Many critics and scholars have commented upon the fact that frequently Ozu, instead of transitioning directly from the end of the opening credits to the first scene, or from one scene to another, interposes a shot or multiple shots—as many as six—of an object, or a group of objects, or a room, or a landscape, often (but not always) devoid of human figures. These units of film have been variously called "curtain shots," "intermediate spaces," "empty shots" or, most frequently, "pillow shots" (by analogy with the "pillow words" of classic Japanese verse).