Post on 23-Feb-2016
description
Mind Readers
Matt Waldersen (Presenting)
T.J. StrzeleckiRick Schuman
Krishna Jharjaria
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
Project-Specific Success Criteria
1) An ability to encode/decode data packets from a NeuroSky EEG.
2) An ability for a user to select applications based on signals from a NeuroSky EEG.
3) An ability for a user to navigate between different applications on a display using EOG signals.
4) An ability for the system to interactively train the user to effectively operate the device.
5) An ability to display a live video stream from an external camera module, and integrate applications into the video system.
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.
Product Comparison #1
PROS
Enables the user to interface with the device.
Features a transparent display.
Features a tested and reliable mobile operating system.
CONS
Physically awkward Expensive (~$1500) User cannot interact
with the device inconspicuously.
Product #1 Pro’s & Con’s
Arduino Eyeboard Developed by Luis
Cruz. The product is an
arduino shield that uses EOG signals to control a computer application
Product Comparison #2
PROS
The design is open-source and is designed specifically to aid people with disabilities.
Operates on a very common and user friendly platform.
Affordable.
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.
Product #2 Pro’s & Con’s
Emotive Epoc Headset
Multi-electrode consumer EEG headset
Claims to be able to detect player thoughts, feelings and expressions.
Product Comparison #3
PROS
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
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
Product #3 Pro’s & Con’s
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.
What Does This Teach Us?
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
Size and Weight
SIZE (MM)
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
WEIGHT (G)
Battery (x2): 86 EEG: 90 Video Glasses: 85 FPGA: 7
Total: 268 (0.59 lbs) + helmet
Isolate the EOG and Position it carefully.
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
Features Powerful Intel Atom Processor.Drivers and support packages offered on a variety of operating systems
Project-Specific Success Criteria
Enough Processing Power on a Reliable Platform
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.
Questions?