3 ms·

Does this even make sense? I am not doubting it,that they've made a superb machine, but which photons does the camera catch to see photons that travel parallel

• fletchowns 15y ago
  Yes, it makes sense. What do you mean which photons? The photons that the camera picks up are the photons from laser pulse, after they have reflected off the scene. Pause it at 2:20 and look at the shape of the light as it moves. Imagine that you are in super slow-mo mode for a second. You hold up your hand and shine a flashlight on it. Since everything is in super slow-mo, you can watch as the photons strike your hand first, and it lights up. The photons that don't strike your hand continue on towards the wall next to you, and then some time after your hand lit up, the wall lights up, with a shadow of your hand.
  • JabavuAdams 15y ago
    I think the parent's point was that we can't see or image anything until those photons enter our sensor. > you can watch as the photons strike your hand first, and it lights up. The photons that don't strike your hand continue on towards the wall next to This analogy doesn't work. In order to watch, some photons have to enter our eyes, but they haven't got there yet, as they're just now interacting with our hand, etc. I.e until sufficient photons enter our eyes (sensors), there's nothing to watch. This points to the fact that the technique is not imaging the whole scene at once, but doing some kind of reconstruction on an assumed static scene.