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Vision-Correcting Displays [video]

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Re: Vision-Correcting Displays [video]

#11

Post by hosay123 »

thelad wrote: post #9

Don't get this, what's the point in 1 device being corrected while the rest of the real world is blurry? One use case example was a guy in a car with GPS navigation. So he can then see the GPS nav but how does he drive if he can't see properly!?

Charity school with 25 tablets, shared among 500 poverty-stricken children in a third world country. If the correction can be adjusted in software and this can be made cheaply, it's a no-brainer application. The video indicates that it can indeed be made cheaply and adjusted in software.

Sounds much simpler than trying to ensure a continuous supply of glasses for 500 energetic kids

Re: Vision-Correcting Displays [video]

#12

Post by Houshalter »

hosay123 wrote: post #11
thelad wrote: post #9

Don't get this, what's the point in 1 device being corrected while the rest of the real world is blurry? One use case example was a guy in a car with GPS navigation. So he can then see the GPS nav but how does he drive if he can't see properly!?

Charity school with 25 tablets, shared among 500 poverty-stricken children in a third world country. If the correction can be adjusted in software and this can be made cheaply, it's a no-brainer application. The video indicates that it can indeed be made cheaply and adjusted in software. Sounds much simpler than trying to ensure a continuous supply of glasses for 500 energetic kids

Not necessarily, see this guy for example: https://www.ted.com/talks/josh_silver_demos_adjustable_liqui...

Although I'm skeptical that third world countries will have access to high tech vision correcting tablets but not eyeglasses.

Re: Vision-Correcting Displays [video]

#13

Post by higherpurpose »

thelad wrote: post #9

Don't get this, what's the point in 1 device being corrected while the rest of the real world is blurry? One use case example was a guy in a car with GPS navigation. So he can then see the GPS nav but how does he drive if he can't see properly!?

There are already tablets for the kitchen, for blind people, and so on. I think the "tablets for old people" niche could be a pretty big one, and all of them could feature such displays.

Re: Vision-Correcting Displays [video]

#14

Post by Cass »

thelad wrote: post #9

Don't get this, what's the point in 1 device being corrected while the rest of the real world is blurry? One use case example was a guy in a car with GPS navigation. So he can then see the GPS nav but how does he drive if he can't see properly!?

If someone's far-sighted, as many people above the age of forty are, they might be able to see the street perfectly well, but have trouble reading a GPS screen that's only fourty cm away from their face.

And speaking as one of the people whose vision defect can't be corrected by glasses, but only by uncomfortable contact lenses, there'd be immense value to me in a computer I can use without lenses - especially since reading on a screen is basically the only thing I need the damn things for while I'm at home. For someone whose work is mostly computer-based, you might be able to get away with taking your lenses out for the entire day and only wear them for the drive to work and back.

Re: Vision-Correcting Displays [video]

#15

Post by joshlegs »

kghose wrote: post #4

I was told the following legend about how shoes were invented. A haughty princess wanted to leave her pristine castle and explore the world. But she found the world very dusty. She told her wise men to come up with a plan to cover the world in a lush carpet. The wise men pondered and said that this could not be done. The princess threw a fit. The wise men pondered some more. Then they said "Princess, we can not cover…

Yeah, but I don't even like shoes ....

On a serious note, this does seem like a dumb idea. Why would you create a million corrective devices for the myriad objects in the real world. Why would you not rather create something small and portable that you could apply to all those objects equally?

OH wait, they have that. They're called eyeglasses, I think.

Re: Vision-Correcting Displays [video]

#19

Post by nitrogen »

mattangriffel wrote: post #17

I've always thought it would be interesting to correct vision at the brain/neural level rather than the physical level. Can anyone comment on whether this would be possible?

I think this happens to an extent. The poor focus of bad eyesight is effectively the same as a spatial low-pass filter, and based on my own perceptions, I think the visual processing chain applies sharpening or spatial equalization to try to compensate. However, it's not enough; it can't actually restore detail that was never provided to the rods and cones in the first place.

Re: Vision-Correcting Displays [video]

#20

Post by nacs »

mattangriffel wrote: post #17

I've always thought it would be interesting to correct vision at the brain/neural level rather than the physical level. Can anyone comment on whether this would be possible?

If the input (vision) is not corrected before it enters the eye then anything done afterwards, like at the neural level, would likely be similar to image post-processing filters in image editors.

By no means an expert in this area but I would think the best that could be done with this type of post processing would likely amount to applying a highly specialized "Find Edges"/"Sharpen" filter in Photoshop to a blurred photo (except at a really high resolution and at > 60 frames per second).

An interesting possibility with that kind of neural-level post-processing could be an on-demand digital-zoom effect so you could do a 2X-32X zoom on a faraway road sign or to "zoom in" to something really close at a macroscopic level (for surgeons/jewelers).

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