How movies move Flashcards
1
Q
persistence of vision
A
The image formed on the retina is retained for about 20 ms even after optical excitation has ceased. Essential factor in cinematography and TV for obtaining the illusion of continuity by means of rapidly flashing picture frames.
2
Q
the phi phenomenon
A
an illusion of movement that arises when stationary objects—light bulbs, for example—are placed side by side and illuminated rapidly one after another. The effect is frequently used on theatre marquees to give the impression of moving lights.
3
Q
critical flicker fusion
A
A film is usually shot and projected at 24 still frame
4
Q
frame rate
A
frames per second (fps) is a term used to describe how many still frames we see in a single second.
