unit 31 computer animation (M1)

Persistence of vision

Persistence of vision is where the retina is taken into an afterimage for approximately one twenty-fifth of a second where the retina believes that it’s being tricked into motion perception. It also explains why the black spaces seem to disappear from the illusion. I will be explaining the persistence of vision. This is very important because otherwise we wouldn’t be able to perceive vision.

Persistence of vision is a theory in which when we show a number of images together within a short time period, it gives the illusion that the images are moving. Because our brain can only process a certain amount of information at any given time, when images are shown in a quick succession, we see it as if it's moving. In films, the frames per second are in the thousands, which in turn make the movie incredibly smooth. The minimum amounts of frames per second humans need in order to define the images as a movie is 24.

Although the movie won't be as smooth as it could, we still will consider it a movie or animation. There are other theories; for example, some scientists believe that it's caused by the Beta Movement, which the brain is assuming that there's movement when images are shown quickly one after another.