Rotoscope

A rotoscope is a device that enables animators to trace live action movement, frame by frame, for use in animation. Originally, pre-recorded live-film images were projected onto a matte windowpane and redrawn by an animator. The device was invented by Max Fleischer, who used it in his series "Out of the Inkwell" starting around 1914, with his brother Dave Fleischer dressed in a clown outfit as the live-film reference for the character Koko the Clown.

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Motion capture is a form of digital rotoscope (often referred to by animators as "the devil's rotoscope").

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Frame: A frame or framework is a structural skeleton, which supports the other components of the object. It is used in this basic sense in art, construction, and mechanical engineering, and the expression 'frame' for eyeglasses....

Animator: An animator is one who is involved in the process of animation. How this person actually creates animation depends on the field in which he or she works....

Max Fleischer: Max Fleischer (July 19, 1883–September 11, 1972) was an important pioneer in the development of the animated cartoon. He brought such characters as Betty Boop, Koko the Clown, Popeye, and Superman to the movie screen, and was responsible for a number of technological innovations....