emergent technology, in which researchers aim to build a direct channel between the human brain and the computer. • A 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. • Computer-brain interfaces are designed to restore sensory function, transmit sensory information to the brain, or stimulate the brain through artificially generated electrical signals.

  5. Technical topic • Invasive BCIs • Non-Invasive BCIs • Partially-Invasive BCIs • Wireless BCIs

  6. Invasive BCIs • Implanted: grey matter • Signals: highest quality • Scar-tissue build-up • Target: • repairing damaged sight • providing new functionality to persons with paralysis • Artificial Vision System

  7. Non-Invasive BCIs • poor signal resolution • power muscle implants and restore partial movement • Interfaces • EEG • MEG • MRI

  8. Partially-Invasive BCIs • Implanted: skull • lower risk of forming scar-tissue in the brain • Signal quality between invasive BCIs & non-invasive BCIs

  9. Wireless BCIs • More practical • Embedding multiple chips • More complicated thoughts • Transmission with RF • key requirement: keep the heat down

  10. Advantages • It allows paralyzed people to control the prosthetic limbs with their mind • Transmit visual images to the mind of a blind person which allows them to see • Transmit auditory data to the mind of a deaf person which allows them to hear. • It allows gamers to control the video games with their minds • It allows a mute person to have their thoughts to be displayed and spoken by computer

  11. Disadvantages • BCI are ill effects in the brain due to viral attacks, requiring excessive training for proper usage, high cost, slow speed, lack of better sensor modality, invasive BCIs are risky since it requires neurosurgery etc..

  12. Conclusion • BCI proved successful for communication and control in patients with severe paralyses or in the LIS • BCI allow users to directly communicate their intention without any involvement of the motor periphery • The development of non-visual BCI renders this technology feasible for patients who lost control of eye movement due to disease progression or injury

  13. References • J. R. Wolpaw, N. Birbaumer, D. J. McFarland, G. Pfurtscheller, and T. M. Vaughan, “Brain-computer interfaces for communication and control,” Clinical Neurophysiology, vol. 113, no. 6, pp. 767–791, June 2002. • T. Ebrahimi, J.-M. Vesin, and G. N. Garcia, “Brain-computer interface in multimedia communication,” IEEE Signal Processing Magazine, vol. 20, no. 1, pp. 14–24, January 2003 • ] M. A. Lebedev and M. A. Nicolelis, “Brain-machine interfaces: Past, present and future,” Trends in Neurosciences, vol. 29, no. 9, pp. 536– 546, Sept. 2006

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