4 ms·

That's a super interesting idea and I think should work very well. If it was combined with the use of camera (for tracking the distance away from the monitor /

by bartwr 4y ago

That's a super interesting idea and I think should work very well. If it was combined with the use of camera (for tracking the distance away from the monitor / screen) I think it could work very well; especially that noise / quantization / compression is not a problem in such a case.

anon_123g987 4y ago
The paper: O. Keleş, E. Anarım: Adjustment of Digital Screens to Compensate the Eye Refractive Errors via Deconvolution. Link to PDF: https://www.researchgate.net/profile/Emin-Anarim/publication/338072758_Adjustment_of_Digital_Screens_to_Compensate_the_Eye_Refractive_Errors_via_Deconvolution/links/5e4a5590a6fdccd965ac46bb/Adjustment-of-Digital-Screens-to-Compensate-the-Eye-Refractive-Errors-via-Deconvolution.pdf https://www.researchgate.net/profile/Emin-Anarim/publication...
- loxias 4y ago
  Dude. I have... multiple books on my shelf about Deconvolution (though more 1 dimensional than 2 dimensional)... never even heard of this and am tickled pink :D Thanks! (and thanks grandparent for remembering it) Will 100% post to HN ~should~ when I try implementing it.
  - credit_guy 4y ago
    I find it very unlikely to work. Convolution smooths out functions. If you convolve any function with a Gaussian kernel, you get a C^infinity function (a function that has continuous derivatives of arbitrary order). This anti-blurring effect would attempt to find for a given function f another function g so that g convolved with a Gaussian kernel is f. But if f is discontinuous no such function exists. This is not just academic. Letters on a screen are discontinuous functions. You could say that a certain amount of smoothness is tolerated. Or that all signals are discretized anyway, so the whole concept of continuity is mathematical non-sense. So, what I provided is just heuristics, is not a solid proof. It's still in principle possible to produce such a anti-blurring algorithm, I just find it highly unlikely, I would not invest much time in it.
    - ardourdev 4y ago
      Look up computer generated holography! It is certainly possible to calculate a hologram of a letter which focuses at some different depth than the screen. There are issues which arise from restricting the hologram to a real valued grid, like limited FoV and noise, but these are not impossible problems to solve and existing technology is already quite good in terms of image quality.

by bartwr 4y ago

anon_123g987 4y ago

The paper: O. Keleş, E. Anarım: Adjustment of Digital Screens to Compensate the Eye Refractive Errors via Deconvolution. Link to PDF: https://www.researchgate.net/profile/Emin-Anarim/publication/338072758_Adjustment_of_Digital_Screens_to_Compensate_the_Eye_Refractive_Errors_via_Deconvolution/links/5e4a5590a6fdccd965ac46bb/Adjustment-of-Digital-Screens-to-Compensate-the-Eye-Refractive-Errors-via-Deconvolution.pdf https://www.researchgate.net/profile/Emin-Anarim/publication...

loxias 4y ago
Dude. I have... multiple books on my shelf about Deconvolution (though more 1 dimensional than 2 dimensional)... never even heard of this and am tickled pink :D Thanks! (and thanks grandparent for remembering it) Will 100% post to HN ~should~ when I try implementing it.
- credit_guy 4y ago
  I find it very unlikely to work. Convolution smooths out functions. If you convolve any function with a Gaussian kernel, you get a C^infinity function (a function that has continuous derivatives of arbitrary order). This anti-blurring effect would attempt to find for a given function f another function g so that g convolved with a Gaussian kernel is f. But if f is discontinuous no such function exists. This is not just academic. Letters on a screen are discontinuous functions. You could say that a certain amount of smoothness is tolerated. Or that all signals are discretized anyway, so the whole concept of continuity is mathematical non-sense. So, what I provided is just heuristics, is not a solid proof. It's still in principle possible to produce such a anti-blurring algorithm, I just find it highly unlikely, I would not invest much time in it.
  - ardourdev 4y ago
    Look up computer generated holography! It is certainly possible to calculate a hologram of a letter which focuses at some different depth than the screen. There are issues which arise from restricting the hologram to a real valued grid, like limited FoV and noise, but these are not impossible problems to solve and existing technology is already quite good in terms of image quality.