Why we see these frames (frames as in lines) moving vertically in pc monitors or tvs or other screens when they are recorded through a camera but not when see them with our eyes?
In: Physics
Both the camera and the monitor/tv capture or display pictures very rapidly – so rapidly that your eye can’t tell that they’re actually still images.
When you record a TV picture, your camera is recording at a certain speed, and the tv is displaying at a slightly different speed, and even if they were perfectly the same speed, the time each one starts is going to be slightly different.
So what happens is you’re getting a new set of still pictures taken of an old set of still pictures that are constantly being changed at different rates. Result? Gaps. Blanks. Kind of like looking at the world through a spinning fan – you can see what’s there, but there are constant interruptions.
Latest Answers