A technique in which the frequency at which film frames are captured is much lower than the frequency at which they are played back when viewing the sequence. When played at a normal playback speed, time appears to be moving faster or "lapsing". For example, if images of a scene are captured at a rate of 1 frame per second but then played back at a standard 30 frames per second, the resulting sequence appears to be occurring 30 times faster than it did in reality. Time-lapse photography is the opposite of high-speed or slow-motion photography, in which film is captured at a much higher rate than at which it is played back, appearing to slow down an otherwise fast action.
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