Brain Port Vision Device

1. BRAIN PORT VISION DEVICE
BACHELOR OF TECHNOLOGY
IN
COMPUTER SCIENCE AND ENGINEERING
BY
B.AAKASH(19VE1A05C5)
UNDER THE GUIDANCE OF
SRILATHA PULI
ASSISTANT PROFESSOR
(2019-2023)

2. INTRODUCTION
An electric lollipop that allows the blind to ‘See’ using their
tongue has been developed By scientists The machine is called
the Brain Port vision Device

3. INTRODUCTION
 The electric lollipop or BrainPort vision device captures
images using a tiny camera and then converts the image
into tiny tingles on the tongue.
 The tingles are then sent to the brain which then converts
the tingles into pictures
 After a few days practicing people, who otherwise
couldn’t see, were able to make out shapes, read signs and
even read letters

4. Discovery of Device
 Brain Port is a technology where by sensory information can be
sent to one's brain via a signal from the Brain Port (and its
associated sensor) that terminates in an electrode array which sits
atop the tongue.
 It was initially developed by Paul Bach-y-Rita as an aid to
people's sense of balance, particularly of stroke victims.
 Brain Port technology has been developed for use as a visual aid.
 For example, the Brain Port has demonstrated its ability to allow
a blind person to see his surroundings in polygonal and pixel
form

5. Why only Tongue
 Skin of tongue is more sensitive than any other body part.
 The tongue was the ideal place to provide information
through tactile stimulation . There is a high level of nerve
endings in tongue, similar to a finger. And the tongue is
constantly moist, so there is constant electric conductivity.

6. WHAT BRAINPORT USERS SEE
 With the current prototype (arrays containing 100 to 600+
electrodes), study participants have recognized the location and
movement of high-contrast objects and some aspects of
perspective and depth. In most studies, participants use the device
for between two and 10 hours, often achieving the following
milestones:

7. WHAT BRAINPORT USERS SEE
 Within minutes: users perceive where in space stimulation
arises (up, down, left, and right) and the direction of movement
 Within an hour: users can identify and reach for nearby objects,
and point to and estimate the distance of objects out of reach
 Within several hours: users can identify letters and numbers
and can recognize landmark information.

8. HARDWARE AND SOFTWARE REQUIREMENTS
Camera
User controls,
A rechargeable battery,
 The tongue array

9. Parts Of Device
 Digital Video Camera :
 Brain port vision device consists of a digital Video camera
placed in the pair of glasses.
 Visual data is captured through the camera (1.5cm in
diameter).
 Signals from the camera are then passed to the Brain port
device along a cable and then to the lollipop-shaped stick,
placed on the tongue.

10. Parts Of Device
 Brain Port Balance :
 Power Button: Used to start and stop the brain port
balance.
 Control Unit: This unit comprises of a CPU and Battery
CPU is used here to convert the digital output from the
camera into electric pulses. Brain port balance works with
the help of a battery.

11. Parts Of Device
 Lollipop shaped stick :
It consists of Three Parts, they are:
a) Electrode Array
b) Simulation Circuitry,
c) Accelerometer

12. Parts Of Device
 Electrode Array:
 The lollipop contains a square grid of 400 electrodes
which pulse according to how much light is in that area of
the picture.
 It converts pictures into electrical pulses and it is placed
on tongue.

13. Parts Of Device
 Stimulation Circuitry:
It consists of
A. User Interface: User interface allows selection of current
and voltage mode.
B. Processor: Configures the brain port device.
Accelerometer:
1. Accelerometer is used on the other side of the electrode
array to give information about body and head position
to brain through electrical stimulation of tongue.

14. ADVANTAGES
1. Brain Port device does not replace the sense of sight, it
adds to other sensory experiences to give users
information about the size, shape and location of objects.
2. Users can operate it independently with a handheld
controller.
 3. A pair of sunglasses wired to an electric “lollipop”
helps the visually impaired regain optical sensations via a
different pathway Therefore device is like normal
sunglasses hence it does not look bad.
4. It uses a rechargeable battery like in normal cell
phones.

15. DISADVANTAGES
 This technology can’t be adapted to work on senses the
brain doesn’t already have.
 The Brain Port requires training the brain incrementally
using daily practice sessions.
 Not affordable to common people.
 Occasionally it will produce weak metallic taste
sensations, a minor side effect.

16. IMPLEMENTATION
An inch-long camera hidden in sunglasses sends image to
a handled control unit.
The control unit converts the image into a low resolution
black , white and grey picture.
Image recreated on a grid of 400 electrodes .Each one
pulses according to how much light is in that area of the
picture.
User ‘feels’ the shape and detects movement on their
tongue.
Brain eventually learns to ‘see’ the shape detected on
tongue.

17. WORKING

18. WORKING
 A camera picks up the image of the surrounding; the
information is processed by a chip which converts it
into impulses which are sent through an electrode array,
via the tongue, to the person's brain.
 The human brain is able to interpret these impulses as
visual signals and they are then redirected to the visual
cortex, allowing the person to see

19. APPLICATIONS
 Providers vestibular or balance information for people
with balance disorders.
 Provides directional or navigational information for
people who operate under central command and control
scenarios, such as military and civilian rescue personnel.
 Provides very crude visual information through the tongue
for persons who are completely blind.

20. TECHNOLOGIES
Biomechatronics
Brain port Cyberware
Exocortex
Intelligence amplification
Neurotechnology
 Optogenetics
Sensory substitution
Synthetic telepathy.

21. CONCLUSION
The BrainPort vision device allows users to directly and
independently perceive the environment in a novel way.
There is a hope that this device can make a serious
Difference for patients whose sight cannot be replaced.
Thus we hope that blind people can also see this
colourful world by using this brain port device.

22. REFERENCES
http://science.howstuffworks.com/brainport3.htm
http://www.fastcompany.com/1836861/howwicabs-
brainport-technology-gives-sigh
http://www.scientificamerican.com/article/devicelets-
blind-see-with-tongues

23. FUTURE SCOPE
 This technology can’t be adapted to work on senses the brain
doesn’t already have. So, The research center wibac is trying
to implement this kind of people also.
 The Brain Port requires training the brain incrementally
using daily practice sessions. Reduce time period of learning
classes ·
 When it comes in market its cost is around $10,000 so it
cannot be afforded by common People, and it will reduced
in future. ·
 Occasionally it will produce weak metallic taste sensations,
a minor side effect. We have never observed any kind of
tissue irritation with the gold-plated electrodes.

24. QUERIES???????????

25. THANKYOU !!!!