Monocular Cue- Interposition

Interposition is a monocular cue that helps us to determine the relative depth of objects by considering which is closer. Specifically, if one object partially blocks the view of another, the object in front is perceived to be closer than the object it obscures. In the example below, the zebra figurine partially blocks the view of the cow behind it. As a result, our retinas correctly perceive the zebra to be closer to the eye than the cow.