Primeras rotoscopias

"Rotoscoping is an animation technique in which animators trace over live-action film movement, frame by frame, for use in animated films. Originally, pre-recorded live-action film images were projected onto a frosted glass panel and re-drawn by an animator. This projection equipment is called a rotoscope, although this device has been replaced by computers in recent years. More recently, the rotoscoping technique has been referred to as interpolated rotoscoping

The technique 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."

De Wikipedia