this post was submitted on 24 Sep 2023
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Why can't we decrease our eye's FPS to get better night vision? (feddit.de)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
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My phone is normally worse for color gradients and contrasts than my eyes. Also, normally it has worse nightvision.

But when decreasing the shutter speed, for example in OpenCamera, I get crazy night pics.

I see that when its dark my FPS goes down, I see less frames automatically and totally cant control that.

Could this mechanism be altered, to have even less FPS but more photons in the soup to get brighter sight?

Yes, trying to hack my eyes here. "Getting used to darkness" is normally the pupils getting wider, there are quite some interesting plants to do that but I havent heard of anything altering the brains image processing.

Edit

I learned:

  • in Nightsight we use the rod cells, which take longer to send a signal. That way they capture more photons, but the "FPS" is lower
  • you can trick your iris naturally to stay open, like the Pirates did (some plants like nightshades also do this, applied locally)
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[โ€“] [email protected] 11 points 1 year ago (1 children)

Eyes/the brain don't have frames.

The way cameras work is that they expose multiple frames to create a series of still images. The slower those frames are going, the longer they are exposed to the ambient light, thus why lower FPS allows for better picture quality in low light environments.

The way to do this with vision would be to allow more light in to your eyes than normal. Larger eyes, more dilation, more rods in your eyes, and other adaptations could improve your night vision abilities. Your best bet is to look at nocturnal animals and understand how their vision is better than ours in the dark.

[โ€“] [email protected] -2 points 1 year ago

Hmm yes I think all of these animals simply have more rods and bigger eyes. But I also see how my brain takes longer to make single images, its not FPS but similar.

So even without improving the actual sight, having the tradeoff of less speedy sight for more ambient light per "image" would be really interesting