Tactile Graphics and Models for Blind People and Recognition of Shapes by Touch - Visión SenS - Why should blind people be limited to information in Braille ? - Machuca, Berenice (f)

1. Prototype for vision

2. Why blind people have
to be limited to
AGENDA
information in Braille?
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3. 3

4. Dou you need eyes to see?
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5. Sensory substitution
I don’t see with the eyes, I see with
the brain 5

6. AGENDA
1.- Objetives.
2.- Project description.
3.- Project developmet.
4.- Tests and Results.
5.- Conclusions.
6.- Future outlook.
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7. Objectives
Blind people perceive the image with the sense of touch.
Transform contours of image to electrical stimuli.
Use inexpensive materials.
Testing.
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8. Objectives
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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9. Project description.
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10. Somatosensorial Cortex
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11. Development stages
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12. Development stages.
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13. Imagen processing
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14. Development stages
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15. Development stages.
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16. Matrix stimulator
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17. Test and results.
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18. CYDEVI
• Resistencia de la piel.
• Intensidad de la corriente.
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19. CYDEVI
• Resistencia de la piel.
• Intensidad de la corriente.
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20. CYDEVI
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21. 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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22. Conclusions
The components used comply with the objectives proposed
of stimulation.
The prototype is economical.
With sensory substitution can replace the functions of
the sense of sight with the sense of touch.
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23. Future outlook.
Stimulating array of pins with a resolution of 256 x 256 pixels.
Processing and reduction of the image should be automatic.
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24. Future outlook.
Using C language for image processing software decreasing
costs.
Try other more complex shapes.
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25. Electronic Prototype Based
in Vision Sensory Substitution
Asesor: Dr. Francisco Javier Sánchez Marín.
Co-asesor: Dr. José Alfredo Padilla Medina. 25

26. AGENDA
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