What depth perception cue is based on the overlap of objects?

The depth perception cue that is based on the overlap of objects is interposition. This cue occurs when one object partially blocks the view of another object. The object that is obstructed is perceived as being farther away than the object that is doing the blocking. Interposition is a valuable depth cue because it provides visual information about the spatial relationships between objects. For example, if you see a tree blocking part of a building, you interpret the building as being behind the tree, which helps in establishing a sense of depth in your visual field.

Other cues related to depth perception, such as relative size and linear perspective, involve the sizes of objects and the convergence of parallel lines, respectively, while binocular parallax refers to the slight difference in images seen by each eye due to their separation. These cues contribute to depth perception in different ways, but interposition specifically relies on the phenomenon of overlapping objects to convey depth.