The document outlines a project aimed at developing a prototype that allows blind individuals to perceive images through touch and electrical stimuli instead of relying solely on braille. The prototype has been tested and shows potential for sensory substitution with a processing speed of 396.4 ms, equivalent to 15.75% of visual processing speed. Future plans include improving the resolution and automation of image processing to enhance the experience for users.

1. Prototype for vision

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

3. 3

4. Dou you need eyes to see?
4

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.
6

7. Objectives
Blind people perceive the image with the sense of touch.
Transform contours of image to electrical stimuli.
Use inexpensive materials.
Testing.
7

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 ).
8

9. Project description.
9

10. Somatosensorial Cortex
10

11. Development stages
11

12. Development stages.
12

13. Imagen processing
13

14. Development stages
14

15. Development stages.
15

16. Matrix stimulator
16

17. Test and results.
17

18. CYDEVI
• Resistencia de la piel.
• Intensidad de la corriente.
18

19. CYDEVI
• Resistencia de la piel.
• Intensidad de la corriente.
19

20. CYDEVI
20

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).
21

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.
22

23. Future outlook.
Stimulating array of pins with a resolution of 256 x 256 pixels.
Processing and reduction of the image should be automatic.
23

24. Future outlook.
Using C language for image processing software decreasing
costs.
Try other more complex shapes.
24

25. Electronic Prototype Based
in Vision Sensory Substitution
Asesor: Dr. Francisco Javier Sánchez Marín.
Co-asesor: Dr. José Alfredo Padilla Medina. 25

26. AGENDA
26