ARTIFICAL VISION USING EMBEDDED SYSTEM

“NO BLINDS IN THE WORLD”

Presented byR.PRABHU

T.RAJKUMAR||| YEAR ECE

KGISL INSTITUTE OF TECHNOLOGY

INTRODUCTION:

“We see with our brains than with our eyes”. The sole principle used to visionise a blind is

–”DECEIVING OUR BRAINS”.

METHODS USED ARE

a)Microchips.b)Nano tube implant.c)Digital artificial vision.d)Ocular prosthetics.e)Braile type writer

BRAILLE TYPE WRITER:

;

• Using a signal processor synchronized signals are converted to pricking pulses, which is sensed on a bad interfaced on the stomach or hand of blind.

OCULAR PROSTHESIS (FALSE EYE)The BIONIC EYE implant are of porours polyethylene ,aluminum oxide .

DIGITAL ARTIFICAL VISION

• MICRO COMPUTERa)Sub-notebook computer-Employs a 233

MHZ processor, 32 MB of RAM,4 GB hard disk,

b)MICRO CONTROLLER-Consists of pulses 30 HZ to produce each frame

IMAGE PROCESSING

• SOBEL filter is most common approach

• They are Gx and Gy

MEMS

• A new optical device, called the microelectromechanical systems– (MEMS-) based adaptive optics phoropter (MAOP), will greatly improve this process.

• The electrodes are embedded in silicone-based substrate polydimethylsiloxane (PDMS)

PROCESS IN A VISION FIELD OF BRAIN IN A HUMAN

Video cameraAnalog signal

NTSC linkDigital signal

Sub-notebook computerMicro controllerEdge Detected image

Electrical impulses

Electrodes (phosphenes) Visual fieldedgedimage

The original image seen by the camera and phosphene image seen by the visual field in the brain of the blind human are as shown

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HUMAN VISUAL SYSTEM

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ELECTRODE IMPLANTATION:

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NANOTUBES AND NANOBATTERIES:

• Age related retinal diseases like macular dysfunction, retinitis pigmentosa can be averted using nano tubes.

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FUTURE APPLICATIONS: • As now, only black and white images

are seen by this AVS system, research is being carried to visualize coloured images by using optical fiber technology.

• Research is being carried to replace the electrode implantation with ray or wave devices

• NVCS can be nano fabricated on a single chip

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CONCLUSION: 

• “WISHING A REMARKABLE PROGRESS IN THE DEVELOPMENT OF THIS ARTIFICIAL VISION SYSTEM, SUCH THAT EACH AND EVERY BLIND PERSON TODAY, IS NEVER A BLIND TOMMOROW.”

THANK YOU