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Mind Readers

Matt Waldersen (Presenting) T.J. Strzelecki Rick Schuman Krishna Jharjaria. Mind Readers. What We’re Doing. The proposed project will be a mobile brain-computer interface. Computer applications will be presented to the user through commercially available video glasses.

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Mind Readers

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  1. Matt Waldersen (Presenting) T.J. Strzelecki Rick Schuman Krishna Jharjaria Mind Readers

  2. What We’re Doing • The proposed project will be a mobile brain-computer interface. • Computer applications will be presented to the user through commercially available video glasses. • An EOG and commercially available EEG will be mounted inside of a common enclosure and will enable the user to navigate and select various applications. • A microcontroller will be used to acquire the EOG and EEG signals, the EEG signals will be analyzed by an FPGA and a Intel Atom mother board will control the virtual reality environment as well as execute all of the computer applications

  3. Project-SpecificSuccess Criteria • An ability to encode/decode data packets from a NeuroSky EEG. • An ability for a user to select applications based on signals from a NeuroSky EEG. • An ability for a user to navigate between different applications on a display using EOG signals. • An ability for the system to interactively train the user to effectively operate the device. • An ability to display a live video stream from an external camera module, and integrate applications into the video system.

  4. Product Comparison #1 • Google’s “project glass” is an augmented reality head-mounted display. • Expected to be commercially available sometime between 2013-2014. • Interface with the user through accelerometers and voice recognition software.

  5. Product #1 Pro’s & Con’s PROS CONS Physically awkward Expensive (~$1500) User cannot interact with the device inconspicuously. • Enables the user to interface with the device. • Features a transparent display. • Features a tested and reliable mobile operating system.

  6. Product Comparison #2 • Arduino Eyeboard • Developed by Luis Cruz. • The product is an arduino shield that uses EOG signals to control a computer application

  7. Product #2 Pro’s & Con’s PROS CONS Digital display varies with head position. Doesn’t isolate digital and analog circuitry. Significant distance between electrodes and analog circuitry. Doesn’t operate a wide variety of computer applications. • The design is open-source and is designed specifically to aid people with disabilities. • Operates on a very common and user friendly platform. • Affordable.

  8. Product Comparison #3 • Emotive Epoc Headset • Multi-electrode consumer EEG headset • Claims to be able to detect player thoughts, feelings and expressions.

  9. Product #3 Pro’s & Con’s PROS CONS Highly suggested that electrodes are moistened for optimal use. Multi-electrode design not visually appealing. Is not a stand alone device Lacks “socially redeeming” apps Feature creep dilemma • Best commercially available EEG on the market right now. • Only product with “thought detection” • Multi-electrode design allows for a wider variety of data. • Built in gyroscope

  10. What Does This Teach Us? • The system should be a mobile. • The system should be as affordable as possible. • EOG circuitry should be isolated as much as possible • Mount the EOG as close as possible to the electrode • The digital display should be mounted in front of the user. • The system should have a significant amount of processing power on a reliable platform. • The system should be an inconspicuous and effective means of interacting with an augmented reality platform.

  11. The system should be mobile and affordable. • Rechargeable batteries for continued use and mobility. • Pico-ITX motherboard is small and light weight. • NeuroSky EEG is the cheapest commercially available EEG on the market. • Hockey Helmet is a durable and affordable enclosure for a HMD • Sub-systems broken up into modules rather than one giant PCB

  12. Size and Weight Size (mm) Weight (g) Battery (x2): 86 EEG: 90 Video Glasses: 85 FPGA: 7 Total: 268 (0.59 lbs) + helmet • Charging Module: 28.8 x 14.8 x 1.9 • Battery (x2): 67 x 40 x 13 • Pico-ITX: 100 x 72 • dsPIC: 14 x 14 x 1

  13. Isolate the EOG and Position it carefully.

  14. The digital display should be mounted in front of the user. • Video glasses are mounted directly in front of the user’s eyes • The use of an EOG maximizes the field of view

  15. Project-SpecificSuccess Criteria Enough Processing Power on a Reliable Platform Features Powerful Intel Atom Processor. Drivers and support packages offered on a variety of operating systems

  16. Inconspicuous and Effective • Combination of EOG and EEG allows for a new inconspicuous and effective means of interacting with an augmented-reality head mounted display. • Physically resembles devices currently in use.

  17. Questions?

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