What is relative height in depth perception?

Relative height in depth perception refers to the idea that objects that are positioned higher in the field of vision are perceived as being farther away than those that are lower down. This principle is grounded in how our brains interpret visual information from the environment; objects that are closer to the horizon line or at a higher elevation within our visual field tend to appear further away due to the way our perspective works.

When looking at a scene, we tend to assume that the ground is relatively flat. As a result, if an object is higher up in our visual field, our brain interprets it as being situated at a greater distance in relation to the flat surface. This helps us navigate our environment and gauge distances between objects more effectively. By recognizing this cue, the brain creates a more accurate three-dimensional interpretation of the scene.