Prototype for vision

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AGENDA

Why blind people have to be limited to

information in Braille?

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Dou you need eyes to see?

Sensory substitution

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I don’t see with the eyes, I see with the brain

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1.- Objetives.

2.- Project description.

AGENDA

3.- Project developmet.

4.- Tests and Results.

5.- Conclusions.

6.- Future outlook.

Transform contours of image to electrical stimuli.

Testing.

Objectives

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Use inexpensive materials.

Blind people perceive the image with the sense of touch.

Objectives

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Blind people can detect objects at a

distance without using the Braille

system (Replace the sense of sight with the sense of

touch and ).

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Project description.

Somatosensorial Cortex

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Development stages

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Development stages.

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Imagen processing

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Development stages

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Development stages.

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Matrix stimulator

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Test and results.

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CYDEVI

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• Resistencia de la piel.

• Intensidad de la corriente.

CYDEVI

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• Resistencia de la piel.

• Intensidad de la corriente.

CYDEVI

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Results and Conclusions

Time image processing with Matlab was 396.4 ms

The prototype meets the 15.75% of all images processed

by the human eye (16 frames per second).

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Conclusions

The components used comply with the objectives proposed

of stimulation.

The prototype is economical.

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With sensory substitution can replace the functions of

the sense of sight with the sense of touch.

Future outlook.

Stimulating array of pins with a resolution of 256 x 256 pixels.

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Processing and reduction of the image should be automatic.

Future outlook.

Try other more complex shapes.

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Using C language for image processing software decreasing

costs.

Electronic Prototype Based

in Vision Sensory Substitution

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Asesor: Dr. Francisco Javier Sánchez Marín.

Co-asesor: Dr. José Alfredo Padilla Medina.

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AGENDA