4 ms·

To be fair, sensors have the luxury of time that our eyes don’t have. See astrophotography for an example of “could barely see it but the sensor worked it out.”

nine_k 4y ago
Sensors may have the time, but our hands do not; they are unsteady in subtle ways. When making photos in low light, I always try to lean my phone against something (a bench, a lamppost, a tree, a building) to let the longer exposure be sharper.
- adgjlsfhk1 4y ago
  as long as there is anything to key onto it's possible to remove the shake algorithmically
  - eru 4y ago
    > as long as there is anything to key onto it's possible to remove the shake algorithmically Why the requirement? The phone already has accelerometers, doesn't it? In any case, less hake should still be easier for the phone to deal with. Those algorithms aren't flawless.
    - sebzim4500 4y ago
      There's no way that the accelerators/gyrocscope would be accurate enough to remove the shake. According to google, the iphone gyroscope is accurate to within about 0.5 degrees, roughly two orders of magnitude away from being pixel accurate in a 1x zoom image.
      - eru 4y ago
        Thanks for providing the numbers!
  - nine_k 4y ago
    Maybe, but it looks like a problem of unscrambling an egg. The true image has been smeared over the sensor, superimposed on itself a bit. Maybe there is a good enough solution for the problem of finding the true image, but I can't imagine it to be computationally inexpensive.
    - QuackyTheDuck 4y ago
      This. Even when you stabilize the footage afterwards (digitally, not by stabilizing the sensor), there will be motion blur due to the lower shutter speed.
- pancrufty 4y ago
  I don’t get your point. Surely you’ve seen that the iPhone is perfectly able to do 10s handheld exposures. Something in the algorithm can unscramble those eggs because there’s no way it should be able to capture clear pictures with nearly no light.

nine_k 4y ago

Sensors may have the time, but our hands do not; they are unsteady in subtle ways. When making photos in low light, I always try to lean my phone against something (a bench, a lamppost, a tree, a building) to let the longer exposure be sharper.

adgjlsfhk1 4y ago
as long as there is anything to key onto it's possible to remove the shake algorithmically
- eru 4y ago
  > as long as there is anything to key onto it's possible to remove the shake algorithmically Why the requirement? The phone already has accelerometers, doesn't it? In any case, less hake should still be easier for the phone to deal with. Those algorithms aren't flawless.
  - sebzim4500 4y ago
    There's no way that the accelerators/gyrocscope would be accurate enough to remove the shake. According to google, the iphone gyroscope is accurate to within about 0.5 degrees, roughly two orders of magnitude away from being pixel accurate in a 1x zoom image.
    - eru 4y ago
      Thanks for providing the numbers!
- nine_k 4y ago
  Maybe, but it looks like a problem of unscrambling an egg. The true image has been smeared over the sensor, superimposed on itself a bit. Maybe there is a good enough solution for the problem of finding the true image, but I can't imagine it to be computationally inexpensive.
  - QuackyTheDuck 4y ago
    This. Even when you stabilize the footage afterwards (digitally, not by stabilizing the sensor), there will be motion blur due to the lower shutter speed.
pancrufty 4y ago
I don’t get your point. Surely you’ve seen that the iPhone is perfectly able to do 10s handheld exposures. Something in the algorithm can unscramble those eggs because there’s no way it should be able to capture clear pictures with nearly no light.