title: Display of Moving Parts of a Scene.
abstract: Methods for emphasizing the moving parts of a scene. By photographic or electronic means, a past image can be subtracted from the present one to emphasize the moving parts of a motion picture scene. Rhythms and patterns of motion become more noticeable, and changes in velocity can give an impression of accelerations and the force pattern.
authors.forename: R S
authors.initials: RS
authors.lastname: Mackay