Blind and Visually Impaired Community
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Question: How do blind people currently see images on computers? (self.Blind)
submitted by FromHereToEterniti
I can imagine a table that has 1024x1024 actuators, probably costing in the range of ~$10k, and that you can use to send black and white photos to.
Does something like that exist already? Anyone care to share a link to one? Or is it something that wouldn't work for some reason?
Does something like that exist already? Anyone care to share a link to one? Or is it something that wouldn't work for some reason?
Dofolo 12 points 5y ago
Actuators, piezo ceramics, like in current main stream braille devices are about 1 dollar a piece.
A 1024x1024 array would cost, in theory, a million give or take a bit because of bulk discounts. Driving it would also be a small logistical nightmare (and a costly one).
I know of some displays like this, but much much lower resolution because of the above limitation.
A 1024x1024 array would cost, in theory, a million give or take a bit because of bulk discounts. Driving it would also be a small logistical nightmare (and a costly one).
I know of some displays like this, but much much lower resolution because of the above limitation.
BARDLover 6 points 5y ago
Can you link to one of those lower resolution displays?
You actually gave me an idea.
You actually gave me an idea.
Dofolo 3 points 5y ago
http://web.metec-ag.de/graphic%20display.html
FromHereToEterniti [OP] 1 points 5y ago
What is your idea?
FromHereToEterniti [OP] 1 points 5y ago
at such large volumes, the discount should be quite high, so there is still hope.
if it costs $50k and it works, then who cares? I certainly don't.
if it costs $50k and it works, then who cares? I certainly don't.
Dofolo 1 points 5y ago
I'm afraid the discounts do not go that high though :) At 1024x1024 you'd be looking at 0.05 cents/dot for $50k. The current technology just is not there yet for a device like this unfortunately.
FromHereToEterniti [OP] 1 points 5y ago
I'll find some multiplex chips that can drive a lot of amps. That stuff exists out there.
[deleted] 1 points 5y ago
[deleted]
cS47f496tmQHavSR 1 points 5y ago
There's also a reason braille is structured the way it is. Just popping the text out of the screen would not do much, and similarly, an image of a flower does not feel like a flower.
Feeling things may help in certain cases but having a display that makes contrast tangible/touchable would not immediately solve the issue of using a display as a blind person
Feeling things may help in certain cases but having a display that makes contrast tangible/touchable would not immediately solve the issue of using a display as a blind person
[deleted] 4 points 5y ago
[deleted]
seeingwithsound 1 points 5y ago
It does not make much sense to head for 1024x1024 actuators, because you can only touch and perceive a much smaller number at a time. It would make more sense to have, say, 5x5 actuators per finger tip, and have the displayed content on the small fingertip grid track the physical finger position on that much larger 1024x1024 image grid. Even then, tactile displays are thus far not cost-effective because of low market volume.
LanceThunder 1 points 5y ago
currently images are supposed to be coded into webpages and software with alternative text that describes the image. blind people can't see the image but at least they can hear a description of what is going on.
Amonwilde 1 points 5y ago
Some people use the vOIc to render images in audio. It works...sort of ok.
https://www.seeingwithsound.com/
https://www.seeingwithsound.com/
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