Which of the following techniques enhances the realism in animated films by tracing over live action sequences?

Rotoscoping is a technique that significantly enhances realism in animated films by allowing animators to trace over live-action footage frame by frame. This method was pioneered by Max Fleischer in the early 20th century and provides a high level of detail and movement accuracy that can be difficult to achieve through standard animation techniques. By directly referencing live action, rotoscoping captures the nuances of human motion and expressions, resulting in animations that appear more lifelike and fluid.

While traditional animation, cel animation, and stop-motion animation each have their own unique methodologies and artistic qualities, they do not inherently rely on live-action tracing for their execution. Traditional and cel animation involve drawing or painting on transparent sheets to create movements, and stop-motion involves manipulating physical objects and photographing them in incremental stages. In contrast, rotoscoping stands out because it directly incorporates real human performances, making it a distinctive process that contributes to the realism in animated films.