Post on 20-Jul-2015
Animation:The Illusion of Motion
Visual Persistence
Definition:When the human eye retains an image(after image) for a fraction of a second on the retina after exposure to the image. This explains the ability for viewing a series of images as continous motion.
Thaumatrope Examples Batman Illusion Lightbulb Illusion
Argued as an inadequate explanation for cinema film and that instead the images would pile up.
Phi Phenomenon
Definition:In contrast to visual persistence, phi phenomenon is when a series of still images flash on and off in rapid succession that results in the illusion of movement. Flashes of light combined with broken moments of darkness produce the illusion.
Basic example This definition more appropriately lies behind
the moving images you see at the cinema. Examples
Frame Rate and Shutter Speed
Definition:Inanimation, still pictures are referred to as frames. Frame rate refers to number of frames per second.
Definition:Measuredin seconds, shutter speed is the amount of time a film or image is exposed to light.